cachefiles_get_directory identifier - Linux source code next-20260811

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linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

fs/cachefiles/internal.h, line 286 (as a prototype)

Defined in 1 files as a function:

fs/cachefiles/namei.c, line 84 (as a function)

Referenced in 2 files:

Smatch caller information:

fs/cachefiles/cache.c cachefiles_add_cache() -> cachefiles_get_directory()

Type	Parameter	Key	Value
PARAM_VALUE	0	cache	4096-ptr_max
PARAM_VALUE	0	cache->bcull	0
PARAM_VALUE	0	cache->bcull_percent	1-4294967294
PARAM_VALUE	0	cache->brun	0
PARAM_VALUE	0	cache->brun_percent	2-99
PARAM_VALUE	0	cache->bshift	0-63
PARAM_VALUE	0	cache->bstop	0
PARAM_VALUE	0	cache->bstop_percent	0-4294967294
PARAM_VALUE	0	cache->cache_cred	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->group_info	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->jit_keyring	1
PARAM_VALUE	0	cache->cache_cred->non_rcu	0
PARAM_VALUE	0	cache->cache_cred->process_keyring	0,4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->process_keyring->user->lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	cache->cache_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->request_key_auth	0,4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->request_key_auth->user->lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	cache->cache_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->security	0,4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->session_keyring	0,4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->session_keyring->user->lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	cache->cache_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->thread_keyring	0,4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->thread_keyring->user->lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	cache->cache_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->ucounts	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->ucounts->ns->work.entry.next	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->ucounts->ns->work.entry.next->prev	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->usage.counter	1
PARAM_VALUE	0	cache->cache_cred->user	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->user->uidhash_node->next->pprev	1-u64max
PARAM_VALUE	0	cache->cache_cred->user->uidhash_node.next->pprev	1-u64max
PARAM_VALUE	0	cache->cache_cred->user_ns->work.entry.next	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->user_ns->work.entry.next->prev	4096-ptr_max
PARAM_VALUE	0	cache->daemon_mutex.dep_map->name	0-255
PARAM_VALUE	0	cache->daemon_mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	cache->daemon_mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	cache->daemon_mutex.first_waiter->list.prev->prev	5159360019465732096
PARAM_VALUE	0	cache->daemon_mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	cache->daemon_mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	cache->daemon_mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	cache->daemon_mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	0	cache->fcull	0
PARAM_VALUE	0	cache->fcull_percent	1-4294967294
PARAM_VALUE	0	cache->frun	0
PARAM_VALUE	0	cache->frun_percent	2-99
PARAM_VALUE	0	cache->fstop	0
PARAM_VALUE	0	cache->fstop_percent	0-4294967294
PARAM_VALUE	0	cache->mnt	4096-ptr_max
PARAM_VALUE	0	cache->rootdirname	4096-ptr_max
PARAM_VALUE	0	cache->tag	1-u64max
PARAM_VALUE	1	dir	4096-ptr_max
PARAM_VALUE	1	dir->d_sb	4096-ptr_max
PARAM_VALUE	1	dir->d_sb->s_blocksize	0-4096
PARAM_VALUE	1	dir->d_sb->s_op	4096-ptr_max
PARAM_VALUE	1	dir->d_sb->s_op->statfs	4096-ptr_max
PARAM_VALUE	1	dir->d_sb->s_op->sync_fs	4096-ptr_max
PARAM_VALUE	2	dirname	6635405425222115328
PARAM_VALUE	3	_is_new	0
BUF_SIZE	0	cache	s32min-(-2),1-s32max
BUF_SIZE	0	cache	s32min-(-2),1-s32max
BUF_SIZE	2	dirname	6
CAPPED_DATA	0	cache->bcull_percent	1
CAPPED_DATA	0	cache->bstop_percent	1
CAPPED_DATA	0	cache->fcull_percent	1
CAPPED_DATA	0	cache->fstop_percent	1
DATA_SOURCE	0	cache	$0
FUZZY_MAX	1	dir->d_sb->s_blocksize	4096
STR_LEN	0	cache	5
TERMINATED	2	dirname	1
HARD_MAX	0	cache->brun_percent	99
HARD_MAX	0	cache->frun_percent	99
HARD_MAX	1	dir->d_sb->s_blocksize	4096
LOCK2	0	&cache->daemon_mutex
TYPE_LOCK		(struct cachefiles_cache)->daemon_mutex

fs/cachefiles/cache.c cachefiles_add_cache() -> cachefiles_get_directory()

