extern void __VERIFIER_error() __attribute__ ((__noreturn__)); /* Generated by CIL v. 1.5.1 */ /* print_CIL_Input is false */ typedef unsigned char __u8; typedef unsigned short __u16; typedef int __s32; typedef unsigned int __u32; typedef unsigned long long __u64; typedef signed char s8; typedef unsigned char u8; typedef unsigned short u16; typedef int s32; typedef unsigned int u32; typedef long long s64; typedef unsigned long long u64; typedef long __kernel_long_t; typedef unsigned long __kernel_ulong_t; typedef int __kernel_pid_t; typedef unsigned int __kernel_uid32_t; typedef unsigned int __kernel_gid32_t; typedef __kernel_ulong_t __kernel_size_t; typedef __kernel_long_t __kernel_ssize_t; typedef long long __kernel_loff_t; typedef __kernel_long_t __kernel_time_t; typedef __kernel_long_t __kernel_clock_t; typedef int __kernel_timer_t; typedef int __kernel_clockid_t; struct kernel_symbol { unsigned long value ; char const *name ; }; struct module; typedef __u32 __kernel_dev_t; typedef __kernel_dev_t dev_t; typedef unsigned short umode_t; typedef __kernel_pid_t pid_t; typedef __kernel_clockid_t clockid_t; typedef _Bool bool; typedef __kernel_uid32_t uid_t; typedef __kernel_gid32_t gid_t; typedef __kernel_loff_t loff_t; typedef __kernel_size_t size_t; typedef __kernel_ssize_t ssize_t; typedef __kernel_time_t time_t; typedef __s32 int32_t; typedef __u32 uint32_t; typedef __u64 uint64_t; typedef unsigned long sector_t; typedef unsigned long blkcnt_t; typedef unsigned int gfp_t; typedef unsigned int fmode_t; typedef unsigned int oom_flags_t; struct __anonstruct_atomic_t_6 { int counter ; }; typedef struct __anonstruct_atomic_t_6 atomic_t; struct __anonstruct_atomic64_t_7 { long counter ; }; typedef struct __anonstruct_atomic64_t_7 atomic64_t; struct list_head { struct list_head *next ; struct list_head *prev ; }; struct hlist_node; struct hlist_head { struct hlist_node *first ; }; struct hlist_node { struct hlist_node *next ; struct hlist_node **pprev ; }; struct callback_head { struct callback_head *next ; void (*func)(struct callback_head * ) ; }; struct pt_regs { unsigned long r15 ; unsigned long r14 ; unsigned long r13 ; unsigned long r12 ; unsigned long bp ; unsigned long bx ; unsigned long r11 ; unsigned long r10 ; unsigned long r9 ; unsigned long r8 ; unsigned long ax ; unsigned long cx ; unsigned long dx ; unsigned long si ; unsigned long di ; unsigned long orig_ax ; unsigned long ip ; unsigned long cs ; unsigned long flags ; unsigned long sp ; unsigned long ss ; }; struct __anonstruct____missing_field_name_9 { unsigned int a ; unsigned int b ; }; struct __anonstruct____missing_field_name_10 { u16 limit0 ; u16 base0 ; unsigned char base1 ; unsigned char type : 4 ; unsigned char s : 1 ; unsigned char dpl : 2 ; unsigned char p : 1 ; unsigned char limit : 4 ; unsigned char avl : 1 ; unsigned char l : 1 ; unsigned char d : 1 ; unsigned char g : 1 ; unsigned char base2 ; }; union __anonunion____missing_field_name_8 { struct __anonstruct____missing_field_name_9 __annonCompField4 ; struct __anonstruct____missing_field_name_10 __annonCompField5 ; }; struct desc_struct { union __anonunion____missing_field_name_8 __annonCompField6 ; }; typedef unsigned long pteval_t; typedef unsigned long pgdval_t; typedef unsigned long pgprotval_t; struct __anonstruct_pte_t_11 { pteval_t pte ; }; typedef struct __anonstruct_pte_t_11 pte_t; struct pgprot { pgprotval_t pgprot ; }; typedef struct pgprot pgprot_t; struct __anonstruct_pgd_t_12 { pgdval_t pgd ; }; typedef struct __anonstruct_pgd_t_12 pgd_t; struct page; typedef struct page *pgtable_t; struct file; struct seq_file; struct thread_struct; struct mm_struct; struct task_struct; struct cpumask; struct qspinlock { atomic_t val ; }; typedef struct qspinlock arch_spinlock_t; struct qrwlock { atomic_t cnts ; arch_spinlock_t lock ; }; typedef struct qrwlock arch_rwlock_t; typedef void (*ctor_fn_t)(void); struct device; struct file_operations; struct completion; struct bug_entry { int bug_addr_disp ; int file_disp ; unsigned short line ; unsigned short flags ; }; struct timespec; struct compat_timespec; struct __anonstruct_futex_16 { u32 *uaddr ; u32 val ; u32 flags ; u32 bitset ; u64 time ; u32 *uaddr2 ; }; struct __anonstruct_nanosleep_17 { clockid_t clockid ; struct timespec *rmtp ; struct compat_timespec *compat_rmtp ; u64 expires ; }; struct pollfd; struct __anonstruct_poll_18 { struct pollfd *ufds ; int nfds ; int has_timeout ; unsigned long tv_sec ; unsigned long tv_nsec ; }; union __anonunion____missing_field_name_15 { struct __anonstruct_futex_16 futex ; struct __anonstruct_nanosleep_17 nanosleep ; struct __anonstruct_poll_18 poll ; }; struct restart_block { long (*fn)(struct restart_block * ) ; union __anonunion____missing_field_name_15 __annonCompField7 ; }; struct kernel_vm86_regs { struct pt_regs pt ; unsigned short es ; unsigned short __esh ; unsigned short ds ; unsigned short __dsh ; unsigned short fs ; unsigned short __fsh ; unsigned short gs ; unsigned short __gsh ; }; union __anonunion____missing_field_name_19 { struct pt_regs *regs ; struct kernel_vm86_regs *vm86 ; }; struct math_emu_info { long ___orig_eip ; union __anonunion____missing_field_name_19 __annonCompField8 ; }; struct cpumask { unsigned long bits[128U] ; }; typedef struct cpumask cpumask_t; typedef struct cpumask *cpumask_var_t; struct fregs_state { u32 cwd ; u32 swd ; u32 twd ; u32 fip ; u32 fcs ; u32 foo ; u32 fos ; u32 st_space[20U] ; u32 status ; }; struct __anonstruct____missing_field_name_29 { u64 rip ; u64 rdp ; }; struct __anonstruct____missing_field_name_30 { u32 fip ; u32 fcs ; u32 foo ; u32 fos ; }; union __anonunion____missing_field_name_28 { struct __anonstruct____missing_field_name_29 __annonCompField12 ; struct __anonstruct____missing_field_name_30 __annonCompField13 ; }; union __anonunion____missing_field_name_31 { u32 padding1[12U] ; u32 sw_reserved[12U] ; }; struct fxregs_state { u16 cwd ; u16 swd ; u16 twd ; u16 fop ; union __anonunion____missing_field_name_28 __annonCompField14 ; u32 mxcsr ; u32 mxcsr_mask ; u32 st_space[32U] ; u32 xmm_space[64U] ; u32 padding[12U] ; union __anonunion____missing_field_name_31 __annonCompField15 ; }; struct swregs_state { u32 cwd ; u32 swd ; u32 twd ; u32 fip ; u32 fcs ; u32 foo ; u32 fos ; u32 st_space[20U] ; u8 ftop ; u8 changed ; u8 lookahead ; u8 no_update ; u8 rm ; u8 alimit ; struct math_emu_info *info ; u32 entry_eip ; }; struct xstate_header { u64 xfeatures ; u64 xcomp_bv ; u64 reserved[6U] ; }; struct xregs_state { struct fxregs_state i387 ; struct xstate_header header ; u8 __reserved[464U] ; }; union fpregs_state { struct fregs_state fsave ; struct fxregs_state fxsave ; struct swregs_state soft ; struct xregs_state xsave ; }; struct fpu { union fpregs_state state ; unsigned int last_cpu ; unsigned char fpstate_active ; unsigned char fpregs_active ; unsigned char counter ; }; struct seq_operations; struct perf_event; struct thread_struct { struct desc_struct tls_array[3U] ; unsigned long sp0 ; unsigned long sp ; unsigned short es ; unsigned short ds ; unsigned short fsindex ; unsigned short gsindex ; unsigned long fs ; unsigned long gs ; struct fpu fpu ; struct perf_event *ptrace_bps[4U] ; unsigned long debugreg6 ; unsigned long ptrace_dr7 ; unsigned long cr2 ; unsigned long trap_nr ; unsigned long error_code ; unsigned long *io_bitmap_ptr ; unsigned long iopl ; unsigned int io_bitmap_max ; }; typedef atomic64_t atomic_long_t; struct lockdep_map; struct stack_trace { unsigned int nr_entries ; unsigned int max_entries ; unsigned long *entries ; int skip ; }; struct lockdep_subclass_key { char __one_byte ; }; struct lock_class_key { struct lockdep_subclass_key subkeys[8U] ; }; struct lock_class { struct list_head hash_entry ; struct list_head lock_entry ; struct lockdep_subclass_key *key ; unsigned int subclass ; unsigned int dep_gen_id ; unsigned long usage_mask ; struct stack_trace usage_traces[13U] ; struct list_head locks_after ; struct list_head locks_before ; unsigned int version ; unsigned long ops ; char const *name ; int name_version ; unsigned long contention_point[4U] ; unsigned long contending_point[4U] ; }; struct lockdep_map { struct lock_class_key *key ; struct lock_class *class_cache[2U] ; char const *name ; int cpu ; unsigned long ip ; }; struct held_lock { u64 prev_chain_key ; unsigned long acquire_ip ; struct lockdep_map *instance ; struct lockdep_map *nest_lock ; u64 waittime_stamp ; u64 holdtime_stamp ; unsigned short class_idx : 13 ; unsigned char irq_context : 2 ; unsigned char trylock : 1 ; unsigned char read : 2 ; unsigned char check : 1 ; unsigned char hardirqs_off : 1 ; unsigned short references : 12 ; unsigned int pin_count ; }; struct raw_spinlock { arch_spinlock_t raw_lock ; unsigned int magic ; unsigned int owner_cpu ; void *owner ; struct lockdep_map dep_map ; }; typedef struct raw_spinlock raw_spinlock_t; struct __anonstruct____missing_field_name_35 { u8 __padding[24U] ; struct lockdep_map dep_map ; }; union __anonunion____missing_field_name_34 { struct raw_spinlock rlock ; struct __anonstruct____missing_field_name_35 __annonCompField17 ; }; struct spinlock { union __anonunion____missing_field_name_34 __annonCompField18 ; }; typedef struct spinlock spinlock_t; struct __anonstruct_rwlock_t_36 { arch_rwlock_t raw_lock ; unsigned int magic ; unsigned int owner_cpu ; void *owner ; struct lockdep_map dep_map ; }; typedef struct __anonstruct_rwlock_t_36 rwlock_t; struct seqcount { unsigned int sequence ; struct lockdep_map dep_map ; }; typedef struct seqcount seqcount_t; struct __anonstruct_seqlock_t_45 { struct seqcount seqcount ; spinlock_t lock ; }; typedef struct __anonstruct_seqlock_t_45 seqlock_t; struct timespec { __kernel_time_t tv_sec ; long tv_nsec ; }; struct user_namespace; struct __anonstruct_kuid_t_46 { uid_t val ; }; typedef struct __anonstruct_kuid_t_46 kuid_t; struct __anonstruct_kgid_t_47 { gid_t val ; }; typedef struct __anonstruct_kgid_t_47 kgid_t; struct kstat { u64 ino ; dev_t dev ; umode_t mode ; unsigned int nlink ; kuid_t uid ; kgid_t gid ; dev_t rdev ; loff_t size ; struct timespec atime ; struct timespec mtime ; struct timespec ctime ; unsigned long blksize ; unsigned long long blocks ; }; struct vm_area_struct; struct __wait_queue; typedef struct __wait_queue wait_queue_t; struct __wait_queue { unsigned int flags ; void *private ; int (*func)(wait_queue_t * , unsigned int , int , void * ) ; struct list_head task_list ; }; struct wait_bit_key { void *flags ; int bit_nr ; unsigned long timeout ; }; struct __wait_queue_head { spinlock_t lock ; struct list_head task_list ; }; typedef struct __wait_queue_head wait_queue_head_t; typedef int wait_bit_action_f(struct wait_bit_key * ); struct __anonstruct_nodemask_t_48 { unsigned long bits[16U] ; }; typedef struct __anonstruct_nodemask_t_48 nodemask_t; struct optimistic_spin_queue { atomic_t tail ; }; struct mutex { atomic_t count ; spinlock_t wait_lock ; struct list_head wait_list ; struct task_struct *owner ; void *magic ; struct lockdep_map dep_map ; }; struct mutex_waiter { struct list_head list ; struct task_struct *task ; void *magic ; }; struct rw_semaphore; struct rw_semaphore { long count ; struct list_head wait_list ; raw_spinlock_t wait_lock ; struct optimistic_spin_queue osq ; struct task_struct *owner ; struct lockdep_map dep_map ; }; struct completion { unsigned int done ; wait_queue_head_t wait ; }; union ktime { s64 tv64 ; }; typedef union ktime ktime_t; struct timer_list { struct hlist_node entry ; unsigned long expires ; void (*function)(unsigned long ) ; unsigned long data ; u32 flags ; int slack ; int start_pid ; void *start_site ; char start_comm[16U] ; struct lockdep_map lockdep_map ; }; struct hrtimer; enum hrtimer_restart; struct rb_node { unsigned long __rb_parent_color ; struct rb_node *rb_right ; struct rb_node *rb_left ; }; struct rb_root { struct rb_node *rb_node ; }; struct nsproxy; struct workqueue_struct; struct work_struct; struct work_struct { atomic_long_t data ; struct list_head entry ; void (*func)(struct work_struct * ) ; struct lockdep_map lockdep_map ; }; struct delayed_work { struct work_struct work ; struct timer_list timer ; struct workqueue_struct *wq ; int cpu ; }; struct pm_message { int event ; }; typedef struct pm_message pm_message_t; struct dev_pm_ops { int (*prepare)(struct device * ) ; void (*complete)(struct device * ) ; int (*suspend)(struct device * ) ; int (*resume)(struct device * ) ; int (*freeze)(struct device * ) ; int (*thaw)(struct device * ) ; int (*poweroff)(struct device * ) ; int (*restore)(struct device * ) ; int (*suspend_late)(struct device * ) ; int (*resume_early)(struct device * ) ; int (*freeze_late)(struct device * ) ; int (*thaw_early)(struct device * ) ; int (*poweroff_late)(struct device * ) ; int (*restore_early)(struct device * ) ; int (*suspend_noirq)(struct device * ) ; int (*resume_noirq)(struct device * ) ; int (*freeze_noirq)(struct device * ) ; int (*thaw_noirq)(struct device * ) ; int (*poweroff_noirq)(struct device * ) ; int (*restore_noirq)(struct device * ) ; int (*runtime_suspend)(struct device * ) ; int (*runtime_resume)(struct device * ) ; int (*runtime_idle)(struct device * ) ; }; enum rpm_status { RPM_ACTIVE = 0, RPM_RESUMING = 1, RPM_SUSPENDED = 2, RPM_SUSPENDING = 3 } ; enum rpm_request { RPM_REQ_NONE = 0, RPM_REQ_IDLE = 1, RPM_REQ_SUSPEND = 2, RPM_REQ_AUTOSUSPEND = 3, RPM_REQ_RESUME = 4 } ; struct wakeup_source; struct wake_irq; struct pm_subsys_data { spinlock_t lock ; unsigned int refcount ; struct list_head clock_list ; }; struct dev_pm_qos; struct dev_pm_info { pm_message_t power_state ; unsigned char can_wakeup : 1 ; unsigned char async_suspend : 1 ; bool is_prepared ; bool is_suspended ; bool is_noirq_suspended ; bool is_late_suspended ; bool ignore_children ; bool early_init ; bool direct_complete ; spinlock_t lock ; struct list_head entry ; struct completion completion ; struct wakeup_source *wakeup ; bool wakeup_path ; bool syscore ; struct timer_list suspend_timer ; unsigned long timer_expires ; struct work_struct work ; wait_queue_head_t wait_queue ; struct wake_irq *wakeirq ; atomic_t usage_count ; atomic_t child_count ; unsigned char disable_depth : 3 ; unsigned char idle_notification : 1 ; unsigned char request_pending : 1 ; unsigned char deferred_resume : 1 ; unsigned char run_wake : 1 ; unsigned char runtime_auto : 1 ; unsigned char no_callbacks : 1 ; unsigned char irq_safe : 1 ; unsigned char use_autosuspend : 1 ; unsigned char timer_autosuspends : 1 ; unsigned char memalloc_noio : 1 ; enum rpm_request request ; enum rpm_status runtime_status ; int runtime_error ; int autosuspend_delay ; unsigned long last_busy ; unsigned long active_jiffies ; unsigned long suspended_jiffies ; unsigned long accounting_timestamp ; struct pm_subsys_data *subsys_data ; void (*set_latency_tolerance)(struct device * , s32 ) ; struct dev_pm_qos *qos ; }; struct dev_pm_domain { struct dev_pm_ops ops ; void (*detach)(struct device * , bool ) ; int (*activate)(struct device * ) ; void (*sync)(struct device * ) ; void (*dismiss)(struct device * ) ; }; struct __anonstruct_mm_context_t_115 { void *ldt ; int size ; unsigned short ia32_compat ; struct mutex lock ; void *vdso ; atomic_t perf_rdpmc_allowed ; }; typedef struct __anonstruct_mm_context_t_115 mm_context_t; struct bio_vec; struct llist_node; struct llist_node { struct llist_node *next ; }; struct call_single_data { struct llist_node llist ; void (*func)(void * ) ; void *info ; unsigned int flags ; }; struct cred; struct inode; struct arch_uprobe_task { unsigned long saved_scratch_register ; unsigned int saved_trap_nr ; unsigned int saved_tf ; }; enum uprobe_task_state { UTASK_RUNNING = 0, UTASK_SSTEP = 1, UTASK_SSTEP_ACK = 2, UTASK_SSTEP_TRAPPED = 3 } ; struct __anonstruct____missing_field_name_148 { struct arch_uprobe_task autask ; unsigned long vaddr ; }; struct __anonstruct____missing_field_name_149 { struct callback_head dup_xol_work ; unsigned long dup_xol_addr ; }; union __anonunion____missing_field_name_147 { struct __anonstruct____missing_field_name_148 __annonCompField33 ; struct __anonstruct____missing_field_name_149 __annonCompField34 ; }; struct uprobe; struct return_instance; struct uprobe_task { enum uprobe_task_state state ; union __anonunion____missing_field_name_147 __annonCompField35 ; struct uprobe *active_uprobe ; unsigned long xol_vaddr ; struct return_instance *return_instances ; unsigned int depth ; }; struct xol_area; struct uprobes_state { struct xol_area *xol_area ; }; struct address_space; struct mem_cgroup; typedef void compound_page_dtor(struct page * ); union __anonunion____missing_field_name_150 { struct address_space *mapping ; void *s_mem ; }; union __anonunion____missing_field_name_152 { unsigned long index ; void *freelist ; bool pfmemalloc ; }; struct __anonstruct____missing_field_name_156 { unsigned short inuse ; unsigned short objects : 15 ; unsigned char frozen : 1 ; }; union __anonunion____missing_field_name_155 { atomic_t _mapcount ; struct __anonstruct____missing_field_name_156 __annonCompField38 ; int units ; }; struct __anonstruct____missing_field_name_154 { union __anonunion____missing_field_name_155 __annonCompField39 ; atomic_t _count ; }; union __anonunion____missing_field_name_153 { unsigned long counters ; struct __anonstruct____missing_field_name_154 __annonCompField40 ; unsigned int active ; }; struct __anonstruct____missing_field_name_151 { union __anonunion____missing_field_name_152 __annonCompField37 ; union __anonunion____missing_field_name_153 __annonCompField41 ; }; struct __anonstruct____missing_field_name_158 { struct page *next ; int pages ; int pobjects ; }; struct slab; struct __anonstruct____missing_field_name_159 { compound_page_dtor *compound_dtor ; unsigned long compound_order ; }; union __anonunion____missing_field_name_157 { struct list_head lru ; struct __anonstruct____missing_field_name_158 __annonCompField43 ; struct slab *slab_page ; struct callback_head callback_head ; struct __anonstruct____missing_field_name_159 __annonCompField44 ; pgtable_t pmd_huge_pte ; }; struct kmem_cache; union __anonunion____missing_field_name_160 { unsigned long private ; spinlock_t *ptl ; struct kmem_cache *slab_cache ; struct page *first_page ; }; struct page { unsigned long flags ; union __anonunion____missing_field_name_150 __annonCompField36 ; struct __anonstruct____missing_field_name_151 __annonCompField42 ; union __anonunion____missing_field_name_157 __annonCompField45 ; union __anonunion____missing_field_name_160 __annonCompField46 ; struct mem_cgroup *mem_cgroup ; }; struct page_frag { struct page *page ; __u32 offset ; __u32 size ; }; struct __anonstruct_shared_161 { struct rb_node rb ; unsigned long rb_subtree_last ; }; struct anon_vma; struct vm_operations_struct; struct mempolicy; struct vm_area_struct { unsigned long vm_start ; unsigned long vm_end ; struct vm_area_struct *vm_next ; struct vm_area_struct *vm_prev ; struct rb_node vm_rb ; unsigned long rb_subtree_gap ; struct mm_struct *vm_mm ; pgprot_t vm_page_prot ; unsigned long vm_flags ; struct __anonstruct_shared_161 shared ; struct list_head anon_vma_chain ; struct anon_vma *anon_vma ; struct vm_operations_struct const *vm_ops ; unsigned long vm_pgoff ; struct file *vm_file ; void *vm_private_data ; struct mempolicy *vm_policy ; }; struct core_thread { struct task_struct *task ; struct core_thread *next ; }; struct core_state { atomic_t nr_threads ; struct core_thread dumper ; struct completion startup ; }; struct task_rss_stat { int events ; int count[3U] ; }; struct mm_rss_stat { atomic_long_t count[3U] ; }; struct kioctx_table; struct linux_binfmt; struct mmu_notifier_mm; struct mm_struct { struct vm_area_struct *mmap ; struct rb_root mm_rb ; u32 vmacache_seqnum ; unsigned long (*get_unmapped_area)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ) ; unsigned long mmap_base ; unsigned long mmap_legacy_base ; unsigned long task_size ; unsigned long highest_vm_end ; pgd_t *pgd ; atomic_t mm_users ; atomic_t mm_count ; atomic_long_t nr_ptes ; atomic_long_t nr_pmds ; int map_count ; spinlock_t page_table_lock ; struct rw_semaphore mmap_sem ; struct list_head mmlist ; unsigned long hiwater_rss ; unsigned long hiwater_vm ; unsigned long total_vm ; unsigned long locked_vm ; unsigned long pinned_vm ; unsigned long shared_vm ; unsigned long exec_vm ; unsigned long stack_vm ; unsigned long def_flags ; unsigned long start_code ; unsigned long end_code ; unsigned long start_data ; unsigned long end_data ; unsigned long start_brk ; unsigned long brk ; unsigned long start_stack ; unsigned long arg_start ; unsigned long arg_end ; unsigned long env_start ; unsigned long env_end ; unsigned long saved_auxv[46U] ; struct mm_rss_stat rss_stat ; struct linux_binfmt *binfmt ; cpumask_var_t cpu_vm_mask_var ; mm_context_t context ; unsigned long flags ; struct core_state *core_state ; spinlock_t ioctx_lock ; struct kioctx_table *ioctx_table ; struct task_struct *owner ; struct file *exe_file ; struct mmu_notifier_mm *mmu_notifier_mm ; struct cpumask cpumask_allocation ; unsigned long numa_next_scan ; unsigned long numa_scan_offset ; int numa_scan_seq ; bool tlb_flush_pending ; struct uprobes_state uprobes_state ; void *bd_addr ; }; typedef __u64 Elf64_Addr; typedef __u16 Elf64_Half; typedef __u32 Elf64_Word; typedef __u64 Elf64_Xword; struct elf64_sym { Elf64_Word st_name ; unsigned char st_info ; unsigned char st_other ; Elf64_Half st_shndx ; Elf64_Addr st_value ; Elf64_Xword st_size ; }; typedef struct elf64_sym Elf64_Sym; union __anonunion____missing_field_name_166 { unsigned long bitmap[4U] ; struct callback_head callback_head ; }; struct idr_layer { int prefix ; int layer ; struct idr_layer *ary[256U] ; int count ; union __anonunion____missing_field_name_166 __annonCompField47 ; }; struct idr { struct idr_layer *hint ; struct idr_layer *top ; int layers ; int cur ; spinlock_t lock ; int id_free_cnt ; struct idr_layer *id_free ; }; struct ida_bitmap { long nr_busy ; unsigned long bitmap[15U] ; }; struct ida { struct idr idr ; struct ida_bitmap *free_bitmap ; }; struct dentry; struct iattr; struct super_block; struct file_system_type; struct kernfs_open_node; struct kernfs_iattrs; struct kernfs_root; struct kernfs_elem_dir { unsigned long subdirs ; struct rb_root children ; struct kernfs_root *root ; }; struct kernfs_node; struct kernfs_elem_symlink { struct kernfs_node *target_kn ; }; struct kernfs_ops; struct kernfs_elem_attr { struct kernfs_ops const *ops ; struct kernfs_open_node *open ; loff_t size ; struct kernfs_node *notify_next ; }; union __anonunion____missing_field_name_171 { struct kernfs_elem_dir dir ; struct kernfs_elem_symlink symlink ; struct kernfs_elem_attr attr ; }; struct kernfs_node { atomic_t count ; atomic_t active ; struct lockdep_map dep_map ; struct kernfs_node *parent ; char const *name ; struct rb_node rb ; void const *ns ; unsigned int hash ; union __anonunion____missing_field_name_171 __annonCompField48 ; void *priv ; unsigned short flags ; umode_t mode ; unsigned int ino ; struct kernfs_iattrs *iattr ; }; struct kernfs_syscall_ops { int (*remount_fs)(struct kernfs_root * , int * , char * ) ; int (*show_options)(struct seq_file * , struct kernfs_root * ) ; int (*mkdir)(struct kernfs_node * , char const * , umode_t ) ; int (*rmdir)(struct kernfs_node * ) ; int (*rename)(struct kernfs_node * , struct kernfs_node * , char const * ) ; }; struct kernfs_root { struct kernfs_node *kn ; unsigned int flags ; struct ida ino_ida ; struct kernfs_syscall_ops *syscall_ops ; struct list_head supers ; wait_queue_head_t deactivate_waitq ; }; struct kernfs_open_file { struct kernfs_node *kn ; struct file *file ; void *priv ; struct mutex mutex ; int event ; struct list_head list ; char *prealloc_buf ; size_t atomic_write_len ; bool mmapped ; struct vm_operations_struct const *vm_ops ; }; struct kernfs_ops { int (*seq_show)(struct seq_file * , void * ) ; void *(*seq_start)(struct seq_file * , loff_t * ) ; void *(*seq_next)(struct seq_file * , void * , loff_t * ) ; void (*seq_stop)(struct seq_file * , void * ) ; ssize_t (*read)(struct kernfs_open_file * , char * , size_t , loff_t ) ; size_t atomic_write_len ; bool prealloc ; ssize_t (*write)(struct kernfs_open_file * , char * , size_t , loff_t ) ; int (*mmap)(struct kernfs_open_file * , struct vm_area_struct * ) ; struct lock_class_key lockdep_key ; }; struct sock; struct kobject; enum kobj_ns_type { KOBJ_NS_TYPE_NONE = 0, KOBJ_NS_TYPE_NET = 1, KOBJ_NS_TYPES = 2 } ; struct kobj_ns_type_operations { enum kobj_ns_type type ; bool (*current_may_mount)(void) ; void *(*grab_current_ns)(void) ; void const *(*netlink_ns)(struct sock * ) ; void const *(*initial_ns)(void) ; void (*drop_ns)(void * ) ; }; struct bin_attribute; struct attribute { char const *name ; umode_t mode ; bool ignore_lockdep ; struct lock_class_key *key ; struct lock_class_key skey ; }; struct attribute_group { char const *name ; umode_t (*is_visible)(struct kobject * , struct attribute * , int ) ; struct attribute **attrs ; struct bin_attribute **bin_attrs ; }; struct bin_attribute { struct attribute attr ; size_t size ; void *private ; ssize_t (*read)(struct file * , struct kobject * , struct bin_attribute * , char * , loff_t , size_t ) ; ssize_t (*write)(struct file * , struct kobject * , struct bin_attribute * , char * , loff_t , size_t ) ; int (*mmap)(struct file * , struct kobject * , struct bin_attribute * , struct vm_area_struct * ) ; }; struct sysfs_ops { ssize_t (*show)(struct kobject * , struct attribute * , char * ) ; ssize_t (*store)(struct kobject * , struct attribute * , char const * , size_t ) ; }; struct kref { atomic_t refcount ; }; struct kset; struct kobj_type; struct kobject { char const *name ; struct list_head entry ; struct kobject *parent ; struct kset *kset ; struct kobj_type *ktype ; struct kernfs_node *sd ; struct kref kref ; struct delayed_work release ; unsigned char state_initialized : 1 ; unsigned char state_in_sysfs : 1 ; unsigned char state_add_uevent_sent : 1 ; unsigned char state_remove_uevent_sent : 1 ; unsigned char uevent_suppress : 1 ; }; struct kobj_type { void (*release)(struct kobject * ) ; struct sysfs_ops const *sysfs_ops ; struct attribute **default_attrs ; struct kobj_ns_type_operations const *(*child_ns_type)(struct kobject * ) ; void const *(*namespace)(struct kobject * ) ; }; struct kobj_uevent_env { char *argv[3U] ; char *envp[32U] ; int envp_idx ; char buf[2048U] ; int buflen ; }; struct kset_uevent_ops { int (* const filter)(struct kset * , struct kobject * ) ; char const *(* const name)(struct kset * , struct kobject * ) ; int (* const uevent)(struct kset * , struct kobject * , struct kobj_uevent_env * ) ; }; struct kset { struct list_head list ; spinlock_t list_lock ; struct kobject kobj ; struct kset_uevent_ops const *uevent_ops ; }; struct kernel_param; struct kernel_param_ops { unsigned int flags ; int (*set)(char const * , struct kernel_param const * ) ; int (*get)(char * , struct kernel_param const * ) ; void (*free)(void * ) ; }; struct kparam_string; struct kparam_array; union __anonunion____missing_field_name_172 { void *arg ; struct kparam_string const *str ; struct kparam_array const *arr ; }; struct kernel_param { char const *name ; struct module *mod ; struct kernel_param_ops const *ops ; u16 const perm ; s8 level ; u8 flags ; union __anonunion____missing_field_name_172 __annonCompField49 ; }; struct kparam_string { unsigned int maxlen ; char *string ; }; struct kparam_array { unsigned int max ; unsigned int elemsize ; unsigned int *num ; struct kernel_param_ops const *ops ; void *elem ; }; struct latch_tree_node { struct rb_node node[2U] ; }; struct mod_arch_specific { }; struct module_param_attrs; struct module_kobject { struct kobject kobj ; struct module *mod ; struct kobject *drivers_dir ; struct module_param_attrs *mp ; struct completion *kobj_completion ; }; struct module_attribute { struct attribute attr ; ssize_t (*show)(struct module_attribute * , struct module_kobject * , char * ) ; ssize_t (*store)(struct module_attribute * , struct module_kobject * , char const * , size_t ) ; void (*setup)(struct module * , char const * ) ; int (*test)(struct module * ) ; void (*free)(struct module * ) ; }; struct exception_table_entry; enum module_state { MODULE_STATE_LIVE = 0, MODULE_STATE_COMING = 1, MODULE_STATE_GOING = 2, MODULE_STATE_UNFORMED = 3 } ; struct mod_tree_node { struct module *mod ; struct latch_tree_node node ; }; struct module_sect_attrs; struct module_notes_attrs; struct tracepoint; struct trace_event_call; struct trace_enum_map; struct module { enum module_state state ; struct list_head list ; char name[56U] ; struct module_kobject mkobj ; struct module_attribute *modinfo_attrs ; char const *version ; char const *srcversion ; struct kobject *holders_dir ; struct kernel_symbol const *syms ; unsigned long const *crcs ; unsigned int num_syms ; struct mutex param_lock ; struct kernel_param *kp ; unsigned int num_kp ; unsigned int num_gpl_syms ; struct kernel_symbol const *gpl_syms ; unsigned long const *gpl_crcs ; struct kernel_symbol const *unused_syms ; unsigned long const *unused_crcs ; unsigned int num_unused_syms ; unsigned int num_unused_gpl_syms ; struct kernel_symbol const *unused_gpl_syms ; unsigned long const *unused_gpl_crcs ; bool sig_ok ; bool async_probe_requested ; struct kernel_symbol const *gpl_future_syms ; unsigned long const *gpl_future_crcs ; unsigned int num_gpl_future_syms ; unsigned int num_exentries ; struct exception_table_entry *extable ; int (*init)(void) ; void *module_init ; void *module_core ; unsigned int init_size ; unsigned int core_size ; unsigned int init_text_size ; unsigned int core_text_size ; struct mod_tree_node mtn_core ; struct mod_tree_node mtn_init ; unsigned int init_ro_size ; unsigned int core_ro_size ; struct mod_arch_specific arch ; unsigned int taints ; unsigned int num_bugs ; struct list_head bug_list ; struct bug_entry *bug_table ; Elf64_Sym *symtab ; Elf64_Sym *core_symtab ; unsigned int num_symtab ; unsigned int core_num_syms ; char *strtab ; char *core_strtab ; struct module_sect_attrs *sect_attrs ; struct module_notes_attrs *notes_attrs ; char *args ; void *percpu ; unsigned int percpu_size ; unsigned int num_tracepoints ; struct tracepoint * const *tracepoints_ptrs ; unsigned int num_trace_bprintk_fmt ; char const **trace_bprintk_fmt_start ; struct trace_event_call **trace_events ; unsigned int num_trace_events ; struct trace_enum_map **trace_enums ; unsigned int num_trace_enums ; unsigned int num_ftrace_callsites ; unsigned long *ftrace_callsites ; bool klp_alive ; struct list_head source_list ; struct list_head target_list ; void (*exit)(void) ; atomic_t refcnt ; ctor_fn_t (**ctors)(void) ; unsigned int num_ctors ; }; struct kernel_cap_struct { __u32 cap[2U] ; }; typedef struct kernel_cap_struct kernel_cap_t; struct plist_node { int prio ; struct list_head prio_list ; struct list_head node_list ; }; typedef unsigned long cputime_t; struct sem_undo_list; struct sysv_sem { struct sem_undo_list *undo_list ; }; struct user_struct; struct sysv_shm { struct list_head shm_clist ; }; struct __anonstruct_sigset_t_180 { unsigned long sig[1U] ; }; typedef struct __anonstruct_sigset_t_180 sigset_t; struct siginfo; typedef void __signalfn_t(int ); typedef __signalfn_t *__sighandler_t; typedef void __restorefn_t(void); typedef __restorefn_t *__sigrestore_t; union sigval { int sival_int ; void *sival_ptr ; }; typedef union sigval sigval_t; struct __anonstruct__kill_182 { __kernel_pid_t _pid ; __kernel_uid32_t _uid ; }; struct __anonstruct__timer_183 { __kernel_timer_t _tid ; int _overrun ; char _pad[0U] ; sigval_t _sigval ; int _sys_private ; }; struct __anonstruct__rt_184 { __kernel_pid_t _pid ; __kernel_uid32_t _uid ; sigval_t _sigval ; }; struct __anonstruct__sigchld_185 { __kernel_pid_t _pid ; __kernel_uid32_t _uid ; int _status ; __kernel_clock_t _utime ; __kernel_clock_t _stime ; }; struct __anonstruct__addr_bnd_187 { void *_lower ; void *_upper ; }; struct __anonstruct__sigfault_186 { void *_addr ; short _addr_lsb ; struct __anonstruct__addr_bnd_187 _addr_bnd ; }; struct __anonstruct__sigpoll_188 { long _band ; int _fd ; }; struct __anonstruct__sigsys_189 { void *_call_addr ; int _syscall ; unsigned int _arch ; }; union __anonunion__sifields_181 { int _pad[28U] ; struct __anonstruct__kill_182 _kill ; struct __anonstruct__timer_183 _timer ; struct __anonstruct__rt_184 _rt ; struct __anonstruct__sigchld_185 _sigchld ; struct __anonstruct__sigfault_186 _sigfault ; struct __anonstruct__sigpoll_188 _sigpoll ; struct __anonstruct__sigsys_189 _sigsys ; }; struct siginfo { int si_signo ; int si_errno ; int si_code ; union __anonunion__sifields_181 _sifields ; }; typedef struct siginfo siginfo_t; struct sigpending { struct list_head list ; sigset_t signal ; }; struct sigaction { __sighandler_t sa_handler ; unsigned long sa_flags ; __sigrestore_t sa_restorer ; sigset_t sa_mask ; }; struct k_sigaction { struct sigaction sa ; }; enum pid_type { PIDTYPE_PID = 0, PIDTYPE_PGID = 1, PIDTYPE_SID = 2, PIDTYPE_MAX = 3 } ; struct pid_namespace; struct upid { int nr ; struct pid_namespace *ns ; struct hlist_node pid_chain ; }; struct pid { atomic_t count ; unsigned int level ; struct hlist_head