prevent_background_work identifier - Linux source code next-20260811

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linux

Versions

FIXME
- FIXME
  - next-20260811

Defined in 1 files as a function:

drivers/md/dm-cache-target.c, line 1031 (as a function)

Referenced in 1 files:

drivers/md/dm-cache-target.c
- line 2596
- line 2810

Smatch caller information:

drivers/md/dm-cache-target.c cache_create() -> prevent_background_work()

Type	Parameter	Key	Value
PARAM_VALUE	0	cache	4096-ptr_max
PARAM_VALUE	0	cache->background_work_lock.count.counter	0
PARAM_VALUE	0	cache->background_work_lock.dep_map->name	0-255
PARAM_VALUE	0	cache->background_work_lock.first_waiter	0
PARAM_VALUE	0	cache->background_work_lock.magic	4096-ptr_max
PARAM_VALUE	0	cache->background_work_lock.osq.tail.counter	0
PARAM_VALUE	0	cache->background_work_lock.owner.counter	0
PARAM_VALUE	0	cache->cache_dev	4096-ptr_max
PARAM_VALUE	0	cache->cmd	4096-ptr_max
PARAM_VALUE	0	cache->cmd->bm->read_only	0-1
PARAM_VALUE	0	cache->cmd->fail_io	0-1
PARAM_VALUE	0	cache->cmd->root_lock.dep_map->name	0-255
PARAM_VALUE	0	cache->cmd->root_lock.first_waiter->handoff_set	1
PARAM_VALUE	0	cache->cmd->root_lock.first_waiter->list.next	2212933610777083904
PARAM_VALUE	0	cache->cmd->root_lock.first_waiter->list.prev	2212933610777083904
PARAM_VALUE	0	cache->cmd->root_lock.first_waiter->type	0-1
PARAM_VALUE	0	cache->cmd->root_lock.osq.tail.counter	0-s32max
PARAM_VALUE	0	cache->commit_requested	0
PARAM_VALUE	0	cache->committer.bios.head	0
PARAM_VALUE	0	cache->committer.bios.tail	0
PARAM_VALUE	0	cache->committer.commit_context	4096-ptr_max
PARAM_VALUE	0	cache->committer.commit_op	5332457082337288192
PARAM_VALUE	0	cache->committer.commit_scheduled	0
PARAM_VALUE	0	cache->committer.issue_context	4096-ptr_max
PARAM_VALUE	0	cache->committer.issue_op	3770976700352299008
PARAM_VALUE	0	cache->committer.wq	4096-ptr_max
PARAM_VALUE	0	cache->copier	4096-ptr_max
PARAM_VALUE	0	cache->copier->io_client->bios.back_pad	0,64
PARAM_VALUE	0	cache->copier->io_client->bios.bio_pool.alloc	7276475779886346240
PARAM_VALUE	0	cache->copier->io_client->bios.bio_pool.curr_nr	1-s32max
PARAM_VALUE	0	cache->copier->io_client->bios.bio_pool.free	8263660038527102976
PARAM_VALUE	0	cache->copier->io_client->bios.bio_pool.min_nr	1-1024
PARAM_VALUE	0	cache->copier->io_client->bios.bvec_pool.alloc	7276475779886346240
PARAM_VALUE	0	cache->copier->io_client->bios.bvec_pool.curr_nr	1-s32max
PARAM_VALUE	0	cache->copier->io_client->bios.bvec_pool.free	8263660038527102976
PARAM_VALUE	0	cache->copier->io_client->pool.alloc	7276475779886346240
PARAM_VALUE	0	cache->copier->io_client->pool.curr_nr	1-s32max