Type	Parameter	Key	Value
PARAM_VALUE	0	cache	4096-ptr_max
PARAM_VALUE	0	cache->bcull	0
PARAM_VALUE	0	cache->bcull_percent	1-4294967294
PARAM_VALUE	0	cache->brun	0
PARAM_VALUE	0	cache->brun_percent	2-99
PARAM_VALUE	0	cache->bshift	0-63
PARAM_VALUE	0	cache->bstop	0
PARAM_VALUE	0	cache->bstop_percent	0-4294967294
PARAM_VALUE	0	cache->cache_cred	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->group_info	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->jit_keyring	1
PARAM_VALUE	0	cache->cache_cred->non_rcu	0
PARAM_VALUE	0	cache->cache_cred->process_keyring	0,4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->process_keyring->user->lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	cache->cache_cred->process_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->process_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->request_key_auth	0,4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->request_key_auth->user->lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	cache->cache_cred->request_key_auth->user->qnbytes	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->request_key_auth->user->qnkeys	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->security	0,4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->session_keyring	0,4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->session_keyring->user->lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	cache->cache_cred->session_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->session_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->thread_keyring	0,4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->thread_keyring->user->lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	cache->cache_cred->thread_keyring->user->qnbytes	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->thread_keyring->user->qnkeys	s32min-s32max
PARAM_VALUE	0	cache->cache_cred->ucounts	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->ucounts->ns->work.entry.next	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->ucounts->ns->work.entry.next->prev	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->usage.counter	1
PARAM_VALUE	0	cache->cache_cred->user	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->user->uidhash_node->next->pprev	1-u64max
PARAM_VALUE	0	cache->cache_cred->user->uidhash_node.next->pprev	1-u64max
PARAM_VALUE	0	cache->cache_cred->user_ns->work.entry.next	4096-ptr_max
PARAM_VALUE	0	cache->cache_cred->user_ns->work.entry.next->prev	4096-ptr_max
PARAM_VALUE	0	cache->daemon_mutex.dep_map->name	0-255
PARAM_VALUE	0	cache->daemon_mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	cache->daemon_mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	cache->daemon_mutex.first_waiter->list.prev->prev	5159360019465732096
PARAM_VALUE	0	cache->daemon_mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	cache->daemon_mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	cache->daemon_mutex.wait_lock.owner	(-1)
PARAM_VALUE	0	cache->daemon_mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	0	cache->fcull	0
PARAM_VALUE	0	cache->fcull_percent	1-4294967294
PARAM_VALUE	0	cache->frun	0
PARAM_VALUE	0	cache->frun_percent	2-99
PARAM_VALUE	0	cache->fstop	0
PARAM_VALUE	0	cache->fstop_percent	0-4294967294
PARAM_VALUE	0	cache->mnt	4096-ptr_max
PARAM_VALUE	0	cache->rootdirname	4096-ptr_max
PARAM_VALUE	0	cache->store	0,4096-ptr_max
PARAM_VALUE	0	cache->store->d_hash.pprev	0
PARAM_VALUE	0	cache->store->d_inode	0
PARAM_VALUE	0	cache->store->waiters	0
PARAM_VALUE	0	cache->tag	1-u64max
PARAM_VALUE	1	dir	4096-ptr_max
PARAM_VALUE	1	dir->d_children->first->pprev	1-u64max
PARAM_VALUE	1	dir->d_children.first	4096-ptr_max
PARAM_VALUE	1	dir->d_children.first->pprev	0
PARAM_VALUE	1	dir->d_inode->i_lock.rlock.dep_map->name	0-255
PARAM_VALUE	1	dir->d_inode->i_rwsem.dep_map->name	0-255
PARAM_VALUE	1	dir->d_inode->i_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	1	dir->d_inode->i_rwsem.first_waiter->list.next	2624917664208203776
PARAM_VALUE	1	dir->d_inode->i_rwsem.first_waiter->list.prev	2624917664208203776
PARAM_VALUE	1	dir->d_inode->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	dir->d_inode->i_rwsem.osq.tail.counter	0-s32max
PARAM_VALUE	1	dir->d_sb	4096-ptr_max
PARAM_VALUE	1	dir->d_sb->__s_d_op	0,4096-ptr_max
PARAM_VALUE	1	dir->d_sb->s_blocksize	0-4096
PARAM_VALUE	1	dir->d_sb->s_fs_info->s_bmap_bits	0-4294967295
PARAM_VALUE	1	dir->d_sb->s_fs_info->s_bmap_count	0-4294967295
PARAM_VALUE	1	dir->d_sb->s_fs_info->s_data_blksize	0-4294967295
PARAM_VALUE	1	dir->d_sb->s_fs_info->s_hashsize	s32min-s32max
PARAM_VALUE	1	dir->d_sb->s_fs_info->s_last_bmap	0-4294967295
PARAM_VALUE	1	dir->d_sb->s_fs_info->s_mode	0-u16max
PARAM_VALUE	1	dir->d_sb->s_fs_info->s_partition_size	s32min-s32max
PARAM_VALUE	1	dir->d_sb->s_fs_info->s_reserved	s32min-s32max
PARAM_VALUE	1	dir->d_sb->s_fs_info->s_root_block	0-4294967295
PARAM_VALUE	1	dir->d_sb->s_fs_info->work_queued	s32min-s32max
PARAM_VALUE	1	dir->d_sb->s_op	4096-ptr_max
PARAM_VALUE	1	dir->d_sb->s_op->statfs	4096-ptr_max
PARAM_VALUE	1	dir->d_sb->s_op->sync_fs	4096-ptr_max
PARAM_VALUE	2	dirname	1330469125255348224
PARAM_VALUE	3	_is_new	0
BUF_SIZE	0	cache	s32min-(-2),1-s32max
BUF_SIZE	0	cache	s32min-(-2),1-s32max
BUF_SIZE	0	cache->store	(-1),1-s32max
BUF_SIZE	2	dirname	10
CAPPED_DATA	0	cache->bcull_percent	1
CAPPED_DATA	0	cache->bstop_percent	1
CAPPED_DATA	0	cache->fcull_percent	1
CAPPED_DATA	0	cache->fstop_percent	1
DATA_SOURCE	0	cache	$0
FUZZY_MAX	1	dir->d_sb->s_blocksize	4096
STR_LEN	0	cache	9
TERMINATED	2	dirname	1
HARD_MAX	0	cache->brun_percent	99
HARD_MAX	0	cache->frun_percent	99
HARD_MAX	1	dir->d_sb->s_blocksize	4096
LOCK2	0	&cache->daemon_mutex
TYPE_LOCK		(struct cachefiles_cache)->daemon_mutex