tasks[3U] ; struct callback_head rcu ; struct upid numbers[1U] ; }; struct pid_link { struct hlist_node node ; struct pid *pid ; }; struct percpu_counter { raw_spinlock_t lock ; s64 count ; struct list_head list ; s32 *counters ; }; struct seccomp_filter; struct seccomp { int mode ; struct seccomp_filter *filter ; }; struct rt_mutex_waiter; struct rlimit { __kernel_ulong_t rlim_cur ; __kernel_ulong_t rlim_max ; }; struct timerqueue_node { struct rb_node node ; ktime_t expires ; }; struct timerqueue_head { struct rb_root head ; struct timerqueue_node *next ; }; struct hrtimer_clock_base; struct hrtimer_cpu_base; enum hrtimer_restart { HRTIMER_NORESTART = 0, HRTIMER_RESTART = 1 } ; struct hrtimer { struct timerqueue_node node ; ktime_t _softexpires ; enum hrtimer_restart (*function)(struct hrtimer * ) ; struct hrtimer_clock_base *base ; unsigned long state ; int start_pid ; void *start_site ; char start_comm[16U] ; }; struct hrtimer_clock_base { struct hrtimer_cpu_base *cpu_base ; int index ; clockid_t clockid ; struct timerqueue_head active ; ktime_t (*get_time)(void) ; ktime_t offset ; }; struct hrtimer_cpu_base { raw_spinlock_t lock ; seqcount_t seq ; struct hrtimer *running ; unsigned int cpu ; unsigned int active_bases ; unsigned int clock_was_set_seq ; bool migration_enabled ; bool nohz_active ; unsigned char in_hrtirq : 1 ; unsigned char hres_active : 1 ; unsigned char hang_detected : 1 ; ktime_t expires_next ; struct hrtimer *next_timer ; unsigned int nr_events ; unsigned int nr_retries ; unsigned int nr_hangs ; unsigned int max_hang_time ; struct hrtimer_clock_base clock_base[4U] ; }; struct task_io_accounting { u64 rchar ; u64 wchar ; u64 syscr ; u64 syscw ; u64 read_bytes ; u64 write_bytes ; u64 cancelled_write_bytes ; }; struct latency_record { unsigned long backtrace[12U] ; unsigned int count ; unsigned long time ; unsigned long max ; }; struct assoc_array_ptr; struct assoc_array { struct assoc_array_ptr *root ; unsigned long nr_leaves_on_tree ; }; typedef int32_t key_serial_t; typedef uint32_t key_perm_t; struct key; struct signal_struct; struct key_type; struct keyring_index_key { struct key_type *type ; char const *description ; size_t desc_len ; }; union __anonunion____missing_field_name_196 { struct list_head graveyard_link ; struct rb_node serial_node ; }; struct key_user; union __anonunion____missing_field_name_197 { time_t expiry ; time_t revoked_at ; }; struct __anonstruct____missing_field_name_199 { struct key_type *type ; char *description ; }; union __anonunion____missing_field_name_198 { struct keyring_index_key index_key ; struct __anonstruct____missing_field_name_199 __annonCompField52 ; }; union __anonunion_type_data_200 { struct list_head link ; unsigned long x[2U] ; void *p[2U] ; int reject_error ; }; union __anonunion_payload_202 { unsigned long value ; void *rcudata ; void *data ; void *data2[2U] ; }; union __anonunion____missing_field_name_201 { union __anonunion_payload_202 payload ; struct assoc_array keys ; }; struct key { atomic_t usage ; key_serial_t serial ; union __anonunion____missing_field_name_196 __annonCompField50 ; struct rw_semaphore sem ; struct key_user *user ; void *security ; union __anonunion____missing_field_name_197 __annonCompField51 ; time_t last_used_at ; kuid_t uid ; kgid_t gid ; key_perm_t perm ; unsigned short quotalen ; unsigned short datalen ; unsigned long flags ; union __anonunion____missing_field_name_198 __annonCompField53 ; union __anonunion_type_data_200 type_data ; union __anonunion____missing_field_name_201 __annonCompField54 ; }; struct audit_context; struct group_info { atomic_t usage ; int ngroups ; int nblocks ; kgid_t small_block[32U] ; kgid_t *blocks[0U] ; }; struct cred { atomic_t usage ; atomic_t subscribers ; void *put_addr ; unsigned int magic ; kuid_t uid ; kgid_t gid ; kuid_t suid ; kgid_t sgid ; kuid_t euid ; kgid_t egid ; kuid_t fsuid ; kgid_t fsgid ; unsigned int securebits ; kernel_cap_t cap_inheritable ; kernel_cap_t cap_permitted ; kernel_cap_t cap_effective ; kernel_cap_t cap_bset ; unsigned char jit_keyring ; struct key *session_keyring ; struct key *process_keyring ; struct key *thread_keyring ; struct key *request_key_auth ; void *security ; struct user_struct *user ; struct user_namespace *user_ns ; struct group_info *group_info ; struct callback_head rcu ; }; struct percpu_ref; typedef void percpu_ref_func_t(struct percpu_ref * ); struct percpu_ref { atomic_long_t count ; unsigned long percpu_count_ptr ; percpu_ref_func_t *release ; percpu_ref_func_t *confirm_switch ; bool force_atomic ; struct callback_head rcu ; }; struct cgroup; struct cgroup_root; struct cgroup_subsys; struct cgroup_taskset; struct cgroup_subsys_state { struct cgroup *cgroup ; struct cgroup_subsys *ss ; struct percpu_ref refcnt ; struct cgroup_subsys_state *parent ; struct list_head sibling ; struct list_head children ; int id ; unsigned int flags ; u64 serial_nr ; struct callback_head callback_head ; struct work_struct destroy_work ; }; struct css_set { atomic_t refcount ; struct hlist_node hlist ; struct list_head tasks ; struct list_head mg_tasks ; struct list_head cgrp_links ; struct cgroup *dfl_cgrp ; struct cgroup_subsys_state *subsys[12U] ; struct list_head mg_preload_node ; struct list_head mg_node ; struct cgroup *mg_src_cgrp ; struct css_set *mg_dst_cset ; struct list_head e_cset_node[12U] ; struct callback_head callback_head ; }; struct cgroup { struct cgroup_subsys_state self ; unsigned long flags ; int id ; int populated_cnt ; struct kernfs_node *kn ; struct kernfs_node *procs_kn ; struct kernfs_node *populated_kn ; unsigned int subtree_control ; unsigned int child_subsys_mask ; struct cgroup_subsys_state *subsys[12U] ; struct cgroup_root *root ; struct list_head cset_links ; struct list_head e_csets[12U] ; struct list_head pidlists ; struct mutex pidlist_mutex ; wait_queue_head_t offline_waitq ; struct work_struct release_agent_work ; }; struct cgroup_root { struct kernfs_root *kf_root ; unsigned int subsys_mask ; int hierarchy_id ; struct cgroup cgrp ; atomic_t nr_cgrps ; struct list_head root_list ; unsigned int flags ; struct idr cgroup_idr ; char release_agent_path[4096U] ; char name[64U] ; }; struct cftype { char name[64U] ; int private ; umode_t mode ; size_t max_write_len ; unsigned int flags ; struct cgroup_subsys *ss ; struct list_head node ; struct kernfs_ops *kf_ops ; u64 (*read_u64)(struct cgroup_subsys_state * , struct cftype * ) ; s64 (*read_s64)(struct cgroup_subsys_state * , struct cftype * ) ; int (*seq_show)(struct seq_file * , void * ) ; void *(*seq_start)(struct seq_file * , loff_t * ) ; void *(*seq_next)(struct seq_file * , void * , loff_t * ) ; void (*seq_stop)(struct seq_file * , void * ) ; int (*write_u64)(struct cgroup_subsys_state * , struct cftype * , u64 ) ; int (*write_s64)(struct cgroup_subsys_state * , struct cftype * , s64 ) ; ssize_t (*write)(struct kernfs_open_file * , char * , size_t , loff_t ) ; struct lock_class_key lockdep_key ; }; struct cgroup_subsys { struct cgroup_subsys_state *(*css_alloc)(struct cgroup_subsys_state * ) ; int (*css_online)(struct cgroup_subsys_state * ) ; void (*css_offline)(struct cgroup_subsys_state * ) ; void (*css_released)(struct cgroup_subsys_state * ) ; void (*css_free)(struct cgroup_subsys_state * ) ; void (*css_reset)(struct cgroup_subsys_state * ) ; void (*css_e_css_changed)(struct cgroup_subsys_state * ) ; int (*can_attach)(struct cgroup_subsys_state * , struct cgroup_taskset * ) ; void (*cancel_attach)(struct cgroup_subsys_state * , struct cgroup_taskset * ) ; void (*attach)(struct cgroup_subsys_state * , struct cgroup_taskset * ) ; void (*fork)(struct task_struct * ) ; void (*exit)(struct cgroup_subsys_state * , struct cgroup_subsys_state * , struct task_struct * ) ; void (*bind)(struct cgroup_subsys_state * ) ; int disabled ; int early_init ; bool broken_hierarchy ; bool warned_broken_hierarchy ; int id ; char const *name ; struct cgroup_root *root ; struct idr css_idr ; struct list_head cfts ; struct cftype *dfl_cftypes ; struct cftype *legacy_cftypes ; unsigned int depends_on ; }; struct futex_pi_state; struct robust_list_head; struct bio_list; struct fs_struct; struct perf_event_context; struct blk_plug; struct nameidata; struct cfs_rq; struct task_group; struct sighand_struct { atomic_t count ; struct k_sigaction action[64U] ; spinlock_t siglock ; wait_queue_head_t signalfd_wqh ; }; struct pacct_struct { int ac_flag ; long ac_exitcode ; unsigned long ac_mem ; cputime_t ac_utime ; cputime_t ac_stime ; unsigned long ac_minflt ; unsigned long ac_majflt ; }; struct cpu_itimer { cputime_t expires ; cputime_t incr ; u32 error ; u32 incr_error ; }; struct cputime { cputime_t utime ; cputime_t stime ; }; struct task_cputime { cputime_t utime ; cputime_t stime ; unsigned long long sum_exec_runtime ; }; struct task_cputime_atomic { atomic64_t utime ; atomic64_t stime ; atomic64_t sum_exec_runtime ; }; struct thread_group_cputimer { struct task_cputime_atomic cputime_atomic ; int running ; }; struct autogroup; struct tty_struct; struct taskstats; struct tty_audit_buf; struct signal_struct { atomic_t sigcnt ; atomic_t live ; int nr_threads ; struct list_head thread_head ; wait_queue_head_t wait_chldexit ; struct task_struct *curr_target ; struct sigpending shared_pending ; int group_exit_code ; int notify_count ; struct task_struct *group_exit_task ; int group_stop_count ; unsigned int flags ; unsigned char is_child_subreaper : 1 ; unsigned char has_child_subreaper : 1 ; int posix_timer_id ; struct list_head posix_timers ; struct hrtimer real_timer ; struct pid *leader_pid ; ktime_t it_real_incr ; struct cpu_itimer it[2U] ; struct thread_group_cputimer cputimer ; struct task_cputime cputime_expires ; struct list_head cpu_timers[3U] ; struct pid *tty_old_pgrp ; int leader ; struct tty_struct *tty ; struct autogroup *autogroup ; seqlock_t stats_lock ; cputime_t utime ; cputime_t stime ; cputime_t cutime ; cputime_t cstime ; cputime_t gtime ; cputime_t cgtime ; struct cputime prev_cputime ; unsigned long nvcsw ; unsigned long nivcsw ; unsigned long cnvcsw ; unsigned long cnivcsw ; unsigned long min_flt ; unsigned long maj_flt ; unsigned long cmin_flt ; unsigned long cmaj_flt ; unsigned long inblock ; unsigned long oublock ; unsigned long cinblock ; unsigned long coublock ; unsigned long maxrss ; unsigned long cmaxrss ; struct task_io_accounting ioac ; unsigned long long sum_sched_runtime ; struct rlimit rlim[16U] ; struct pacct_struct pacct ; struct taskstats *stats ; unsigned int audit_tty ; unsigned int audit_tty_log_passwd ; struct tty_audit_buf *tty_audit_buf ; oom_flags_t oom_flags ; short oom_score_adj ; short oom_score_adj_min ; struct mutex cred_guard_mutex ; }; struct user_struct { atomic_t __count ; atomic_t processes ; atomic_t sigpending ; atomic_t inotify_watches ; atomic_t inotify_devs ; atomic_t fanotify_listeners ; atomic_long_t epoll_watches ; unsigned long mq_bytes ; unsigned long locked_shm ; struct key *uid_keyring ; struct key *session_keyring ; struct hlist_node uidhash_node ; kuid_t uid ; atomic_long_t locked_vm ; }; struct backing_dev_info; struct reclaim_state; struct sched_info { unsigned long pcount ; unsigned long long run_delay ; unsigned long long last_arrival ; unsigned long long last_queued ; }; struct task_delay_info { spinlock_t lock ; unsigned int flags ; u64 blkio_start ; u64 blkio_delay ; u64 swapin_delay ; u32 blkio_count ; u32 swapin_count ; u64 freepages_start ; u64 freepages_delay ; u32 freepages_count ; }; struct wake_q_node { struct wake_q_node *next ; }; struct io_context; struct pipe_inode_info; struct load_weight { unsigned long weight ; u32 inv_weight ; }; struct sched_avg { u64 last_runnable_update ; s64 decay_count ; unsigned long load_avg_contrib ; unsigned long utilization_avg_contrib ; u32 runnable_avg_sum ; u32 avg_period ; u32 running_avg_sum ; }; struct sched_statistics { u64 wait_start ; u64 wait_max ; u64 wait_count ; u64 wait_sum ; u64 iowait_count ; u64 iowait_sum ; u64 sleep_start ; u64 sleep_max ; s64 sum_sleep_runtime ; u64 block_start ; u64 block_max ; u64 exec_max ; u64 slice_max ; u64 nr_migrations_cold ; u64 nr_failed_migrations_affine ; u64 nr_failed_migrations_running ; u64 nr_failed_migrations_hot ; u64 nr_forced_migrations ; u64 nr_wakeups ; u64 nr_wakeups_sync ; u64 nr_wakeups_migrate ; u64 nr_wakeups_local ; u64 nr_wakeups_remote ; u64 nr_wakeups_affine ; u64 nr_wakeups_affine_attempts ; u64 nr_wakeups_passive ; u64 nr_wakeups_idle ; }; struct sched_entity { struct load_weight load ; struct rb_node run_node ; struct list_head group_node ; unsigned int on_rq ; u64 exec_start ; u64 sum_exec_runtime ; u64 vruntime ; u64 prev_sum_exec_runtime ; u64 nr_migrations ; struct sched_statistics statistics ; int depth ; struct sched_entity *parent ; struct cfs_rq *cfs_rq ; struct cfs_rq *my_q ; struct sched_avg avg ; }; struct rt_rq; struct sched_rt_entity { struct list_head run_list ; unsigned long timeout ; unsigned long watchdog_stamp ; unsigned int time_slice ; struct sched_rt_entity *back ; struct sched_rt_entity *parent ; struct rt_rq *rt_rq ; struct rt_rq *my_q ; }; struct sched_dl_entity { struct rb_node rb_node ; u64 dl_runtime ; u64 dl_deadline ; u64 dl_period ; u64 dl_bw ; s64 runtime ; u64 deadline ; unsigned int flags ; int dl_throttled ; int dl_new ; int dl_boosted ; int dl_yielded ; struct hrtimer dl_timer ; }; struct memcg_oom_info { struct mem_cgroup *memcg ; gfp_t gfp_mask ; int order ; unsigned char may_oom : 1 ; }; struct sched_class; struct files_struct; struct compat_robust_list_head; struct numa_group; struct ftrace_ret_stack; struct task_struct { long volatile state ; void *stack ; atomic_t usage ; unsigned int flags ; unsigned int ptrace ; struct llist_node wake_entry ; int on_cpu ; struct task_struct *last_wakee ; unsigned long wakee_flips ; unsigned long wakee_flip_decay_ts ; int wake_cpu ; int on_rq ; int prio ; int static_prio ; int normal_prio ; unsigned int rt_priority ; struct sched_class const *sched_class ; struct sched_entity se ; struct sched_rt_entity rt ; struct task_group *sched_task_group ; struct sched_dl_entity dl ; struct hlist_head preempt_notifiers ; unsigned int btrace_seq ; unsigned int policy ; int nr_cpus_allowed ; cpumask_t cpus_allowed ; unsigned long rcu_tasks_nvcsw ; bool rcu_tasks_holdout ; struct list_head rcu_tasks_holdout_list ; int rcu_tasks_idle_cpu ; struct sched_info sched_info ; struct list_head tasks ; struct plist_node pushable_tasks ; struct rb_node pushable_dl_tasks ; struct mm_struct *mm ; struct mm_struct *active_mm ; u32 vmacache_seqnum ; struct vm_area_struct *vmacache[4U] ; struct task_rss_stat rss_stat ; int exit_state ; int exit_code ; int exit_signal ; int pdeath_signal ; unsigned long jobctl ; unsigned int personality ; unsigned char in_execve : 1 ; unsigned char in_iowait : 1 ; unsigned char sched_reset_on_fork : 1 ; unsigned char sched_contributes_to_load : 1 ; unsigned char sched_migrated : 1 ; unsigned char memcg_kmem_skip_account : 1 ; unsigned char brk_randomized : 1 ; unsigned long atomic_flags ; struct restart_block restart_block ; pid_t pid ; pid_t tgid ; struct task_struct *real_parent ; struct task_struct *parent ; struct list_head children ; struct list_head sibling ; struct task_struct *group_leader ; struct list_head ptraced ; struct list_head ptrace_entry ; struct pid_link pids[3U] ; struct list_head thread_group ; struct list_head thread_node ; struct completion *vfork_done ; int *set_child_tid ; int *clear_child_tid ; cputime_t utime ; cputime_t stime ; cputime_t utimescaled ; cputime_t stimescaled ; cputime_t gtime ; struct cputime prev_cputime ; unsigned long nvcsw ; unsigned long nivcsw ; u64 start_time ; u64 real_start_time ; unsigned long min_flt ; unsigned long maj_flt ; struct task_cputime cputime_expires ; struct list_head cpu_timers[3U] ; struct cred const *real_cred ; struct cred const *cred ; char comm[16U] ; struct nameidata *nameidata ; struct sysv_sem sysvsem ; struct sysv_shm sysvshm ; unsigned long last_switch_count ; struct thread_struct thread ; struct fs_struct *fs ; struct files_struct *files ; struct nsproxy *nsproxy ; struct signal_struct *signal ; struct sighand_struct *sighand ; sigset_t blocked ; sigset_t real_blocked ; sigset_t saved_sigmask ; struct sigpending pending ; unsigned long sas_ss_sp ; size_t sas_ss_size ; int (*notifier)(void * ) ; void *notifier_data ; sigset_t *notifier_mask ; struct callback_head *task_works ; struct audit_context *audit_context ; kuid_t loginuid ; unsigned int sessionid ; struct seccomp seccomp ; u32 parent_exec_id ; u32 self_exec_id ; spinlock_t alloc_lock ; raw_spinlock_t pi_lock ; struct wake_q_node wake_q ; struct rb_root pi_waiters ; struct rb_node *pi_waiters_leftmost ; struct rt_mutex_waiter *pi_blocked_on ; struct mutex_waiter *blocked_on ; unsigned int irq_events ; unsigned long hardirq_enable_ip ; unsigned long hardirq_disable_ip ; unsigned int hardirq_enable_event ; unsigned int hardirq_disable_event ; int hardirqs_enabled ; int hardirq_context ; unsigned long softirq_disable_ip ; unsigned long softirq_enable_ip ; unsigned int softirq_disable_event ; unsigned int softirq_enable_event ; int softirqs_enabled ; int softirq_context ; u64 curr_chain_key ; int lockdep_depth ; unsigned int lockdep_recursion ; struct held_lock held_locks[48U] ; gfp_t lockdep_reclaim_gfp ; void *journal_info ; struct bio_list *bio_list ; struct blk_plug *plug ; struct reclaim_state *reclaim_state ; struct backing_dev_info *backing_dev_info ; struct io_context *io_context ; unsigned long ptrace_message ; siginfo_t *last_siginfo ; struct task_io_accounting ioac ; u64 acct_rss_mem1 ; u64 acct_vm_mem1 ; cputime_t acct_timexpd ; nodemask_t mems_allowed ; seqcount_t mems_allowed_seq ; int cpuset_mem_spread_rotor ; int cpuset_slab_spread_rotor ; struct css_set *cgroups ; struct list_head cg_list ; struct robust_list_head *robust_list ; struct compat_robust_list_head *compat_robust_list ; struct list_head pi_state_list ; struct futex_pi_state *pi_state_cache ; struct perf_event_context *perf_event_ctxp[2U] ; struct mutex perf_event_mutex ; struct list_head perf_event_list ; struct mempolicy *mempolicy ; short il_next ; short pref_node_fork ; int numa_scan_seq ; unsigned int numa_scan_period ; unsigned int numa_scan_period_max ; int numa_preferred_nid ; unsigned long numa_migrate_retry ; u64 node_stamp ; u64 last_task_numa_placement ; u64 last_sum_exec_runtime ; struct callback_head numa_work ; struct list_head numa_entry ; struct numa_group *numa_group ; unsigned long *numa_faults ; unsigned long total_numa_faults ; unsigned long numa_faults_locality[3U] ; unsigned long numa_pages_migrated ; struct callback_head rcu ; struct pipe_inode_info *splice_pipe ; struct page_frag task_frag ; struct task_delay_info *delays ; int make_it_fail ; int nr_dirtied ; int nr_dirtied_pause ; unsigned long dirty_paused_when ; int latency_record_count ; struct latency_record latency_record[32U] ; unsigned long timer_slack_ns ; unsigned long default_timer_slack_ns ; unsigned int kasan_depth ; int curr_ret_stack ; struct ftrace_ret_stack *ret_stack ; unsigned long long ftrace_timestamp ; atomic_t trace_overrun ; atomic_t tracing_graph_pause ; unsigned long trace ; unsigned long trace_recursion ; struct memcg_oom_info memcg_oom ; struct uprobe_task *utask ; unsigned int sequential_io ; unsigned int sequential_io_avg ; unsigned long task_state_change ; int pagefault_disabled ; }; struct dm_exception; struct dm_exception_store; struct dm_target; struct device_type; struct class; struct klist_node; struct klist_node { void *n_klist ; struct list_head n_node ; struct kref n_ref ; }; struct path; struct seq_file { char *buf ; size_t size ; size_t from ; size_t count ; size_t pad_until ; loff_t index ; loff_t read_pos ; u64 version ; struct mutex lock ; struct seq_operations const *op ; int poll_event ; struct user_namespace *user_ns ; void *private ; }; struct seq_operations { void *(*start)(struct seq_file * , loff_t * ) ; void (*stop)(struct seq_file * , void * ) ; void *(*next)(struct seq_file * , void * , loff_t * ) ; int (*show)(struct seq_file * , void * ) ; }; struct pinctrl; struct pinctrl_state; struct dev_pin_info { struct pinctrl *p ; struct pinctrl_state *default_state ; struct pinctrl_state *sleep_state ; struct pinctrl_state *idle_state ; }; struct dma_map_ops; struct dev_archdata { struct dma_map_ops *dma_ops ; void *iommu ; }; struct device_private; struct device_driver; struct driver_private; struct subsys_private; struct bus_type; struct device_node; struct fwnode_handle; struct iommu_ops; struct iommu_group; struct device_attribute; struct bus_type { char const *name ; char const *dev_name ; struct device *dev_root ; struct device_attribute *dev_attrs ; struct attribute_group const **bus_groups ; struct attribute_group const **dev_groups ; struct attribute_group const **drv_groups ; int (*match)(struct device * , struct device_driver * ) ; int (*uevent)(struct device * , struct kobj_uevent_env * ) ; int (*probe)(struct device * ) ; int (*remove)(struct device * ) ; void (*shutdown)(struct device * ) ; int (*online)(struct device * ) ; int (*offline)(struct device * ) ; int (*suspend)(struct device * , pm_message_t ) ; int (*resume)(struct device * ) ; struct dev_pm_ops const *pm ; struct iommu_ops const *iommu_ops ; struct subsys_private *p ; struct lock_class_key lock_key ; }; enum probe_type { PROBE_DEFAULT_STRATEGY = 0, PROBE_PREFER_ASYNCHRONOUS = 1, PROBE_FORCE_SYNCHRONOUS = 2 } ; struct of_device_id; struct acpi_device_id; struct device_driver { char const *name ; struct bus_type *bus ; struct module *owner ; char const *mod_name ; bool suppress_bind_attrs ; enum probe_type probe_type ; struct of_device_id const *of_match_table ; struct acpi_device_id const *acpi_match_table ; int (*probe)(struct device * ) ; int (*remove)(struct device * ) ; void (*shutdown)(struct device * ) ; int (*suspend)(struct device * , pm_message_t ) ; int (*resume)(struct device * ) ; struct attribute_group const **groups ; struct dev_pm_ops const *pm ; struct driver_private *p ; }; struct class_attribute; struct class { char const *name ; struct module *owner ; struct class_attribute *class_attrs ; struct attribute_group const **dev_groups ; struct kobject *dev_kobj ; int (*dev_uevent)(struct device * , struct kobj_uevent_env * ) ; char *(*devnode)(struct device * , umode_t * ) ; void (*class_release)(struct class * ) ; void (*dev_release)(struct device * ) ; int (*suspend)(struct device * , pm_message_t ) ; int (*resume)(struct device * ) ; struct kobj_ns_type_operations const *ns_type ; void const *(*namespace)(struct device * ) ; struct dev_pm_ops const *pm ; struct subsys_private *p ; }; struct class_attribute { struct attribute attr ; ssize_t (*show)(struct class * , struct class_attribute * , char * ) ; ssize_t (*store)(struct class * , struct class_attribute * , char const * , size_t ) ; }; struct device_type { char const *name ; struct attribute_group const **groups ; int (*uevent)(struct device * , struct kobj_uevent_env * ) ; char *(*devnode)(struct device * , umode_t * , kuid_t * , kgid_t * ) ; void (*release)(struct device * ) ; struct dev_pm_ops const *pm ; }; struct device_attribute { struct attribute attr ; ssize_t (*show)(struct device * , struct device_attribute * , char * ) ; ssize_t (*store)(struct device * , struct device_attribute * , char const * , size_t ) ; }; struct device_dma_parameters { unsigned int max_segment_size ; unsigned long segment_boundary_mask ; }; struct dma_coherent_mem; struct cma; struct device { struct device *parent ; struct device_private *p ; struct kobject kobj ; char const *init_name ; struct device_type const *type ; struct mutex mutex ; struct bus_type *bus ; struct device_driver *driver ; void *platform_data ; void *driver_data ; struct dev_pm_info power ; struct dev_pm_domain *pm_domain ; struct dev_pin_info *pins ; int numa_node ; u64 *dma_mask ; u64 coherent_dma_mask ; unsigned long dma_pfn_offset ; struct device_dma_parameters *dma_parms ; struct list_head dma_pools ; struct dma_coherent_mem *dma_mem ; struct cma *cma_area ; struct dev_archdata archdata ; struct device_node *of_node ; struct fwnode_handle *fwnode ; dev_t devt ; u32 id ; spinlock_t devres_lock ; struct list_head devres_head ; struct klist_node knode_class ; struct class *class ; struct attribute_group const **groups ; void (*release)(struct device * ) ; struct iommu_group *iommu_group ; bool offline_disabled ; bool offline ; }; struct wakeup_source { char const *name ; struct list_head entry ; spinlock_t lock ; struct wake_irq *wakeirq ; struct timer_list timer ; unsigned long timer_expires ; ktime_t total_time ; ktime_t max_time ; ktime_t last_time ; ktime_t start_prevent_time ; ktime_t prevent_sleep_time ; unsigned long event_count ; unsigned long active_count ; unsigned long relax_count ; unsigned long expire_count ; unsigned long wakeup_count ; bool active ; bool autosleep_enabled ; }; struct hlist_bl_node; struct hlist_bl_head { struct hlist_bl_node *first ; }; struct hlist_bl_node { struct hlist_bl_node *next ; struct hlist_bl_node **pprev ; }; struct __anonstruct____missing_field_name_220 { spinlock_t lock ; int count ; }; union __anonunion____missing_field_name_219 { struct __anonstruct____missing_field_name_220 __annonCompField58 ; }; struct lockref { union __anonunion____missing_field_name_219 __annonCompField59 ; }; struct vfsmount; struct __anonstruct____missing_field_name_222 { u32 hash ; u32 len ; }; union __anonunion____missing_field_name_221 { struct __anonstruct____missing_field_name_222 __annonCompField60 ; u64 hash_len ; }; struct qstr { union __anonunion____missing_field_name_221 __annonCompField61 ; unsigned char const *name ; }; struct dentry_operations; union __anonunion_d_u_223 { struct hlist_node d_alias ; struct callback_head d_rcu ; }; struct dentry { unsigned int d_flags ; seqcount_t d_seq ; struct hlist_bl_node d_hash ; struct dentry *d_parent ; struct qstr d_name ; struct inode *d_inode ; unsigned char d_iname[32U] ; struct lockref d_lockref ; struct dentry_operations const *d_op ; struct super_block *d_sb ; unsigned long d_time ; void *d_fsdata ; struct list_head d_lru ; struct list_head d_child ; struct list_head d_subdirs ; union __anonunion_d_u_223 d_u ; }; struct dentry_operations { int (*d_revalidate)(struct dentry * , unsigned int ) ; int (*d_weak_revalidate)(struct dentry * , unsigned int ) ; int (*d_hash)(struct dentry const * , struct qstr * ) ; int (*d_compare)(struct dentry const * , struct dentry const * , unsigned int , char const * , struct qstr const * ) ; int (*d_delete)(struct dentry const * ) ; void (*d_release)(struct dentry * ) ; void (*d_prune)(struct dentry * ) ; void (*d_iput)(struct dentry * , struct inode * ) ; char *(*d_dname)(struct dentry * , char * , int ) ; struct vfsmount *(*d_automount)(struct path * ) ; int (*d_manage)(struct dentry * , bool ) ; struct inode *(*d_select_inode)(struct dentry * , unsigned int ) ; }; struct path { struct vfsmount *mnt ; struct dentry *dentry ; }; struct shrink_control { gfp_t gfp_mask ; unsigned long nr_to_scan ; int nid ; struct mem_cgroup *memcg ; }; struct shrinker { unsigned long (*count_objects)(struct shrinker * , struct shrink_control * ) ; unsigned long (*scan_objects)(struct shrinker * , struct shrink_control * ) ; int seeks ; long batch ; unsigned long flags ; struct list_head list ; atomic_long_t *nr_deferred ; }; struct list_lru_one { struct list_head list ; long nr_items ; }; struct list_lru_memcg { struct list_lru_one *lru[0U] ; }; struct list_lru_node { spinlock_t lock ; struct list_lru_one lru ; struct list_lru_memcg *memcg_lrus ; }; struct list_lru { struct list_lru_node *node ; struct list_head list ; }; struct __anonstruct____missing_field_name_227 { struct radix_tree_node *parent ; void *private_data ; }; union __anonunion____missing_field_name_226 { struct __anonstruct____missing_field_name_227 __annonCompField62 ; struct callback_head callback_head ; }; struct radix_tree_node { unsigned int path ; unsigned int count ; union __anonunion____missing_field_name_226 __annonCompField63 ; struct list_head private_list ; void *slots[64U] ; unsigned long tags[3U][1U] ; }; struct radix_tree_root { unsigned int height ; gfp_t gfp_mask ; struct radix_tree_node *rnode ; }; struct fiemap_extent { __u64 fe_logical ; __u64 fe_physical ; __u64 fe_length ; __u64 fe_reserved64[2U] ; __u32 fe_flags ; __u32 fe_reserved[3U] ; }; enum migrate_mode { MIGRATE_ASYNC = 0, MIGRATE_SYNC_LIGHT = 1, MIGRATE_SYNC = 2 } ; struct bio_set; struct bio; struct bio_integrity_payload; struct block_device; typedef void bio_end_io_t(struct bio * , int ); struct bio_vec { struct page *bv_page ; unsigned int bv_len ; unsigned int bv_offset ; }; struct bvec_iter { sector_t bi_sector ; unsigned int bi_size ; unsigned int bi_idx ; unsigned int bi_bvec_done ; }; union __anonunion____missing_field_name_230 { struct bio_integrity_payload *bi_integrity ; }; struct bio { struct bio *bi_next ; struct block_device *bi_bdev ; unsigned long bi_flags ; unsigned long bi_rw ; struct bvec_iter bi_iter ; unsigned int bi_phys_segments ; unsigned int bi_seg_front_size ; unsigned int bi_seg_back_size ; atomic_t __bi_remaining ; bio_end_io_t *bi_end_io ; void *bi_private ; struct io_context *bi_ioc ; struct cgroup_subsys_state *bi_css ; union __anonunion____missing_field_name_230 __annonCompField64 ; unsigned short bi_vcnt ; unsigned short bi_max_vecs ; atomic_t __bi_cnt ; struct bio_vec *bi_io_vec ; struct bio_set *bi_pool ; struct bio_vec bi_inline_vecs[0U] ; }; struct bdi_writeback; struct export_operations; struct hd_geometry; struct kiocb; struct poll_table_struct; struct kstatfs; struct swap_info_struct; struct iov_iter; struct vm_fault; struct iattr { unsigned int ia_valid ; umode_t ia_mode ; kuid_t ia_uid ; kgid_t ia_gid ; loff_t ia_size ; struct timespec ia_atime ; struct timespec ia_mtime ; struct timespec ia_ctime ; struct file *ia_file ; }; struct dquot; typedef __kernel_uid32_t projid_t; struct __anonstruct_kprojid_t_231 { projid_t val ; }; typedef struct __anonstruct_kprojid_t_231 kprojid_t; enum quota_type { USRQUOTA = 0, GRPQUOTA = 1, PRJQUOTA = 2 } ; typedef long long qsize_t; union __anonunion____missing_field_name_232 { kuid_t uid ; kgid_t gid ; kprojid_t projid ; }; struct kqid { union __anonunion____missing_field_name_232 __annonCompField65 ; enum quota_type type ; }; struct mem_dqblk { qsize_t dqb_bhardlimit ; qsize_t dqb_bsoftlimit ; qsize_t dqb_curspace ; qsize_t dqb_rsvspace ; qsize_t dqb_ihardlimit ; qsize_t dqb_isoftlimit ; qsize_t dqb_curinodes ; time_t dqb_btime ; time_t dqb_itime ; }; struct quota_format_type; struct mem_dqinfo { struct quota_format_type *dqi_format ; int dqi_fmt_id ; struct list_head dqi_dirty_list ; unsigned long dqi_flags ; unsigned int dqi_bgrace ; unsigned int dqi_igrace ; qsize_t dqi_max_spc_limit ; qsize_t dqi_max_ino_limit ; void *dqi_priv ; }; struct dquot { struct hlist_node dq_hash ; struct list_head dq_inuse ; struct list_head dq_free ; struct list_head dq_dirty ; struct mutex dq_lock ; atomic_t dq_count ; wait_queue_head_t dq_wait_unused ; struct super_block *dq_sb ; struct kqid dq_id ; loff_t dq_off ; unsigned long dq_flags ; struct mem_dqblk dq_dqb ; }; struct quota_format_ops { int (*check_quota_file)(struct super_block * , int ) ; int (*read_file_info)(struct super_block * , int ) ; int (*write_file_info)(struct super_block * , int ) ; int (*free_file_info)(struct super_block * , int ) ; int (*read_dqblk)(struct dquot * ) ; int (*commit_dqblk)(struct dquot * ) ; int (*release_dqblk)(struct dquot * ) ; }; struct dquot_operations { int (*write_dquot)(struct dquot * ) ; struct dquot *(*alloc_dquot)(struct super_block * , int ) ; void (*destroy_dquot)(struct dquot * ) ; int (*acquire_dquot)(struct dquot * ) ; int (*release_dquot)(struct dquot * ) ; int (*mark_dirty)(struct dquot * ) ; int (*write_info)(struct super_block * , int ) ; qsize_t *(*get_reserved_space)(struct inode * ) ; int (*get_projid)(struct inode * , kprojid_t * ) ; }; struct qc_dqblk { int d_fieldmask ; u64 d_spc_hardlimit ; u64 d_spc_softlimit ; u64 d_ino_hardlimit ; u64 d_ino_softlimit ; u64 d_space ; u64 d_ino_count ; s64 d_ino_timer ; s64 d_spc_timer ; int d_ino_warns ; int d_spc_warns ; u64 d_rt_spc_hardlimit ; u64 d_rt_spc_softlimit ; u64 d_rt_space ; s64 d_rt_spc_timer ; int d_rt_spc_warns ; }; struct qc_type_state { unsigned int flags ; unsigned int spc_timelimit ; unsigned int ino_timelimit ; unsigned int rt_spc_timelimit ; unsigned int spc_warnlimit ; unsigned int ino_warnlimit ; unsigned int rt_spc_warnlimit ; unsigned long long ino ; blkcnt_t blocks ; blkcnt_t nextents ; }; struct qc_state { unsigned int s_incoredqs ; struct qc_type_state s_state[3U] ; }; struct qc_info { int i_fieldmask ; unsigned int i_flags ; unsigned int i_spc_timelimit ; unsigned int i_ino_timelimit ; unsigned int i_rt_spc_timelimit ; unsigned int i_spc_warnlimit ; unsigned int i_ino_warnlimit ; unsigned int i_rt_spc_warnlimit ; }; struct quotactl_ops { int (*quota_on)(struct super_block * , int , int , struct path * ) ; int (*quota_off)(struct super_block * , int ) ; int (*quota_enable)(struct super_block * , unsigned int ) ; int (*quota_disable)(struct