PARAM_VALUE	0	cache->copier->io_client->pool.free	8263660038527102976
PARAM_VALUE	0	cache->copier->io_client->pool.min_nr	1-1024
PARAM_VALUE	0	cache->copier->job_pool.alloc	7276475779886346240
PARAM_VALUE	0	cache->copier->job_pool.curr_nr	1-s32max
PARAM_VALUE	0	cache->copier->job_pool.free	8263660038527102976
PARAM_VALUE	0	cache->copier->job_pool.min_nr	8
PARAM_VALUE	0	cache->copier->nr_jobs.counter	0
PARAM_VALUE	0	cache->copier->nr_reserved_pages	1-2560
PARAM_VALUE	0	cache->copier->sub_job_size	2-20480
PARAM_VALUE	0	cache->copier->throttle	2486065507138015232
PARAM_VALUE	0	cache->deferred_bios.head	0
PARAM_VALUE	0	cache->deferred_bios.tail	0
PARAM_VALUE	0	cache->dirty_bitset	1-u64max
PARAM_VALUE	0	cache->discard_bitset	1-u64max
PARAM_VALUE	0	cache->discard_block_size	64-4194304
PARAM_VALUE	0	cache->features.io_mode	0-2
PARAM_VALUE	0	cache->features.metadata_version	1-2
PARAM_VALUE	0	cache->features.mode	0
PARAM_VALUE	0	cache->invalid_bitset	1-u64max
PARAM_VALUE	0	cache->invalidate	0
PARAM_VALUE	0	cache->invalidation_requests.next	4096-ptr_max
PARAM_VALUE	0	cache->invalidation_requests.next->next	4096-ptr_max
PARAM_VALUE	0	cache->invalidation_requests.prev	4096-ptr_max
PARAM_VALUE	0	cache->invalidation_requests.prev->next	4096-ptr_max
PARAM_VALUE	0	cache->invalidation_requests.prev->prev	4096-ptr_max
PARAM_VALUE	0	cache->loaded_discards	0
PARAM_VALUE	0	cache->loaded_mappings	0
PARAM_VALUE	0	cache->metadata_dev	4096-ptr_max
PARAM_VALUE	0	cache->migration_pool.alloc	7276475779886346240
PARAM_VALUE	0	cache->migration_pool.curr_nr	1-s32max
PARAM_VALUE	0	cache->migration_pool.elements	1-u64max
PARAM_VALUE	0	cache->migration_pool.free	8263660038527102976
PARAM_VALUE	0	cache->migration_pool.min_nr	128
PARAM_VALUE	0	cache->migration_pool.pool_data	0,4096-ptr_max
PARAM_VALUE	0	cache->migration_pool.wait.head.next	4096-ptr_max
PARAM_VALUE	0	cache->migration_pool.wait.head.next->next	4096-ptr_max
PARAM_VALUE	0	cache->migration_pool.wait.head.prev	4096-ptr_max
PARAM_VALUE	0	cache->migration_pool.wait.head.prev->next	4096-ptr_max
PARAM_VALUE	0	cache->migration_pool.wait.head.prev->prev	4096-ptr_max
PARAM_VALUE	0	cache->migration_wait.head.next	4096-ptr_max
PARAM_VALUE	0	cache->migration_wait.head.next->next	4096-ptr_max
PARAM_VALUE	0	cache->migration_wait.head.prev	4096-ptr_max
PARAM_VALUE	0	cache->migration_wait.head.prev->next	4096-ptr_max
PARAM_VALUE	0	cache->migration_wait.head.prev->prev	4096-ptr_max
PARAM_VALUE	0	cache->need_tick_bio	1
PARAM_VALUE	0	cache->nr_allocated_migrations.counter	0
PARAM_VALUE	0	cache->nr_dirty.counter	0
PARAM_VALUE	0	cache->nr_io_migrations.counter	0
PARAM_VALUE	0	cache->origin_blocks	0-288230376151711743