fs/cachefiles/volume.c cachefiles_acquire_volume() -> cachefiles_get_directory()

Type	Parameter	Key	Value
PARAM_VALUE	0	cache	4096-ptr_max
PARAM_VALUE	0	cache->store->d_inode->i_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	cache->store->d_inode->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	dir->d_inode->i_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	1	dir->d_inode->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	2	dirname	4096-ptr_max
PARAM_VALUE	3	_is_new	7015479295010840576
PARAM_VALUE	3	*_is_new	0
BUF_SIZE	0	cache	s32min-(-2),1-s32max
BUF_SIZE	0	cache	s32min-(-2),1-s32max
BUF_SIZE	2	dirname	3-258
BUF_SIZE	2	dirname	3-258
DATA_SOURCE	2	dirname	r _kmalloc_noprof
TERMINATED	2	dirname	1
UNITS	1	dir	unit_jiffy
HALF_LOCKED2		&pool->lock
HALF_LOCKED2	0	&cache->store->d_inode->i_rwsem
HALF_LOCKED2	1	&dir->d_inode->i_rwsem

fs/cachefiles/volume.c cachefiles_acquire_volume() -> cachefiles_get_directory()

Type	Parameter	Key	Value
PARAM_VALUE	0	cache	4096-ptr_max
PARAM_VALUE	0	cache->store->d_inode->i_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	cache->store->d_inode->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	dir	0,4096-ptr_max
PARAM_VALUE	1	dir->d_alias->next->pprev	1-u64max
PARAM_VALUE	1	dir->d_fsdata->active.counter	s32min-s32max
PARAM_VALUE	1	dir->d_fsdata->d_flags	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_fsdata	0
PARAM_VALUE	1	dir->d_fsdata->d_hash.pprev	0
PARAM_VALUE	1	dir->d_fsdata->d_inode	0
PARAM_VALUE	1	dir->d_fsdata->d_inode->__i_nlink	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_atime_nsec	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_blkbits	0-255
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_bytes	0-u16max
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_ctime_nsec	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_dir_seq	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_flags	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_fsnotify_mask	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_generation	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_linklen	s32min-s32max
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_mode	0-u16max
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_mtime_nsec	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_nlink	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_opflags	0-u16max
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_rdev	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_wb_frn_avg_time	0-u16max
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_wb_frn_history	0-u16max
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_wb_frn_winner	s32min-s32max
PARAM_VALUE	1	dir->d_fsdata->d_inode->i_write_hint	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->d_lockref.count	s32min-s32max
PARAM_VALUE	1	dir->d_fsdata->d_rcu.next	0
PARAM_VALUE	1	dir->d_fsdata->data->ref.refs.counter	s32min-s32max
PARAM_VALUE	1	dir->d_fsdata->head.first	0
PARAM_VALUE	1	dir->d_fsdata->kref.refcount.refs.counter	s32min-s32max
PARAM_VALUE	1	dir->d_fsdata->lease_shared_gen	0
PARAM_VALUE	1	dir->d_fsdata->management_timer.flags	0-4294967295