super_block * , unsigned int ) ; int (*quota_sync)(struct super_block * , int ) ; int (*set_info)(struct super_block * , int , struct qc_info * ) ; int (*get_dqblk)(struct super_block * , struct kqid , struct qc_dqblk * ) ; int (*set_dqblk)(struct super_block * , struct kqid , struct qc_dqblk * ) ; int (*get_state)(struct super_block * , struct qc_state * ) ; int (*rm_xquota)(struct super_block * , unsigned int ) ; }; struct quota_format_type { int qf_fmt_id ; struct quota_format_ops const *qf_ops ; struct module *qf_owner ; struct quota_format_type *qf_next ; }; struct quota_info { unsigned int flags ; struct mutex dqio_mutex ; struct mutex dqonoff_mutex ; struct inode *files[3U] ; struct mem_dqinfo info[3U] ; struct quota_format_ops const *ops[3U] ; }; struct writeback_control; struct kiocb { struct file *ki_filp ; loff_t ki_pos ; void (*ki_complete)(struct kiocb * , long , long ) ; void *private ; int ki_flags ; }; struct address_space_operations { int (*writepage)(struct page * , struct writeback_control * ) ; int (*readpage)(struct file * , struct page * ) ; int (*writepages)(struct address_space * , struct writeback_control * ) ; int (*set_page_dirty)(struct page * ) ; int (*readpages)(struct file * , struct address_space * , struct list_head * , unsigned int ) ; int (*write_begin)(struct file * , struct address_space * , loff_t , unsigned int , unsigned int , struct page ** , void ** ) ; int (*write_end)(struct file * , struct address_space * , loff_t , unsigned int , unsigned int , struct page * , void * ) ; sector_t (*bmap)(struct address_space * , sector_t ) ; void (*invalidatepage)(struct page * , unsigned int , unsigned int ) ; int (*releasepage)(struct page * , gfp_t ) ; void (*freepage)(struct page * ) ; ssize_t (*direct_IO)(struct kiocb * , struct iov_iter * , loff_t ) ; int (*migratepage)(struct address_space * , struct page * , struct page * , enum migrate_mode ) ; int (*launder_page)(struct page * ) ; int (*is_partially_uptodate)(struct page * , unsigned long , unsigned long ) ; void (*is_dirty_writeback)(struct page * , bool * , bool * ) ; int (*error_remove_page)(struct address_space * , struct page * ) ; int (*swap_activate)(struct swap_info_struct * , struct file * , sector_t * ) ; void (*swap_deactivate)(struct file * ) ; }; struct address_space { struct inode *host ; struct radix_tree_root page_tree ; spinlock_t tree_lock ; atomic_t i_mmap_writable ; struct rb_root i_mmap ; struct rw_semaphore i_mmap_rwsem ; unsigned long nrpages ; unsigned long nrshadows ; unsigned long writeback_index ; struct address_space_operations const *a_ops ; unsigned long flags ; spinlock_t private_lock ; struct list_head private_list ; void *private_data ; }; struct request_queue; struct hd_struct; struct gendisk; struct block_device { dev_t bd_dev ; int bd_openers ; struct inode *bd_inode ; struct super_block *bd_super ; struct mutex bd_mutex ; struct list_head bd_inodes ; void *bd_claiming ; void *bd_holder ; int bd_holders ; bool bd_write_holder ; struct list_head bd_holder_disks ; struct block_device *bd_contains ; unsigned int bd_block_size ; struct hd_struct *bd_part ; unsigned int bd_part_count ; int bd_invalidated ; struct gendisk *bd_disk ; struct request_queue *bd_queue ; struct list_head bd_list ; unsigned long bd_private ; int bd_fsfreeze_count ; struct mutex bd_fsfreeze_mutex ; }; struct posix_acl; struct inode_operations; union __anonunion____missing_field_name_235 { unsigned int const i_nlink ; unsigned int __i_nlink ; }; union __anonunion____missing_field_name_236 { struct hlist_head i_dentry ; struct callback_head i_rcu ; }; struct file_lock_context; struct cdev; union __anonunion____missing_field_name_237 { struct pipe_inode_info *i_pipe ; struct block_device *i_bdev ; struct cdev *i_cdev ; char *i_link ; }; struct inode { umode_t i_mode ; unsigned short i_opflags ; kuid_t i_uid ; kgid_t i_gid ; unsigned int i_flags ; struct posix_acl *i_acl ; struct posix_acl *i_default_acl ; struct inode_operations const *i_op ; struct super_block *i_sb ; struct address_space *i_mapping ; void *i_security ; unsigned long i_ino ; union __anonunion____missing_field_name_235 __annonCompField66 ; dev_t i_rdev ; loff_t i_size ; struct timespec i_atime ; struct timespec i_mtime ; struct timespec i_ctime ; spinlock_t i_lock ; unsigned short i_bytes ; unsigned int i_blkbits ; blkcnt_t i_blocks ; unsigned long i_state ; struct mutex i_mutex ; unsigned long dirtied_when ; unsigned long dirtied_time_when ; struct hlist_node i_hash ; struct list_head i_wb_list ; struct bdi_writeback *i_wb ; int i_wb_frn_winner ; u16 i_wb_frn_avg_time ; u16 i_wb_frn_history ; struct list_head i_lru ; struct list_head i_sb_list ; union __anonunion____missing_field_name_236 __annonCompField67 ; u64 i_version ; atomic_t i_count ; atomic_t i_dio_count ; atomic_t i_writecount ; atomic_t i_readcount ; struct file_operations const *i_fop ; struct file_lock_context *i_flctx ; struct address_space i_data ; struct list_head i_devices ; union __anonunion____missing_field_name_237 __annonCompField68 ; __u32 i_generation ; __u32 i_fsnotify_mask ; struct hlist_head i_fsnotify_marks ; void *i_private ; }; struct fown_struct { rwlock_t lock ; struct pid *pid ; enum pid_type pid_type ; kuid_t uid ; kuid_t euid ; int signum ; }; struct file_ra_state { unsigned long start ; unsigned int size ; unsigned int async_size ; unsigned int ra_pages ; unsigned int mmap_miss ; loff_t prev_pos ; }; union __anonunion_f_u_238 { struct llist_node fu_llist ; struct callback_head fu_rcuhead ; }; struct file { union __anonunion_f_u_238 f_u ; struct path f_path ; struct inode *f_inode ; struct file_operations const *f_op ; spinlock_t f_lock ; atomic_long_t f_count ; unsigned int f_flags ; fmode_t f_mode ; struct mutex f_pos_lock ; loff_t f_pos ; struct fown_struct f_owner ; struct cred const *f_cred ; struct file_ra_state f_ra ; u64 f_version ; void *f_security ; void *private_data ; struct list_head f_ep_links ; struct list_head f_tfile_llink ; struct address_space *f_mapping ; }; typedef void *fl_owner_t; struct file_lock; struct file_lock_operations { void (*fl_copy_lock)(struct file_lock * , struct file_lock * ) ; void (*fl_release_private)(struct file_lock * ) ; }; struct lock_manager_operations { int (*lm_compare_owner)(struct file_lock * , struct file_lock * ) ; unsigned long (*lm_owner_key)(struct file_lock * ) ; fl_owner_t (*lm_get_owner)(fl_owner_t ) ; void (*lm_put_owner)(fl_owner_t ) ; void (*lm_notify)(struct file_lock * ) ; int (*lm_grant)(struct file_lock * , int ) ; bool (*lm_break)(struct file_lock * ) ; int (*lm_change)(struct file_lock * , int , struct list_head * ) ; void (*lm_setup)(struct file_lock * , void ** ) ; }; struct nlm_lockowner; struct nfs_lock_info { u32 state ; struct nlm_lockowner *owner ; struct list_head list ; }; struct nfs4_lock_state; struct nfs4_lock_info { struct nfs4_lock_state *owner ; }; struct fasync_struct; struct __anonstruct_afs_240 { struct list_head link ; int state ; }; union __anonunion_fl_u_239 { struct nfs_lock_info nfs_fl ; struct nfs4_lock_info nfs4_fl ; struct __anonstruct_afs_240 afs ; }; struct file_lock { struct file_lock *fl_next ; struct list_head fl_list ; struct hlist_node fl_link ; struct list_head fl_block ; fl_owner_t fl_owner ; unsigned int fl_flags ; unsigned char fl_type ; unsigned int fl_pid ; int fl_link_cpu ; struct pid *fl_nspid ; wait_queue_head_t fl_wait ; struct file *fl_file ; loff_t fl_start ; loff_t fl_end ; struct fasync_struct *fl_fasync ; unsigned long fl_break_time ; unsigned long fl_downgrade_time ; struct file_lock_operations const *fl_ops ; struct lock_manager_operations const *fl_lmops ; union __anonunion_fl_u_239 fl_u ; }; struct file_lock_context { spinlock_t flc_lock ; struct list_head flc_flock ; struct list_head flc_posix ; struct list_head flc_lease ; }; struct fasync_struct { spinlock_t fa_lock ; int magic ; int fa_fd ; struct fasync_struct *fa_next ; struct file *fa_file ; struct callback_head fa_rcu ; }; struct sb_writers { struct percpu_counter counter[3U] ; wait_queue_head_t wait ; int frozen ; wait_queue_head_t wait_unfrozen ; struct lockdep_map lock_map[3U] ; }; struct super_operations; struct xattr_handler; struct mtd_info; struct super_block { struct list_head s_list ; dev_t s_dev ; unsigned char s_blocksize_bits ; unsigned long s_blocksize ; loff_t s_maxbytes ; struct file_system_type *s_type ; struct super_operations const *s_op ; struct dquot_operations const *dq_op ; struct quotactl_ops const *s_qcop ; struct export_operations const *s_export_op ; unsigned long s_flags ; unsigned long s_iflags ; unsigned long s_magic ; struct dentry *s_root ; struct rw_semaphore s_umount ; int s_count ; atomic_t s_active ; void *s_security ; struct xattr_handler const **s_xattr ; struct list_head s_inodes ; struct hlist_bl_head s_anon ; struct list_head s_mounts ; struct block_device *s_bdev ; struct backing_dev_info *s_bdi ; struct mtd_info *s_mtd ; struct hlist_node s_instances ; unsigned int s_quota_types ; struct quota_info s_dquot ; struct sb_writers s_writers ; char s_id[32U] ; u8 s_uuid[16U] ; void *s_fs_info ; unsigned int s_max_links ; fmode_t s_mode ; u32 s_time_gran ; struct mutex s_vfs_rename_mutex ; char *s_subtype ; char *s_options ; struct dentry_operations const *s_d_op ; int cleancache_poolid ; struct shrinker s_shrink ; atomic_long_t s_remove_count ; int s_readonly_remount ; struct workqueue_struct *s_dio_done_wq ; struct hlist_head s_pins ; struct list_lru s_dentry_lru ; struct list_lru s_inode_lru ; struct callback_head rcu ; int s_stack_depth ; }; struct fiemap_extent_info { unsigned int fi_flags ; unsigned int fi_extents_mapped ; unsigned int fi_extents_max ; struct fiemap_extent *fi_extents_start ; }; struct dir_context; struct dir_context { int (*actor)(struct dir_context * , char const * , int , loff_t , u64 , unsigned int ) ; loff_t pos ; }; struct block_device_operations; struct file_operations { struct module *owner ; loff_t (*llseek)(struct file * , loff_t , int ) ; ssize_t (*read)(struct file * , char * , size_t , loff_t * ) ; ssize_t (*write)(struct file * , char const * , size_t , loff_t * ) ; ssize_t (*read_iter)(struct kiocb * , struct iov_iter * ) ; ssize_t (*write_iter)(struct kiocb * , struct iov_iter * ) ; int (*iterate)(struct file * , struct dir_context * ) ; unsigned int (*poll)(struct file * , struct poll_table_struct * ) ; long (*unlocked_ioctl)(struct file * , unsigned int , unsigned long ) ; long (*compat_ioctl)(struct file * , unsigned int , unsigned long ) ; int (*mmap)(struct file * , struct vm_area_struct * ) ; int (*mremap)(struct file * , struct vm_area_struct * ) ; int (*open)(struct inode * , struct file * ) ; int (*flush)(struct file * , fl_owner_t ) ; int (*release)(struct inode * , struct file * ) ; int (*fsync)(struct file * , loff_t , loff_t , int ) ; int (*aio_fsync)(struct kiocb * , int ) ; int (*fasync)(int , struct file * , int ) ; int (*lock)(struct file * , int , struct file_lock * ) ; ssize_t (*sendpage)(struct file * , struct page * , int , size_t , loff_t * , int ) ; unsigned long (*get_unmapped_area)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ) ; int (*check_flags)(int ) ; int (*flock)(struct file * , int , struct file_lock * ) ; ssize_t (*splice_write)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ) ; ssize_t (*splice_read)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ) ; int (*setlease)(struct file * , long , struct file_lock ** , void ** ) ; long (*fallocate)(struct file * , int , loff_t , loff_t ) ; void (*show_fdinfo)(struct seq_file * , struct file * ) ; }; struct inode_operations { struct dentry *(*lookup)(struct inode * , struct dentry * , unsigned int ) ; char const *(*follow_link)(struct dentry * , void ** ) ; int (*permission)(struct inode * , int ) ; struct posix_acl *(*get_acl)(struct inode * , int ) ; int (*readlink)(struct dentry * , char * , int ) ; void (*put_link)(struct inode * , void * ) ; int (*create)(struct inode * , struct dentry * , umode_t , bool ) ; int (*link)(struct dentry * , struct inode * , struct dentry * ) ; int (*unlink)(struct inode * , struct dentry * ) ; int (*symlink)(struct inode * , struct dentry * , char const * ) ; int (*mkdir)(struct inode * , struct dentry * , umode_t ) ; int (*rmdir)(struct inode * , struct dentry * ) ; int (*mknod)(struct inode * , struct dentry * , umode_t , dev_t ) ; int (*rename)(struct inode * , struct dentry * , struct inode * , struct dentry * ) ; int (*rename2)(struct inode * , struct dentry * , struct inode * , struct dentry * , unsigned int ) ; int (*setattr)(struct dentry * , struct iattr * ) ; int (*getattr)(struct vfsmount * , struct dentry * , struct kstat * ) ; int (*setxattr)(struct dentry * , char const * , void const * , size_t , int ) ; ssize_t (*getxattr)(struct dentry * , char const * , void * , size_t ) ; ssize_t (*listxattr)(struct dentry * , char * , size_t ) ; int (*removexattr)(struct dentry * , char const * ) ; int (*fiemap)(struct inode * , struct fiemap_extent_info * , u64 , u64 ) ; int (*update_time)(struct inode * , struct timespec * , int ) ; int (*atomic_open)(struct inode * , struct dentry * , struct file * , unsigned int , umode_t , int * ) ; int (*tmpfile)(struct inode * , struct dentry * , umode_t ) ; int (*set_acl)(struct inode * , struct posix_acl * , int ) ; }; struct super_operations { struct inode *(*alloc_inode)(struct super_block * ) ; void (*destroy_inode)(struct inode * ) ; void (*dirty_inode)(struct inode * , int ) ; int (*write_inode)(struct inode * , struct writeback_control * ) ; int (*drop_inode)(struct inode * ) ; void (*evict_inode)(struct inode * ) ; void (*put_super)(struct super_block * ) ; int (*sync_fs)(struct super_block * , int ) ; int (*freeze_super)(struct super_block * ) ; int (*freeze_fs)(struct super_block * ) ; int (*thaw_super)(struct super_block * ) ; int (*unfreeze_fs)(struct super_block * ) ; int (*statfs)(struct dentry * , struct kstatfs * ) ; int (*remount_fs)(struct super_block * , int * , char * ) ; void (*umount_begin)(struct super_block * ) ; int (*show_options)(struct seq_file * , struct dentry * ) ; int (*show_devname)(struct seq_file * , struct dentry * ) ; int (*show_path)(struct seq_file * , struct dentry * ) ; int (*show_stats)(struct seq_file * , struct dentry * ) ; ssize_t (*quota_read)(struct super_block * , int , char * , size_t , loff_t ) ; ssize_t (*quota_write)(struct super_block * , int , char const * , size_t , loff_t ) ; struct dquot **(*get_dquots)(struct inode * ) ; int (*bdev_try_to_free_page)(struct super_block * , struct page * , gfp_t ) ; long (*nr_cached_objects)(struct super_block * , struct shrink_control * ) ; long (*free_cached_objects)(struct super_block * , struct shrink_control * ) ; }; struct file_system_type { char const *name ; int fs_flags ; struct dentry *(*mount)(struct file_system_type * , int , char const * , void * ) ; void (*kill_sb)(struct super_block * ) ; struct module *owner ; struct file_system_type *next ; struct hlist_head fs_supers ; struct lock_class_key s_lock_key ; struct lock_class_key s_umount_key ; struct lock_class_key s_vfs_rename_key ; struct lock_class_key s_writers_key[3U] ; struct lock_class_key i_lock_key ; struct lock_class_key i_mutex_key ; struct lock_class_key i_mutex_dir_key ; }; struct disk_stats { unsigned long sectors[2U] ; unsigned long ios[2U] ; unsigned long merges[2U] ; unsigned long ticks[2U] ; unsigned long io_ticks ; unsigned long time_in_queue ; }; struct partition_meta_info { char uuid[37U] ; u8 volname[64U] ; }; struct hd_struct { sector_t start_sect ; sector_t nr_sects ; seqcount_t nr_sects_seq ; sector_t alignment_offset ; unsigned int discard_alignment ; struct device __dev ; struct kobject *holder_dir ; int policy ; int partno ; struct partition_meta_info *info ; int make_it_fail ; unsigned long stamp ; atomic_t in_flight[2U] ; struct disk_stats *dkstats ; atomic_t ref ; struct callback_head callback_head ; }; struct disk_part_tbl { struct callback_head callback_head ; int len ; struct hd_struct *last_lookup ; struct hd_struct *part[] ; }; struct disk_events; struct timer_rand_state; struct blk_integrity; struct gendisk { int major ; int first_minor ; int minors ; char disk_name[32U] ; char *(*devnode)(struct gendisk * , umode_t * ) ; unsigned int events ; unsigned int async_events ; struct disk_part_tbl *part_tbl ; struct hd_struct part0 ; struct block_device_operations const *fops ; struct request_queue *queue ; void *private_data ; int flags ; struct device *driverfs_dev ; struct kobject *slave_dir ; struct timer_rand_state *random ; atomic_t sync_io ; struct disk_events *ev ; struct blk_integrity *integrity ; int node_id ; }; struct vm_fault { unsigned int flags ; unsigned long pgoff ; void *virtual_address ; struct page *cow_page ; struct page *page ; unsigned long max_pgoff ; pte_t *pte ; }; struct vm_operations_struct { void (*open)(struct vm_area_struct * ) ; void (*close)(struct vm_area_struct * ) ; int (*fault)(struct vm_area_struct * , struct vm_fault * ) ; void (*map_pages)(struct vm_area_struct * , struct vm_fault * ) ; int (*page_mkwrite)(struct vm_area_struct * , struct vm_fault * ) ; int (*pfn_mkwrite)(struct vm_area_struct * , struct vm_fault * ) ; int (*access)(struct vm_area_struct * , unsigned long , void * , int , int ) ; char const *(*name)(struct vm_area_struct * ) ; int (*set_policy)(struct vm_area_struct * , struct mempolicy * ) ; struct mempolicy *(*get_policy)(struct vm_area_struct * , unsigned long ) ; struct page *(*find_special_page)(struct vm_area_struct * , unsigned long ) ; }; struct exception_table_entry { int insn ; int fixup ; }; struct fprop_local_percpu { struct percpu_counter events ; unsigned int period ; raw_spinlock_t lock ; }; typedef int congested_fn(void * , int ); struct bdi_writeback_congested { unsigned long state ; atomic_t refcnt ; struct backing_dev_info *bdi ; int blkcg_id ; struct rb_node rb_node ; }; union __anonunion____missing_field_name_249 { struct work_struct release_work ; struct callback_head rcu ; }; struct bdi_writeback { struct backing_dev_info *bdi ; unsigned long state ; unsigned long last_old_flush ; struct list_head b_dirty ; struct list_head b_io ; struct list_head b_more_io ; struct list_head b_dirty_time ; spinlock_t list_lock ; struct percpu_counter stat[4U] ; struct bdi_writeback_congested *congested ; unsigned long bw_time_stamp ; unsigned long dirtied_stamp ; unsigned long written_stamp ; unsigned long write_bandwidth ; unsigned long avg_write_bandwidth ; unsigned long dirty_ratelimit ; unsigned long balanced_dirty_ratelimit ; struct fprop_local_percpu completions ; int dirty_exceeded ; spinlock_t work_lock ; struct list_head work_list ; struct delayed_work dwork ; struct percpu_ref refcnt ; struct fprop_local_percpu memcg_completions ; struct cgroup_subsys_state *memcg_css ; struct cgroup_subsys_state *blkcg_css ; struct list_head memcg_node ; struct list_head blkcg_node ; union __anonunion____missing_field_name_249 __annonCompField76 ; }; struct backing_dev_info { struct list_head bdi_list ; unsigned long ra_pages ; unsigned int capabilities ; congested_fn *congested_fn ; void *congested_data ; char *name ; unsigned int min_ratio ; unsigned int max_ratio ; unsigned int max_prop_frac ; atomic_long_t tot_write_bandwidth ; struct bdi_writeback wb ; struct radix_tree_root cgwb_tree ; struct rb_root cgwb_congested_tree ; atomic_t usage_cnt ; wait_queue_head_t wb_waitq ; struct device *dev ; struct timer_list laptop_mode_wb_timer ; struct dentry *debug_dir ; struct dentry *debug_stats ; }; typedef void *mempool_alloc_t(gfp_t , void * ); typedef void mempool_free_t(void * , void * ); struct mempool_s { spinlock_t lock ; int min_nr ; int curr_nr ; void **elements ; void *pool_data ; mempool_alloc_t *alloc ; mempool_free_t *free ; wait_queue_head_t wait ; }; typedef struct mempool_s mempool_t; union __anonunion____missing_field_name_250 { struct list_head q_node ; struct kmem_cache *__rcu_icq_cache ; }; union __anonunion____missing_field_name_251 { struct hlist_node ioc_node ; struct callback_head __rcu_head ; }; struct io_cq { struct request_queue *q ; struct io_context *ioc ; union __anonunion____missing_field_name_250 __annonCompField77 ; union __anonunion____missing_field_name_251 __annonCompField78 ; unsigned int flags ; }; struct io_context { atomic_long_t refcount ; atomic_t active_ref ; atomic_t nr_tasks ; spinlock_t lock ; unsigned short ioprio ; int nr_batch_requests ; unsigned long last_waited ; struct radix_tree_root icq_tree ; struct io_cq *icq_hint ; struct hlist_head icq_list ; struct work_struct release_work ; }; struct bio_integrity_payload { struct bio *bip_bio ; struct bvec_iter bip_iter ; bio_end_io_t *bip_end_io ; unsigned short bip_slab ; unsigned short bip_vcnt ; unsigned short bip_max_vcnt ; unsigned short bip_flags ; struct work_struct bip_work ; struct bio_vec *bip_vec ; struct bio_vec bip_inline_vecs[0U] ; }; struct bio_list { struct bio *head ; struct bio *tail ; }; struct bio_set { struct kmem_cache *bio_slab ; unsigned int front_pad ; mempool_t *bio_pool ; mempool_t *bvec_pool ; mempool_t *bio_integrity_pool ; mempool_t *bvec_integrity_pool ; spinlock_t rescue_lock ; struct bio_list rescue_list ; struct work_struct rescue_work ; struct workqueue_struct *rescue_workqueue ; }; struct bsg_class_device { struct device *class_dev ; struct device *parent ; int minor ; struct request_queue *queue ; struct kref ref ; void (*release)(struct device * ) ; }; struct elevator_queue; struct blk_trace; struct request; struct bsg_job; struct blkcg_gq; struct blk_flush_queue; typedef void rq_end_io_fn(struct request * , int ); struct request_list { struct request_queue *q ; struct blkcg_gq *blkg ; int count[2U] ; int starved[2U] ; mempool_t *rq_pool ; wait_queue_head_t wait[2U] ; unsigned int flags ; }; union __anonunion____missing_field_name_252 { struct call_single_data csd ; unsigned long fifo_time ; }; struct blk_mq_ctx; union __anonunion____missing_field_name_253 { struct hlist_node hash ; struct list_head ipi_list ; }; union __anonunion____missing_field_name_254 { struct rb_node rb_node ; void *completion_data ; }; struct __anonstruct_elv_256 { struct io_cq *icq ; void *priv[2U] ; }; struct __anonstruct_flush_257 { unsigned int seq ; struct list_head list ; rq_end_io_fn *saved_end_io ; }; union __anonunion____missing_field_name_255 { struct __anonstruct_elv_256 elv ; struct __anonstruct_flush_257 flush ; }; struct request { struct list_head queuelist ; union __anonunion____missing_field_name_252 __annonCompField79 ; struct request_queue *q ; struct blk_mq_ctx *mq_ctx ; u64 cmd_flags ; unsigned int cmd_type ; unsigned long atomic_flags ; int cpu ; unsigned int __data_len ; sector_t __sector ; struct bio *bio ; struct bio *biotail ; union __anonunion____missing_field_name_253 __annonCompField80 ; union __anonunion____missing_field_name_254 __annonCompField81 ; union __anonunion____missing_field_name_255 __annonCompField82 ; struct gendisk *rq_disk ; struct hd_struct *part ; unsigned long start_time ; struct request_list *rl ; unsigned long long start_time_ns ; unsigned long long io_start_time_ns ; unsigned short nr_phys_segments ; unsigned short nr_integrity_segments ; unsigned short ioprio ; void *special ; int tag ; int errors ; unsigned char __cmd[16U] ; unsigned char *cmd ; unsigned short cmd_len ; unsigned int extra_len ; unsigned int sense_len ; unsigned int resid_len ; void *sense ; unsigned long deadline ; struct list_head timeout_list ; unsigned int timeout ; int retries ; rq_end_io_fn *end_io ; void *end_io_data ; struct request *next_rq ; }; struct elevator_type; typedef int elevator_merge_fn(struct request_queue * , struct request ** , struct bio * ); typedef void elevator_merge_req_fn(struct request_queue * , struct request * , struct request * ); typedef void elevator_merged_fn(struct request_queue * , struct request * , int ); typedef int elevator_allow_merge_fn(struct request_queue * , struct request * , struct bio * ); typedef void elevator_bio_merged_fn(struct request_queue * , struct request * , struct bio * ); typedef int elevator_dispatch_fn(struct request_queue * , int ); typedef void elevator_add_req_fn(struct request_queue * , struct request * ); typedef struct request *elevator_request_list_fn(struct request_queue * , struct request * ); typedef void elevator_completed_req_fn(struct request_queue * , struct request * ); typedef int elevator_may_queue_fn(struct request_queue * , int ); typedef void elevator_init_icq_fn(struct io_cq * ); typedef void elevator_exit_icq_fn(struct io_cq * ); typedef int elevator_set_req_fn(struct request_queue * , struct request * , struct bio * , gfp_t ); typedef void elevator_put_req_fn(struct request * ); typedef void elevator_activate_req_fn(struct request_queue * , struct request * ); typedef void elevator_deactivate_req_fn(struct request_queue * , struct request * ); typedef int elevator_init_fn(struct request_queue * , struct elevator_type * ); typedef void elevator_exit_fn(struct elevator_queue * ); typedef void elevator_registered_fn(struct request_queue * ); struct elevator_ops { elevator_merge_fn *elevator_merge_fn ; elevator_merged_fn *elevator_merged_fn ; elevator_merge_req_fn *elevator_merge_req_fn ; elevator_allow_merge_fn *elevator_allow_merge_fn ; elevator_bio_merged_fn *elevator_bio_merged_fn ; elevator_dispatch_fn *elevator_dispatch_fn ; elevator_add_req_fn *elevator_add_req_fn ; elevator_activate_req_fn *elevator_activate_req_fn ; elevator_deactivate_req_fn *elevator_deactivate_req_fn ; elevator_completed_req_fn *elevator_completed_req_fn ; elevator_request_list_fn *elevator_former_req_fn ; elevator_request_list_fn *elevator_latter_req_fn ; elevator_init_icq_fn *elevator_init_icq_fn ; elevator_exit_icq_fn *elevator_exit_icq_fn ; elevator_set_req_fn *elevator_set_req_fn ; elevator_put_req_fn *elevator_put_req_fn ; elevator_may_queue_fn *elevator_may_queue_fn ; elevator_init_fn *elevator_init_fn ; elevator_exit_fn *elevator_exit_fn ; elevator_registered_fn *elevator_registered_fn ; }; struct elv_fs_entry { struct attribute attr ; ssize_t (*show)(struct elevator_queue * , char * ) ; ssize_t (*store)(struct elevator_queue * , char const * , size_t ) ; }; struct elevator_type { struct kmem_cache *icq_cache ; struct elevator_ops ops ; size_t icq_size ; size_t icq_align ; struct elv_fs_entry *elevator_attrs ; char elevator_name[16U] ; struct module *elevator_owner ; char icq_cache_name[21U] ; struct list_head list ; }; struct elevator_queue { struct elevator_type *type ; void *elevator_data ; struct kobject kobj ; struct mutex sysfs_lock ; unsigned char registered : 1 ; struct hlist_head hash[64U] ; }; typedef void request_fn_proc(struct request_queue * ); typedef void make_request_fn(struct request_queue * , struct bio * ); typedef int prep_rq_fn(struct request_queue * , struct request * ); typedef void unprep_rq_fn(struct request_queue * , struct request * ); struct bvec_merge_data { struct block_device *bi_bdev ; sector_t bi_sector ; unsigned int bi_size ; unsigned long bi_rw ; }; typedef int merge_bvec_fn(struct request_queue * , struct bvec_merge_data * , struct bio_vec * ); typedef void softirq_done_fn(struct request * ); typedef int dma_drain_needed_fn(struct request * ); typedef int lld_busy_fn(struct request_queue * ); typedef int bsg_job_fn(struct bsg_job * ); enum blk_eh_timer_return { BLK_EH_NOT_HANDLED = 0, BLK_EH_HANDLED = 1, BLK_EH_RESET_TIMER = 2 } ; typedef enum blk_eh_timer_return rq_timed_out_fn(struct request * ); struct blk_queue_tag { struct request **tag_index ; unsigned long *tag_map ; int busy ; int max_depth ; int real_max_depth ; atomic_t refcnt ; int alloc_policy ; int next_tag ; }; struct queue_limits { unsigned long bounce_pfn ; unsigned long seg_boundary_mask ; unsigned int max_hw_sectors ; unsigned int chunk_sectors ; unsigned int max_sectors ; unsigned int max_segment_size ; unsigned int physical_block_size ; unsigned int alignment_offset ; unsigned int io_min ; unsigned int io_opt ; unsigned int max_discard_sectors ; unsigned int max_write_same_sectors ; unsigned int discard_granularity ; unsigned int discard_alignment ; unsigned short logical_block_size ; unsigned short max_segments ; unsigned short max_integrity_segments ; unsigned char misaligned ; unsigned char discard_misaligned ; unsigned char cluster ; unsigned char discard_zeroes_data ; unsigned char raid_partial_stripes_expensive ; }; struct blk_mq_ops; struct blk_mq_hw_ctx; struct throtl_data; struct blk_mq_tag_set; struct request_queue { struct list_head queue_head ; struct request *last_merge ; struct elevator_queue *elevator ; int nr_rqs[2U] ; int nr_rqs_elvpriv ; struct request_list root_rl ; request_fn_proc *request_fn ; make_request_fn *make_request_fn ; prep_rq_fn *prep_rq_fn ; unprep_rq_fn *unprep_rq_fn ; merge_bvec_fn *merge_bvec_fn ; softirq_done_fn *softirq_done_fn ; rq_timed_out_fn *rq_timed_out_fn ; dma_drain_needed_fn *dma_drain_needed ; lld_busy_fn *lld_busy_fn ; struct blk_mq_ops *mq_ops ; unsigned int *mq_map ; struct blk_mq_ctx *queue_ctx ; unsigned int nr_queues ; struct blk_mq_hw_ctx **queue_hw_ctx ; unsigned int nr_hw_queues ; sector_t end_sector ; struct request *boundary_rq ; struct delayed_work delay_work ; struct backing_dev_info backing_dev_info ; void *queuedata ; unsigned long queue_flags ; int id ; gfp_t bounce_gfp ; spinlock_t __queue_lock ; spinlock_t *queue_lock ; struct kobject kobj ; struct kobject mq_kobj ; struct device *dev ; int rpm_status ; unsigned int nr_pending ; unsigned long nr_requests ; unsigned int nr_congestion_on ; unsigned int nr_congestion_off ; unsigned int nr_batching ; unsigned int dma_drain_size ; void *dma_drain_buffer ; unsigned int dma_pad_mask ; unsigned int dma_alignment ; struct blk_queue_tag *queue_tags ; struct list_head tag_busy_list ; unsigned int nr_sorted ; unsigned int in_flight[2U] ; unsigned int request_fn_active ; unsigned int rq_timeout ; struct timer_list timeout ; struct list_head timeout_list ; struct list_head icq_list ; unsigned long blkcg_pols[1U] ; struct blkcg_gq *root_blkg ; struct list_head blkg_list ; struct queue_limits limits ; unsigned int sg_timeout ; unsigned int sg_reserved_size ; int node ; struct blk_trace *blk_trace ; unsigned int flush_flags ; unsigned char flush_not_queueable : 1 ; struct blk_flush_queue *fq ; struct list_head requeue_list ; spinlock_t requeue_lock ; struct work_struct requeue_work ; struct mutex sysfs_lock ; int bypass_depth ; atomic_t mq_freeze_depth ; bsg_job_fn *bsg_job_fn ; int bsg_job_size ; struct bsg_class_device bsg_dev ; struct throtl_data *td ; struct callback_head callback_head ; wait_queue_head_t mq_freeze_wq ; struct percpu_ref mq_usage_counter ; struct list_head all_q_node ; struct blk_mq_tag_set *tag_set ; struct list_head tag_set_list ; }; struct blk_plug { struct list_head list ; struct list_head mq_list ; struct list_head cb_list ; }; struct blk_integrity_iter { void *prot_buf ; void *data_buf ; sector_t seed ; unsigned int data_size ; unsigned short interval ; char const *disk_name ; }; typedef int integrity_processing_fn(struct blk_integrity_iter * ); struct blk_integrity { integrity_processing_fn *generate_fn ; integrity_processing_fn *verify_fn ; unsigned short flags ; unsigned short tuple_size ; unsigned short interval ; unsigned short tag_size ; char const *name ; struct kobject kobj ; }; struct block_device_operations { int (*open)(struct block_device * , fmode_t ) ; void (*release)(struct gendisk * , fmode_t ) ; int (*rw_page)(struct block_device * , sector_t , struct page * , int ) ; int (*ioctl)(struct block_device * , fmode_t , unsigned int , unsigned long ) ; int (*compat_ioctl)(struct block_device * , fmode_t , unsigned int , unsigned long ) ; long (*direct_access)(struct block_device * , sector_t , void ** , unsigned long * , long ) ; unsigned int (*check_events)(struct gendisk * , unsigned int ) ; int (*media_changed)(struct gendisk * ) ; void (*unlock_native_capacity)(struct gendisk * ) ; int (*revalidate_disk)(struct gendisk * ) ; int (*getgeo)(struct block_device * , struct hd_geometry * ) ; void (*swap_slot_free_notify)(struct block_device * , unsigned long ) ; struct module *owner ; }; struct dm_dev; struct dm_table; struct mapped_device; enum ldv_25489 { STATUSTYPE_INFO = 0, STATUSTYPE_TABLE = 1 } ; typedef enum ldv_25489 status_type_t; union map_info { void *ptr ; }; struct dm_dev { struct block_device *bdev ; fmode_t mode ; char name[16U] ; }; struct target_type { uint64_t features ; char const *name ; struct module *module ; unsigned int version[3U] ; int (*ctr)(struct dm_target * , unsigned int , char ** ) ; void (*dtr)(struct dm_target * ) ; int (*map)(struct dm_target * , struct bio * ) ; int (*map_rq)(struct dm_target * , struct request * , union map_info * ) ; int (*clone_and_map_rq)(struct dm_target * , struct request * , union map_info * , struct request ** ) ; void (*release_clone_rq)(struct request * ) ; int (*end_io)(struct dm_target * , struct bio * , int ) ; int (*rq_end_io)(struct dm_target * , struct request * , int , union map_info * ) ; void (*presuspend)(struct dm_target * ) ; void (*presuspend_undo)(struct dm_target * ) ; void (*postsuspend)(struct dm_target * ) ; int (*preresume)(struct