PARAM_VALUE	0	cache->origin_dev	4096-ptr_max
PARAM_VALUE	0	cache->origin_sectors	1-u64max
PARAM_VALUE	0	cache->policy	4096-ptr_max
PARAM_VALUE	0	cache->policy->private	4096-ptr_max
PARAM_VALUE	0	cache->prison	4096-ptr_max
PARAM_VALUE	0	cache->prison->cell_pool.alloc	7276475779886346240
PARAM_VALUE	0	cache->prison->cell_pool.curr_nr	1-s32max
PARAM_VALUE	0	cache->prison->cell_pool.free	8263660038527102976
PARAM_VALUE	0	cache->prison->cell_pool.min_nr	1024
PARAM_VALUE	0	cache->prison->wq	4096-ptr_max
PARAM_VALUE	0	cache->sectors_per_block	64-2097152
PARAM_VALUE	0	cache->sized	0
PARAM_VALUE	0	cache->stats.cache_cell_clash.counter	0
PARAM_VALUE	0	cache->stats.commit_count.counter	0
PARAM_VALUE	0	cache->stats.copies_avoided.counter	0
PARAM_VALUE	0	cache->stats.demotion.counter	0
PARAM_VALUE	0	cache->stats.discard_count.counter	0
PARAM_VALUE	0	cache->stats.promotion.counter	0
PARAM_VALUE	0	cache->ti	4096-ptr_max
PARAM_VALUE	0	cache->ti->error	6178336389065121792
PARAM_VALUE	0	cache->ti->len	1-u64max
PARAM_VALUE	0	cache->ti->table	4096-ptr_max
PARAM_VALUE	0	cache->ti->table->event_context->event_nr.counter	s32min-s32max
PARAM_VALUE	0	cache->ti->table->event_context->uevent_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	cache->ti->type	4096-ptr_max
PARAM_VALUE	0	cache->tracker.idle_time	0
PARAM_VALUE	0	cache->tracker.in_flight	0
PARAM_VALUE	0	cache->wq	4096-ptr_max
BUF_SIZE	0	cache	2416
BUF_SIZE	0	cache->cmd	(-1),1920
BUF_SIZE	0	cache->copier	560
BUF_SIZE	0	cache->dirty_bitset	s32min-s32max
BUF_SIZE	0	cache->discard_bitset	s32min-s32max
BUF_SIZE	0	cache->invalid_bitset	s32min-s32max
BUF_SIZE	0	cache->prison	288
BUF_SIZE	0	cache->wq	(-1),512,528-8720
CAPPED_DATA	0	cache->cache_size	1
CAPPED_DATA	0	cache->copier->sub_job_size	1
CAPPED_DATA	0	cache->sectors_per_block	1
CAPPED_DATA	0	cache->ti->begin	1
DATA_SOURCE	0	cache	r _kzalloc_noprof
STR_LEN	0	cache->ti->error	13
TERMINATED	0	cache->ti->error	1
MEM_ZERO	0	cache->dirty_bitset
MEM_ZERO	0	cache->discard_bitset
MEM_ZERO	0	cache->invalid_bitset
NOCHECK_CALL
USER_DATA	0	cache->migration_threshold	0-u64max
NO_OVERFLOW_SIMPLE	0	cache->copier->io_client->bios.bio_pool.min_nr
NO_OVERFLOW_SIMPLE	0	cache->copier->io_client->bios.bvec_pool.min_nr
NO_OVERFLOW_SIMPLE	0	cache->origin_sectors
NO_OVERFLOW_SIMPLE	0	cache->ti->begin
NO_OVERFLOW_SIMPLE	0	cache->ti->len
HALF_LOCKED2		&md->type_lock

drivers/md/dm-cache-target.c cache_postsuspend() -> prevent_background_work()

Type	Parameter	Key	Value
BUF_SIZE	0	cache	16,40-s32max
BUF_SIZE	0	cache	16,40-s32max
NOCHECK_CALL
HALF_LOCKED2		&md->io_barrier
HALF_LOCKED2		&md->suspend_lock
TYPE_LOCK		(struct mapped_device)->suspend_lock