PARAM_VALUE	1	dir->d_fsdata->owner->refcnt.counter	0-s32max
PARAM_VALUE	1	dir->d_fsdata->ref.refs.counter	s32min-s32max
PARAM_VALUE	1	dir->d_fsdata->waiters	0
PARAM_VALUE	1	dir->d_hash.pprev	0
PARAM_VALUE	1	dir->d_inode	0
PARAM_VALUE	1	dir->d_inode->i_lock.rlock.dep_map->name	0-255
PARAM_VALUE	1	dir->d_inode->i_rwsem.dep_map->name	0-255
PARAM_VALUE	1	dir->d_inode->i_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	1	dir->d_inode->i_rwsem.first_waiter->list.next	2624917664208203776
PARAM_VALUE	1	dir->d_inode->i_rwsem.first_waiter->list.prev	2624917664208203776
PARAM_VALUE	1	dir->d_inode->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	dir->d_inode->i_rwsem.osq.tail.counter	0-s32max
PARAM_VALUE	1	dir->d_inode->i_sb->s_cop->inode_info_offs	1632,1720,1808,2632,2648
PARAM_VALUE	1	dir->d_op->d_dname	0,4096-ptr_max
PARAM_VALUE	1	dir->d_op->d_iput	0,4096-ptr_max
PARAM_VALUE	1	dir->d_op->d_prune	0,4096-ptr_max
PARAM_VALUE	1	dir->d_op->d_real	0,4096-ptr_max
PARAM_VALUE	1	dir->d_parent->d_inode->i_rwsem.dep_map->name	0-255
PARAM_VALUE	1	dir->d_parent->d_inode->i_rwsem.first_waiter->handoff_set	1
PARAM_VALUE	1	dir->d_parent->d_inode->i_rwsem.first_waiter->type	0-1
PARAM_VALUE	1	dir->d_parent->d_sb->__s_d_op->d_init	0,2385819921126617088,7057831443282669568,7824184004865302528
PARAM_VALUE	1	dir->d_parent->d_sb->__s_d_op->d_iput	0,170374395438985216,837750826476904448,5086081384299388928,8216155483032948736
PARAM_VALUE	1	dir->d_parent->d_sb->__s_d_op->d_manage	0,1859587847549206528
PARAM_VALUE	1	dir->d_parent->d_sb->__s_d_op->d_prune	0,2225594340392566784,7225953709177749504
PARAM_VALUE	1	dir->d_parent->d_sb->__s_d_op->d_real	0,4509355519306412032
PARAM_VALUE	1	dir->d_sb->__s_d_op->d_automount	0,2908707185815040000,3401111987815645184,6746145930460459008,7190988915944083456,7386785427940065280,8018779550845526016
PARAM_VALUE	1	dir->d_sb->__s_d_op->d_init	0,2385819921126617088,7057831443282669568,7824184004865302528
PARAM_VALUE	1	dir->d_sb->__s_d_op->d_iput	0,170374395438985216,837750826476904448,5086081384299388928,8216155483032948736
PARAM_VALUE	1	dir->d_sb->__s_d_op->d_manage	0,1859587847549206528
PARAM_VALUE	1	dir->d_sb->__s_d_op->d_prune	0,2225594340392566784,7225953709177749504
PARAM_VALUE	1	dir->d_sb->__s_d_op->d_real	0,4509355519306412032
PARAM_VALUE	1	dir->d_sb->__s_d_op->d_unalias_trylock	0,6635409759016140800
PARAM_VALUE	1	dir->d_sb->__s_d_op->d_unalias_unlock	0,6336447517789900800
PARAM_VALUE	1	dir->d_sb->__s_d_op->d_weak_revalidate	0,1549882712720502784,5632434648052031488,5669063523602272256,7231033168839651328
PARAM_VALUE	1	dir->d_sb->s_fs_info->lookup_lock.rlock.dep_map->name	0-255
PARAM_VALUE	1	dir->d_sb->s_roots_lock.rlock.dep_map->name	0-255
PARAM_VALUE	1	dir->d_sib->next->pprev	1-u64max
PARAM_VALUE	1	dir->waiters	0
PARAM_VALUE	2	dirname	4096-ptr_max
PARAM_VALUE	3	_is_new	0
BUF_SIZE	0	cache	s32min-(-2),1-s32max
BUF_SIZE	0	cache	s32min-(-2),1-s32max
BUF_SIZE	1	dir	(-1),1-s32max
BUF_SIZE	1	dir	(-1),1-s32max
BUF_SIZE	2	dirname	3-258
BUF_SIZE	2	dirname	3-258
DATA_SOURCE	1	dir	r cachefiles_get_directory
DATA_SOURCE	2	dirname	r _kmalloc_noprof
TERMINATED	2	dirname	1
HALF_LOCKED2		&pool->lock
HALF_LOCKED2	0	&cache->store->d_inode->i_rwsem