dm_target * ) ; void (*resume)(struct dm_target * ) ; void (*status)(struct dm_target * , status_type_t , unsigned int , char * , unsigned int ) ; int (*message)(struct dm_target * , unsigned int , char ** ) ; int (*ioctl)(struct dm_target * , unsigned int , unsigned long ) ; int (*merge)(struct dm_target * , struct bvec_merge_data * , struct bio_vec * , int ) ; int (*busy)(struct dm_target * ) ; int (*iterate_devices)(struct dm_target * , int (*)(struct dm_target * , struct dm_dev * , sector_t , sector_t , void * ) , void * ) ; void (*io_hints)(struct dm_target * , struct queue_limits * ) ; struct list_head list ; }; struct dm_target { struct dm_table *table ; struct target_type *type ; sector_t begin ; sector_t len ; uint32_t max_io_len ; unsigned int num_flush_bios ; unsigned int num_discard_bios ; unsigned int num_write_same_bios ; unsigned int per_bio_data_size ; unsigned int (*num_write_bios)(struct dm_target * , struct bio * ) ; void *private ; char *error ; bool flush_supported ; bool discards_supported ; bool split_discard_bios ; bool discard_zeroes_data_unsupported ; }; struct dm_io; struct dm_target_io { struct dm_io *io ; struct dm_target *ti ; unsigned int target_bio_nr ; unsigned int *len_ptr ; struct bio clone ; }; struct dm_io_region { struct block_device *bdev ; sector_t sector ; sector_t count ; }; struct dm_kcopyd_throttle { unsigned int throttle ; unsigned int num_io_jobs ; unsigned int io_period ; unsigned int total_period ; unsigned int last_jiffies ; }; struct dm_kcopyd_client; enum writeback_sync_modes { WB_SYNC_NONE = 0, WB_SYNC_ALL = 1 } ; struct writeback_control { long nr_to_write ; long pages_skipped ; loff_t range_start ; loff_t range_end ; enum writeback_sync_modes sync_mode ; unsigned char for_kupdate : 1 ; unsigned char for_background : 1 ; unsigned char tagged_writepages : 1 ; unsigned char for_reclaim : 1 ; unsigned char range_cyclic : 1 ; unsigned char for_sync : 1 ; struct bdi_writeback *wb ; struct inode *inode ; int wb_id ; int wb_lcand_id ; int wb_tcand_id ; size_t wb_bytes ; size_t wb_lcand_bytes ; size_t wb_tcand_bytes ; }; struct taskstats { __u16 version ; __u32 ac_exitcode ; __u8 ac_flag ; __u8 ac_nice ; __u64 cpu_count ; __u64 cpu_delay_total ; __u64 blkio_count ; __u64 blkio_delay_total ; __u64 swapin_count ; __u64 swapin_delay_total ; __u64 cpu_run_real_total ; __u64 cpu_run_virtual_total ; char ac_comm[32U] ; __u8 ac_sched ; __u8 ac_pad[3U] ; __u32 ac_uid ; __u32 ac_gid ; __u32 ac_pid ; __u32 ac_ppid ; __u32 ac_btime ; __u64 ac_etime ; __u64 ac_utime ; __u64 ac_stime ; __u64 ac_minflt ; __u64 ac_majflt ; __u64 coremem ; __u64 virtmem ; __u64 hiwater_rss ; __u64 hiwater_vm ; __u64 read_char ; __u64 write_char ; __u64 read_syscalls ; __u64 write_syscalls ; __u64 read_bytes ; __u64 write_bytes ; __u64 cancelled_write_bytes ; __u64 nvcsw ; __u64 nivcsw ; __u64 ac_utimescaled ; __u64 ac_stimescaled ; __u64 cpu_scaled_run_real_total ; __u64 freepages_count ; __u64 freepages_delay_total ; }; struct blkcg_policy_data; struct blkcg { struct cgroup_subsys_state css ; spinlock_t lock ; struct radix_tree_root blkg_tree ; struct blkcg_gq *blkg_hint ; struct hlist_head blkg_list ; struct blkcg_policy_data *pd[2U] ; struct list_head cgwb_list ; }; struct blkg_policy_data { struct blkcg_gq *blkg ; int plid ; struct list_head alloc_node ; }; struct blkcg_policy_data { int plid ; struct list_head alloc_node ; }; struct blkcg_gq { struct request_queue *q ; struct list_head q_node ; struct hlist_node blkcg_node ; struct blkcg *blkcg ; struct bdi_writeback_congested *wb_congested ; struct blkcg_gq *parent ; struct request_list rl ; atomic_t refcnt ; bool online ; struct blkg_policy_data *pd[2U] ; struct callback_head callback_head ; }; struct hd_geometry { unsigned char heads ; unsigned char sectors ; unsigned short cylinders ; unsigned long start ; }; typedef sector_t chunk_t; struct dm_exception { struct list_head hash_list ; chunk_t old_chunk ; chunk_t new_chunk ; }; struct dm_exception_store_type { char const *name ; struct module *module ; int (*ctr)(struct dm_exception_store * , unsigned int , char ** ) ; void (*dtr)(struct dm_exception_store * ) ; int (*read_metadata)(struct dm_exception_store * , int (*)(void * , chunk_t , chunk_t ) , void * ) ; int (*prepare_exception)(struct dm_exception_store * , struct dm_exception * ) ; void (*commit_exception)(struct dm_exception_store * , struct dm_exception * , void (*)(void * , int ) , void * ) ; int (*prepare_merge)(struct dm_exception_store * , chunk_t * , chunk_t * ) ; int (*commit_merge)(struct dm_exception_store * , int ) ; void (*drop_snapshot)(struct dm_exception_store * ) ; unsigned int (*status)(struct dm_exception_store * , status_type_t , char * , unsigned int ) ; void (*usage)(struct dm_exception_store * , sector_t * , sector_t * , sector_t * ) ; struct list_head list ; }; struct dm_snapshot; struct dm_exception_store { struct dm_exception_store_type *type ; struct dm_snapshot *snap ; unsigned int chunk_size ; unsigned int chunk_mask ; unsigned int chunk_shift ; void *context ; }; struct dm_exception_table { uint32_t hash_mask ; unsigned int hash_shift ; struct list_head *table ; }; struct dm_snapshot { struct rw_semaphore lock ; struct dm_dev *origin ; struct dm_dev *cow ; struct dm_target *ti ; struct list_head list ; int valid ; int active ; atomic_t pending_exceptions_count ; sector_t exception_start_sequence ; sector_t exception_complete_sequence ; struct list_head out_of_order_list ; mempool_t *pending_pool ; struct dm_exception_table pending ; struct dm_exception_table complete ; spinlock_t pe_lock ; spinlock_t tracked_chunk_lock ; struct hlist_head tracked_chunk_hash[16U] ; struct dm_exception_store *store ; struct dm_kcopyd_client *kcopyd_client ; unsigned long state_bits ; chunk_t first_merging_chunk ; int num_merging_chunks ; int merge_failed ; struct bio_list bios_queued_during_merge ; }; struct dm_snap_pending_exception { struct dm_exception e ; struct bio_list origin_bios ; struct bio_list snapshot_bios ; struct dm_snapshot *snap ; int started ; int copy_error ; sector_t exception_sequence ; struct list_head out_of_order_entry ; struct bio *full_bio ; bio_end_io_t *full_bio_end_io ; void *full_bio_private ; }; struct dm_snap_tracked_chunk { struct hlist_node node ; chunk_t chunk ; }; struct origin { struct block_device *bdev ; struct list_head hash_list ; struct list_head snapshots ; }; struct dm_origin { struct dm_dev *dev ; struct dm_target *ti ; unsigned int split_boundary ; struct list_head hash_list ; }; union __anonunion_u_268 { struct dm_exception_table table_swap ; struct dm_exception_store *store_swap ; }; enum hrtimer_restart; enum hrtimer_restart; struct transient_c { sector_t next_free ; }; typedef __u32 __le32; typedef __u64 __le64; enum hrtimer_restart; struct page_list { struct page_list *next ; struct page *page ; }; enum dm_io_mem_type { DM_IO_PAGE_LIST = 0, DM_IO_BIO = 1, DM_IO_VMA = 2, DM_IO_KMEM = 3 } ; union __anonunion_ptr_259 { struct page_list *pl ; struct bio *bio ; void *vma ; void *addr ; }; struct dm_io_memory { enum dm_io_mem_type type ; unsigned int offset ; union __anonunion_ptr_259 ptr ; }; struct dm_io_notify { void (*fn)(unsigned long , void * ) ; void *context ; }; struct dm_io_client; struct dm_io_request { int bi_rw ; struct dm_io_memory mem ; struct dm_io_notify notify ; struct dm_io_client *client ; }; struct dm_bufio_client; struct dm_buffer; struct disk_header { __le32 magic ; __le32 valid ; __le32 version ; __le32 chunk_size ; }; struct disk_exception { __le64 old_chunk ; __le64 new_chunk ; }; struct core_exception { uint64_t old_chunk ; uint64_t new_chunk ; }; struct commit_callback { void (*callback)(void * , int ) ; void *context ; }; struct pstore { struct dm_exception_store *store ; int version ; int valid ; uint32_t exceptions_per_area ; void *area ; void *zero_area ; void *header_area ; chunk_t current_area ; chunk_t next_free ; uint32_t current_committed ; atomic_t pending_count ; uint32_t callback_count ; struct commit_callback *callbacks ; struct dm_io_client *io_client ; struct workqueue_struct *metadata_wq ; }; struct mdata_req { struct dm_io_region *where ; struct dm_io_request *io_req ; struct work_struct work ; int result ; }; __inline static long ldv__builtin_expect(long exp , long c ) ; extern struct module __this_module ; __inline static void set_bit(long nr , unsigned long volatile *addr ) { { __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); return; } } __inline static void clear_bit(long nr , unsigned long volatile *addr ) { { __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); return; } } __inline static void clear_bit_unlock(long nr , unsigned long volatile *addr ) { { __asm__ volatile ("": : : "memory"); clear_bit(nr, addr); return; } } __inline static int test_and_set_bit(long nr , unsigned long volatile *addr ) { char c ; { __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); return ((int )((signed char )c) != 0); } } __inline static int constant_test_bit(long nr , unsigned long const volatile *addr ) { { return ((int )((unsigned long )*(addr + (unsigned long )(nr >> 6)) >> ((int )nr & 63)) & 1); } } __inline static int variable_test_bit(long nr , unsigned long const volatile *addr ) { int oldbit ; { __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); return (oldbit); } } __inline static int fls64(__u64 x ) { int bitpos ; { bitpos = -1; __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); return (bitpos + 1); } } __inline static unsigned int fls_long(unsigned long l ) { int tmp___0 ; { tmp___0 = fls64((__u64 )l); return ((unsigned int )tmp___0); } } __inline static unsigned long __rounddown_pow_of_two(unsigned long n ) { unsigned int tmp ; { tmp = fls_long(n); return (1UL << (int )(tmp - 1U)); } } extern int printk(char const * , ...) ; extern void __might_sleep(char const * , int , int ) ; extern int snprintf(char * , size_t , char const * , ...) ; extern int scnprintf(char * , size_t , char const * , ...) ; bool ldv_is_err(void const *ptr ) ; long ldv_ptr_err(void const *ptr ) ; void ldv_spin_lock(void) ; void ldv_spin_unlock(void) ; extern void *malloc(size_t ) ; extern void *calloc(size_t , size_t ) ; extern void *memset(void * , int , size_t ) ; extern int __VERIFIER_nondet_int(void) ; extern unsigned long __VERIFIER_nondet_ulong(void) ; extern void *__VERIFIER_nondet_pointer(void) ; extern void __VERIFIER_assume(int ) ; void *ldv_malloc(size_t size ) { void *p ; void *tmp ; int tmp___0 ; { tmp___0 = __VERIFIER_nondet_int(); if (tmp___0 != 0) { return ((void *)0); } else { tmp = malloc(size); p = tmp; __VERIFIER_assume((unsigned long )p != (unsigned long )((void *)0)); return (p); } } } void *ldv_zalloc(size_t size ) { void *p ; void *tmp ; int tmp___0 ; { tmp___0 = __VERIFIER_nondet_int(); if (tmp___0 != 0) { return ((void *)0); } else { tmp = calloc(1UL, size); p = tmp; __VERIFIER_assume((unsigned long )p != (unsigned long )((void *)0)); return (p); } } } void *ldv_init_zalloc(size_t size ) { void *p ; void *tmp ; { tmp = calloc(1UL, size); p = tmp; __VERIFIER_assume((unsigned long )p != (unsigned long )((void *)0)); return (p); } } void *ldv_memset(void *s , int c , size_t n ) { void *tmp ; { tmp = memset(s, c, n); return (tmp); } } int ldv_undef_int(void) { int tmp ; { tmp = __VERIFIER_nondet_int(); return (tmp); } } void *ldv_undef_ptr(void) { void *tmp ; { tmp = __VERIFIER_nondet_pointer(); return (tmp); } } unsigned long ldv_undef_ulong(void) { unsigned long tmp ; { tmp = __VERIFIER_nondet_ulong(); return (tmp); } } __inline static void ldv_stop(void) { { LDV_STOP: ; goto LDV_STOP; } } __inline static long ldv__builtin_expect(long exp , long c ) { { return (exp); } } __inline static void INIT_LIST_HEAD(struct list_head *list ) { { list->next = list; list->prev = list; return; } } extern void __list_add(struct list_head * , struct list_head * , struct list_head * ) ; __inline static void list_add(struct list_head *new , struct list_head *head ) { { __list_add(new, head, head->next); return; } } __inline static void list_add_tail(struct list_head *new , struct list_head *head ) { { __list_add(new, head->prev, head); return; } } extern void list_del(struct list_head * ) ; __inline static int list_empty(struct list_head const *head ) { { return ((unsigned long )((struct list_head const *)head->next) == (unsigned long )head); } } __inline static void INIT_HLIST_NODE(struct hlist_node *h ) { { h->next = (struct hlist_node *)0; h->pprev = (struct hlist_node **)0; return; } } __inline static int hlist_unhashed(struct hlist_node const *h ) { { return ((unsigned long )h->pprev == (unsigned long )((struct hlist_node **/* const */)0)); } } __inline static int hlist_empty(struct hlist_head const *h ) { { return ((unsigned long )h->first == (unsigned long )((struct hlist_node */* const */)0)); } } __inline static void __hlist_del(struct hlist_node *n ) { struct hlist_node *next ; struct hlist_node **pprev ; { next = n->next; pprev = n->pprev; *pprev = next; if ((unsigned long )next != (unsigned long )((struct hlist_node *)0)) { next->pprev = pprev; } else { } return; } } __inline static void hlist_del(struct hlist_node *n ) { { __hlist_del(n); n->next = (struct hlist_node *)-2401263026317557504L; n->pprev = (struct hlist_node **)-2401263026316508672L; return; } } __inline static void hlist_add_head(struct hlist_node *n , struct hlist_head *h ) { struct hlist_node *first ; { first = h->first; n->next = first; if ((unsigned long )first != (unsigned long )((struct hlist_node *)0)) { first->pprev = & n->next; } else { } h->first = n; n->pprev = & h->first; return; } } __inline static long PTR_ERR(void const *ptr ) ; __inline static bool IS_ERR(void const *ptr ) ; __inline static int atomic_read(atomic_t const *v ) { int __var ; { __var = 0; return ((int )*((int const volatile *)(& v->counter))); } } __inline static void atomic_set(atomic_t *v , int i ) { { v->counter = i; return; } } __inline static void atomic_inc(atomic_t *v ) { { __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); return; } } __inline static void atomic_dec(atomic_t *v ) { { __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0": "+m" (v->counter)); return; } } extern void __raw_spin_lock_init(raw_spinlock_t * , char const * , struct lock_class_key * ) ; extern void _raw_spin_lock(raw_spinlock_t * ) ; extern void _raw_spin_lock_irq(raw_spinlock_t * ) ; extern void _raw_spin_unlock(raw_spinlock_t * ) ; extern void _raw_spin_unlock_irq(raw_spinlock_t * ) ; extern void _raw_spin_unlock_irqrestore(raw_spinlock_t * , unsigned long ) ; __inline static raw_spinlock_t *spinlock_check(spinlock_t *lock ) { { return (& lock->__annonCompField18.rlock); } } __inline static void ldv_spin_lock_5(spinlock_t *lock ) { { _raw_spin_lock(& lock->__annonCompField18.rlock); return; } } __inline static void spin_lock(spinlock_t *lock ) ; __inline static void ldv_spin_lock_irq_8(spinlock_t *lock ) { { _raw_spin_lock_irq(& lock->__annonCompField18.rlock); return; } } __inline static void spin_lock_irq(spinlock_t *lock ) ; __inline static void ldv_spin_unlock_9(spinlock_t *lock ) { { _raw_spin_unlock(& lock->__annonCompField18.rlock); return; } } __inline static void spin_unlock(spinlock_t *lock ) ; __inline static void ldv_spin_unlock_irq_11(spinlock_t *lock ) { { _raw_spin_unlock_irq(& lock->__annonCompField18.rlock); return; } } __inline static void spin_unlock_irq(spinlock_t *lock ) ; __inline static void ldv_spin_unlock_irqrestore_12(spinlock_t *lock , unsigned long flags ) { { _raw_spin_unlock_irqrestore(& lock->__annonCompField18.rlock, flags); return; } } __inline static void spin_unlock_irqrestore(spinlock_t *lock , unsigned long flags ) ; extern void __wake_up(wait_queue_head_t * , unsigned int , int , void * ) ; extern void wake_up_bit(void * , int ) ; extern int out_of_line_wait_on_bit(void * , int , wait_bit_action_f * , unsigned int ) ; extern long prepare_to_wait_event(wait_queue_head_t * , wait_queue_t * , int ) ; extern void finish_wait(wait_queue_head_t * , wait_queue_t * ) ; extern int bit_wait(struct wait_bit_key * ) ; __inline static int wait_on_bit(unsigned long *word , int bit , unsigned int mode ) { int tmp ; int tmp___0 ; { __might_sleep("include/linux/wait.h", 987, 0); tmp = variable_test_bit((long )bit, (unsigned long const volatile *)word); if (tmp == 0) { return (0); } else { } tmp___0 = out_of_line_wait_on_bit((void *)word, bit, & bit_wait, mode); return (tmp___0); } } extern void __init_rwsem(struct rw_semaphore * , char const * , struct lock_class_key * ) ; extern void down_read(struct rw_semaphore * ) ; extern void down_write(struct rw_semaphore * ) ; extern void up_read(struct rw_semaphore * ) ; extern void up_write(struct rw_semaphore * ) ; extern void down_write_nested(struct rw_semaphore * , int ) ; extern void schedule(void) ; extern struct kmem_cache *kmem_cache_create(char const * , size_t , size_t , unsigned long , void (*)(void * ) ) ; extern void kmem_cache_destroy(struct kmem_cache * ) ; extern void kfree(void const * ) ; void *ldv_kmem_cache_alloc_20(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) ; void *ldv_kmem_cache_alloc_23(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) ; void *ldv_kmem_cache_alloc_24(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) ; extern void kmem_cache_free(struct kmem_cache * , void * ) ; __inline static void *kmalloc(size_t size , gfp_t flags ) ; void ldv_check_alloc_flags(gfp_t flags ) ; int LDV_IN_INTERRUPT = 1; struct dm_exception *_persistent_type_group0 ; struct dm_exception *_persistent_compat_type_group0 ; struct dm_exception_store *_transient_type_group1 ; int ldv_state_variable_6 ; int ldv_state_variable_0 ; struct dm_target *origin_target_group1 ; int ldv_state_variable_5 ; struct dm_target *merge_target_group1 ; int ldv_state_variable_3 ; struct dm_exception_store *_persistent_compat_type_group1 ; struct dm_target *snapshot_target_group1 ; int ldv_state_variable_2 ; struct dm_exception *_transient_type_group0 ; struct dm_exception *_transient_compat_type_group0 ; int ref_cnt ; struct dm_exception_store *_transient_compat_type_group1 ; int ldv_state_variable_1 ; int ldv_state_variable_7 ; int ldv_state_variable_4 ; struct dm_exception_store *_persistent_type_group1 ; void ldv_initialize_dm_exception_store_type_1(void) ; void ldv_initialize_dm_exception_store_type_4(void) ; void ldv_target_type_5(void) ; void ldv_initialize_dm_exception_store_type_2(void) ; void ldv_target_type_7(void) ; void ldv_initialize_dm_exception_store_type_3(void) ; void ldv_target_type_6(void) ; __inline static loff_t i_size_read(struct inode const *inode ) { { return ((loff_t )inode->i_size); } } extern mempool_t *mempool_create(int , mempool_alloc_t * , mempool_free_t * , void * ) ; extern void mempool_destroy(mempool_t * ) ; void *ldv_mempool_alloc_25(mempool_t *ldv_func_arg1 , gfp_t flags ) ; extern void mempool_free(void * , mempool_t * ) ; extern void *mempool_alloc_slab(gfp_t , void * ) ; extern void mempool_free_slab(void * , void * ) ; __inline static mempool_t *mempool_create_slab_pool(int min_nr , struct kmem_cache *kc ) { mempool_t *tmp ; { tmp = mempool_create(min_nr, & mempool_alloc_slab, & mempool_free_slab, (void *)kc); return (tmp); } } extern void bio_endio(struct bio * , int ) ; __inline static void bio_list_init(struct bio_list *bl ) { struct bio *tmp ; { tmp = (struct bio *)0; bl->tail = tmp; bl->head = tmp; return; } } __inline static void bio_list_add(struct bio_list *bl , struct bio *bio ) { { bio->bi_next = (struct bio *)0; if ((unsigned long )bl->tail != (unsigned long )((struct bio *)0)) { (bl->tail)->bi_next = bio; } else { bl->head = bio; } bl->tail = bio; return; } } __inline static struct bio *bio_list_get(struct bio_list *bl ) { struct bio *bio ; struct bio *tmp ; { bio = bl->head; tmp = (struct bio *)0; bl->tail = tmp; bl->head = tmp; return (bio); } } extern void generic_make_request(struct bio * ) ; __inline static struct request_queue *bdev_get_queue(struct block_device *bdev ) { { return ((bdev->bd_disk)->queue); } } extern int dm_get_device(struct dm_target * , char const * , fmode_t , struct dm_dev ** ) ; extern void dm_put_device(struct dm_target * , struct dm_dev * ) ; __inline static void *dm_per_bio_data(struct bio *bio , size_t data_size ) { { return ((void *)bio + (0xffffffffffffffe0UL - data_size)); } } __inline static unsigned int dm_bio_get_target_bio_nr(struct bio const *bio ) { struct bio const *__mptr ; { __mptr = bio; return (((struct dm_target_io *)__mptr + 0xffffffffffffffe0UL)->target_bio_nr); } } extern int dm_register_target(struct target_type * ) ; extern void dm_unregister_target(struct target_type * ) ; extern int dm_hold(struct mapped_device * ) ; extern void dm_put(struct mapped_device * ) ; extern int dm_suspended(struct dm_target * ) ; extern void dm_accept_partial_bio(struct bio * , unsigned int ) ; extern int dm_set_target_max_io_len(struct dm_target * , sector_t ) ; extern sector_t dm_table_get_size(struct dm_table * ) ; extern fmode_t dm_table_get_mode(struct dm_table * ) ; extern struct mapped_device *dm_table_get_md(struct dm_table * ) ; extern void dm_table_event(struct dm_table * ) ; extern void *dm_vcalloc(unsigned long , unsigned long ) ; extern void msleep(unsigned int ) ; extern void vfree(void const * ) ; extern struct dm_kcopyd_client *dm_kcopyd_client_create(struct dm_kcopyd_throttle * ) ; extern void dm_kcopyd_client_destroy(struct dm_kcopyd_client * ) ; extern int dm_kcopyd_copy(struct dm_kcopyd_client * , struct dm_io_region * , unsigned int , struct dm_io_region * , unsigned int , void (*)(int , unsigned long , void * ) , void * ) ; extern void *dm_kcopyd_prepare_callback(struct dm_kcopyd_client * , void (*)(int , unsigned long , void * ) , void * ) ; extern void dm_kcopyd_do_callback(void * , int , unsigned long ) ; extern void dm_internal_suspend_fast(struct mapped_device * ) ; extern void dm_internal_resume_fast(struct mapped_device * ) ; struct dm_dev *dm_snap_origin(struct dm_snapshot *s ) ; struct dm_dev *dm_snap_cow(struct dm_snapshot *s ) ; __inline static chunk_t dm_chunk_number(chunk_t chunk ) { { return (chunk & 72057594037927935UL); } } __inline static unsigned int dm_consecutive_chunk_count(struct dm_exception *e ) { { return ((unsigned int )(e->new_chunk >> 56)); } } __inline static void dm_consecutive_chunk_count_inc(struct dm_exception *e ) { unsigned int tmp ; long tmp___0 ; { e->new_chunk = (chunk_t )((unsigned long long )e->new_chunk + 72057594037927936ULL); tmp = dm_consecutive_chunk_count(e); tmp___0 = ldv__builtin_expect(tmp == 0U, 0L); if (tmp___0 != 0L) { __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/inst/current/envs/linux-4.2-rc1.tar.xz/linux-4.2-rc1/drivers/md/dm-exception-store.h"), "i" (155), "i" (12UL)); ldv_34535: ; goto ldv_34535; } else { } return; } } __inline static void dm_consecutive_chunk_count_dec(struct dm_exception *e ) { unsigned int tmp ; long tmp___0 ; { tmp = dm_consecutive_chunk_count(e); tmp___0 = ldv__builtin_expect(tmp == 0U, 0L); if (tmp___0 != 0L) { __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/inst/current/envs/linux-4.2-rc1.tar.xz/linux-4.2-rc1/drivers/md/dm-exception-store.h"), "i" (160), "i" (12UL)); ldv_34539: ; goto ldv_34539; } else { } e->new_chunk = (chunk_t )((unsigned long long )e->new_chunk - 72057594037927936ULL); return; } } __inline static sector_t get_dev_size(struct block_device *bdev ) { loff_t tmp ; { tmp = i_size_read((struct inode const *)bdev->bd_inode); return ((sector_t )(tmp >> 9)); } } __inline static chunk_t sector_to_chunk(struct dm_exception_store *store , sector_t sector ) { { return (sector >> (int )store->chunk_shift); } } int dm_exception_store_create(struct dm_target *ti , int argc , char **argv , struct dm_snapshot *snap , unsigned int *args_used , struct dm_exception_store **store ) ; void dm_exception_store_destroy(struct dm_exception_store *store ) ; int dm_exception_store_init(void) ; void dm_exception_store_exit(void) ; static char const dm_snapshot_merge_target_name[15U] = { 's', 'n', 'a', 'p', 's', 'h', 'o', 't', '-', 'm', 'e', 'r', 'g', 'e', '\000'}; static struct dm_kcopyd_throttle dm_kcopyd_throttle = {100U, 0U, 0U, 0U, 0U}; struct dm_dev *dm_snap_origin(struct dm_snapshot *s ) { { return (s->origin); } } static char const __kstrtab_dm_snap_origin[15U] = { 'd', 'm', '_', 's', 'n', 'a', 'p', '_', 'o', 'r', 'i', 'g', 'i', 'n', '\000'}; struct kernel_symbol const __ksymtab_dm_snap_origin ; struct kernel_symbol const __ksymtab_dm_snap_origin = {(unsigned long )(& dm_snap_origin), (char const *)(& __kstrtab_dm_snap_origin)}; struct dm_dev *dm_snap_cow(struct dm_snapshot *s ) { { return (s->cow); } } static char const __kstrtab_dm_snap_cow[12U] = { 'd', 'm', '_', 's', 'n', 'a', 'p', '_', 'c', 'o', 'w', '\000'}; struct kernel_symbol const __ksymtab_dm_snap_cow ; struct kernel_symbol const __ksymtab_dm_snap_cow = {(unsigned long )(& dm_snap_cow), (char const *)(& __kstrtab_dm_snap_cow)}; static sector_t chunk_to_sector(struct dm_exception_store *store , chunk_t chunk ) { { return (chunk << (int )store->chunk_shift); } } static int bdev_equal(struct block_device *lhs , struct block_device *rhs ) { { return ((unsigned long )lhs == (unsigned long )rhs); } } static struct kmem_cache *exception_cache ; static struct kmem_cache *pending_cache ; static void init_tracked_chunk(struct bio *bio ) { struct dm_snap_tracked_chunk *c ; void *tmp ; { tmp = dm_per_bio_data(bio, 24UL); c = (struct dm_snap_tracked_chunk *)tmp; INIT_HLIST_NODE(& c->node); return; } } static bool is_bio_tracked(struct bio *bio ) { struct dm_snap_tracked_chunk *c ; void *tmp ; int tmp___0 ; { tmp = dm_per_bio_data(bio, 24UL); c = (struct dm_snap_tracked_chunk *)tmp; tmp___0 = hlist_unhashed((struct hlist_node const *)(& c->node)); return (tmp___0 == 0); } } static void track_chunk(struct dm_snapshot *s , struct bio *bio , chunk_t chunk ) { struct dm_snap_tracked_chunk *c ; void *tmp ; { tmp = dm_per_bio_data(bio, 24UL); c = (struct dm_snap_tracked_chunk *)tmp; c->chunk = chunk; spin_lock_irq(& s->tracked_chunk_lock); hlist_add_head(& c->node, (struct hlist_head *)(& s->tracked_chunk_hash) + (chunk & 15UL)); spin_unlock_irq(& s->tracked_chunk_lock); return; } } static void stop_tracking_chunk(struct dm_snapshot *s , struct bio *bio ) { struct dm_snap_tracked_chunk *c ; void *tmp ; unsigned long flags ; { tmp = dm_per_bio_data(bio, 24UL); c = (struct dm_snap_tracked_chunk *)tmp; ldv_spin_lock(); hlist_del(& c->node); spin_unlock_irqrestore(& s->tracked_chunk_lock, flags); return; } } static int __chunk_is_tracked(struct dm_snapshot *s , chunk_t chunk ) { struct dm_snap_tracked_chunk *c ; int found ; struct hlist_node *____ptr ; struct hlist_node const *__mptr ; struct dm_snap_tracked_chunk *tmp ; struct hlist_node *____ptr___0 ; struct hlist_node const *__mptr___0 ; struct dm_snap_tracked_chunk *tmp___0 ; { found = 0; spin_lock_irq(& s->tracked_chunk_lock); ____ptr = ((struct hlist_head *)(& s->tracked_chunk_hash) + (chunk & 15UL))->first; if ((unsigned long )____ptr != (unsigned long )((struct hlist_node *)0)) { __mptr = (struct hlist_node const *)____ptr; tmp = (struct dm_snap_tracked_chunk *)__mptr; } else { tmp = (struct dm_snap_tracked_chunk *)0; } c = tmp; goto ldv_34706; ldv_34705: ; if (c->chunk == chunk) { found = 1; goto ldv_34704; } else { } ____ptr___0 = c->node.next; if ((unsigned long )____ptr___0 != (unsigned long )((struct hlist_node *)0)) { __mptr___0 = (struct hlist_node const *)____ptr___0; tmp___0 = (struct dm_snap_tracked_chunk *)__mptr___0; } else { tmp___0 = (struct dm_snap_tracked_chunk *)0; } c = tmp___0; ldv_34706: ; if ((unsigned long )c != (unsigned long )((struct dm_snap_tracked_chunk *)0)) { goto ldv_34705; } else { } ldv_34704: spin_unlock_irq(& s->tracked_chunk_lock); return (found); } } static void __check_for_conflicting_io(struct dm_snapshot *s , chunk_t chunk ) { int tmp ; { goto ldv_34712; ldv_34711: msleep(1U); ldv_34712: tmp = __chunk_is_tracked(s, chunk); if (tmp != 0) { goto ldv_34711; } else { } return; } } static struct list_head *_origins ; static struct list_head *_dm_origins ; static struct rw_semaphore _origins_lock ; static wait_queue_head_t _pending_exceptions_done = {{{{{{0}}, 3735899821U, 4294967295U, (void *)-1, {0, {0, 0}, "_pending_exceptions_done.lock", 0, 0UL}}}}, {& _pending_exceptions_done.task_list, & _pending_exceptions_done.task_list}}; static spinlock_t _pending_exceptions_done_spinlock = {{{{{0}}, 3735899821U, 4294967295U, (void *)-1, {0, {0, 0}, "_pending_exceptions_done_spinlock", 0, 0UL}}}}; static uint64_t _pending_exceptions_done_count ; static int init_origin_hash(void) { int i ; void *tmp ; void *tmp___0 ; struct lock_class_key __key ; { tmp = kmalloc(4096UL, 208U); _origins = (struct list_head *)tmp; if ((unsigned long )_origins == (unsigned long )((struct list_head *)0)) { printk("\vdevice-mapper: snapshots: unable to allocate memory for _origins\n"); return (-12); } else { } i = 0; goto ldv_34736; ldv_34735: INIT_LIST_HEAD(_origins + (unsigned long )i); i = i + 1; ldv_34736: ; if (i <= 255) { goto ldv_34735; } else { } tmp___0 = kmalloc(4096UL, 208U); _dm_origins = (struct list_head *)tmp___0; if ((unsigned long )_dm_origins == (unsigned long )((struct list_head *)0)) { printk("\vdevice-mapper: snapshots: unable to allocate memory for _dm_origins\n"); kfree((void const *)_origins); return (-12); } else { } i = 0; goto ldv_34739; ldv_34738: INIT_LIST_HEAD(_dm_origins + (unsigned long )i); i = i + 1; ldv_34739: ; if (i <= 255) { goto ldv_34738; } else { } __init_rwsem(& _origins_lock, "&_origins_lock", & __key); return (0); } } static void exit_origin_hash(void) { { kfree((void const *)_origins); kfree((void const *)_dm_origins); return; } } static unsigned int origin_hash(struct block_device *bdev ) { { return (bdev->bd_dev & 255U); } } static struct origin *__lookup_origin(struct block_device *origin ) { struct list_head *ol ; struct origin *o ; unsigned int tmp ; struct list_head const *__mptr ; int tmp___0 ; struct list_head const *__mptr___0 ; { tmp = origin_hash(origin); ol = _origins + (unsigned long )tmp; __mptr = (struct list_head const *)ol->next; o = (struct origin *)__mptr + 0xfffffffffffffff8UL; goto ldv_34758; ldv_34757: tmp___0 = bdev_equal(o->bdev, origin); if (tmp___0 != 0) { return (o); } else { } __mptr___0 = (struct list_head const *)o->hash_list.next; o = (struct origin *)__mptr___0 + 0xfffffffffffffff8UL; ldv_34758: ; if ((unsigned long )(& o->hash_list) != (unsigned long )ol) { goto ldv_34757; } else { } return ((struct origin *)0); } } static void __insert_origin(struct origin *o ) { struct list_head *sl ; unsigned int tmp ; { tmp = origin_hash(o->bdev); sl = _origins + (unsigned long )tmp; list_add_tail(& o->hash_list, sl); return; } } static struct dm_origin *__lookup_dm_origin(struct block_device *origin ) { struct list_head *ol ; struct dm_origin *o ; unsigned int tmp ; struct list_head const *__mptr ; int tmp___0 ; struct list_head const *__mptr___0 ; { tmp = origin_hash(origin); ol = _dm_origins + (unsigned long )tmp; __mptr = (struct list_head const *)ol->next; o = (struct dm_origin *)__mptr + 0xffffffffffffffe8UL; goto ldv_34774; ldv_34773: tmp___0 = bdev_equal((o->dev)->bdev, origin); if (tmp___0 != 0) { return (o); } else { } __mptr___0 = (struct list_head const *)o->hash_list.next; o = (struct dm_origin *)__mptr___0 + 0xffffffffffffffe8UL; ldv_34774: ; if ((unsigned long )(& o->hash_list) != (unsigned long )ol) { goto ldv_34773; } else { } return ((struct dm_origin *)0); } } static void __insert_dm_origin(struct dm_origin *o ) { struct list_head *sl ; unsigned int tmp ; { tmp = origin_hash((o->dev)->bdev); sl = _dm_origins + (unsigned long )tmp; list_add_tail(& o->hash_list, sl); return; } } static void __remove_dm_origin(struct dm_origin *o ) { { list_del(& o->hash_list); return; } } static int __find_snapshots_sharing_cow(struct dm_snapshot *snap , struct dm_snapshot **snap_src , struct dm_snapshot **snap_dest , struct dm_snapshot **snap_merge ) { struct dm_snapshot *s ; struct origin *o ; int count ; int active ; struct list_head const *__mptr ; int tmp ; struct list_head const *__mptr___0 ; { count = 0; o = __lookup_origin((snap->origin)->bdev); if ((unsigned long )o == (unsigned long )((struct origin *)0)) { goto out; } else { } __mptr = (struct list_head const *)o->snapshots.next; s = (struct dm_snapshot *)__mptr + 0xffffffffffffff48UL; goto ldv_34800; ldv_34799: ; if ((unsigned long )((s->ti)->type)->name == (unsigned long )((char const *)(& dm_snapshot_merge_target_name)) && (unsigned long )snap_merge != (unsigned long )((struct dm_snapshot **)0)) { *snap_merge = s; } else { } tmp = bdev_equal((s->cow)->bdev, (snap->cow)->bdev); if (tmp == 0) { goto ldv_34798; } else { } down_read(& s->lock); active = s->active; up_read(& s->lock); if (active != 0) { if ((unsigned long )snap_src != (unsigned long )((struct dm_snapshot **)0)) { *snap_src = s; } else { } } else if ((unsigned long )snap_dest != (unsigned long )((struct dm_snapshot **)0)) { *snap_dest = s; } else { } count = count + 1; ldv_34798: __mptr___0 = (struct list_head const *)s->list.next; s = (struct dm_snapshot *)__mptr___0 + 0xffffffffffffff48UL; ldv_34800: ; if ((unsigned long )(& s->list) != (unsigned long )(& o->snapshots)) { goto ldv_34799; } else { } out: ; return (count); } } static int __validate_exception_handover(struct dm_snapshot *snap ) { struct dm_snapshot *snap_src ; struct dm_snapshot *snap_dest ; struct dm_snapshot *snap_merge ; int tmp ; { snap_src = (struct dm_snapshot *)0; snap_dest = (struct dm_snapshot *)0; snap_merge = (struct dm_snapshot *)0; tmp = __find_snapshots_sharing_cow(snap, & snap_src, & snap_dest, & snap_merge); if (tmp == 2 || (unsigned long )snap_dest != (unsigned long )((struct dm_snapshot *)0)) { (snap->ti)->error = (char *)"Snapshot cow pairing for exception table handover failed"; return (-22); } else { } if ((unsigned long )snap_src == (unsigned long )((struct dm_snapshot *)0)) { return (0); } else { } if ((unsigned long )((snap->ti)->type)->name != (unsigned long )((char const *)(& dm_snapshot_merge_target_name))) { return (1); } else { } if ((unsigned long )snap_merge != (unsigned long )((struct dm_snapshot *)0)) { (snap->ti)->error = (char *)"A snapshot is already merging."; return (-22); } else { } if ((unsigned long )((snap_src->store)->type)->prepare_merge == (unsigned long )((int (*)(struct dm_exception_store * , chunk_t * , chunk_t * ))0) || (unsigned long )((snap_src->store)->type)->commit_merge == (unsigned long )((int (*)(struct dm_exception_store * , int ))0)) { (snap->ti)->error = (char *)"Snapshot exception store does not support snapshot-merge."; return (-22); } else { } return (1); } } static void __insert_snapshot(struct origin *o , struct dm_snapshot *s ) { struct dm_snapshot *l ; struct list_head const *__mptr ; struct list_head const *__mptr___0 ; { __mptr = (struct list_head const *)o->snapshots.next; l = (struct dm_snapshot *)__mptr + 0xffffffffffffff48UL; goto ldv_34819; ldv_34818: ; if ((l->store)->chunk_size < (s->store)->chunk_size) { goto ldv_34817; } else { } __mptr___0 = (struct list_head const *)l->list.next; l = (struct dm_snapshot *)__mptr___0 + 0xffffffffffffff48UL; ldv_34819: ; if ((unsigned long )(& l->list) != (unsigned long )(& o->snapshots)) { goto ldv_34818; } else { } ldv_34817: list_add_tail(& s->list, & l->list); return; } } static int register_snapshot(struct dm_snapshot *snap ) { struct origin *o ; struct origin *new_o ; struct block_device *bdev ; int r ; void *tmp ; { new_o = (struct origin *)0; bdev = (snap->origin)->bdev; r = 0; tmp = kmalloc(40UL, 208U); new_o = (struct origin *)tmp; if ((unsigned long )new_o == (unsigned long )((struct origin *)0)) { return (-12); } else { } down_write(& _origins_lock); r = __validate_exception_handover(snap); if (r < 0) { kfree((void const *)new_o); goto out; } else { } o = __lookup_origin(bdev); if ((unsigned long )o != (unsigned long )((struct origin *)0)) { kfree((void const *)new_o); } else { o = new_o; INIT_LIST_HEAD(& o->snapshots); o->bdev = bdev; __insert_origin(o); } __insert_snapshot(o, snap); out: up_write(& _origins_lock); return (r); } } static void reregister_snapshot(struct dm_snapshot *s ) { struct block_device *bdev ; struct origin *tmp ; { bdev = (s->origin)->bdev; down_write(& _origins_lock); list_del(& s->list); tmp = __lookup_origin(bdev); __insert_snapshot(tmp, s); up_write(& _origins_lock); return; } } static void unregister_snapshot(struct dm_snapshot *s ) { struct origin *o ; int tmp ; { down_write(& _origins_lock); o = __lookup_origin((s->origin)->bdev); list_del(& s->list); if ((unsigned long )o != (unsigned long )((struct origin *)0)) { tmp = list_empty((struct list_head const *)(& o->snapshots)); if (tmp != 0) { list_del(& o->hash_list); kfree((void const *)o); } else { } } else { } up_write(& _origins_lock); return; } } static int dm_exception_table_init(struct dm_exception_table *et , uint32_t size , unsigned int hash_shift ) { unsigned int i ; void *tmp ; { et->hash_shift = hash_shift; et->hash_mask = size - 1U; tmp = dm_vcalloc((unsigned long )size, 16UL); et->table = (struct list_head *)tmp; if ((unsigned long )et->table == (unsigned long )((struct list_head *)0)) { return (-12); } else { } i = 0U; goto ldv_34843; ldv_34842: INIT_LIST_HEAD(et->table + (unsigned long )i); i = i + 1U; ldv_34843: ; if (i < size) { goto ldv_34842; } else { } return (0); } } static void dm_exception_table_exit(struct dm_exception_table *et , struct kmem_cache *mem ) { struct list_head *slot ; struct dm_exception *ex ; struct dm_exception *next ; int i ; int size ; struct list_head const *__mptr ; struct list_head const *__mptr___0 ; struct list_head const *__mptr___1 ; { size = (int )(et->hash_mask + 1U); i = 0; goto ldv_34864; ldv_34863: slot = et->table + (unsigned long )i; __mptr = (struct list_head const *)slot->next; ex = (struct dm_exception *)__mptr; __mptr___0 = (struct list_head const *)ex->hash_list.next; next = (struct dm_exception *)__mptr___0; goto ldv_34861; ldv_34860: kmem_cache_free(mem, (void *)ex); ex = next; __mptr___1 = (struct list_head const *)next->hash_list.next; next = (struct dm_exception *)__mptr___1; ldv_34861: ; if ((unsigned long )(& ex->hash_list) != (unsigned long )slot) { goto ldv_34860; } else { } i = i + 1; ldv_34864: ; if (i < size) { goto ldv_34863; } else { } vfree((void const *)et->table); return; } } static uint32_t exception_hash(struct dm_exception_table *et , chunk_t chunk ) { { return ((uint32_t )(chunk >> (int )et->hash_shift) & et->hash_mask); } } static void dm_remove_exception(struct dm_exception *e ) { { list_del(& e->hash_list); return; } } static struct dm_exception *dm_lookup_exception(struct dm_exception_table *et , chunk_t chunk ) { struct list_head *slot ; struct dm_exception *e ; uint32_t tmp ; struct list_head const *__mptr ; unsigned int tmp___0 ; struct list_head const *__mptr___0 ; { tmp = exception_hash(et, chunk); slot = et->table + (unsigned long )tmp; __mptr = (struct list_head const *)slot->next; e = (struct dm_exception *)__mptr; goto ldv_34884; ldv_34883: ; if (e->old_chunk <= chunk) { tmp___0 = dm_consecutive_chunk_count(e); if (e->old_chunk + (chunk_t )tmp___0 >= chunk) { return (e); } else { } } else { } __mptr___0 = (struct list_head const *)e->hash_list.next; e = (struct dm_exception *)__mptr___0; ldv_34884: ; if ((unsigned long )(& e->hash_list) != (unsigned long )slot) { goto ldv_34883; } else { } return ((struct dm_exception *)0); } } static struct dm_exception *alloc_completed_exception(gfp_t gfp ) { struct dm_exception *e ; void *tmp ; void *tmp___0 ; { tmp = ldv_kmem_cache_alloc_23(exception_cache, gfp); e = (struct dm_exception *)tmp; if ((unsigned long )e == (unsigned long )((struct dm_exception *)0) && gfp == 16U) { tmp___0 = ldv_kmem_cache_alloc_24(exception_cache, 32U); e = (struct dm_exception *)tmp___0; } else { } return (e); } } static void free_completed_exception(struct dm_exception *e ) { { kmem_cache_free(exception_cache, (void *)e); return; } } static struct dm_snap_pending_exception *alloc_pending_exception(struct dm_snapshot *s ) { struct dm_snap_pending_exception *pe ; void *tmp ; { tmp = ldv_mempool_alloc_25(s->pending_pool, 16U); pe = (struct dm_snap_pending_exception *)tmp; atomic_inc(& s->pending_exceptions_count); pe->snap = s; return (pe); } } static void free_pending_exception(struct dm_snap_pending_exception *pe ) { struct dm_snapshot *s ; { s = pe->snap; mempool_free((void *)pe, s->pending_pool); __asm__ volatile ("": : : "memory"); atomic_dec(& s->pending_exceptions_count); return; } } static void dm_insert_exception(struct dm_exception_table *eh , struct dm_exception *new_e ) { struct list_head *l ; struct dm_exception *e ; uint32_t tmp ; struct list_head const *__mptr ; unsigned int tmp___0 ; chunk_t tmp___1 ; unsigned int tmp___2 ; chunk_t tmp___3 ; struct list_head const *__mptr___0 ; { e = (struct dm_exception *)0; tmp = exception_hash(eh, new_e->old_chunk); l = eh->table + (unsigned long )tmp; if (eh->hash_shift == 0U) { goto out; } else { } __mptr = (struct list_head const *)l->prev; e = (struct dm_exception *)__mptr; goto ldv_34914; ldv_34913: tmp___0 = dm_consecutive_chunk_count(e); if (new_e->old_chunk == (e->old_chunk + (chunk_t )tmp___0) + 1UL) { tmp___1 = dm_chunk_number(e->new_chunk); tmp___2 = dm_consecutive_chunk_count(e); if (new_e->new_chunk == (tmp___1 + (chunk_t )tmp___2) + 1UL) { dm_consecutive_chunk_count_inc(e); free_completed_exception(new_e); return; } else { } } else { } if (new_e->old_chunk == e->old_chunk - 1UL) { tmp___3 = dm_chunk_number(e->new_chunk); if (new_e->new_chunk == tmp___3 - 1UL) { dm_consecutive_chunk_count_inc(e); e->old_chunk = e->old_chunk - 1UL; e->new_chunk = e->new_chunk - 1UL; free_completed_exception(new_e); return; } else { } } else { } if (new_e->old_chunk > e->old_chunk) { goto ldv_34912; } else { } __mptr___0 = (struct list_head const *)e->hash_list.prev; e = (struct dm_exception *)__mptr___0; ldv_34914: ; if ((unsigned long )(& e->hash_list) != (unsigned long )l) { goto ldv_34913; } else { } ldv_34912: ; out: list_add(& new_e->hash_list, (unsigned long )e != (unsigned long )((struct dm_exception *)0) ? & e->hash_list : l); return; } } static int dm_add_exception(void *context , chunk_t old , chunk_t new ) { struct dm_snapshot *s ; struct dm_exception *e ; { s = (struct dm_snapshot *)context; e = alloc_completed_exception(208U); if ((unsigned long )e == (unsigned long )((struct dm_exception *)0)) { return (-12); } else { } e->old_chunk = old; e->new_chunk = new; dm_insert_exception(& s->complete, e); return (0); } } static uint32_t __minimum_chunk_size(struct origin *o ) { struct dm_snapshot *snap ; unsigned int chunk_size ; struct list_head const *__mptr ; unsigned int __x ; unsigned int __y ; unsigned int _min1 ; unsigned int _min2 ; unsigned int tmp ; unsigned int tmp___0 ; struct list_head const *__mptr___0 ; { chunk_size = 0U; if ((unsigned long )o != (unsigned long )((struct origin *)0)) { __mptr = (struct list_head const *)o->snapshots.next; snap = (struct dm_snapshot *)__mptr + 0xffffffffffffff48UL; goto ldv_34938; ldv_34937: __x = chunk_size; __y = (snap->store)->chunk_size; if (__x != 0U) { if (__y != 0U) { _min1 = __x; _min2 = __y; tmp = _min1 < _min2 ? _min1 : _min2; } else { tmp = __x; } tmp___0 = tmp; } else { tmp___0 = __y; } chunk_size = tmp___0; __mptr___0 = (struct list_head const *)snap->list.next; snap = (struct dm_snapshot *)__mptr___0 + 0xffffffffffffff48UL; ldv_34938: ; if ((unsigned long )(& snap->list) != (unsigned long )(& o->snapshots)) { goto ldv_34937; } else { } } else { } return (chunk_size); } } static int calc_max_buckets(void) { unsigned long mem ; { mem = 2097152UL; mem = mem / 16UL; return ((int )mem); } } static int init_hash_tables(struct dm_snapshot *s ) { sector_t hash_size ; sector_t cow_dev_size ; sector_t max_buckets ; int tmp ; sector_t _min1 ; sector_t _min2 ; int tmp___0 ; int tmp___1 ; { cow_dev_size = get_dev_size((s->cow)->bdev); tmp = calc_max_buckets(); max_buckets = (sector_t )tmp; hash_size = cow_dev_size >> (int )(s->store)->chunk_shift; _min1 = hash_size; _min2 = max_buckets; hash_size = _min1 < _min2 ? _min1 : _min2; if (hash_size <= 63UL) { hash_size = 64UL; } else { } hash_size = __rounddown_pow_of_two(hash_size); tmp___0 = dm_exception_table_init(& s->complete, (uint32_t )hash_size, 8U); if (tmp___0 != 0) { return (-12); } else { } hash_size = hash_size >> 3; if (hash_size <= 63UL) { hash_size = 64UL; } else { } tmp___1 = dm_exception_table_init(& s->pending, (uint32_t )hash_size, 0U); if (tmp___1 != 0) { dm_exception_table_exit(& s->complete, exception_cache); return (-12); } else { } return (0); } } static void merge_shutdown(struct dm_snapshot *s ) { { clear_bit_unlock(0L, (unsigned long volatile *)(& s->state_bits)); __asm__ volatile ("": : : "memory"); wake_up_bit((void *)(& s->state_bits), 0); return; } } static struct bio *__release_queued_bios_after_merge(struct dm_snapshot *s ) { struct bio *tmp ; { s->first_merging_chunk = 0UL; s->num_merging_chunks = 0; tmp = bio_list_get(& s->bios_queued_during_merge); return (tmp); } } static int __remove_single_exception_chunk(struct dm_snapshot *s , chunk_t old_chunk ) { struct dm_exception *e ; unsigned int tmp ; unsigned int tmp___0 ; unsigned int tmp___1 ; { e = dm_lookup_exception(& s->complete, old_chunk); if ((unsigned long )e == (unsigned long )((struct dm_exception *)0)) { printk("\vdevice-mapper: snapshots: Corruption detected: exception for block %llu is on disk but not in memory\n", (unsigned long long )old_chunk); return (-22); } else { } tmp = dm_consecutive_chunk_count(e); if (tmp == 0U) { dm_remove_exception(e); free_completed_exception(e); return (0); } else { } if (e->old_chunk == old_chunk) { e->old_chunk = e->old_chunk + 1UL; e->new_chunk = e->new_chunk + 1UL; } else { tmp___1 = dm_consecutive_chunk_count(e); if (e->old_chunk + (chunk_t )tmp___1 != old_chunk) { tmp___0 = dm_consecutive_chunk_count(e); printk("\vdevice-mapper: snapshots: Attempt to merge block %llu from the middle of a chunk range [%llu - %llu]\n", (unsigned long long )old_chunk, (unsigned long long )e->old_chunk, (unsigned long long )e->old_chunk + (unsigned long long )tmp___0); return (-22); } else { } } dm_consecutive_chunk_count_dec(e); return (0); } } static void flush_bios(struct bio *bio ) ; static int remove_single_exception_chunk(struct dm_snapshot *s ) { struct bio *b ; int r ; chunk_t old_chunk ; chunk_t tmp ; { b = (struct bio *)0; old_chunk = (s->first_merging_chunk + (chunk_t )s->num_merging_chunks) - 1UL; down_write(& s->lock); ldv_34973: r = __remove_single_exception_chunk(s, old_chunk); if (r != 0) { goto out; } else { } tmp = old_chunk; old_chunk = old_chunk - 1UL; if (tmp > s->first_merging_chunk) { goto ldv_34973; } else { } b = __release_queued_bios_after_merge(s); out: up_write(& s->lock); if ((unsigned long )b != (unsigned long )((struct bio *)0)) { flush_bios(b); } else { } return (r); } } static int origin_write_extent(struct dm_snapshot *merging_snap , sector_t sector , unsigned int size ) ; static void merge_callback(int read_err , unsigned long write_err , void *context ) ; static uint64_t read_pending_exceptions_done_count(void) { uint64_t pending_exceptions_done ; { spin_lock(& _pending_exceptions_done_spinlock); pending_exceptions_done = _pending_exceptions_done_count; spin_unlock(& _pending_exceptions_done_spinlock); return (pending_exceptions_done); } } static void increment_pending_exceptions_done_count(void) { { spin_lock(& _pending_exceptions_done_spinlock); _pending_exceptions_done_count = _pending_exceptions_done_count + 1ULL; spin_unlock(& _pending_exceptions_done_spinlock); __wake_up(& _pending_exceptions_done, 3U, 0, (void *)0); return; } } static void snapshot_merge_next_chunks(struct dm_snapshot *s ) { int i ; int linear_chunks ; chunk_t old_chunk ; chunk_t new_chunk ; struct dm_io_region src ; struct dm_io_region dest ; sector_t io_size ; uint64_t previous_count ; int tmp ; long tmp___0 ; int tmp___1 ; long tmp___2 ; sector_t _min1 ; sector_t _min2 ; sector_t tmp___3 ; uint64_t tmp___4 ; wait_queue_t __wait ; long __ret ; long __int ; long tmp___5 ; uint64_t tmp___6 ; int tmp___7 ; { tmp = constant_test_bit(0L, (unsigned long const volatile *)(& s->state_bits)); tmp___0 = ldv__builtin_expect(tmp == 0, 0L); if (tmp___0 != 0L) { __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/1386/dscv_tempdir/dscv/ri/43_2a/drivers/md/dm-snap.c"), "i" (962), "i" (12UL)); ldv_35001: ; goto ldv_35001; } else { } tmp___1 = constant_test_bit(1L, (unsigned long const volatile *)(& s->state_bits)); tmp___2 = ldv__builtin_expect(tmp___1 != 0, 0L); if (tmp___2 != 0L) { goto shut; } else { } if (s->valid == 0) { printk("\vdevice-mapper: snapshots: Snapshot is invalid: can\'t merge\n"); goto shut; } else { } linear_chunks = (*(((s->store)->type)->prepare_merge))(s->store, & old_chunk, & new_chunk); if (linear_chunks <= 0) { if (linear_chunks < 0) { printk("\vdevice-mapper: snapshots: Read error in exception store: shutting down merge\n"); down_write(& s->lock); s->merge_failed = 1; up_write(& s->lock); } else { } goto shut; } else { } old_chunk = (old_chunk - (chunk_t )linear_chunks) + 1UL; new_chunk = (new_chunk - (chunk_t )linear_chunks) + 1UL; io_size = (sector_t )((s->store)->chunk_size * (unsigned int )linear_chunks); dest.bdev = (s->origin)->bdev; dest.sector = chunk_to_sector(s->store, old_chunk); _min1 = io_size; tmp___3 = get_dev_size(dest.bdev); _min2 = tmp___3 - dest.sector; dest.count = _min1 < _min2 ? _min1 : _min2; src.bdev = (s->cow)->bdev; src.sector = chunk_to_sector(s->store, new_chunk); src.count = dest.count; previous_count = read_pending_exceptions_done_count(); goto ldv_35015; ldv_35014: __might_sleep("/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/1386/dscv_tempdir/dscv/ri/43_2a/drivers/md/dm-snap.c", 1018, 0); tmp___4 = read_pending_exceptions_done_count(); if (tmp___4 != previous_count) { goto ldv_35006; } else { } __ret = 0L; INIT_LIST_HEAD(& __wait.task_list); __wait.flags = 0U; ldv_35012: tmp___5 = prepare_to_wait_event(& _pending_exceptions_done, & __wait, 2); __int = tmp___5; tmp___6 = read_pending_exceptions_done_count(); if (tmp___6 != previous_count) { goto ldv_35011; } else { } schedule(); goto ldv_35012; ldv_35011: finish_wait(& _pending_exceptions_done, & __wait); ldv_35006: previous_count = read_pending_exceptions_done_count(); ldv_35015: tmp___7 = origin_write_extent(s, dest.sector, (unsigned int )io_size); if (tmp___7 != 0) { goto ldv_35014; } else { } down_write(& s->lock); s->first_merging_chunk = old_chunk; s->num_merging_chunks = linear_chunks; up_write(& s->lock); i = 0; goto ldv_35018; ldv_35017: __check_for_conflicting_io(s, (chunk_t )i + old_chunk); i = i + 1; ldv_35018: ; if (i < linear_chunks) { goto ldv_35017; } else { } dm_kcopyd_copy(s->kcopyd_client, & src, 1U, & dest, 0U, & merge_callback, (void *)s); return; shut: merge_shutdown(s); return; } } static void error_bios(struct bio *bio ) ; static void merge_callback(int read_err , unsigned long write_err , void *context ) { struct dm_snapshot *s ; struct bio *b ; int tmp ; int tmp___0 ; { s = (struct dm_snapshot *)context; b = (struct bio *)0; if (read_err != 0 || write_err != 0UL) { if (read_err != 0) { printk("\vdevice-mapper: snapshots: Read error: shutting down merge.\n"); } else { printk("\vdevice-mapper: snapshots: Write error: shutting down merge.\n"); } goto shut; } else { } tmp = (*(((s->store)->type)->commit_merge))(s->store, s->num_merging_chunks); if (tmp < 0) { printk("\vdevice-mapper: snapshots: Write error in exception store: shutting down merge\n"); goto shut; } else { } tmp___0 = remove_single_exception_chunk(s); if (tmp___0 < 0) { goto shut; } else { } snapshot_merge_next_chunks(s); return; shut: down_write(& s->lock); s->merge_failed = 1; b = __release_queued_bios_after_merge(s); up_write(& s->lock); error_bios(b); merge_shutdown(s); return; } } static void start_merge(struct dm_snapshot *s ) { int tmp ; { tmp = test_and_set_bit(0L, (unsigned long volatile *)(& s->state_bits)); if (tmp == 0) { snapshot_merge_next_chunks(s); } else { } return; } } static void stop_merge(struct dm_snapshot *s ) { { set_bit(1L, (unsigned long volatile *)(& s->state_bits)); wait_on_bit(& s->state_bits, 0, 2U); clear_bit(1L, (unsigned long volatile *)(& s->state_bits)); return; } } static int snapshot_ctr(struct dm_target *ti , unsigned int argc , char **argv ) { struct dm_snapshot *s ; int i ; int r ; char *origin_path ; char *cow_path ; unsigned int args_used ; unsigned int num_flush_bios ; fmode_t origin_mode ; void *tmp ; fmode_t tmp___0 ; struct lock_class_key __key ; struct lock_class_key __key___0 ; int tmp___1 ; long tmp___2 ; bool tmp___3 ; struct lock_class_key __key___1 ; { r = -22; num_flush_bios = 1U; origin_mode = 1U; if (argc != 4U) { ti->error = (char *)"requires exactly 4 arguments"; r = -22; goto bad; } else { } if ((unsigned long )(ti->type)->name == (unsigned long )((char const *)(& dm_snapshot_merge_target_name))) { num_flush_bios = 2U; origin_mode = 2U; } else { } tmp = kmalloc(616UL, 208U); s = (struct dm_snapshot *)tmp; if ((unsigned long )s == (unsigned long )((struct dm_snapshot *)0)) { ti->error = (char *)"Cannot allocate private snapshot structure"; r = -12; goto bad; } else { } origin_path = *argv; argv = argv + 1; argc = argc - 1U; r = dm_get_device(ti, (char const *)origin_path, origin_mode, & s->origin); if (r != 0) { ti->error = (char *)"Cannot get origin device"; goto bad_origin; } else { } cow_path = *argv; argv = argv + 1; argc = argc - 1U; tmp___0 = dm_table_get_mode(ti->table); r = dm_get_device(ti, (char const *)cow_path, tmp___0, & s->cow); if (r != 0) { ti->error = (char *)"Cannot get COW device"; goto bad_cow; } else { } r = dm_exception_store_create(ti, (int )argc, argv, s, & args_used, & s->store); if (r != 0) { ti->error = (char *)"Couldn\'t create exception store"; r = -22; goto bad_store; } else { } argv = argv + (unsigned long )args_used; argc = argc - args_used; s->ti = ti; s->valid = 1; s->active = 0; atomic_set(& s->pending_exceptions_count, 0); s->exception_start_sequence = 0UL; s->exception_complete_sequence = 0UL; INIT_LIST_HEAD(& s->out_of_order_list); __init_rwsem(& s->lock, "&s->lock", & __key); INIT_LIST_HEAD(& s->list); spinlock_check(& s->pe_lock); __raw_spin_lock_init(& s->pe_lock.__annonCompField18.rlock, "&(&s->pe_lock)->rlock", & __key___0); s->state_bits = 0UL; s->merge_failed = 0; s->first_merging_chunk = 0UL; s->num_merging_chunks = 0; bio_list_init(& s->bios_queued_during_merge); tmp___1 = init_hash_tables(s); if (tmp___1 != 0) { ti->error = (char *)"Unable to allocate hash table space"; r = -12; goto bad_hash_tables; } else { } s->kcopyd_client = dm_kcopyd_client_create(& dm_kcopyd_throttle); tmp___3 = IS_ERR((void const *)s->kcopyd_client); if ((int )tmp___3) { tmp___2 = PTR_ERR((void const *)s->kcopyd_client); r = (int )tmp___2; ti->error = (char *)"Could not create kcopyd client"; goto bad_kcopyd; } else { } s->pending_pool = mempool_create_slab_pool(256, pending_cache); if ((unsigned long )s->pending_pool == (unsigned long )((mempool_t *)0)) { ti->error = (char *)"Could not allocate mempool for pending exceptions"; r = -12; goto bad_pending_pool; } else { } i = 0; goto ldv_35059; ldv_35058: ((struct hlist_head *)(& s->tracked_chunk_hash) + (unsigned long )i)->first = (struct hlist_node *)0; i = i + 1; ldv_35059: ; if (i <= 15) { goto ldv_35058; } else { } spinlock_check(& s->tracked_chunk_lock); __raw_spin_lock_init(& s->tracked_chunk_lock.__annonCompField18.rlock, "&(&s->tracked_chunk_lock)->rlock", & __key___1); ti->private = (void *)s; ti->num_flush_bios = num_flush_bios; ti->per_bio_data_size = 24U; r = register_snapshot(s); if (r == -12) { ti->error = (char *)"Snapshot origin struct allocation failed"; goto bad_load_and_register; } else if (r < 0) { goto bad_load_and_register; } else { } if (r > 0) { (s->store)->chunk_size = 0U; return (0); } else { } r = (*(((s->store)->type)->read_metadata))(s->store, & dm_add_exception, (void *)s); if (r < 0) { ti->error = (char *)"Failed to read snapshot metadata"; goto bad_read_metadata; } else if (r > 0) { s->valid = 0; printk("\fdevice-mapper: snapshots: Snapshot is marked invalid.\n"); } else { } if ((s->store)->chunk_size == 0U) { ti->error = (char *)"Chunk size not set"; goto bad_read_metadata; } else { } r = dm_set_target_max_io_len(ti, (sector_t )(s->store)->chunk_size); if (r != 0) { goto bad_read_metadata; } else { } return (0); bad_read_metadata: unregister_snapshot(s); bad_load_and_register: mempool_destroy(s->pending_pool); bad_pending_pool: dm_kcopyd_client_destroy(s->kcopyd_client); bad_kcopyd: dm_exception_table_exit(& s->pending, pending_cache); dm_exception_table_exit(& s->complete, exception_cache); bad_hash_tables: dm_exception_store_destroy(s->store); bad_store: dm_put_device(ti, s->cow); bad_cow: dm_put_device(ti, s->origin); bad_origin: kfree((void const *)s); bad: ; return (r); } } static void __free_exceptions(struct dm_snapshot *s ) { { dm_kcopyd_client_destroy(s->kcopyd_client); s->kcopyd_client = (struct dm_kcopyd_client *)0; dm_exception_table_exit(& s->pending, pending_cache); dm_exception_table_exit(& s->complete, exception_cache); return; } } static void __handover_exceptions(struct dm_snapshot *snap_src , struct dm_snapshot *snap_dest ) { union __anonunion_u_268 u ; { u.table_swap = snap_dest->complete; snap_dest->complete = snap_src->complete; snap_src->complete = u.table_swap; u.store_swap = snap_dest->store; snap_dest->store = snap_src->store; snap_src->store = u.store_swap; (snap_dest->store)->snap = snap_dest; (snap_src->store)->snap = snap_src; (snap_dest->ti)->max_io_len = (snap_dest->store)->chunk_size; snap_dest->valid = snap_src->valid; snap_src->valid = 0; return; } } static void snapshot_dtr(struct dm_target *ti ) { int i ; struct dm_snapshot *s ; struct dm_snapshot *snap_src ; struct dm_snapshot *snap_dest ; int tmp ; int tmp___0 ; long tmp___1 ; { s = (struct dm_snapshot *)ti->private; snap_src = (struct dm_snapshot *)0; snap_dest = (struct dm_snapshot *)0; down_read(& _origins_lock); __find_snapshots_sharing_cow(s, & snap_src, & snap_dest, (struct dm_snapshot **)0); if (((unsigned long )snap_src != (unsigned long )((struct dm_snapshot *)0) && (unsigned long )snap_dest != (unsigned long )((struct dm_snapshot *)0)) && (unsigned long )s == (unsigned long )snap_src) { down_write(& snap_dest->lock); snap_dest->valid = 0; up_write(& snap_dest->lock); printk("\vdevice-mapper: snapshots: Cancelling snapshot handover.\n"); } else { } up_read(& _origins_lock); if ((unsigned long )(ti->type)->name == (unsigned long )((char const *)(& dm_snapshot_merge_target_name))) { stop_merge(s); } else { } unregister_snapshot(s); goto ldv_35083; ldv_35082: msleep(1U); ldv_35083: tmp = atomic_read((atomic_t const *)(& s->pending_exceptions_count)); if (tmp != 0) { goto ldv_35082; } else { } __asm__ volatile ("mfence": : : "memory"); i = 0; goto ldv_35087; ldv_35086: tmp___0 = hlist_empty((struct hlist_head const *)(& s->tracked_chunk_hash) + (unsigned long )i); tmp___1 = ldv__builtin_expect(tmp___0 == 0, 0L); if (tmp___1 != 0L) { __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/1386/dscv_tempdir/dscv/ri/43_2a/drivers/md/dm-snap.c"), "i" (1347), "i" (12UL)); ldv_35085: ; goto ldv_35085; } else { } i = i + 1; ldv_35087: ; if (i <= 15) { goto ldv_35086; } else { } __free_exceptions(s); mempool_destroy(s->pending_pool); dm_exception_store_destroy(s->store); dm_put_device(ti, s->cow); dm_put_device(ti, s->origin); kfree((void const *)s); return; } } static void flush_bios(struct bio *bio ) { struct bio *n ; { goto ldv_35094; ldv_35093: n = bio->bi_next; bio->bi_next = (struct bio *)0; generic_make_request(bio); bio = n; ldv_35094: ; if ((unsigned long )bio != (unsigned long )((struct bio *)0)) { goto ldv_35093; } else { } return; } } static int do_origin(struct dm_dev *origin , struct bio *bio ) ; static void retry_origin_bios(struct dm_snapshot *s , struct bio *bio ) { struct bio *n ; int r ; { goto ldv_35106; ldv_35105: n = bio->bi_next; bio->bi_next = (struct bio *)0; r = do_origin(s->origin, bio); if (r == 1) { generic_make_request(bio); } else { } bio = n; ldv_35106: ; if ((unsigned long )bio != (unsigned long )((struct bio *)0)) { goto ldv_35105; } else { } return; } } static void error_bios(struct bio *bio ) { struct bio *n ; { goto ldv_35113; ldv_35112: n = bio->bi_next; bio->bi_next = (struct bio *)0; bio_endio(bio, -5); bio = n; ldv_35113: ; if ((unsigned long )bio != (unsigned long )((struct bio *)0)) { goto ldv_35112; } else { } return; } } static void __invalidate_snapshot(struct dm_snapshot *s , int err ) { { if (s->valid == 0) { return; } else { } if (err == -5) { printk("\vdevice-mapper: snapshots: Invalidating snapshot: Error reading/writing.\n"); } else if (err == -12) { printk("\vdevice-mapper: snapshots: Invalidating snapshot: Unable to allocate exception.\n"); } else { } if ((unsigned long )((s->store)->type)->drop_snapshot != (unsigned long )((void (*)(struct dm_exception_store * ))0)) { (*(((s->store)->type)->drop_snapshot))(s->store); } else { } s->valid = 0; dm_table_event((s->ti)->table); return; } } static void pending_complete(struct dm_snap_pending_exception *pe , int success ) { struct dm_exception *e ; struct dm_snapshot *s ; struct bio *origin_bios ; struct bio *snapshot_bios ; struct bio *full_bio ; int error ; { s = pe->snap; origin_bios = (struct bio *)0; snapshot_bios = (struct bio *)0; full_bio = (struct bio *)0; error = 0; if (success == 0) { down_write(& s->lock); __invalidate_snapshot(s, -5); error = 1; goto out; } else { } e = alloc_completed_exception(16U); if ((unsigned long )e == (unsigned long )((struct dm_exception *)0)) { down_write(& s->lock); __invalidate_snapshot(s, -12); error = 1; goto out; } else { } *e = pe->e; down_write(& s->lock); if (s->valid == 0) { free_completed_exception(e); error = 1; goto out; } else { } __check_for_conflicting_io(s, pe->e.old_chunk); dm_insert_exception(& s->complete, e); out: dm_remove_exception(& pe->e); snapshot_bios = bio_list_get(& pe->snapshot_bios); origin_bios = bio_list_get(& pe->origin_bios); full_bio = pe->full_bio; if ((unsigned long )full_bio != (unsigned long )((struct bio *)0)) { full_bio->bi_end_io = pe->full_bio_end_io; full_bio->bi_private = pe->full_bio_private; } else { } increment_pending_exceptions_done_count(); up_write(& s->lock); if (error != 0) { if ((unsigned long )full_bio != (unsigned long )((struct bio *)0)) { bio_endio(full_bio, -5); } else { } error_bios(snapshot_bios); } else { if ((unsigned long )full_bio != (unsigned long )((struct bio *)0)) { bio_endio(full_bio, 0); } else { } flush_bios(snapshot_bios); } retry_origin_bios(s, origin_bios); free_pending_exception(pe); return; } } static void commit_callback(void *context , int success ) { struct dm_snap_pending_exception *pe ; { pe = (struct dm_snap_pending_exception *)context; pending_complete(pe, success); return; } } static void complete_exception(struct dm_snap_pending_exception *pe ) { struct dm_snapshot *s ; long tmp ; { s = pe->snap; tmp = ldv__builtin_expect(pe->copy_error != 0, 0L); if (tmp != 0L) { pending_complete(pe, 0); } else { (*(((s->store)->type)->commit_exception))(s->store, & pe->e, & commit_callback, (void *)pe); } return; } } static void copy_callback(int read_err , unsigned long write_err , void *context ) { struct dm_snap_pending_exception *pe ; struct dm_snapshot *s ; struct list_head const *__mptr ; int tmp ; struct list_head *lh ; struct dm_snap_pending_exception *pe2 ; struct list_head const *__mptr___0 ; { pe = (struct dm_snap_pending_exception *)context; s = pe->snap; pe->copy_error = read_err != 0 || write_err != 0UL; if (pe->exception_sequence == s->exception_complete_sequence) { s->exception_complete_sequence = s->exception_complete_sequence + 1UL; complete_exception(pe); goto ldv_35150; ldv_35149: __mptr = (struct list_head const *)s->out_of_order_list.next; pe = (struct dm_snap_pending_exception *)__mptr + 0xffffffffffffffa8UL; if (pe->exception_sequence != s->exception_complete_sequence) { goto ldv_35148; } else { } s->exception_complete_sequence = s->exception_complete_sequence + 1UL; list_del(& pe->out_of_order_entry); complete_exception(pe); ldv_35150: tmp = list_empty((struct list_head const *)(& s->out_of_order_list)); if (tmp == 0) { goto ldv_35149; } else { } ldv_35148: ; } else { lh = s->out_of_order_list.prev; goto ldv_35157; ldv_35156: __mptr___0 = (struct list_head const *)lh; pe2 = (struct dm_snap_pending_exception *)__mptr___0 + 0xffffffffffffffa8UL; if (pe2->exception_sequence < pe->exception_sequence) { goto ldv_35155; } else { } lh = lh->prev; ldv_35157: ; if ((unsigned long )(& s->out_of_order_list) != (unsigned long )lh) { goto ldv_35156; } else { } ldv_35155: list_add(& pe->out_of_order_entry, lh); } return; } } static void start_copy(struct dm_snap_pending_exception *pe ) { struct dm_snapshot *s ; struct dm_io_region src ; struct dm_io_region dest ; struct block_device *bdev ; sector_t dev_size ; unsigned long _min1 ; sector_t _min2 ; { s = pe->snap; bdev = (s->origin)->bdev; dev_size = get_dev_size(bdev); src.bdev = bdev; src.sector = chunk_to_sector(s->store, pe->e.old_chunk); _min1 = (unsigned long )(s->store)->chunk_size; _min2 = dev_size - src.sector; src.count = _min1 < _min2 ? _min1 : _min2; dest.bdev = (s->cow)->bdev; dest.sector = chunk_to_sector(s->store, pe->e.new_chunk); dest.count = src.count; dm_kcopyd_copy(s->kcopyd_client, & src, 1U, & dest, 0U, & copy_callback, (void *)pe); return; } } static void full_bio_end_io(struct bio *bio , int error ) { void *callback_data ; { callback_data = bio->bi_private; dm_kcopyd_do_callback(callback_data, 0, error != 0); return; } } static void start_full_bio(struct dm_snap_pending_exception *pe , struct bio *bio ) { struct dm_snapshot *s ; void *callback_data ; { s = pe->snap; pe->full_bio = bio; pe->full_bio_end_io = bio->bi_end_io; pe->full_bio_private = bio->bi_private; callback_data = dm_kcopyd_prepare_callback(s->kcopyd_client, & copy_callback, (void *)pe); bio->bi_end_io = & full_bio_end_io; bio->bi_private = callback_data; generic_make_request(bio); return; } } static struct dm_snap_pending_exception *__lookup_pending_exception(struct dm_snapshot *s , chunk_t chunk ) { struct dm_exception *e ; struct dm_exception *tmp ; struct dm_exception const *__mptr ; { tmp = dm_lookup_exception(& s->pending, chunk); e = tmp; if ((unsigned long )e == (unsigned long )((struct dm_exception *)0)) { return ((struct dm_snap_pending_exception *)0); } else { } __mptr = (struct dm_exception const *)e; return ((struct dm_snap_pending_exception *)__mptr); } } static struct dm_snap_pending_exception *__find_pending_exception(struct dm_snapshot *s , struct dm_snap_pending_exception *pe , chunk_t chunk ) { struct dm_snap_pending_exception *pe2 ; int tmp ; sector_t tmp___0 ; { pe2 = __lookup_pending_exception(s, chunk); if ((unsigned long )pe2 != (unsigned long )((struct dm_snap_pending_exception *)0)) { free_pending_exception(pe); return (pe2); } else { } pe->e.old_chunk = chunk; bio_list_init(& pe->origin_bios); bio_list_init(& pe->snapshot_bios); pe->started = 0; pe->full_bio = (struct bio *)0; tmp = (*(((s->store)->type)->prepare_exception))(s->store, & pe->e); if (tmp != 0) { free_pending_exception(pe); return ((struct dm_snap_pending_exception *)0); } else { } tmp___0 = s->exception_start_sequence; s->exception_start_sequence = s->exception_start_sequence + 1UL; pe->exception_sequence = tmp___0; dm_insert_exception(& s->pending, & pe->e); return (pe); } } static void remap_exception(struct dm_snapshot *s , struct dm_exception *e , struct bio *bio , chunk_t chunk ) { chunk_t tmp ; sector_t tmp___0 ; { bio->bi_bdev = (s->cow)->bdev; tmp = dm_chunk_number(e->new_chunk); tmp___0 = chunk_to_sector(s->store, tmp + (chunk - e->old_chunk)); bio->bi_iter.bi_sector = tmp___0 + (bio->bi_iter.bi_sector & (sector_t )(s->store)->chunk_mask); return; } } static int snapshot_map(struct dm_target *ti , struct bio *bio ) { struct dm_exception *e ; struct dm_snapshot *s ; int r ; chunk_t chunk ; struct dm_snap_pending_exception *pe ; { s = (struct dm_snapshot *)ti->private; r = 1; pe = (struct dm_snap_pending_exception *)0; init_tracked_chunk(bio); if (((unsigned long long )bio->bi_rw & 8192ULL) != 0ULL) { bio->bi_bdev = (s->cow)->bdev; return (1); } else { } chunk = sector_to_chunk(s->store, bio->bi_iter.bi_sector); if (s->valid == 0) { return (-5); } else { } down_write(& s->lock); if (s->valid == 0) { r = -5; goto out_unlock; } else { } e = dm_lookup_exception(& s->complete, chunk); if ((unsigned long )e != (unsigned long )((struct dm_exception *)0)) { remap_exception(s, e, bio, chunk); goto out_unlock; } else { } if (((unsigned long long )bio->bi_rw & 16385ULL) == 1ULL) { pe = __lookup_pending_exception(s, chunk); if ((unsigned long )pe == (unsigned long )((struct dm_snap_pending_exception *)0)) { up_write(& s->lock); pe = alloc_pending_exception(s); down_write(& s->lock); if (s->valid == 0) { free_pending_exception(pe); r = -5; goto out_unlock; } else { } e = dm_lookup_exception(& s->complete, chunk); if ((unsigned long )e != (unsigned long )((struct dm_exception *)0)) { free_pending_exception(pe); remap_exception(s, e, bio, chunk); goto out_unlock; } else { } pe = __find_pending_exception(s, pe, chunk); if ((unsigned long )pe == (unsigned long )((struct dm_snap_pending_exception *)0)) { __invalidate_snapshot(s, -12); r = -5; goto out_unlock; } else { } } else { } remap_exception(s, & pe->e, bio, chunk); r = 0; if (pe->started == 0 && bio->bi_iter.bi_size == (s->store)->chunk_size << 9) { pe->started = 1; up_write(& s->lock); start_full_bio(pe, bio); goto out; } else { } bio_list_add(& pe->snapshot_bios, bio); if (pe->started == 0) { pe->started = 1; up_write(& s->lock); start_copy(pe); goto out; } else { } } else { bio->bi_bdev = (s->origin)->bdev; track_chunk(s, bio, chunk); } out_unlock: up_write(& s->lock); out: ; return (r); } } static int snapshot_merge_map(struct dm_target *ti , struct bio *bio ) { struct dm_exception *e ; struct dm_snapshot *s ; int r ; chunk_t chunk ; unsigned int tmp ; int tmp___0 ; { s = (struct dm_snapshot *)ti->private; r = 1; init_tracked_chunk(bio); if (((unsigned long long )bio->bi_rw & 8192ULL) != 0ULL) { tmp = dm_bio_get_target_bio_nr((struct bio const *)bio); if (tmp == 0U) { bio->bi_bdev = (s->origin)->bdev; } else { bio->bi_bdev = (s->cow)->bdev; } return (1); } else { } chunk = sector_to_chunk(s->store, bio->bi_iter.bi_sector); down_write(& s->lock); if (s->valid == 0) { goto redirect_to_origin; } else { } e = dm_lookup_exception(& s->complete, chunk); if ((unsigned long )e != (unsigned long )((struct dm_exception *)0)) { if ((((unsigned long long )bio->bi_rw & 16385ULL) == 1ULL && s->first_merging_chunk <= chunk) && s->first_merging_chunk + (chunk_t )s->num_merging_chunks > chunk) { bio->bi_bdev = (s->origin)->bdev; bio_list_add(& s->bios_queued_during_merge, bio); r = 0; goto out_unlock; } else { } remap_exception(s, e, bio, chunk); if (((unsigned long long )bio->bi_rw & 16385ULL) == 1ULL) { track_chunk(s, bio, chunk); } else { } goto out_unlock; } else { } redirect_to_origin: bio->bi_bdev = (s->origin)->bdev; if (((unsigned long long )bio->bi_rw & 16385ULL) == 1ULL) { up_write(& s->lock); tmp___0 = do_origin(s->origin, bio); return (tmp___0); } else { } out_unlock: up_write(& s->lock); return (r); } } static int snapshot_end_io(struct dm_target *ti , struct bio *bio , int error ) { struct dm_snapshot *s ; bool tmp ; { s = (struct dm_snapshot *)ti->private; tmp = is_bio_tracked(bio); if ((int )tmp) { stop_tracking_chunk(s, bio); } else { } return (0); } } static void snapshot_merge_presuspend(struct dm_target *ti ) { struct dm_snapshot *s ; { s = (struct dm_snapshot *)ti->private; stop_merge(s); return; } } static int snapshot_preresume(struct dm_target *ti ) { int r ; struct dm_snapshot *s ; struct dm_snapshot *snap_src ; struct dm_snapshot *snap_dest ; int tmp ; { r = 0; s = (struct dm_snapshot *)ti->private; snap_src = (struct dm_snapshot *)0; snap_dest = (struct dm_snapshot *)0; down_read(& _origins_lock); __find_snapshots_sharing_cow(s, & snap_src, & snap_dest, (struct dm_snapshot **)0); if ((unsigned long )snap_src != (unsigned long )((struct dm_snapshot *)0) && (unsigned long )snap_dest != (unsigned long )((struct dm_snapshot *)0)) { down_read(& snap_src->lock); if ((unsigned long )s == (unsigned long )snap_src) { printk("\vdevice-mapper: snapshots: Unable to resume snapshot source until handover completes.\n"); r = -22; } else { tmp = dm_suspended(snap_src->ti); if (tmp == 0) { printk("\vdevice-mapper: snapshots: Unable to perform snapshot handover until source is suspended.\n"); r = -22; } else { } } up_read(& snap_src->lock); } else { } up_read(& _origins_lock); return (r); } } static void snapshot_resume(struct dm_target *ti ) { struct dm_snapshot *s ; struct dm_snapshot *snap_src ; struct dm_snapshot *snap_dest ; struct dm_snapshot *snap_merging ; struct dm_origin *o ; struct mapped_device *origin_md ; bool must_restart_merging ; struct mapped_device *tmp ; int tmp___0 ; int tmp___1 ; { s = (struct dm_snapshot *)ti->private; snap_src = (struct dm_snapshot *)0; snap_dest = (struct dm_snapshot *)0; snap_merging = (struct dm_snapshot *)0; origin_md = (struct mapped_device *)0; must_restart_merging = 0; down_read(& _origins_lock); o = __lookup_dm_origin((s->origin)->bdev); if ((unsigned long )o != (unsigned long )((struct dm_origin *)0)) { origin_md = dm_table_get_md((o->ti)->table); } else { } if ((unsigned long )origin_md == (unsigned long )((struct mapped_device *)0)) { __find_snapshots_sharing_cow(s, (struct dm_snapshot **)0, (struct dm_snapshot **)0, & snap_merging); if ((unsigned long )snap_merging != (unsigned long )((struct dm_snapshot *)0)) { origin_md = dm_table_get_md((snap_merging->ti)->table); } else { } } else { } tmp = dm_table_get_md(ti->table); if ((unsigned long )tmp == (unsigned long )origin_md) { origin_md = (struct mapped_device *)0; } else { } if ((unsigned long )origin_md != (unsigned long )((struct mapped_device *)0)) { tmp___0 = dm_hold(origin_md); if (tmp___0 != 0) { origin_md = (struct mapped_device *)0; } else { } } else { } up_read(& _origins_lock); if ((unsigned long )origin_md != (unsigned long )((struct mapped_device *)0)) { dm_internal_suspend_fast(origin_md); if ((unsigned long )snap_merging != (unsigned long )((struct dm_snapshot *)0)) { tmp___1 = constant_test_bit(0L, (unsigned long const volatile *)(& snap_merging->state_bits)); if (tmp___1 != 0) { must_restart_merging = 1; stop_merge(snap_merging); } else { } } else { } } else { } down_read(& _origins_lock); __find_snapshots_sharing_cow(s, & snap_src, & snap_dest, (struct dm_snapshot **)0); if ((unsigned long )snap_src != (unsigned long )((struct dm_snapshot *)0) && (unsigned long )snap_dest != (unsigned long )((struct dm_snapshot *)0)) { down_write(& snap_src->lock); down_write_nested(& snap_dest->lock, 1); __handover_exceptions(snap_src, snap_dest); up_write(& snap_dest->lock); up_write(& snap_src->lock); } else { } up_read(& _origins_lock); if ((unsigned long )origin_md != (unsigned long )((struct mapped_device *)0)) { if ((int )must_restart_merging) { start_merge(snap_merging); } else { } dm_internal_resume_fast(origin_md); dm_put(origin_md); } else { } reregister_snapshot(s); down_write(& s->lock); s->active = 1; up_write(& s->lock); return; } } static uint32_t get_origin_minimum_chunksize(struct block_device *bdev ) { uint32_t min_chunksize ; struct origin *tmp ; { down_read(& _origins_lock); tmp = __lookup_origin(bdev); min_chunksize = __minimum_chunk_size(tmp); up_read(& _origins_lock); return (min_chunksize); } } static void snapshot_merge_resume(struct dm_target *ti ) { struct dm_snapshot *s ; { s = (struct dm_snapshot *)ti->private; snapshot_resume(ti); ti->max_io_len = get_origin_minimum_chunksize((s->origin)->bdev); start_merge(s); return; } } static void snapshot_status(struct dm_target *ti , status_type_t type , unsigned int status_flags , char *result , unsigned int maxlen ) { unsigned int sz ; struct dm_snapshot *snap ; int tmp ; unsigned int tmp___0 ; int tmp___1 ; unsigned int tmp___2 ; sector_t total_sectors ; sector_t sectors_allocated ; sector_t metadata_sectors ; int tmp___3 ; unsigned int tmp___4 ; int tmp___5 ; unsigned int tmp___6 ; int tmp___7 ; unsigned int tmp___8 ; { sz = 0U; snap = (struct dm_snapshot *)ti->private; switch ((unsigned int )type) { case 0U: down_write(& snap->lock); if (snap->valid == 0) { if (sz < maxlen) { tmp = scnprintf(result + (unsigned long )sz, (size_t )(maxlen - sz), "Invalid"); tmp___0 = (unsigned int )tmp; } else { tmp___0 = 0U; } sz = tmp___0 + sz; } else if (snap->merge_failed != 0) { if (sz < maxlen) { tmp___1 = scnprintf(result + (unsigned long )sz, (size_t )(maxlen - sz), "Merge failed"); tmp___2 = (unsigned int )tmp___1; } else { tmp___2 = 0U; } sz = tmp___2 + sz; } else if ((unsigned long )((snap->store)->type)->usage != (unsigned long )((void (*)(struct dm_exception_store * , sector_t * , sector_t * , sector_t * ))0)) { (*(((snap->store)->type)->usage))(snap->store, & total_sectors, & sectors_allocated, & metadata_sectors); if (sz < maxlen) { tmp___3 = scnprintf(result + (unsigned long )sz, (size_t )(maxlen - sz), "%llu/%llu %llu", (unsigned long long )sectors_allocated, (unsigned long long )total_sectors, (unsigned long long )metadata_sectors); tmp___4 = (unsigned int )tmp___3; } else { tmp___4 = 0U; } sz = tmp___4 + sz; } else { if (sz < maxlen) { tmp___5 = scnprintf(result + (unsigned long )sz, (size_t )(maxlen - sz), "Unknown"); tmp___6 = (unsigned int )tmp___5; } else { tmp___6 = 0U; } sz = tmp___6 + sz; } up_write(& snap->lock); goto ldv_35268; case 1U: ; if (sz < maxlen) { tmp___7 = scnprintf(result + (unsigned long )sz, (size_t )(maxlen - sz), "%s %s", (char *)(& (snap->origin)->name), (char *)(& (snap->cow)->name)); tmp___8 = (unsigned int )tmp___7; } else { tmp___8 = 0U; } sz = tmp___8 + sz; (*(((snap->store)->type)->status))(snap->store, type, result + (unsigned long )sz, maxlen - sz); goto ldv_35268; } ldv_35268: ; return; } } static int snapshot_iterate_devices(struct dm_target *ti , int (*fn)(struct dm_target * , struct dm_dev * , sector_t , sector_t , void * ) , void *data ) { struct dm_snapshot *snap ; int r ; sector_t tmp ; { snap = (struct dm_snapshot *)ti->private; r = (*fn)(ti, snap->origin, 0UL, ti->len, data); if (r == 0) { tmp = get_dev_size((snap->cow)->bdev); r = (*fn)(ti, snap->cow, 0UL, tmp, data); } else { } return (r); } } static int __origin_write(struct list_head *snapshots , sector_t sector , struct bio *bio ) { int r ; struct dm_snapshot *snap ; struct dm_exception *e ; struct dm_snap_pending_exception *pe ; struct dm_snap_pending_exception *pe_to_start_now ; struct dm_snap_pending_exception *pe_to_start_last ; chunk_t chunk ; struct list_head const *__mptr ; sector_t tmp ; struct list_head const *__mptr___0 ; { r = 1; pe_to_start_now = (struct dm_snap_pending_exception *)0; pe_to_start_last = (struct dm_snap_pending_exception *)0; __mptr = (struct list_head const *)snapshots->next; snap = (struct dm_snapshot *)__mptr + 0xffffffffffffff48UL; goto ldv_35296; ldv_35295: ; if ((unsigned long )((snap->ti)->type)->name == (unsigned long )((char const *)(& dm_snapshot_merge_target_name))) { goto ldv_35293; } else { } down_write(& snap->lock); if (snap->valid == 0 || snap->active == 0) { goto next_snapshot; } else { } tmp = dm_table_get_size((snap->ti)->table); if (tmp <= sector) { goto next_snapshot; } else { } chunk = sector_to_chunk(snap->store, sector); e = dm_lookup_exception(& snap->complete, chunk); if ((unsigned long )e != (unsigned long )((struct dm_exception *)0)) { goto next_snapshot; } else { } pe = __lookup_pending_exception(snap, chunk); if ((unsigned long )pe == (unsigned long )((struct dm_snap_pending_exception *)0)) { up_write(& snap->lock); pe = alloc_pending_exception(snap); down_write(& snap->lock); if (snap->valid == 0) { free_pending_exception(pe); goto next_snapshot; } else { } e = dm_lookup_exception(& snap->complete, chunk); if ((unsigned long )e != (unsigned long )((struct dm_exception *)0)) { free_pending_exception(pe); goto next_snapshot; } else { } pe = __find_pending_exception(snap, pe, chunk); if ((unsigned long )pe == (unsigned long )((struct dm_snap_pending_exception *)0)) { __invalidate_snapshot(snap, -12); goto next_snapshot; } else { } } else { } r = 0; if ((unsigned long )bio != (unsigned long )((struct bio *)0)) { bio_list_add(& pe->origin_bios, bio); bio = (struct bio *)0; if (pe->started == 0) { pe->started = 1; pe_to_start_last = pe; } else { } } else { } if (pe->started == 0) { pe->started = 1; pe_to_start_now = pe; } else { } next_snapshot: up_write(& snap->lock); if ((unsigned long )pe_to_start_now != (unsigned long )((struct dm_snap_pending_exception *)0)) { start_copy(pe_to_start_now); pe_to_start_now = (struct dm_snap_pending_exception *)0; } else { } ldv_35293: __mptr___0 = (struct list_head const *)snap->list.next; snap = (struct dm_snapshot *)__mptr___0 + 0xffffffffffffff48UL; ldv_35296: ; if ((unsigned long )(& snap->list) != (unsigned long )snapshots) { goto ldv_35295; } else { } if ((unsigned long )pe_to_start_last != (unsigned long )((struct dm_snap_pending_exception *)0)) { start_copy(pe_to_start_last); } else { } return (r); } } static int do_origin(struct dm_dev *origin , struct bio *bio ) { struct origin *o ; int r ; { r = 1; down_read(& _origins_lock); o = __lookup_origin(origin->bdev); if ((unsigned long )o != (unsigned long )((struct origin *)0)) { r = __origin_write(& o->snapshots, bio->bi_iter.bi_sector, bio); } else { } up_read(& _origins_lock); return (r); } } static int origin_write_extent(struct dm_snapshot *merging_snap , sector_t sector , unsigned int size ) { int must_wait ; sector_t n ; struct origin *o ; int tmp ; { must_wait = 0; down_read(& _origins_lock); o = __lookup_origin((merging_snap->origin)->bdev); n = 0UL; goto ldv_35313; ldv_35312: tmp = __origin_write(& o->snapshots, sector + n, (struct bio *)0); if (tmp == 0) { must_wait = 1; } else { } n = (sector_t )(merging_snap->ti)->max_io_len + n; ldv_35313: ; if ((sector_t )size > n) { goto ldv_35312; } else { } up_read(& _origins_lock); return (must_wait); } } static int origin_ctr(struct dm_target *ti , unsigned int argc , char **argv ) { int r ; struct dm_origin *o ; void *tmp ; fmode_t tmp___0 ; { if (argc != 1U) { ti->error = (char *)"origin: incorrect number of arguments"; return (-22); } else { } tmp = kmalloc(40UL, 208U); o = (struct dm_origin *)tmp; if ((unsigned long )o == (unsigned long )((struct dm_origin *)0)) { ti->error = (char *)"Cannot allocate private origin structure"; r = -12; goto bad_alloc; } else { } tmp___0 = dm_table_get_mode(ti->table); r = dm_get_device(ti, (char const *)*argv, tmp___0, & o->dev); if (r != 0) { ti->error = (char *)"Cannot get target device"; goto bad_open; } else { } o->ti = ti; ti->private = (void *)o; ti->num_flush_bios = 1U; return (0); bad_open: kfree((void const *)o); bad_alloc: ; return (r); } } static void origin_dtr(struct dm_target *ti ) { struct dm_origin *o ; { o = (struct dm_origin *)ti->private; dm_put_device(ti, o->dev); kfree((void const *)o); return; } } static int origin_map(struct dm_target *ti , struct bio *bio ) { struct dm_origin *o ; unsigned int available_sectors ; long tmp ; int tmp___0 ; { o = (struct dm_origin *)ti->private; bio->bi_bdev = (o->dev)->bdev; tmp = ldv__builtin_expect(((unsigned long long )bio->bi_rw & 8192ULL) != 0ULL, 0L); if (tmp != 0L) { return (1); } else { } if (((unsigned long long )bio->bi_rw & 16385ULL) != 1ULL) { return (1); } else { } available_sectors = o->split_boundary - ((unsigned int )bio->bi_iter.bi_sector & (o->split_boundary - 1U)); if (bio->bi_iter.bi_size >> 9 > available_sectors) { dm_accept_partial_bio(bio, available_sectors); } else { } tmp___0 = do_origin(o->dev, bio); return (tmp___0); } } static void origin_resume(struct dm_target *ti ) { struct dm_origin *o ; { o = (struct dm_origin *)ti->private; o->split_boundary = get_origin_minimum_chunksize((o->dev)->bdev); down_write(& _origins_lock); __insert_dm_origin(o); up_write(& _origins_lock); return; } } static void origin_postsuspend(struct dm_target *ti ) { struct dm_origin *o ; { o = (struct dm_origin *)ti->private; down_write(& _origins_lock); __remove_dm_origin(o); up_write(& _origins_lock); return; } } static void origin_status(struct dm_target *ti , status_type_t type , unsigned int status_flags , char *result , unsigned int maxlen ) { struct dm_origin *o ; { o = (struct dm_origin *)ti->private; switch ((unsigned int )type) { case 0U: *result = 0; goto ldv_35351; case 1U: snprintf(result, (size_t )maxlen, "%s", (char *)(& (o->dev)->name)); goto ldv_35351; } ldv_35351: ; return; } } static int origin_merge(struct dm_target *ti , struct bvec_merge_data *bvm , struct bio_vec *biovec , int max_size ) { struct dm_origin *o ; struct request_queue *q ; struct request_queue *tmp ; int _min1 ; int _min2 ; int tmp___0 ; { o = (struct dm_origin *)ti->private; tmp = bdev_get_queue((o->dev)->bdev); q = tmp; if ((unsigned long )q->merge_bvec_fn == (unsigned long )((merge_bvec_fn *)0)) { return (max_size); } else { } bvm->bi_bdev = (o->dev)->bdev; _min1 = max_size; tmp___0 = (*(q->merge_bvec_fn))(q, bvm, biovec); _min2 = tmp___0; return (_min1 < _min2 ? _min1 : _min2); } } static int origin_iterate_devices(struct dm_target *ti , int (*fn)(struct dm_target * , struct dm_dev * , sector_t , sector_t , void * ) , void *data ) { struct dm_origin *o ; int tmp ; { o = (struct dm_origin *)ti->private; tmp = (*fn)(ti, o->dev, 0UL, ti->len, data); return (tmp); } } static struct target_type origin_target = {0ULL, "snapshot-origin", & __this_module, {1U, 9U, 0U}, & origin_ctr, & origin_dtr, & origin_map, 0, 0, 0, 0, 0, 0, 0, & origin_postsuspend, 0, & origin_resume, & origin_status, 0, 0, & origin_merge, 0, & origin_iterate_devices, 0, {0, 0}}; static struct target_type snapshot_target = {0ULL, "snapshot", & __this_module, {1U, 13U, 0U}, & snapshot_ctr, & snapshot_dtr, & snapshot_map, 0, 0, 0, & snapshot_end_io, 0, 0, 0, 0, & snapshot_preresume, & snapshot_resume, & snapshot_status, 0, 0, 0, 0, & snapshot_iterate_devices, 0, {0, 0}}; static struct target_type merge_target = {0ULL, (char const *)(& dm_snapshot_merge_target_name), & __this_module, {1U, 3U, 0U}, & snapshot_ctr, & snapshot_dtr, & snapshot_merge_map, 0, 0, 0, & snapshot_end_io, 0, & snapshot_merge_presuspend, 0, 0, & snapshot_preresume, & snapshot_merge_resume, & snapshot_status, 0, 0, 0, 0, & snapshot_iterate_devices, 0, {0, 0}}; static int dm_snapshot_init(void) { int r ; { r = dm_exception_store_init(); if (r != 0) { printk("\vdevice-mapper: snapshots: Failed to initialize exception stores\n"); return (r); } else { } r = dm_register_target(& snapshot_target); if (r < 0) { printk("\vdevice-mapper: snapshots: snapshot target register failed %d\n", r); goto bad_register_snapshot_target; } else { } r = dm_register_target(& origin_target); if (r < 0) { printk("\vdevice-mapper: snapshots: Origin target register failed %d\n", r); goto bad_register_origin_target; } else { } r = dm_register_target(& merge_target); if (r < 0) { printk("\vdevice-mapper: snapshots: Merge target register failed %d\n", r); goto bad_register_merge_target; } else { } r = init_origin_hash(); if (r != 0) { printk("\vdevice-mapper: snapshots: init_origin_hash failed.\n"); goto bad_origin_hash; } else { } exception_cache = kmem_cache_create("dm_exception", 32UL, 8UL, 0UL, (void (*)(void * ))0); if ((unsigned long )exception_cache == (unsigned long )((struct kmem_cache *)0)) { printk("\vdevice-mapper: snapshots: Couldn\'t create exception cache.\n"); r = -12; goto bad_exception_cache; } else { } pending_cache = kmem_cache_create("dm_snap_pending_exception", 128UL, 8UL, 0UL, (void (*)(void * ))0); if ((unsigned long )pending_cache == (unsigned long )((struct kmem_cache *)0)) { printk("\vdevice-mapper: snapshots: Couldn\'t create pending cache.\n"); r = -12; goto bad_pending_cache; } else { } return (0); bad_pending_cache: kmem_cache_destroy(exception_cache); bad_exception_cache: exit_origin_hash(); bad_origin_hash: dm_unregister_target(& merge_target); bad_register_merge_target: dm_unregister_target(& origin_target); bad_register_origin_target: dm_unregister_target(& snapshot_target); bad_register_snapshot_target: dm_exception_store_exit(); return (r); } } static void dm_snapshot_exit(void) { { dm_unregister_target(& snapshot_target); dm_unregister_target(& origin_target); dm_unregister_target(& merge_target); exit_origin_hash(); kmem_cache_destroy(pending_cache); kmem_cache_destroy(exception_cache); dm_exception_store_exit(); return; } } extern int ldv_postsuspend_6(void) ; int ldv_retval_2 ; extern int ldv_preresume_7(void) ; int ldv_retval_5 ; int ldv_retval_0 ; int ldv_retval_4 ; int ldv_retval_6 ; int ldv_retval_1 ; extern void ldv_initialize(void) ; extern int ldv_presuspend_6(void) ; extern void ldv_check_final_state(void) ; int ldv_retval_3 ; extern int ldv_postsuspend_5(void) ; extern int ldv_presuspend_7(void) ; void ldv_target_type_5(void) { void *tmp ; { tmp = ldv_init_zalloc(88UL); merge_target_group1 = (struct dm_target *)tmp; return; } } void ldv_target_type_7(void) { void *tmp ; { tmp = ldv_init_zalloc(88UL); origin_target_group1 = (struct dm_target *)tmp; return; } } void ldv_target_type_6(void) { void *tmp ; { tmp = ldv_init_zalloc(88UL); snapshot_target_group1 = (struct dm_target *)tmp; return; } } void ldv_main_exported_1(void) ; void ldv_main_exported_2(void) ; void ldv_main_exported_4(void) ; void ldv_main_exported_3(void) ; int main(void) { int ldvarg7 ; unsigned int ldvarg3 ; char *ldvarg0 ; void *tmp ; void *ldvarg5 ; void *tmp___0 ; int (*ldvarg6)(struct dm_target * , struct dm_dev * , sector_t , sector_t , void * ) ; struct bio *ldvarg8 ; void *tmp___1 ; unsigned int ldvarg1 ; struct bio *ldvarg4 ; void *tmp___2 ; unsigned int ldvarg10 ; char **ldvarg9 ; void *tmp___3 ; status_type_t ldvarg2 ; unsigned int ldvarg24 ; struct bio *ldvarg27 ; void *tmp___4 ; unsigned int ldvarg26 ; int (*ldvarg32)(struct dm_target * , struct dm_dev * , sector_t , sector_t , void * ) ; void *ldvarg31 ; void *tmp___5 ; char *ldvarg23 ; void *tmp___6 ; char **ldvarg33 ; void *tmp___7 ; struct bvec_merge_data *ldvarg30 ; void *tmp___8 ; status_type_t ldvarg25 ; struct bio_vec *ldvarg29 ; void *tmp___9 ; unsigned int ldvarg34 ; int ldvarg28 ; struct bio *ldvarg81 ; void *tmp___10 ; char *ldvarg77 ; void *tmp___11 ; struct bio *ldvarg85 ; void *tmp___12 ; int ldvarg84 ; unsigned int ldvarg80 ; unsigned int ldvarg78 ; unsigned int ldvarg87 ; char **ldvarg86 ; void *tmp___13 ; status_type_t ldvarg79 ; void *ldvarg82 ; void *tmp___14 ; int (*ldvarg83)(struct dm_target * , struct dm_dev * , sector_t , sector_t , void * ) ; int tmp___15 ; int tmp___16 ; int tmp___17 ; int tmp___18 ; int tmp___19 ; { tmp = ldv_init_zalloc(1UL); ldvarg0 = (char *)tmp; tmp___0 = ldv_init_zalloc(1UL); ldvarg5 = tmp___0; tmp___1 = ldv_init_zalloc(136UL); ldvarg8 = (struct bio *)tmp___1; tmp___2 = ldv_init_zalloc(136UL); ldvarg4 = (struct bio *)tmp___2; tmp___3 = ldv_init_zalloc(8UL); ldvarg9 = (char **)tmp___3; tmp___4 = ldv_init_zalloc(136UL); ldvarg27 = (struct bio *)tmp___4; tmp___5 = ldv_init_zalloc(1UL); ldvarg31 = tmp___5; tmp___6 = ldv_init_zalloc(1UL); ldvarg23 = (char *)tmp___6; tmp___7 = ldv_init_zalloc(8UL); ldvarg33 = (char **)tmp___7; tmp___8 = ldv_init_zalloc(32UL); ldvarg30 = (struct bvec_merge_data *)tmp___8; tmp___9 = ldv_init_zalloc(16UL); ldvarg29 = (struct bio_vec *)tmp___9; tmp___10 = ldv_init_zalloc(136UL); ldvarg81 = (struct bio *)tmp___10; tmp___11 = ldv_init_zalloc(1UL); ldvarg77 = (char *)tmp___11; tmp___12 = ldv_init_zalloc(136UL); ldvarg85 = (struct bio *)tmp___12; tmp___13 = ldv_init_zalloc(8UL); ldvarg86 = (char **)tmp___13; tmp___14 = ldv_init_zalloc(1UL); ldvarg82 = tmp___14; ldv_initialize(); ldv_memset((void *)(& ldvarg7), 0, 4UL); ldv_memset((void *)(& ldvarg3), 0, 4UL); ldv_memset((void *)(& ldvarg6), 0, 8UL); ldv_memset((void *)(& ldvarg1), 0, 4UL); ldv_memset((void *)(& ldvarg10), 0, 4UL); ldv_memset((void *)(& ldvarg2), 0, 4UL); ldv_memset((void *)(& ldvarg24), 0, 4UL); ldv_memset((void *)(& ldvarg26), 0, 4UL); ldv_memset((void *)(& ldvarg32), 0, 8UL); ldv_memset((void *)(& ldvarg25), 0, 4UL); ldv_memset((void *)(& ldvarg34), 0, 4UL); ldv_memset((void *)(& ldvarg28), 0, 4UL); ldv_memset((void *)(& ldvarg84), 0, 4UL); ldv_memset((void *)(& ldvarg80), 0, 4UL); ldv_memset((void *)(& ldvarg78), 0, 4UL); ldv_memset((void *)(& ldvarg87), 0, 4UL); ldv_memset((void *)(& ldvarg79), 0, 4UL); ldv_memset((void *)(& ldvarg83), 0, 8UL); ldv_state_variable_6 = 0; ldv_state_variable_3 = 0; ldv_state_variable_7 = 0; ldv_state_variable_2 = 0; ldv_state_variable_1 = 0; ldv_state_variable_4 = 0; ref_cnt = 0; ldv_state_variable_0 = 1; ldv_state_variable_5 = 0; ldv_35567: tmp___15 = __VERIFIER_nondet_int(); switch (tmp___15) { case 0: ; if (ldv_state_variable_6 != 0) { tmp___16 = __VERIFIER_nondet_int(); switch (tmp___16) { case 0: ; if (ldv_state_variable_6 == 1) { ldv_retval_1 = snapshot_ctr(snapshot_target_group1, ldvarg10, ldvarg9); if (ldv_retval_1 == 0) { ldv_state_variable_6 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_35518; case 1: ; if (ldv_state_variable_6 == 4) { snapshot_end_io(snapshot_target_group1, ldvarg8, ldvarg7); ldv_state_variable_6 = 4; } else { } if (ldv_state_variable_6 == 1) { snapshot_end_io(snapshot_target_group1, ldvarg8, ldvarg7); ldv_state_variable_6 = 1; } else { } if (ldv_state_variable_6 == 3) { snapshot_end_io(snapshot_target_group1, ldvarg8, ldvarg7); ldv_state_variable_6 = 3; } else { } if (ldv_state_variable_6 == 2) { snapshot_end_io(snapshot_target_group1, ldvarg8, ldvarg7); ldv_state_variable_6 = 2; } else { } if (ldv_state_variable_6 == 5) { snapshot_end_io(snapshot_target_group1, ldvarg8, ldvarg7); ldv_state_variable_6 = 5; } else { } goto ldv_35518; case 2: ; if (ldv_state_variable_6 == 4) { snapshot_dtr(snapshot_target_group1); ldv_state_variable_6 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_6 == 3) { snapshot_dtr(snapshot_target_group1); ldv_state_variable_6 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_6 == 2) { snapshot_dtr(snapshot_target_group1); ldv_state_variable_6 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_6 == 5) { snapshot_dtr(snapshot_target_group1); ldv_state_variable_6 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_35518; case 3: ; if (ldv_state_variable_6 == 4) { ldv_retval_0 = snapshot_preresume(snapshot_target_group1); if (ldv_retval_0 == 0) { ldv_state_variable_6 = 5; } else { } } else { } goto ldv_35518; case 4: ; if (ldv_state_variable_6 == 4) { snapshot_iterate_devices(snapshot_target_group1, ldvarg6, ldvarg5); ldv_state_variable_6 = 4; } else { } if (ldv_state_variable_6 == 1) { snapshot_iterate_devices(snapshot_target_group1, ldvarg6, ldvarg5); ldv_state_variable_6 = 1; } else { } if (ldv_state_variable_6 == 3) { snapshot_iterate_devices(snapshot_target_group1, ldvarg6, ldvarg5); ldv_state_variable_6 = 3; } else { } if (ldv_state_variable_6 == 2) { snapshot_iterate_devices(snapshot_target_group1, ldvarg6, ldvarg5); ldv_state_variable_6 = 2; } else { } if (ldv_state_variable_6 == 5) { snapshot_iterate_devices(snapshot_target_group1, ldvarg6, ldvarg5); ldv_state_variable_6 = 5; } else { } goto ldv_35518; case 5: ; if (ldv_state_variable_6 == 4) { snapshot_map(snapshot_target_group1, ldvarg4); ldv_state_variable_6 = 4; } else { } if (ldv_state_variable_6 == 3) { snapshot_map(snapshot_target_group1, ldvarg4); ldv_state_variable_6 = 3; } else { } if (ldv_state_variable_6 == 2) { snapshot_map(snapshot_target_group1, ldvarg4); ldv_state_variable_6 = 2; } else { } if (ldv_state_variable_6 == 5) { snapshot_map(snapshot_target_group1, ldvarg4); ldv_state_variable_6 = 5; } else { } goto ldv_35518; case 6: ; if (ldv_state_variable_6 == 4) { snapshot_status(snapshot_target_group1, ldvarg2, ldvarg1, ldvarg0, ldvarg3); ldv_state_variable_6 = 4; } else { } if (ldv_state_variable_6 == 1) { snapshot_status(snapshot_target_group1, ldvarg2, ldvarg1, ldvarg0, ldvarg3); ldv_state_variable_6 = 1; } else { } if (ldv_state_variable_6 == 3) { snapshot_status(snapshot_target_group1, ldvarg2, ldvarg1, ldvarg0, ldvarg3); ldv_state_variable_6 = 3; } else { } if (ldv_state_variable_6 == 2) { snapshot_status(snapshot_target_group1, ldvarg2, ldvarg1, ldvarg0, ldvarg3); ldv_state_variable_6 = 2; } else { } if (ldv_state_variable_6 == 5) { snapshot_status(snapshot_target_group1, ldvarg2, ldvarg1, ldvarg0, ldvarg3); ldv_state_variable_6 = 5; } else { } goto ldv_35518; case 7: ; if (ldv_state_variable_6 == 5) { snapshot_resume(snapshot_target_group1); ldv_state_variable_6 = 2; } else { } goto ldv_35518; case 8: ; if (ldv_state_variable_6 == 2) { ldv_presuspend_6(); ldv_state_variable_6 = 3; } else { } goto ldv_35518; case 9: ; if (ldv_state_variable_6 == 3) { ldv_postsuspend_6(); ldv_state_variable_6 = 4; } else { } goto ldv_35518; default: ldv_stop(); } ldv_35518: ; } else { } goto ldv_35529; case 1: ; if (ldv_state_variable_3 != 0) { ldv_main_exported_3(); } else { } goto ldv_35529; case 2: ; if (ldv_state_variable_7 != 0) { tmp___17 = __VERIFIER_nondet_int(); switch (tmp___17) { case 0: ; if (ldv_state_variable_7 == 1) { ldv_retval_3 = origin_ctr(origin_target_group1, ldvarg34, ldvarg33); if (ldv_retval_3 == 0) { ldv_state_variable_7 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_35533; case 1: ; if (ldv_state_variable_7 == 4) { origin_dtr(origin_target_group1); ldv_state_variable_7 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_7 == 3) { origin_dtr(origin_target_group1); ldv_state_variable_7 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_7 == 2) { origin_dtr(origin_target_group1); ldv_state_variable_7 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_7 == 5) { origin_dtr(origin_target_group1); ldv_state_variable_7 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_35533; case 2: ; if (ldv_state_variable_7 == 4) { origin_iterate_devices(origin_target_group1, ldvarg32, ldvarg31); ldv_state_variable_7 = 4; } else { } if (ldv_state_variable_7 == 1) { origin_iterate_devices(origin_target_group1, ldvarg32, ldvarg31); ldv_state_variable_7 = 1; } else { } if (ldv_state_variable_7 == 3) { origin_iterate_devices(origin_target_group1, ldvarg32, ldvarg31); ldv_state_variable_7 = 3; } else { } if (ldv_state_variable_7 == 2) { origin_iterate_devices(origin_target_group1, ldvarg32, ldvarg31); ldv_state_variable_7 = 2; } else { } if (ldv_state_variable_7 == 5) { origin_iterate_devices(origin_target_group1, ldvarg32, ldvarg31); ldv_state_variable_7 = 5; } else { } goto ldv_35533; case 3: ; if (ldv_state_variable_7 == 4) { origin_merge(origin_target_group1, ldvarg30, ldvarg29, ldvarg28); ldv_state_variable_7 = 4; } else { } if (ldv_state_variable_7 == 1) { origin_merge(origin_target_group1, ldvarg30, ldvarg29, ldvarg28); ldv_state_variable_7 = 1; } else { } if (ldv_state_variable_7 == 3) { origin_merge(origin_target_group1, ldvarg30, ldvarg29, ldvarg28); ldv_state_variable_7 = 3; } else { } if (ldv_state_variable_7 == 2) { origin_merge(origin_target_group1, ldvarg30, ldvarg29, ldvarg28); ldv_state_variable_7 = 2; } else { } if (ldv_state_variable_7 == 5) { origin_merge(origin_target_group1, ldvarg30, ldvarg29, ldvarg28); ldv_state_variable_7 = 5; } else { } goto ldv_35533; case 4: ; if (ldv_state_variable_7 == 4) { origin_map(origin_target_group1, ldvarg27); ldv_state_variable_7 = 4; } else { } if (ldv_state_variable_7 == 3) { origin_map(origin_target_group1, ldvarg27); ldv_state_variable_7 = 3; } else { } if (ldv_state_variable_7 == 2) { origin_map(origin_target_group1, ldvarg27); ldv_state_variable_7 = 2; } else { } if (ldv_state_variable_7 == 5) { origin_map(origin_target_group1, ldvarg27); ldv_state_variable_7 = 5; } else { } goto ldv_35533; case 5: ; if (ldv_state_variable_7 == 3) { origin_postsuspend(origin_target_group1); ldv_state_variable_7 = 4; } else { } goto ldv_35533; case 6: ; if (ldv_state_variable_7 == 4) { origin_status(origin_target_group1, ldvarg25, ldvarg24, ldvarg23, ldvarg26); ldv_state_variable_7 = 4; } else { } if (ldv_state_variable_7 == 1) { origin_status(origin_target_group1, ldvarg25, ldvarg24, ldvarg23, ldvarg26); ldv_state_variable_7 = 1; } else { } if (ldv_state_variable_7 == 3) { origin_status(origin_target_group1, ldvarg25, ldvarg24, ldvarg23, ldvarg26); ldv_state_variable_7 = 3; } else { } if (ldv_state_variable_7 == 2) { origin_status(origin_target_group1, ldvarg25, ldvarg24, ldvarg23, ldvarg26); ldv_state_variable_7 = 2; } else { } if (ldv_state_variable_7 == 5) { origin_status(origin_target_group1, ldvarg25, ldvarg24, ldvarg23, ldvarg26); ldv_state_variable_7 = 5; } else { } goto ldv_35533; case 7: ; if (ldv_state_variable_7 == 5) { origin_resume(origin_target_group1); ldv_state_variable_7 = 2; } else { } goto ldv_35533; case 8: ; if (ldv_state_variable_7 == 2) { ldv_presuspend_7(); ldv_state_variable_7 = 3; } else { } goto ldv_35533; case 9: ; if (ldv_state_variable_7 == 4) { ldv_retval_2 = ldv_preresume_7(); if (ldv_retval_2 == 0) { ldv_state_variable_7 = 5; } else { } } else { } goto ldv_35533; default: ldv_stop(); } ldv_35533: ; } else { } goto ldv_35529; case 3: ; if (ldv_state_variable_2 != 0) { ldv_main_exported_2(); } else { } goto ldv_35529; case 4: ; if (ldv_state_variable_1 != 0) { ldv_main_exported_1(); } else { } goto ldv_35529; case 5: ; if (ldv_state_variable_4 != 0) { ldv_main_exported_4(); } else { } goto ldv_35529; case 6: ; if (ldv_state_variable_0 != 0) { tmp___18 = __VERIFIER_nondet_int(); switch (tmp___18) { case 0: ; if (ldv_state_variable_0 == 3 && ref_cnt == 0) { dm_snapshot_exit(); ldv_state_variable_0 = 2; goto ldv_final; } else { } goto ldv_35550; case 1: ; if (ldv_state_variable_0 == 1) { ldv_retval_4 = dm_snapshot_init(); if (ldv_retval_4 == 0) { ldv_state_variable_0 = 3; ldv_state_variable_5 = 1; ldv_target_type_5(); ldv_state_variable_2 = 1; ldv_initialize_dm_exception_store_type_2(); ldv_state_variable_7 = 1; ldv_target_type_7(); ldv_state_variable_3 = 1; ldv_initialize_dm_exception_store_type_3(); ldv_state_variable_1 = 1; ldv_initialize_dm_exception_store_type_1(); ldv_state_variable_4 = 1; ldv_initialize_dm_exception_store_type_4(); ldv_state_variable_6 = 1; ldv_target_type_6(); } else { } if (ldv_retval_4 != 0) { ldv_state_variable_0 = 2; goto ldv_final; } else { } } else { } goto ldv_35550; default: ldv_stop(); } ldv_35550: ; } else { } goto ldv_35529; case 7: ; if (ldv_state_variable_5 != 0) { tmp___19 = __VERIFIER_nondet_int(); switch (tmp___19) { case 0: ; if (ldv_state_variable_5 == 1) { ldv_retval_6 = snapshot_ctr(merge_target_group1, ldvarg87, ldvarg86); if (ldv_retval_6 == 0) { ldv_state_variable_5 = 2; ref_cnt = ref_cnt + 1; } else { } } else { } goto ldv_35555; case 1: ; if (ldv_state_variable_5 == 4) { snapshot_end_io(merge_target_group1, ldvarg85, ldvarg84); ldv_state_variable_5 = 4; } else { } if (ldv_state_variable_5 == 1) { snapshot_end_io(merge_target_group1, ldvarg85, ldvarg84); ldv_state_variable_5 = 1; } else { } if (ldv_state_variable_5 == 3) { snapshot_end_io(merge_target_group1, ldvarg85, ldvarg84); ldv_state_variable_5 = 3; } else { } if (ldv_state_variable_5 == 2) { snapshot_end_io(merge_target_group1, ldvarg85, ldvarg84); ldv_state_variable_5 = 2; } else { } if (ldv_state_variable_5 == 5) { snapshot_end_io(merge_target_group1, ldvarg85, ldvarg84); ldv_state_variable_5 = 5; } else { } goto ldv_35555; case 2: ; if (ldv_state_variable_5 == 4) { snapshot_dtr(merge_target_group1); ldv_state_variable_5 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_5 == 3) { snapshot_dtr(merge_target_group1); ldv_state_variable_5 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_5 == 2) { snapshot_dtr(merge_target_group1); ldv_state_variable_5 = 1; ref_cnt = ref_cnt - 1; } else { } if (ldv_state_variable_5 == 5) { snapshot_dtr(merge_target_group1); ldv_state_variable_5 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_35555; case 3: ; if (ldv_state_variable_5 == 4) { snapshot_iterate_devices(merge_target_group1, ldvarg83, ldvarg82); ldv_state_variable_5 = 4; } else { } if (ldv_state_variable_5 == 1) { snapshot_iterate_devices(merge_target_group1, ldvarg83, ldvarg82); ldv_state_variable_5 = 1; } else { } if (ldv_state_variable_5 == 3) { snapshot_iterate_devices(merge_target_group1, ldvarg83, ldvarg82); ldv_state_variable_5 = 3; } else { } if (ldv_state_variable_5 == 2) { snapshot_iterate_devices(merge_target_group1, ldvarg83, ldvarg82); ldv_state_variable_5 = 2; } else { } if (ldv_state_variable_5 == 5) { snapshot_iterate_devices(merge_target_group1, ldvarg83, ldvarg82); ldv_state_variable_5 = 5; } else { } goto ldv_35555; case 4: ; if (ldv_state_variable_5 == 4) { ldv_retval_5 = snapshot_preresume(merge_target_group1); if (ldv_retval_5 == 0) { ldv_state_variable_5 = 5; } else { } } else { } goto ldv_35555; case 5: ; if (ldv_state_variable_5 == 4) { snapshot_merge_map(merge_target_group1, ldvarg81); ldv_state_variable_5 = 4; } else { } if (ldv_state_variable_5 == 3) { snapshot_merge_map(merge_target_group1, ldvarg81); ldv_state_variable_5 = 3; } else { } if (ldv_state_variable_5 == 2) { snapshot_merge_map(merge_target_group1, ldvarg81); ldv_state_variable_5 = 2; } else { } if (ldv_state_variable_5 == 5) { snapshot_merge_map(merge_target_group1, ldvarg81); ldv_state_variable_5 = 5; } else { } goto ldv_35555; case 6: ; if (ldv_state_variable_5 == 4) { snapshot_status(merge_target_group1, ldvarg79, ldvarg78, ldvarg77, ldvarg80); ldv_state_variable_5 = 4; } else { } if (ldv_state_variable_5 == 1) { snapshot_status(merge_target_group1, ldvarg79, ldvarg78, ldvarg77, ldvarg80); ldv_state_variable_5 = 1; } else { } if (ldv_state_variable_5 == 3) { snapshot_status(merge_target_group1, ldvarg79, ldvarg78, ldvarg77, ldvarg80); ldv_state_variable_5 = 3; } else { } if (ldv_state_variable_5 == 2) { snapshot_status(merge_target_group1, ldvarg79, ldvarg78, ldvarg77, ldvarg80); ldv_state_variable_5 = 2; } else { } if (ldv_state_variable_5 == 5) { snapshot_status(merge_target_group1, ldvarg79, ldvarg78, ldvarg77, ldvarg80); ldv_state_variable_5 = 5; } else { } goto ldv_35555; case 7: ; if (ldv_state_variable_5 == 2) { snapshot_merge_presuspend(merge_target_group1); ldv_state_variable_5 = 3; } else { } goto ldv_35555; case 8: ; if (ldv_state_variable_5 == 5) { snapshot_merge_resume(merge_target_group1); ldv_state_variable_5 = 2; } else { } goto ldv_35555; case 9: ; if (ldv_state_variable_5 == 3) { ldv_postsuspend_5(); ldv_state_variable_5 = 4; } else { } goto ldv_35555; default: ldv_stop(); } ldv_35555: ; } else { } goto ldv_35529; default: ldv_stop(); } ldv_35529: ; goto ldv_35567; ldv_final: ldv_check_final_state(); return 0; } } __inline static long PTR_ERR(void const *ptr ) { long tmp ; { tmp = ldv_ptr_err(ptr); return (tmp); } } __inline static bool IS_ERR(void const *ptr ) { bool tmp ; { tmp = ldv_is_err(ptr); return (tmp); } } __inline static void spin_lock(spinlock_t *lock ) { { ldv_spin_lock(); ldv_spin_lock_5(lock); return; } } __inline static void spin_lock_irq(spinlock_t *lock ) { { ldv_spin_lock(); ldv_spin_lock_irq_8(lock); return; } } __inline static void spin_unlock(spinlock_t *lock ) { { ldv_spin_unlock(); ldv_spin_unlock_9(lock); return; } } __inline static void spin_unlock_irq(spinlock_t *lock ) { { ldv_spin_unlock(); ldv_spin_unlock_irq_11(lock); return; } } __inline static void spin_unlock_irqrestore(spinlock_t *lock , unsigned long flags ) { { ldv_spin_unlock(); ldv_spin_unlock_irqrestore_12(lock, flags); return; } } __inline static void *kmalloc(size_t size , gfp_t flags ) { void *tmp ; { ldv_check_alloc_flags(flags); tmp = ldv_undef_ptr(); return (tmp); } } void *ldv_kmem_cache_alloc_20(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) { void *tmp ; { ldv_check_alloc_flags(flags); tmp = ldv_undef_ptr(); return (tmp); } } void *ldv_kmem_cache_alloc_23(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) { void *tmp ; { ldv_check_alloc_flags(flags); tmp = ldv_undef_ptr(); return (tmp); } } void *ldv_kmem_cache_alloc_24(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) { void *tmp ; { ldv_check_alloc_flags(flags); tmp = ldv_undef_ptr(); return (tmp); } } void *ldv_mempool_alloc_25(mempool_t *ldv_func_arg1 , gfp_t flags ) { void *tmp ; { ldv_check_alloc_flags(flags); tmp = ldv_undef_ptr(); return (tmp); } } __inline static int ffs(int x ) { int r ; { __asm__ ("bsfl %1,%0": "=r" (r): "rm" (x), "0" (-1)); return (r + 1); } } __inline static bool is_power_of_2(unsigned long n ) { { return ((bool )(n != 0UL && ((n - 1UL) & n) == 0UL)); } } extern int kstrtouint(char const * , unsigned int , unsigned int * ) ; extern int strcmp(char const * , char const * ) ; extern char *strrchr(char const * , int ) ; extern char *kstrdup(char const * , gfp_t ) ; __inline static void spin_lock(spinlock_t *lock ) ; __inline static void spin_unlock(spinlock_t *lock ) ; extern int __request_module(bool , char const * , ...) ; extern bool try_module_get(struct module * ) ; extern void module_put(struct module * ) ; void *ldv_kmem_cache_alloc_45(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) ; __inline static void *kmalloc(size_t size , gfp_t flags ) ; __inline static unsigned short queue_logical_block_size(struct request_queue *q ) { int retval ; { retval = 512; if ((unsigned long )q != (unsigned long )((struct request_queue *)0) && (unsigned int )q->limits.logical_block_size != 0U) { retval = (int )q->limits.logical_block_size; } else { } return ((unsigned short )retval); } } __inline static unsigned short bdev_logical_block_size(struct block_device *bdev ) { struct request_queue *tmp ; unsigned short tmp___0 ; { tmp = bdev_get_queue(bdev); tmp___0 = queue_logical_block_size(tmp); return (tmp___0); } } int dm_exception_store_type_register(struct dm_exception_store_type *type ) ; int dm_exception_store_type_unregister(struct dm_exception_store_type *type ) ; int dm_exception_store_set_chunk_size(struct dm_exception_store *store , unsigned int chunk_size , char **error ) ; int dm_persistent_snapshot_init(void) ; void dm_persistent_snapshot_exit(void) ; int dm_transient_snapshot_init(void) ; void dm_transient_snapshot_exit(void) ; extern unsigned char const _ctype[] ; __inline static unsigned char __toupper(unsigned char c ) { { if (((int )_ctype[(int )c] & 2) != 0) { c = (unsigned int )c + 224U; } else { } return (c); } } static struct list_head _exception_store_types = {& _exception_store_types, & _exception_store_types}; static spinlock_t _lock = {{{{{0}}, 3735899821U, 4294967295U, (void *)-1, {0, {0, 0}, "_lock", 0, 0UL}}}}; static struct dm_exception_store_type *__find_exception_store_type(char const *name ) { struct dm_exception_store_type *type ; struct list_head const *__mptr ; int tmp ; struct list_head const *__mptr___0 ; { __mptr = (struct list_head const *)_exception_store_types.next; type = (struct dm_exception_store_type *)__mptr + 0xffffffffffffffa0UL; goto ldv_33153; ldv_33152: tmp = strcmp(name, type->name); if (tmp == 0) { return (type); } else { } __mptr___0 = (struct list_head const *)type->list.next; type = (struct dm_exception_store_type *)__mptr___0 + 0xffffffffffffffa0UL; ldv_33153: ; if ((unsigned long )(& type->list) != (unsigned long )(& _exception_store_types)) { goto ldv_33152; } else { } return ((struct dm_exception_store_type *)0); } } static struct dm_exception_store_type *_get_exception_store_type(char const *name ) { struct dm_exception_store_type *type ; bool tmp ; int tmp___0 ; { spin_lock(& _lock); type = __find_exception_store_type(name); if ((unsigned long )type != (unsigned long )((struct dm_exception_store_type *)0)) { tmp = try_module_get(type->module); if (tmp) { tmp___0 = 0; } else { tmp___0 = 1; } if (tmp___0) { type = (struct dm_exception_store_type *)0; } else { } } else { } spin_unlock(& _lock); return (type); } } static struct dm_exception_store_type *get_type(char const *type_name ) { char *p ; char *type_name_dup ; struct dm_exception_store_type *type ; int tmp ; { type = _get_exception_store_type(type_name); if ((unsigned long )type != (unsigned long )((struct dm_exception_store_type *)0)) { return (type); } else { } type_name_dup = kstrdup(type_name, 208U); if ((unsigned long )type_name_dup == (unsigned long )((char *)0)) { printk("\vdevice-mapper: snapshot exception stores: No memory left to attempt load for \"%s\"\n", type_name); return ((struct dm_exception_store_type *)0); } else { } goto ldv_33167; ldv_33166: p = strrchr((char const *)type_name_dup, 45); if ((unsigned long )p == (unsigned long )((char *)0)) { goto ldv_33165; } else { } *p = 0; ldv_33167: tmp = __request_module(1, "dm-exstore-%s", type_name_dup); if (tmp != 0) { goto ldv_33166; } else { type = _get_exception_store_type(type_name); if ((unsigned long )type == (unsigned long )((struct dm_exception_store_type *)0)) { goto ldv_33166; } else { goto ldv_33165; } } ldv_33165: ; if ((unsigned long )type == (unsigned long )((struct dm_exception_store_type *)0)) { printk("\fdevice-mapper: snapshot exception stores: Module for exstore type \"%s\" not found.\n", type_name); } else { } kfree((void const *)type_name_dup); return (type); } } static void put_type(struct dm_exception_store_type *type ) { { spin_lock(& _lock); module_put(type->module); spin_unlock(& _lock); return; } } int dm_exception_store_type_register(struct dm_exception_store_type *type ) { int r ; struct dm_exception_store_type *tmp ; { r = 0; spin_lock(& _lock); tmp = __find_exception_store_type(type->name); if ((unsigned long )tmp == (unsigned long )((struct dm_exception_store_type *)0)) { list_add(& type->list, & _exception_store_types); } else { r = -17; } spin_unlock(& _lock); return (r); } } static char const __kstrtab_dm_exception_store_type_register[33U] = { 'd', 'm', '_', 'e', 'x', 'c', 'e', 'p', 't', 'i', 'o', 'n', '_', 's', 't', 'o', 'r', 'e', '_', 't', 'y', 'p', 'e', '_', 'r', 'e', 'g', 'i', 's', 't', 'e', 'r', '\000'}; struct kernel_symbol const __ksymtab_dm_exception_store_type_register ; struct kernel_symbol const __ksymtab_dm_exception_store_type_register = {(unsigned long )(& dm_exception_store_type_register), (char const *)(& __kstrtab_dm_exception_store_type_register)}; int dm_exception_store_type_unregister(struct dm_exception_store_type *type ) { struct dm_exception_store_type *tmp ; { spin_lock(& _lock); tmp = __find_exception_store_type(type->name); if ((unsigned long )tmp == (unsigned long )((struct dm_exception_store_type *)0)) { spin_unlock(& _lock); return (-22); } else { } list_del(& type->list); spin_unlock(& _lock); return (0); } } static char const __kstrtab_dm_exception_store_type_unregister[35U] = { 'd', 'm', '_', 'e', 'x', 'c', 'e', 'p', 't', 'i', 'o', 'n', '_', 's', 't', 'o', 'r', 'e', '_', 't', 'y', 'p', 'e', '_', 'u', 'n', 'r', 'e', 'g', 'i', 's', 't', 'e', 'r', '\000'}; struct kernel_symbol const __ksymtab_dm_exception_store_type_unregister ; struct kernel_symbol const __ksymtab_dm_exception_store_type_unregister = {(unsigned long )(& dm_exception_store_type_unregister), (char const *)(& __kstrtab_dm_exception_store_type_unregister)}; static int set_chunk_size(struct dm_exception_store *store , char const *chunk_size_arg , char **error ) { unsigned int chunk_size ; int tmp ; unsigned int tmp___0 ; unsigned int tmp___1 ; int tmp___2 ; { tmp = kstrtouint(chunk_size_arg, 10U, & chunk_size); if (tmp != 0) { *error = (char *)"Invalid chunk size"; return (-22); } else { } if (chunk_size == 0U) { tmp___1 = 0U; store->chunk_shift = tmp___1; tmp___0 = tmp___1; store->chunk_mask = tmp___0; store->chunk_size = tmp___0; return (0); } else { } tmp___2 = dm_exception_store_set_chunk_size(store, chunk_size, error); return (tmp___2); } } int dm_exception_store_set_chunk_size(struct dm_exception_store *store , unsigned int chunk_size , char **error ) { bool tmp ; int tmp___0 ; struct dm_dev *tmp___1 ; unsigned short tmp___2 ; struct dm_dev *tmp___3 ; unsigned short tmp___4 ; int tmp___5 ; { tmp = is_power_of_2((unsigned long )chunk_size); if (tmp) { tmp___0 = 0; } else { tmp___0 = 1; } if (tmp___0) { *error = (char *)"Chunk size is not a power of 2"; return (-22); } else { } tmp___1 = dm_snap_cow(store->snap); tmp___2 = bdev_logical_block_size(tmp___1->bdev); if (chunk_size % (unsigned int )((int )tmp___2 >> 9) != 0U) { *error = (char *)"Chunk size is not a multiple of device blocksize"; return (-22); } else { tmp___3 = dm_snap_origin(store->snap); tmp___4 = bdev_logical_block_size(tmp___3->bdev); if (chunk_size % (unsigned int )((int )tmp___4 >> 9) != 0U) { *error = (char *)"Chunk size is not a multiple of device blocksize"; return (-22); } else { } } if (chunk_size > 4194303U) { *error = (char *)"Chunk size is too high"; return (-22); } else { } store->chunk_size = chunk_size; store->chunk_mask = chunk_size - 1U; tmp___5 = ffs((int )chunk_size); store->chunk_shift = (unsigned int )(tmp___5 + -1); return (0); } } int dm_exception_store_create(struct dm_target *ti , int argc , char **argv , struct dm_snapshot *snap , unsigned int *args_used , struct dm_exception_store **store ) { int r ; struct dm_exception_store_type *type ; struct dm_exception_store *tmp_store ; char persistent ; void *tmp ; unsigned char tmp___0 ; { r = 0; type = (struct dm_exception_store_type *)0; if (argc <= 1) { ti->error = (char *)"Insufficient exception store arguments"; return (-22); } else { } tmp = kmalloc(40UL, 208U); tmp_store = (struct dm_exception_store *)tmp; if ((unsigned long )tmp_store == (unsigned long )((struct dm_exception_store *)0)) { ti->error = (char *)"Exception store allocation failed"; return (-12); } else { } tmp___0 = __toupper((int )((unsigned char )*(*argv))); persistent = (char )tmp___0; if ((int )((signed char )persistent) == 80) { type = get_type("P"); } else if ((int )((signed char )persistent) == 78) { type = get_type("N"); } else { ti->error = (char *)"Persistent flag is not P or N"; r = -22; goto bad_type; } if ((unsigned long )type == (unsigned long )((struct dm_exception_store_type *)0)) { ti->error = (char *)"Exception store type not recognised"; r = -22; goto bad_type; } else { } tmp_store->type = type; tmp_store->snap = snap; r = set_chunk_size(tmp_store, (char const *)*(argv + 1UL), & ti->error); if (r != 0) { goto bad; } else { } r = (*(type->ctr))(tmp_store, 0U, (char **)0); if (r != 0) { ti->error = (char *)"Exception store type constructor failed"; goto bad; } else { } *args_used = 2U; *store = tmp_store; return (0); bad: put_type(type); bad_type: kfree((void const *)tmp_store); return (r); } } static char const __kstrtab_dm_exception_store_create[26U] = { 'd', 'm', '_', 'e', 'x', 'c', 'e', 'p', 't', 'i', 'o', 'n', '_', 's', 't', 'o', 'r', 'e', '_', 'c', 'r', 'e', 'a', 't', 'e', '\000'}; struct kernel_symbol const __ksymtab_dm_exception_store_create ; struct kernel_symbol const __ksymtab_dm_exception_store_create = {(unsigned long )(& dm_exception_store_create), (char const *)(& __kstrtab_dm_exception_store_create)}; void dm_exception_store_destroy(struct dm_exception_store *store ) { { (*((store->type)->dtr))(store); put_type(store->type); kfree((void const *)store); return; } } static char const __kstrtab_dm_exception_store_destroy[27U] = { 'd', 'm', '_', 'e', 'x', 'c', 'e', 'p', 't', 'i', 'o', 'n', '_', 's', 't', 'o', 'r', 'e', '_', 'd', 'e', 's', 't', 'r', 'o', 'y', '\000'}; struct kernel_symbol const __ksymtab_dm_exception_store_destroy ; struct kernel_symbol const __ksymtab_dm_exception_store_destroy = {(unsigned long )(& dm_exception_store_destroy), (char const *)(& __kstrtab_dm_exception_store_destroy)}; int dm_exception_store_init(void) { int r ; { r = dm_transient_snapshot_init(); if (r != 0) { printk("\vdevice-mapper: snapshot exception stores: Unable to register transient exception store type.\n"); goto transient_fail; } else { } r = dm_persistent_snapshot_init(); if (r != 0) { printk("\vdevice-mapper: snapshot exception stores: Unable to register persistent exception store type\n"); goto persistent_fail; } else { } return (0); persistent_fail: dm_transient_snapshot_exit(); transient_fail: ; return (r); } } void dm_exception_store_exit(void) { { dm_persistent_snapshot_exit(); dm_transient_snapshot_exit(); return; } } void *ldv_kmem_cache_alloc_45(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) { void *tmp ; { ldv_check_alloc_flags(flags); tmp = ldv_undef_ptr(); return (tmp); } } void *ldv_kmem_cache_alloc_67(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) ; __inline static void *kmalloc(size_t size , gfp_t flags ) ; static void transient_dtr(struct dm_exception_store *store ) { { kfree((void const *)store->context); return; } } static int transient_read_metadata(struct dm_exception_store *store , int (*callback)(void * , chunk_t , chunk_t ) , void *callback_context ) { { return (0); } } static int transient_prepare_exception(struct dm_exception_store *store , struct dm_exception *e ) { struct transient_c *tc ; sector_t size ; struct dm_dev *tmp ; sector_t tmp___0 ; { tc = (struct transient_c *)store->context; tmp = dm_snap_cow(store->snap); tmp___0 = get_dev_size(tmp->bdev); size = tmp___0; if (tc->next_free + (sector_t )store->chunk_size > size) { return (-1); } else { } e->new_chunk = sector_to_chunk(store, tc->next_free); tc->next_free = tc->next_free + (sector_t )store->chunk_size; return (0); } } static void transient_commit_exception(struct dm_exception_store *store , struct dm_exception *e , void (*callback)(void * , int ) , void *callback_context ) { { (*callback)(callback_context, 1); return; } } static void transient_usage(struct dm_exception_store *store , sector_t *total_sectors , sector_t *sectors_allocated , sector_t *metadata_sectors ) { struct dm_dev *tmp ; { *sectors_allocated = ((struct transient_c *)store->context)->next_free; tmp = dm_snap_cow(store->snap); *total_sectors = get_dev_size(tmp->bdev); *metadata_sectors = 0UL; return; } } static int transient_ctr(struct dm_exception_store *store , unsigned int argc , char **argv ) { struct transient_c *tc ; void *tmp ; { tmp = kmalloc(8UL, 208U); tc = (struct transient_c *)tmp; if ((unsigned long )tc == (unsigned long )((struct transient_c *)0)) { return (-12); } else { } tc->next_free = 0UL; store->context = (void *)tc; return (0); } } static unsigned int transient_status(struct dm_exception_store *store , status_type_t status , char *result , unsigned int maxlen ) { unsigned int sz ; int tmp ; unsigned int tmp___0 ; { sz = 0U; switch ((unsigned int )status) { case 0U: ; goto ldv_33217; case 1U: ; if (sz < maxlen) { tmp = scnprintf(result + (unsigned long )sz, (size_t )(maxlen - sz), " N %llu", (unsigned long long )store->chunk_size); tmp___0 = (unsigned int )tmp; } else { tmp___0 = 0U; } sz = tmp___0 + sz; } ldv_33217: ; return (sz); } } static struct dm_exception_store_type _transient_type = {"transient", & __this_module, & transient_ctr, & transient_dtr, & transient_read_metadata, & transient_prepare_exception, & transient_commit_exception, 0, 0, 0, & transient_status, & transient_usage, {0, 0}}; static struct dm_exception_store_type _transient_compat_type = {"N", & __this_module, & transient_ctr, & transient_dtr, & transient_read_metadata, & transient_prepare_exception, & transient_commit_exception, 0, 0, 0, & transient_status, & transient_usage, {0, 0}}; int dm_transient_snapshot_init(void) { int r ; { r = dm_exception_store_type_register(& _transient_type); if (r != 0) { printk("\fdevice-mapper: transient snapshot: Unable to register transient exception store type\n"); return (r); } else { } r = dm_exception_store_type_register(& _transient_compat_type); if (r != 0) { printk("\fdevice-mapper: transient snapshot: Unable to register old-style transient exception store type\n"); dm_exception_store_type_unregister(& _transient_type); return (r); } else { } return (r); } } void dm_transient_snapshot_exit(void) { { dm_exception_store_type_unregister(& _transient_type); dm_exception_store_type_unregister(& _transient_compat_type); return; } } extern int ldv_release_4(void) ; extern int ldv_probe_4(void) ; extern int ldv_release_3(void) ; extern int ldv_probe_3(void) ; void ldv_initialize_dm_exception_store_type_4(void) { void *tmp ; void *tmp___0 ; { tmp = ldv_init_zalloc(40UL); _transient_type_group1 = (struct dm_exception_store *)tmp; tmp___0 = ldv_init_zalloc(32UL); _transient_type_group0 = (struct dm_exception *)tmp___0; return; } } void ldv_initialize_dm_exception_store_type_3(void) { void *tmp ; void *tmp___0 ; { tmp = ldv_init_zalloc(40UL); _transient_compat_type_group1 = (struct dm_exception_store *)tmp; tmp___0 = ldv_init_zalloc(32UL); _transient_compat_type_group0 = (struct dm_exception *)tmp___0; return; } } void ldv_main_exported_4(void) { char **ldvarg75 ; void *tmp ; int (*ldvarg74)(void * , chunk_t , chunk_t ) ; unsigned int ldvarg76 ; sector_t *ldvarg66 ; void *tmp___0 ; sector_t *ldvarg65 ; void *tmp___1 ; char *ldvarg69 ; void *tmp___2 ; void (*ldvarg72)(void * , int ) ; unsigned int ldvarg68 ; void *ldvarg71 ; void *tmp___3 ; sector_t *ldvarg67 ; void *tmp___4 ; status_type_t ldvarg70 ; void *ldvarg73 ; void *tmp___5 ; int tmp___6 ; { tmp = ldv_init_zalloc(8UL); ldvarg75 = (char **)tmp; tmp___0 = ldv_init_zalloc(8UL); ldvarg66 = (sector_t *)tmp___0; tmp___1 = ldv_init_zalloc(8UL); ldvarg65 = (sector_t *)tmp___1; tmp___2 = ldv_init_zalloc(1UL); ldvarg69 = (char *)tmp___2; tmp___3 = ldv_init_zalloc(1UL); ldvarg71 = tmp___3; tmp___4 = ldv_init_zalloc(8UL); ldvarg67 = (sector_t *)tmp___4; tmp___5 = ldv_init_zalloc(1UL); ldvarg73 = tmp___5; ldv_memset((void *)(& ldvarg74), 0, 8UL); ldv_memset((void *)(& ldvarg76), 0, 4UL); ldv_memset((void *)(& ldvarg72), 0, 8UL); ldv_memset((void *)(& ldvarg68), 0, 4UL); ldv_memset((void *)(& ldvarg70), 0, 4UL); tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_4 == 1) { transient_ctr(_transient_type_group1, ldvarg76, ldvarg75); ldv_state_variable_4 = 1; } else { } if (ldv_state_variable_4 == 2) { transient_ctr(_transient_type_group1, ldvarg76, ldvarg75); ldv_state_variable_4 = 2; } else { } goto ldv_33268; case 1: ; if (ldv_state_variable_4 == 1) { transient_dtr(_transient_type_group1); ldv_state_variable_4 = 1; } else { } if (ldv_state_variable_4 == 2) { transient_dtr(_transient_type_group1); ldv_state_variable_4 = 2; } else { } goto ldv_33268; case 2: ; if (ldv_state_variable_4 == 2) { transient_read_metadata(_transient_type_group1, ldvarg74, ldvarg73); ldv_state_variable_4 = 2; } else { } goto ldv_33268; case 3: ; if (ldv_state_variable_4 == 1) { transient_prepare_exception(_transient_type_group1, _transient_type_group0); ldv_state_variable_4 = 1; } else { } if (ldv_state_variable_4 == 2) { transient_prepare_exception(_transient_type_group1, _transient_type_group0); ldv_state_variable_4 = 2; } else { } goto ldv_33268; case 4: ; if (ldv_state_variable_4 == 1) { transient_commit_exception(_transient_type_group1, _transient_type_group0, ldvarg72, ldvarg71); ldv_state_variable_4 = 1; } else { } if (ldv_state_variable_4 == 2) { transient_commit_exception(_transient_type_group1, _transient_type_group0, ldvarg72, ldvarg71); ldv_state_variable_4 = 2; } else { } goto ldv_33268; case 5: ; if (ldv_state_variable_4 == 1) { transient_status(_transient_type_group1, ldvarg70, ldvarg69, ldvarg68); ldv_state_variable_4 = 1; } else { } if (ldv_state_variable_4 == 2) { transient_status(_transient_type_group1, ldvarg70, ldvarg69, ldvarg68); ldv_state_variable_4 = 2; } else { } goto ldv_33268; case 6: ; if (ldv_state_variable_4 == 1) { transient_usage(_transient_type_group1, ldvarg67, ldvarg66, ldvarg65); ldv_state_variable_4 = 1; } else { } if (ldv_state_variable_4 == 2) { transient_usage(_transient_type_group1, ldvarg67, ldvarg66, ldvarg65); ldv_state_variable_4 = 2; } else { } goto ldv_33268; case 7: ; if (ldv_state_variable_4 == 2) { ldv_release_4(); ldv_state_variable_4 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_33268; case 8: ; if (ldv_state_variable_4 == 1) { ldv_probe_4(); ldv_state_variable_4 = 2; ref_cnt = ref_cnt + 1; } else { } goto ldv_33268; default: ldv_stop(); } ldv_33268: ; return; } } void ldv_main_exported_3(void) { void *ldvarg19 ; void *tmp ; unsigned int ldvarg22 ; sector_t *ldvarg13 ; void *tmp___0 ; void *ldvarg17 ; void *tmp___1 ; unsigned int ldvarg14 ; char **ldvarg21 ; void *tmp___2 ; char *ldvarg15 ; void *tmp___3 ; status_type_t ldvarg16 ; sector_t *ldvarg12 ; void *tmp___4 ; int (*ldvarg20)(void * , chunk_t , chunk_t ) ; sector_t *ldvarg11 ; void *tmp___5 ; void (*ldvarg18)(void * , int ) ; int tmp___6 ; { tmp = ldv_init_zalloc(1UL); ldvarg19 = tmp; tmp___0 = ldv_init_zalloc(8UL); ldvarg13 = (sector_t *)tmp___0; tmp___1 = ldv_init_zalloc(1UL); ldvarg17 = tmp___1; tmp___2 = ldv_init_zalloc(8UL); ldvarg21 = (char **)tmp___2; tmp___3 = ldv_init_zalloc(1UL); ldvarg15 = (char *)tmp___3; tmp___4 = ldv_init_zalloc(8UL); ldvarg12 = (sector_t *)tmp___4; tmp___5 = ldv_init_zalloc(8UL); ldvarg11 = (sector_t *)tmp___5; ldv_memset((void *)(& ldvarg22), 0, 4UL); ldv_memset((void *)(& ldvarg14), 0, 4UL); ldv_memset((void *)(& ldvarg16), 0, 4UL); ldv_memset((void *)(& ldvarg20), 0, 8UL); ldv_memset((void *)(& ldvarg18), 0, 8UL); tmp___6 = __VERIFIER_nondet_int(); switch (tmp___6) { case 0: ; if (ldv_state_variable_3 == 1) { transient_ctr(_transient_compat_type_group1, ldvarg22, ldvarg21); ldv_state_variable_3 = 1; } else { } if (ldv_state_variable_3 == 2) { transient_ctr(_transient_compat_type_group1, ldvarg22, ldvarg21); ldv_state_variable_3 = 2; } else { } goto ldv_33304; case 1: ; if (ldv_state_variable_3 == 1) { transient_dtr(_transient_compat_type_group1); ldv_state_variable_3 = 1; } else { } if (ldv_state_variable_3 == 2) { transient_dtr(_transient_compat_type_group1); ldv_state_variable_3 = 2; } else { } goto ldv_33304; case 2: ; if (ldv_state_variable_3 == 2) { transient_read_metadata(_transient_compat_type_group1, ldvarg20, ldvarg19); ldv_state_variable_3 = 2; } else { } goto ldv_33304; case 3: ; if (ldv_state_variable_3 == 1) { transient_prepare_exception(_transient_compat_type_group1, _transient_compat_type_group0); ldv_state_variable_3 = 1; } else { } if (ldv_state_variable_3 == 2) { transient_prepare_exception(_transient_compat_type_group1, _transient_compat_type_group0); ldv_state_variable_3 = 2; } else { } goto ldv_33304; case 4: ; if (ldv_state_variable_3 == 1) { transient_commit_exception(_transient_compat_type_group1, _transient_compat_type_group0, ldvarg18, ldvarg17); ldv_state_variable_3 = 1; } else { } if (ldv_state_variable_3 == 2) { transient_commit_exception(_transient_compat_type_group1, _transient_compat_type_group0, ldvarg18, ldvarg17); ldv_state_variable_3 = 2; } else { } goto ldv_33304; case 5: ; if (ldv_state_variable_3 == 1) { transient_status(_transient_compat_type_group1, ldvarg16, ldvarg15, ldvarg14); ldv_state_variable_3 = 1; } else { } if (ldv_state_variable_3 == 2) { transient_status(_transient_compat_type_group1, ldvarg16, ldvarg15, ldvarg14); ldv_state_variable_3 = 2; } else { } goto ldv_33304; case 6: ; if (ldv_state_variable_3 == 1) { transient_usage(_transient_compat_type_group1, ldvarg13, ldvarg12, ldvarg11); ldv_state_variable_3 = 1; } else { } if (ldv_state_variable_3 == 2) { transient_usage(_transient_compat_type_group1, ldvarg13, ldvarg12, ldvarg11); ldv_state_variable_3 = 2; } else { } goto ldv_33304; case 7: ; if (ldv_state_variable_3 == 2) { ldv_release_3(); ldv_state_variable_3 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_33304; case 8: ; if (ldv_state_variable_3 == 1) { ldv_probe_3(); ldv_state_variable_3 = 2; ref_cnt = ref_cnt + 1; } else { } goto ldv_33304; default: ldv_stop(); } ldv_33304: ; return; } } void *ldv_kmem_cache_alloc_67(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) { void *tmp ; { ldv_check_alloc_flags(flags); tmp = ldv_undef_ptr(); return (tmp); } } __inline static long ldv__builtin_expect(long exp , long c ) ; extern void *memcpy(void * , void const * , size_t ) ; extern void *memset(void * , int , size_t ) ; __inline static long PTR_ERR(void const *ptr ) ; __inline static bool IS_ERR(void const *ptr ) ; __inline static int atomic_dec_and_test(atomic_t *v ) { char c ; { __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); return ((int )((signed char )c) != 0); } } extern void lockdep_init_map(struct lockdep_map * , char const * , struct lock_class_key * , int ) ; extern void __init_work(struct work_struct * , int ) ; extern void destroy_work_on_stack(struct work_struct * ) ; extern struct workqueue_struct *__alloc_workqueue_key(char const * , unsigned int , int , struct lock_class_key * , char const * , ...) ; extern void destroy_workqueue(struct workqueue_struct * ) ; extern bool queue_work_on(int , struct workqueue_struct * , struct work_struct * ) ; extern void flush_workqueue(struct workqueue_struct * ) ; __inline static bool queue_work(struct workqueue_struct *wq , struct work_struct *work ) { bool tmp ; { tmp = queue_work_on(8192, wq, work); return (tmp); } } void *ldv_kmem_cache_alloc_89(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) ; __inline static void *kmalloc(size_t size , gfp_t flags ) ; void ldv_check_alloc_nonatomic(void) ; void *ldv_vmalloc_92(unsigned long ldv_func_arg1 ) ; void *ldv_vmalloc_94(unsigned long ldv_func_arg1 ) ; void *ldv_vzalloc_93(unsigned long ldv_func_arg1 ) ; extern struct dm_io_client *dm_io_client_create(void) ; extern void dm_io_client_destroy(struct dm_io_client * ) ; extern int dm_io(struct dm_io_request * , unsigned int , struct dm_io_region * , unsigned long * ) ; extern struct dm_bufio_client *dm_bufio_client_create(struct block_device * , unsigned int , unsigned int , unsigned int , void (*)(struct dm_buffer * ) , void (*)(struct dm_buffer * ) ) ; extern void dm_bufio_client_destroy(struct dm_bufio_client * ) ; extern void *dm_bufio_read(struct dm_bufio_client * , sector_t , struct dm_buffer ** ) ; extern void dm_bufio_prefetch(struct dm_bufio_client * , sector_t , unsigned int ) ; extern void dm_bufio_release(struct dm_buffer * ) ; extern void dm_bufio_forget(struct dm_bufio_client * , sector_t ) ; extern void dm_bufio_set_minimum_buffers(struct dm_bufio_client * , unsigned int ) ; extern sector_t dm_bufio_get_device_size(struct dm_bufio_client * ) ; static int alloc_area(struct pstore *ps ) { int r ; size_t len ; { r = -12; len = (size_t )((ps->store)->chunk_size << 9); ps->area = ldv_vmalloc_92(len); if ((unsigned long )ps->area == (unsigned long )((void *)0)) { goto err_area; } else { } ps->zero_area = ldv_vzalloc_93(len); if ((unsigned long )ps->zero_area == (unsigned long )((void *)0)) { goto err_zero_area; } else { } ps->header_area = ldv_vmalloc_94(len); if ((unsigned long )ps->header_area == (unsigned long )((void *)0)) { goto err_header_area; } else { } return (0); err_header_area: vfree((void const *)ps->zero_area); err_zero_area: vfree((void const *)ps->area); err_area: ; return (r); } } static void free_area(struct pstore *ps ) { { vfree((void const *)ps->area); ps->area = (void *)0; vfree((void const *)ps->zero_area); ps->zero_area = (void *)0; vfree((void const *)ps->header_area); ps->header_area = (void *)0; return; } } static void do_metadata(struct work_struct *work ) { struct mdata_req *req ; struct work_struct const *__mptr ; { __mptr = (struct work_struct const *)work; req = (struct mdata_req *)__mptr + 0xfffffffffffffff0UL; req->result = dm_io(req->io_req, 1U, req->where, (unsigned long *)0UL); return; } } static int chunk_io(struct pstore *ps , void *area , chunk_t chunk , int rw , int metadata ) { struct dm_io_region where ; struct dm_dev *tmp ; struct dm_io_request io_req ; struct mdata_req req ; int tmp___0 ; struct lock_class_key __key ; atomic_long_t __constr_expr_0 ; { tmp = dm_snap_cow((ps->store)->snap); where.bdev = tmp->bdev; where.sector = (chunk_t )(ps->store)->chunk_size * chunk; where.count = (unsigned long )(ps->store)->chunk_size; io_req.bi_rw = rw; io_req.mem.type = 2; io_req.mem.offset = 0U; io_req.mem.ptr.vma = area; io_req.notify.fn = (void (*)(unsigned long , void * ))0; io_req.notify.context = 0; io_req.client = ps->io_client; if (metadata == 0) { tmp___0 = dm_io(& io_req, 1U, & where, (unsigned long *)0UL); return (tmp___0); } else { } req.where = & where; req.io_req = & io_req; __init_work(& req.work, 1); __constr_expr_0.counter = 137438953408L; req.work.data = __constr_expr_0; lockdep_init_map(& req.work.lockdep_map, "(&req.work)", & __key, 0); INIT_LIST_HEAD(& req.work.entry); req.work.func = & do_metadata; queue_work(ps->metadata_wq, & req.work); flush_workqueue(ps->metadata_wq); destroy_work_on_stack(& req.work); return (req.result); } } static chunk_t area_location(struct pstore *ps , chunk_t area ) { { return ((chunk_t )(ps->exceptions_per_area + 1U) * area + 1UL); } } static void skip_metadata(struct pstore *ps ) { uint32_t stride ; chunk_t next_free ; int _res ; { stride = ps->exceptions_per_area + 1U; next_free = ps->next_free; _res = (int )(next_free % (chunk_t )stride); next_free = next_free / (chunk_t )stride; if (_res == 1) { ps->next_free = ps->next_free + 1UL; } else { } return; } } static int area_io(struct pstore *ps , int rw ) { int r ; chunk_t chunk ; { chunk = area_location(ps, ps->current_area); r = chunk_io(ps, ps->area, chunk, rw, 0); if (r != 0) { return (r); } else { } return (0); } } static void zero_memory_area(struct pstore *ps ) { { memset(ps->area, 0, (size_t )((ps->store)->chunk_size << 9)); return; } } static int zero_disk_area(struct pstore *ps , chunk_t area ) { chunk_t tmp ; int tmp___0 ; { tmp = area_location(ps, area); tmp___0 = chunk_io(ps, ps->zero_area, tmp, 1, 0); return (tmp___0); } } static int read_header(struct pstore *ps , int *new_snapshot ) { int r ; struct disk_header *dh ; unsigned int chunk_size ; int chunk_size_supplied ; char *chunk_err ; int _max1 ; int _max2 ; struct dm_dev *tmp ; unsigned short tmp___0 ; int tmp___1 ; long tmp___2 ; bool tmp___3 ; { chunk_size_supplied = 1; if ((ps->store)->chunk_size == 0U) { _max1 = 32; tmp = dm_snap_cow((ps->store)->snap); tmp___0 = bdev_logical_block_size(tmp->bdev); _max2 = (int )tmp___0 >> 9; (ps->store)->chunk_size = (unsigned int )(_max1 > _max2 ? _max1 : _max2); (ps->store)->chunk_mask = (ps->store)->chunk_size - 1U; tmp___1 = ffs((int )(ps->store)->chunk_size); (ps->store)->chunk_shift = (unsigned int )(tmp___1 + -1); chunk_size_supplied = 0; } else { } ps->io_client = dm_io_client_create(); tmp___3 = IS_ERR((void const *)ps->io_client); if ((int )tmp___3) { tmp___2 = PTR_ERR((void const *)ps->io_client); return ((int )tmp___2); } else { } r = alloc_area(ps); if (r != 0) { return (r); } else { } r = chunk_io(ps, ps->header_area, 0UL, 0, 1); if (r != 0) { goto bad; } else { } dh = (struct disk_header *)ps->header_area; if (dh->magic == 0U) { *new_snapshot = 1; return (0); } else { } if (dh->magic != 1883336275U) { printk("\fdevice-mapper: persistent snapshot: Invalid or corrupt snapshot\n"); r = -6; goto bad; } else { } *new_snapshot = 0; ps->valid = (int )dh->valid; ps->version = (int )dh->version; chunk_size = dh->chunk_size; if ((ps->store)->chunk_size == chunk_size) { return (0); } else { } if (chunk_size_supplied != 0) { printk("\fdevice-mapper: persistent snapshot: chunk size %u in device metadata overrides table chunk size of %u.\n", chunk_size, (ps->store)->chunk_size); } else { } free_area(ps); r = dm_exception_store_set_chunk_size(ps->store, chunk_size, & chunk_err); if (r != 0) { printk("\vdevice-mapper: persistent snapshot: invalid on-disk chunk size %u: %s.\n", chunk_size, chunk_err); return (r); } else { } r = alloc_area(ps); return (r); bad: free_area(ps); return (r); } } static int write_header(struct pstore *ps ) { struct disk_header *dh ; int tmp ; { memset(ps->header_area, 0, (size_t )((ps->store)->chunk_size << 9)); dh = (struct disk_header *)ps->header_area; dh->magic = 1883336275U; dh->valid = (unsigned int )ps->valid; dh->version = (unsigned int )ps->version; dh->chunk_size = (ps->store)->chunk_size; tmp = chunk_io(ps, ps->header_area, 0UL, 1, 1); return (tmp); } } static struct disk_exception *get_exception(struct pstore *ps , void *ps_area , uint32_t index ) { long tmp ; { tmp = ldv__builtin_expect(ps->exceptions_per_area <= index, 0L); if (tmp != 0L) { __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/1386/dscv_tempdir/dscv/ri/43_2a/drivers/md/dm-snap-persistent.c"), "i" (406), "i" (12UL)); ldv_33354: ; goto ldv_33354; } else { } return ((struct disk_exception *)ps_area + (unsigned long )index); } } static void read_exception(struct pstore *ps , void *ps_area , uint32_t index , struct core_exception *result ) { struct disk_exception *de ; struct disk_exception *tmp ; { tmp = get_exception(ps, ps_area, index); de = tmp; result->old_chunk = de->old_chunk; result->new_chunk = de->new_chunk; return; } } static void write_exception(struct pstore *ps , uint32_t index , struct core_exception *e ) { struct disk_exception *de ; struct disk_exception *tmp ; { tmp = get_exception(ps, ps->area, index); de = tmp; de->old_chunk = e->old_chunk; de->new_chunk = e->new_chunk; return; } } static void clear_exception(struct pstore *ps , uint32_t index ) { struct disk_exception *de ; struct disk_exception *tmp ; { tmp = get_exception(ps, ps->area, index); de = tmp; de->old_chunk = 0ULL; de->new_chunk = 0ULL; return; } } static int insert_exceptions(struct pstore *ps , void *ps_area , int (*callback)(void * , chunk_t , chunk_t ) , void *callback_context , int *full ) { int r ; unsigned int i ; struct core_exception e ; { *full = 1; i = 0U; goto ldv_33388; ldv_33387: read_exception(ps, ps_area, i, & e); if (e.new_chunk == 0ULL) { ps->current_committed = i; *full = 0; goto ldv_33386; } else { } if ((unsigned long long )ps->next_free <= e.new_chunk) { ps->next_free = (chunk_t )(e.new_chunk + 1ULL); } else { } r = (*callback)(callback_context, (chunk_t )e.old_chunk, (chunk_t )e.new_chunk); if (r != 0) { return (r); } else { } i = i + 1U; ldv_33388: ; if (ps->exceptions_per_area > i) { goto ldv_33387; } else { } ldv_33386: ; return (0); } } static int read_exceptions(struct pstore *ps , int (*callback)(void * , chunk_t , chunk_t ) , void *callback_context ) { int r ; int full ; struct dm_bufio_client *client ; chunk_t prefetch_area ; struct dm_dev *tmp ; long tmp___0 ; bool tmp___1 ; struct dm_buffer *bp ; void *area ; chunk_t chunk ; long tmp___2 ; chunk_t pf_chunk ; chunk_t tmp___3 ; sector_t tmp___4 ; long tmp___5 ; long tmp___6 ; long tmp___7 ; bool tmp___8 ; long tmp___9 ; long tmp___10 ; { full = 1; prefetch_area = 0UL; tmp = dm_snap_cow((ps->store)->snap); client = dm_bufio_client_create(tmp->bdev, (ps->store)->chunk_size << 9, 1U, 0U, (void (*)(struct dm_buffer * ))0, (void (*)(struct dm_buffer * ))0); tmp___1 = IS_ERR((void const *)client); if ((int )tmp___1) { tmp___0 = PTR_ERR((void const *)client); return ((int )tmp___0); } else { } dm_bufio_set_minimum_buffers(client, 13U); ps->current_area = 0UL; goto ldv_33409; ldv_33408: tmp___2 = ldv__builtin_expect(ps->current_area > prefetch_area, 0L); if (tmp___2 != 0L) { prefetch_area = ps->current_area; } else { } ldv_33406: tmp___3 = area_location(ps, prefetch_area); pf_chunk = tmp___3; tmp___4 = dm_bufio_get_device_size(client); tmp___5 = ldv__builtin_expect(tmp___4 <= pf_chunk, 0L); if (tmp___5 != 0L) { goto ldv_33405; } else { } dm_bufio_prefetch(client, pf_chunk, 1U); prefetch_area = prefetch_area + 1UL; tmp___6 = ldv__builtin_expect(prefetch_area == 0UL, 0L); if (tmp___6 != 0L) { goto ldv_33405; } else { } if (ps->current_area + 12UL >= prefetch_area) { goto ldv_33406; } else { } ldv_33405: chunk = area_location(ps, ps->current_area); area = dm_bufio_read(client, chunk, & bp); tmp___8 = IS_ERR((void const *)area); tmp___9 = ldv__builtin_expect((long )tmp___8, 0L); if (tmp___9 != 0L) { tmp___7 = PTR_ERR((void const *)area); r = (int )tmp___7; goto ret_destroy_bufio; } else { } r = insert_exceptions(ps, area, callback, callback_context, & full); if (full == 0) { memcpy(ps->area, (void const *)area, (size_t )((ps->store)->chunk_size << 9)); } else { } dm_bufio_release(bp); dm_bufio_forget(client, chunk); tmp___10 = ldv__builtin_expect(r != 0, 0L); if (tmp___10 != 0L) { goto ret_destroy_bufio; } else { } ps->current_area = ps->current_area + 1UL; ldv_33409: ; if (full != 0) { goto ldv_33408; } else { } ps->current_area = ps->current_area - 1UL; skip_metadata(ps); r = 0; ret_destroy_bufio: dm_bufio_client_destroy(client); return (r); } } static struct pstore *get_info(struct dm_exception_store *store ) { { return ((struct pstore *)store->context); } } static void persistent_usage(struct dm_exception_store *store , sector_t *total_sectors , sector_t *sectors_allocated , sector_t *metadata_sectors ) { struct pstore *ps ; struct pstore *tmp ; struct dm_dev *tmp___0 ; { tmp = get_info(store); ps = tmp; *sectors_allocated = ps->next_free * (chunk_t )store->chunk_size; tmp___0 = dm_snap_cow(store->snap); *total_sectors = get_dev_size(tmp___0->bdev); *metadata_sectors = (ps->current_area + 2UL) * (chunk_t )store->chunk_size; return; } } static void persistent_dtr(struct dm_exception_store *store ) { struct pstore *ps ; struct pstore *tmp ; { tmp = get_info(store); ps = tmp; destroy_workqueue(ps->metadata_wq); if ((unsigned long )ps->io_client != (unsigned long )((struct dm_io_client *)0)) { dm_io_client_destroy(ps->io_client); } else { } free_area(ps); vfree((void const *)ps->callbacks); kfree((void const *)ps); return; } } static int persistent_read_metadata(struct dm_exception_store *store , int (*callback)(void * , chunk_t , chunk_t ) , void *callback_context ) { int r ; int new_snapshot ; struct pstore *ps ; struct pstore *tmp ; void *tmp___0 ; { new_snapshot = new_snapshot; tmp = get_info(store); ps = tmp; r = read_header(ps, & new_snapshot); if (r != 0) { return (r); } else { } ps->exceptions_per_area = ((ps->store)->chunk_size << 9) / 16U; tmp___0 = dm_vcalloc((unsigned long )ps->exceptions_per_area, 16UL); ps->callbacks = (struct commit_callback *)tmp___0; if ((unsigned long )ps->callbacks == (unsigned long )((struct commit_callback *)0)) { return (-12); } else { } if (new_snapshot != 0) { r = write_header(ps); if (r != 0) { printk("\fdevice-mapper: persistent snapshot: write_header failed\n"); return (r); } else { } ps->current_area = 0UL; zero_memory_area(ps); r = zero_disk_area(ps, 0UL); if (r != 0) { printk("\fdevice-mapper: persistent snapshot: zero_disk_area(0) failed\n"); } else { } return (r); } else { } if (ps->version != 1) { printk("\fdevice-mapper: persistent snapshot: unable to handle snapshot disk version %d\n", ps->version); return (-22); } else { } if (ps->valid == 0) { return (1); } else { } r = read_exceptions(ps, callback, callback_context); return (r); } } static int persistent_prepare_exception(struct dm_exception_store *store , struct dm_exception *e ) { struct pstore *ps ; struct pstore *tmp ; sector_t size ; struct dm_dev *tmp___0 ; sector_t tmp___1 ; { tmp = get_info(store); ps = tmp; tmp___0 = dm_snap_cow(store->snap); tmp___1 = get_dev_size(tmp___0->bdev); size = tmp___1; if ((ps->next_free + 1UL) * (chunk_t )store->chunk_size > size) { return (-28); } else { } e->new_chunk = ps->next_free; ps->next_free = ps->next_free + 1UL; skip_metadata(ps); atomic_inc(& ps->pending_count); return (0); } } static void persistent_commit_exception(struct dm_exception_store *store , struct dm_exception *e , void (*callback)(void * , int ) , void *callback_context ) { unsigned int i ; struct pstore *ps ; struct pstore *tmp ; struct core_exception ce ; struct commit_callback *cb ; uint32_t tmp___0 ; uint32_t tmp___1 ; int tmp___2 ; int tmp___3 ; int tmp___4 ; { tmp = get_info(store); ps = tmp; ce.old_chunk = (uint64_t )e->old_chunk; ce.new_chunk = (uint64_t )e->new_chunk; tmp___0 = ps->current_committed; ps->current_committed = ps->current_committed + 1U; write_exception(ps, tmp___0, & ce); tmp___1 = ps->callback_count; ps->callback_count = ps->callback_count + 1U; cb = ps->callbacks + (unsigned long )tmp___1; cb->callback = callback; cb->context = callback_context; tmp___2 = atomic_dec_and_test(& ps->pending_count); if (tmp___2 == 0 && ps->current_committed != ps->exceptions_per_area) { return; } else { } if (ps->current_committed == ps->exceptions_per_area) { tmp___3 = zero_disk_area(ps, ps->current_area + 1UL); if (tmp___3 != 0) { ps->valid = 0; } else { } } else { } if (ps->valid != 0) { tmp___4 = area_io(ps, 13329); if (tmp___4 != 0) { ps->valid = 0; } else { } } else { } if (ps->current_committed == ps->exceptions_per_area) { ps->current_committed = 0U; ps->current_area = ps->current_area + 1UL; zero_memory_area(ps); } else { } i = 0U; goto ldv_33455; ldv_33454: cb = ps->callbacks + (unsigned long )i; (*(cb->callback))(cb->context, ps->valid); i = i + 1U; ldv_33455: ; if (ps->callback_count > i) { goto ldv_33454; } else { } ps->callback_count = 0U; return; } } static int persistent_prepare_merge(struct dm_exception_store *store , chunk_t *last_old_chunk , chunk_t *last_new_chunk ) { struct pstore *ps ; struct pstore *tmp ; struct core_exception ce ; int nr_consecutive ; int r ; { tmp = get_info(store); ps = tmp; if (ps->current_committed == 0U) { if (ps->current_area == 0UL) { return (0); } else { } ps->current_area = ps->current_area - 1UL; r = area_io(ps, 0); if (r < 0) { return (r); } else { } ps->current_committed = ps->exceptions_per_area; } else { } read_exception(ps, ps->area, ps->current_committed - 1U, & ce); *last_old_chunk = (chunk_t )ce.old_chunk; *last_new_chunk = (chunk_t )ce.new_chunk; nr_consecutive = 1; goto ldv_33468; ldv_33467: read_exception(ps, ps->area, (ps->current_committed - (uint32_t )nr_consecutive) - 1U, & ce); if (ce.old_chunk != (unsigned long long )(*last_old_chunk - (chunk_t )nr_consecutive) || ce.new_chunk != (unsigned long long )(*last_new_chunk - (chunk_t )nr_consecutive)) { goto ldv_33466; } else { } nr_consecutive = nr_consecutive + 1; ldv_33468: ; if ((uint32_t )nr_consecutive < ps->current_committed) { goto ldv_33467; } else { } ldv_33466: ; return (nr_consecutive); } } static int persistent_commit_merge(struct dm_exception_store *store , int nr_merged ) { int r ; int i ; struct pstore *ps ; struct pstore *tmp ; long tmp___0 ; chunk_t tmp___1 ; { tmp = get_info(store); ps = tmp; tmp___0 = ldv__builtin_expect((uint32_t )nr_merged > ps->current_committed, 0L); if (tmp___0 != 0L) { __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/1386/dscv_tempdir/dscv/ri/43_2a/drivers/md/dm-snap-persistent.c"), "i" (810), "i" (12UL)); ldv_33476: ; goto ldv_33476; } else { } i = 0; goto ldv_33478; ldv_33477: clear_exception(ps, (ps->current_committed - (uint32_t )i) - 1U); i = i + 1; ldv_33478: ; if (i < nr_merged) { goto ldv_33477; } else { } r = area_io(ps, 13329); if (r < 0) { return (r); } else { } ps->current_committed = ps->current_committed - (uint32_t )nr_merged; tmp___1 = area_location(ps, ps->current_area); ps->next_free = (tmp___1 + (chunk_t )ps->current_committed) + 1UL; return (0); } } static void persistent_drop_snapshot(struct dm_exception_store *store ) { struct pstore *ps ; struct pstore *tmp ; int tmp___0 ; { tmp = get_info(store); ps = tmp; ps->valid = 0; tmp___0 = write_header(ps); if (tmp___0 != 0) { printk("\fdevice-mapper: persistent snapshot: write header failed\n"); } else { } return; } } static int persistent_ctr(struct dm_exception_store *store , unsigned int argc , char **argv ) { struct pstore *ps ; void *tmp ; struct lock_class_key __key ; char const *__lock_name ; struct workqueue_struct *tmp___0 ; { tmp = kmalloc(104UL, 208U); ps = (struct pstore *)tmp; if ((unsigned long )ps == (unsigned long )((struct pstore *)0)) { return (-12); } else { } ps->store = store; ps->valid = 1; ps->version = 1; ps->area = (void *)0; ps->zero_area = (void *)0; ps->header_area = (void *)0; ps->next_free = 2UL; ps->current_committed = 0U; ps->callback_count = 0U; atomic_set(& ps->pending_count, 0); ps->callbacks = (struct commit_callback *)0; __lock_name = "\"ksnaphd\""; tmp___0 = __alloc_workqueue_key("ksnaphd", 8U, 0, & __key, __lock_name); ps->metadata_wq = tmp___0; if ((unsigned long )ps->metadata_wq == (unsigned long )((struct workqueue_struct *)0)) { kfree((void const *)ps); printk("\vdevice-mapper: persistent snapshot: couldn\'t start header metadata update thread\n"); return (-12); } else { } store->context = (void *)ps; return (0); } } static unsigned int persistent_status(struct dm_exception_store *store , status_type_t status , char *result , unsigned int maxlen ) { unsigned int sz ; int tmp ; unsigned int tmp___0 ; { sz = 0U; switch ((unsigned int )status) { case 0U: ; goto ldv_33501; case 1U: ; if (sz < maxlen) { tmp = scnprintf(result + (unsigned long )sz, (size_t )(maxlen - sz), " P %llu", (unsigned long long )store->chunk_size); tmp___0 = (unsigned int )tmp; } else { tmp___0 = 0U; } sz = tmp___0 + sz; } ldv_33501: ; return (sz); } } static struct dm_exception_store_type _persistent_type = {"persistent", & __this_module, & persistent_ctr, & persistent_dtr, & persistent_read_metadata, & persistent_prepare_exception, & persistent_commit_exception, & persistent_prepare_merge, & persistent_commit_merge, & persistent_drop_snapshot, & persistent_status, & persistent_usage, {0, 0}}; static struct dm_exception_store_type _persistent_compat_type = {"P", & __this_module, & persistent_ctr, & persistent_dtr, & persistent_read_metadata, & persistent_prepare_exception, & persistent_commit_exception, & persistent_prepare_merge, & persistent_commit_merge, & persistent_drop_snapshot, & persistent_status, & persistent_usage, {0, 0}}; int dm_persistent_snapshot_init(void) { int r ; { r = dm_exception_store_type_register(& _persistent_type); if (r != 0) { printk("\vdevice-mapper: persistent snapshot: Unable to register persistent exception store type\n"); return (r); } else { } r = dm_exception_store_type_register(& _persistent_compat_type); if (r != 0) { printk("\vdevice-mapper: persistent snapshot: Unable to register old-style persistent exception store type\n"); dm_exception_store_type_unregister(& _persistent_type); return (r); } else { } return (r); } } void dm_persistent_snapshot_exit(void) { { dm_exception_store_type_unregister(& _persistent_type); dm_exception_store_type_unregister(& _persistent_compat_type); return; } } extern int ldv_probe_1(void) ; extern int ldv_release_2(void) ; extern int ldv_probe_2(void) ; extern int ldv_release_1(void) ; void ldv_initialize_dm_exception_store_type_1(void) { void *tmp ; void *tmp___0 ; { tmp = ldv_init_zalloc(40UL); _persistent_compat_type_group1 = (struct dm_exception_store *)tmp; tmp___0 = ldv_init_zalloc(32UL); _persistent_compat_type_group0 = (struct dm_exception *)tmp___0; return; } } void ldv_initialize_dm_exception_store_type_2(void) { void *tmp ; void *tmp___0 ; { tmp = ldv_init_zalloc(40UL); _persistent_type_group1 = (struct dm_exception_store *)tmp; tmp___0 = ldv_init_zalloc(32UL); _persistent_type_group0 = (struct dm_exception *)tmp___0; return; } } void ldv_main_exported_1(void) { sector_t *ldvarg52 ; void *tmp ; unsigned int ldvarg55 ; unsigned int ldvarg64 ; sector_t *ldvarg53 ; void *tmp___0 ; int (*ldvarg61)(void * , chunk_t , chunk_t ) ; sector_t *ldvarg54 ; void *tmp___1 ; void *ldvarg58 ; void *tmp___2 ; status_type_t ldvarg57 ; chunk_t *ldvarg50 ; void *tmp___3 ; int ldvarg62 ; char *ldvarg56 ; void *tmp___4 ; void (*ldvarg59)(void * , int ) ; void *ldvarg60 ; void *tmp___5 ; chunk_t *ldvarg51 ; void *tmp___6 ; char **ldvarg63 ; void *tmp___7 ; int tmp___8 ; { tmp = ldv_init_zalloc(8UL); ldvarg52 = (sector_t *)tmp; tmp___0 = ldv_init_zalloc(8UL); ldvarg53 = (sector_t *)tmp___0; tmp___1 = ldv_init_zalloc(8UL); ldvarg54 = (sector_t *)tmp___1; tmp___2 = ldv_init_zalloc(1UL); ldvarg58 = tmp___2; tmp___3 = ldv_init_zalloc(8UL); ldvarg50 = (chunk_t *)tmp___3; tmp___4 = ldv_init_zalloc(1UL); ldvarg56 = (char *)tmp___4; tmp___5 = ldv_init_zalloc(1UL); ldvarg60 = tmp___5; tmp___6 = ldv_init_zalloc(8UL); ldvarg51 = (chunk_t *)tmp___6; tmp___7 = ldv_init_zalloc(8UL); ldvarg63 = (char **)tmp___7; ldv_memset((void *)(& ldvarg55), 0, 4UL); ldv_memset((void *)(& ldvarg64), 0, 4UL); ldv_memset((void *)(& ldvarg61), 0, 8UL); ldv_memset((void *)(& ldvarg57), 0, 4UL); ldv_memset((void *)(& ldvarg62), 0, 4UL); ldv_memset((void *)(& ldvarg59), 0, 8UL); tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_1 == 1) { persistent_ctr(_persistent_compat_type_group1, ldvarg64, ldvarg63); ldv_state_variable_1 = 1; } else { } if (ldv_state_variable_1 == 2) { persistent_ctr(_persistent_compat_type_group1, ldvarg64, ldvarg63); ldv_state_variable_1 = 2; } else { } goto ldv_33555; case 1: ; if (ldv_state_variable_1 == 1) { persistent_commit_merge(_persistent_compat_type_group1, ldvarg62); ldv_state_variable_1 = 1; } else { } if (ldv_state_variable_1 == 2) { persistent_commit_merge(_persistent_compat_type_group1, ldvarg62); ldv_state_variable_1 = 2; } else { } goto ldv_33555; case 2: ; if (ldv_state_variable_1 == 1) { persistent_dtr(_persistent_compat_type_group1); ldv_state_variable_1 = 1; } else { } if (ldv_state_variable_1 == 2) { persistent_dtr(_persistent_compat_type_group1); ldv_state_variable_1 = 2; } else { } goto ldv_33555; case 3: ; if (ldv_state_variable_1 == 2) { persistent_read_metadata(_persistent_compat_type_group1, ldvarg61, ldvarg60); ldv_state_variable_1 = 2; } else { } goto ldv_33555; case 4: ; if (ldv_state_variable_1 == 1) { persistent_prepare_exception(_persistent_compat_type_group1, _persistent_compat_type_group0); ldv_state_variable_1 = 1; } else { } if (ldv_state_variable_1 == 2) { persistent_prepare_exception(_persistent_compat_type_group1, _persistent_compat_type_group0); ldv_state_variable_1 = 2; } else { } goto ldv_33555; case 5: ; if (ldv_state_variable_1 == 1) { persistent_drop_snapshot(_persistent_compat_type_group1); ldv_state_variable_1 = 1; } else { } if (ldv_state_variable_1 == 2) { persistent_drop_snapshot(_persistent_compat_type_group1); ldv_state_variable_1 = 2; } else { } goto ldv_33555; case 6: ; if (ldv_state_variable_1 == 1) { persistent_commit_exception(_persistent_compat_type_group1, _persistent_compat_type_group0, ldvarg59, ldvarg58); ldv_state_variable_1 = 1; } else { } if (ldv_state_variable_1 == 2) { persistent_commit_exception(_persistent_compat_type_group1, _persistent_compat_type_group0, ldvarg59, ldvarg58); ldv_state_variable_1 = 2; } else { } goto ldv_33555; case 7: ; if (ldv_state_variable_1 == 1) { persistent_status(_persistent_compat_type_group1, ldvarg57, ldvarg56, ldvarg55); ldv_state_variable_1 = 1; } else { } if (ldv_state_variable_1 == 2) { persistent_status(_persistent_compat_type_group1, ldvarg57, ldvarg56, ldvarg55); ldv_state_variable_1 = 2; } else { } goto ldv_33555; case 8: ; if (ldv_state_variable_1 == 1) { persistent_usage(_persistent_compat_type_group1, ldvarg54, ldvarg53, ldvarg52); ldv_state_variable_1 = 1; } else { } if (ldv_state_variable_1 == 2) { persistent_usage(_persistent_compat_type_group1, ldvarg54, ldvarg53, ldvarg52); ldv_state_variable_1 = 2; } else { } goto ldv_33555; case 9: ; if (ldv_state_variable_1 == 1) { persistent_prepare_merge(_persistent_compat_type_group1, ldvarg51, ldvarg50); ldv_state_variable_1 = 1; } else { } if (ldv_state_variable_1 == 2) { persistent_prepare_merge(_persistent_compat_type_group1, ldvarg51, ldvarg50); ldv_state_variable_1 = 2; } else { } goto ldv_33555; case 10: ; if (ldv_state_variable_1 == 2) { ldv_release_1(); ldv_state_variable_1 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_33555; case 11: ; if (ldv_state_variable_1 == 1) { ldv_probe_1(); ldv_state_variable_1 = 2; ref_cnt = ref_cnt + 1; } else { } goto ldv_33555; default: ldv_stop(); } ldv_33555: ; return; } } void ldv_main_exported_2(void) { int ldvarg47 ; void (*ldvarg44)(void * , int ) ; unsigned int ldvarg40 ; chunk_t *ldvarg36 ; void *tmp ; sector_t *ldvarg37 ; void *tmp___0 ; char **ldvarg48 ; void *tmp___1 ; int (*ldvarg46)(void * , chunk_t , chunk_t ) ; unsigned int ldvarg49 ; sector_t *ldvarg38 ; void *tmp___2 ; status_type_t ldvarg42 ; void *ldvarg43 ; void *tmp___3 ; char *ldvarg41 ; void *tmp___4 ; chunk_t *ldvarg35 ; void *tmp___5 ; sector_t *ldvarg39 ; void *tmp___6 ; void *ldvarg45 ; void *tmp___7 ; int tmp___8 ; { tmp = ldv_init_zalloc(8UL); ldvarg36 = (chunk_t *)tmp; tmp___0 = ldv_init_zalloc(8UL); ldvarg37 = (sector_t *)tmp___0; tmp___1 = ldv_init_zalloc(8UL); ldvarg48 = (char **)tmp___1; tmp___2 = ldv_init_zalloc(8UL); ldvarg38 = (sector_t *)tmp___2; tmp___3 = ldv_init_zalloc(1UL); ldvarg43 = tmp___3; tmp___4 = ldv_init_zalloc(1UL); ldvarg41 = (char *)tmp___4; tmp___5 = ldv_init_zalloc(8UL); ldvarg35 = (chunk_t *)tmp___5; tmp___6 = ldv_init_zalloc(8UL); ldvarg39 = (sector_t *)tmp___6; tmp___7 = ldv_init_zalloc(1UL); ldvarg45 = tmp___7; ldv_memset((void *)(& ldvarg47), 0, 4UL); ldv_memset((void *)(& ldvarg44), 0, 8UL); ldv_memset((void *)(& ldvarg40), 0, 4UL); ldv_memset((void *)(& ldvarg46), 0, 8UL); ldv_memset((void *)(& ldvarg49), 0, 4UL); ldv_memset((void *)(& ldvarg42), 0, 4UL); tmp___8 = __VERIFIER_nondet_int(); switch (tmp___8) { case 0: ; if (ldv_state_variable_2 == 1) { persistent_ctr(_persistent_type_group1, ldvarg49, ldvarg48); ldv_state_variable_2 = 1; } else { } if (ldv_state_variable_2 == 2) { persistent_ctr(_persistent_type_group1, ldvarg49, ldvarg48); ldv_state_variable_2 = 2; } else { } goto ldv_33597; case 1: ; if (ldv_state_variable_2 == 1) { persistent_commit_merge(_persistent_type_group1, ldvarg47); ldv_state_variable_2 = 1; } else { } if (ldv_state_variable_2 == 2) { persistent_commit_merge(_persistent_type_group1, ldvarg47); ldv_state_variable_2 = 2; } else { } goto ldv_33597; case 2: ; if (ldv_state_variable_2 == 1) { persistent_dtr(_persistent_type_group1); ldv_state_variable_2 = 1; } else { } if (ldv_state_variable_2 == 2) { persistent_dtr(_persistent_type_group1); ldv_state_variable_2 = 2; } else { } goto ldv_33597; case 3: ; if (ldv_state_variable_2 == 2) { persistent_read_metadata(_persistent_type_group1, ldvarg46, ldvarg45); ldv_state_variable_2 = 2; } else { } goto ldv_33597; case 4: ; if (ldv_state_variable_2 == 1) { persistent_prepare_exception(_persistent_type_group1, _persistent_type_group0); ldv_state_variable_2 = 1; } else { } if (ldv_state_variable_2 == 2) { persistent_prepare_exception(_persistent_type_group1, _persistent_type_group0); ldv_state_variable_2 = 2; } else { } goto ldv_33597; case 5: ; if (ldv_state_variable_2 == 1) { persistent_drop_snapshot(_persistent_type_group1); ldv_state_variable_2 = 1; } else { } if (ldv_state_variable_2 == 2) { persistent_drop_snapshot(_persistent_type_group1); ldv_state_variable_2 = 2; } else { } goto ldv_33597; case 6: ; if (ldv_state_variable_2 == 1) { persistent_commit_exception(_persistent_type_group1, _persistent_type_group0, ldvarg44, ldvarg43); ldv_state_variable_2 = 1; } else { } if (ldv_state_variable_2 == 2) { persistent_commit_exception(_persistent_type_group1, _persistent_type_group0, ldvarg44, ldvarg43); ldv_state_variable_2 = 2; } else { } goto ldv_33597; case 7: ; if (ldv_state_variable_2 == 1) { persistent_status(_persistent_type_group1, ldvarg42, ldvarg41, ldvarg40); ldv_state_variable_2 = 1; } else { } if (ldv_state_variable_2 == 2) { persistent_status(_persistent_type_group1, ldvarg42, ldvarg41, ldvarg40); ldv_state_variable_2 = 2; } else { } goto ldv_33597; case 8: ; if (ldv_state_variable_2 == 1) { persistent_usage(_persistent_type_group1, ldvarg39, ldvarg38, ldvarg37); ldv_state_variable_2 = 1; } else { } if (ldv_state_variable_2 == 2) { persistent_usage(_persistent_type_group1, ldvarg39, ldvarg38, ldvarg37); ldv_state_variable_2 = 2; } else { } goto ldv_33597; case 9: ; if (ldv_state_variable_2 == 1) { persistent_prepare_merge(_persistent_type_group1, ldvarg36, ldvarg35); ldv_state_variable_2 = 1; } else { } if (ldv_state_variable_2 == 2) { persistent_prepare_merge(_persistent_type_group1, ldvarg36, ldvarg35); ldv_state_variable_2 = 2; } else { } goto ldv_33597; case 10: ; if (ldv_state_variable_2 == 2) { ldv_release_2(); ldv_state_variable_2 = 1; ref_cnt = ref_cnt - 1; } else { } goto ldv_33597; case 11: ; if (ldv_state_variable_2 == 1) { ldv_probe_2(); ldv_state_variable_2 = 2; ref_cnt = ref_cnt + 1; } else { } goto ldv_33597; default: ldv_stop(); } ldv_33597: ; return; } } void *ldv_kmem_cache_alloc_89(struct kmem_cache *ldv_func_arg1 , gfp_t flags ) { void *tmp ; { ldv_check_alloc_flags(flags); tmp = ldv_undef_ptr(); return (tmp); } } void *ldv_vmalloc_92(unsigned long ldv_func_arg1 ) { void *tmp ; { ldv_check_alloc_nonatomic(); tmp = ldv_undef_ptr(); return (tmp); } } void *ldv_vzalloc_93(unsigned long ldv_func_arg1 ) { void *tmp ; { ldv_check_alloc_nonatomic(); tmp = ldv_undef_ptr(); return (tmp); } } void *ldv_vmalloc_94(unsigned long ldv_func_arg1 ) { void *tmp ; { ldv_check_alloc_nonatomic(); tmp = ldv_undef_ptr(); return (tmp); } } __inline static void ldv_error(void) { { ERROR: ; __VERIFIER_error(); } } bool ldv_is_err(void const *ptr ) { { return ((unsigned long )ptr > 2012UL); } } void *ldv_err_ptr(long error ) { { return ((void *)(2012L - error)); } } long ldv_ptr_err(void const *ptr ) { { return ((long )(2012UL - (unsigned long )ptr)); } } bool ldv_is_err_or_null(void const *ptr ) { bool tmp ; int tmp___0 ; { if ((unsigned long )ptr == (unsigned long )((void const *)0)) { tmp___0 = 1; } else { tmp = ldv_is_err(ptr); if ((int )tmp) { tmp___0 = 1; } else { tmp___0 = 0; } } return ((bool )tmp___0); } } int ldv_spin = 0; void ldv_check_alloc_flags(gfp_t flags ) { { if (ldv_spin != 0 && (flags & 16U) != 0U) { ldv_error(); } else { } return; } } extern struct page *ldv_some_page(void) ; struct page *ldv_check_alloc_flags_and_return_some_page(gfp_t flags ) { struct page *tmp ; { if (ldv_spin != 0 && (flags & 16U) != 0U) { ldv_error(); } else { } tmp = ldv_some_page(); return (tmp); } } void ldv_check_alloc_nonatomic(void) { { if (ldv_spin != 0) { ldv_error(); } else { } return; } } void ldv_spin_lock(void) { { ldv_spin = 1; return; } } void ldv_spin_unlock(void) { { ldv_spin = 0; return; } } int ldv_spin_trylock(void) { int is_lock ; { is_lock = ldv_undef_int(); if (is_lock != 0) { return (0); } else { ldv_spin = 1; return (1); } } }