blkg_alloc identifier - Linux source code next-20260811

Projects

linux

Versions

FIXME
- FIXME
  - next-20260811

Documented in 1 files:

block/blk-cgroup.c, line 295

Defined in 1 files as a function:

block/blk-cgroup.c, line 303 (as a function)

Referenced in 1 files:

block/blk-cgroup.c

Smatch caller information:

block/blk-cgroup.c blkcg_init_disk() -> blkg_alloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	blkcg	370693308108595200
PARAM_VALUE	1	disk	4096-ptr_max
PARAM_VALUE	1	disk->bdi	4096-ptr_max
PARAM_VALUE	1	disk->bdi->bdi_list.next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->bdi_list.next->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->bdi_list.prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->bdi_list.prev->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->bdi_list.prev->prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->capabilities	1
PARAM_VALUE	1	disk->bdi->cgwb_release_mutex.dep_map->name	0-255
PARAM_VALUE	1	disk->bdi->cgwb_release_mutex.magic	4096-ptr_max
PARAM_VALUE	1	disk->bdi->cgwb_tree.xa_flags	2080
PARAM_VALUE	1	disk->bdi->cgwb_tree.xa_head	0
PARAM_VALUE	1	disk->bdi->dev	0
PARAM_VALUE	1	disk->bdi->io_pages	32
PARAM_VALUE	1	disk->bdi->max_prop_frac	1024
PARAM_VALUE	1	disk->bdi->max_ratio	1000000
PARAM_VALUE	1	disk->bdi->min_ratio	0
PARAM_VALUE	1	disk->bdi->ra_pages	32
PARAM_VALUE	1	disk->bdi->refcnt.refcount.refs.counter	1
PARAM_VALUE	1	disk->bdi->wb.avg_write_bandwidth	25600
PARAM_VALUE	1	disk->bdi->wb.b_attached.next	0
PARAM_VALUE	1	disk->bdi->wb.b_attached.prev	0
PARAM_VALUE	1	disk->bdi->wb.b_dirty.next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_dirty.next->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_dirty.prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_dirty.prev->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_dirty.prev->prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_dirty_time.next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_dirty_time.next->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_dirty_time.prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_dirty_time.prev->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_dirty_time.prev->prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_io.next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_io.next->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_io.prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_io.prev->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_io.prev->prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_more_io.next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_more_io.next->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_more_io.prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_more_io.prev->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.b_more_io.prev->prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.balanced_dirty_ratelimit	25600
PARAM_VALUE	1	disk->bdi->wb.bdi	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.bdi_node.next	0
PARAM_VALUE	1	disk->bdi->wb.bdi_node.prev	0
PARAM_VALUE	1	disk->bdi->wb.blkcg_node.next	0
PARAM_VALUE	1	disk->bdi->wb.blkcg_node.prev	0
PARAM_VALUE	1	disk->bdi->wb.bw_dwork.cpu	0
PARAM_VALUE	1	disk->bdi->wb.bw_dwork.timer.entry.next	0
PARAM_VALUE	1	disk->bdi->wb.bw_dwork.timer.expires	0
PARAM_VALUE	1	disk->bdi->wb.bw_dwork.timer.flags	0
PARAM_VALUE	1	disk->bdi->wb.bw_dwork.timer.function	0
PARAM_VALUE	1	disk->bdi->wb.bw_dwork.work.entry.next	0
PARAM_VALUE	1	disk->bdi->wb.bw_dwork.work.entry.prev	0
PARAM_VALUE	1	disk->bdi->wb.bw_dwork.work.func	0
PARAM_VALUE	1	disk->bdi->wb.bw_dwork.wq	0
PARAM_VALUE	1	disk->bdi->wb.completions.events.count	0
PARAM_VALUE	1	disk->bdi->wb.completions.lock.magic	3735899821
PARAM_VALUE	1	disk->bdi->wb.completions.lock.owner	(-1)
PARAM_VALUE	1	disk->bdi->wb.completions.lock.owner_cpu	u32max
PARAM_VALUE	1	disk->bdi->wb.completions.period	0
PARAM_VALUE	1	disk->bdi->wb.dirtied_stamp	0
PARAM_VALUE	1	disk->bdi->wb.dirty_exceeded	0
PARAM_VALUE	1	disk->bdi->wb.dirty_ratelimit	25600
PARAM_VALUE	1	disk->bdi->wb.dwork.cpu	0
PARAM_VALUE	1	disk->bdi->wb.dwork.timer.entry.next	0
PARAM_VALUE	1	disk->bdi->wb.dwork.timer.entry.pprev	0
PARAM_VALUE	1	disk->bdi->wb.dwork.timer.expires	0
PARAM_VALUE	1	disk->bdi->wb.dwork.timer.flags	0
PARAM_VALUE	1	disk->bdi->wb.dwork.timer.function	0
PARAM_VALUE	1	disk->bdi->wb.dwork.work.data.counter	0
PARAM_VALUE	1	disk->bdi->wb.dwork.work.entry.next	0
PARAM_VALUE	1	disk->bdi->wb.dwork.work.entry.prev	0
PARAM_VALUE	1	disk->bdi->wb.dwork.work.func	0
PARAM_VALUE	1	disk->bdi->wb.dwork.wq	0
PARAM_VALUE	1	disk->bdi->wb.memcg_completions.period	0
PARAM_VALUE	1	disk->bdi->wb.memcg_css	0,4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.memcg_node.next	0
PARAM_VALUE	1	disk->bdi->wb.memcg_node.prev	0
PARAM_VALUE	1	disk->bdi->wb.offline_node.next	0
PARAM_VALUE	1	disk->bdi->wb.offline_node.prev	0
PARAM_VALUE	1	disk->bdi->wb.rcu.func	0
PARAM_VALUE	1	disk->bdi->wb.rcu.next	0
PARAM_VALUE	1	disk->bdi->wb.refcnt.data	0
PARAM_VALUE	1	disk->bdi->wb.refcnt.percpu_count_ptr	0
PARAM_VALUE	1	disk->bdi->wb.release_work.data.counter	0
PARAM_VALUE	1	disk->bdi->wb.release_work.entry.next	0
PARAM_VALUE	1	disk->bdi->wb.release_work.entry.prev	0
PARAM_VALUE	1	disk->bdi->wb.release_work.func	0
PARAM_VALUE	1	disk->bdi->wb.start_all_reason	0
PARAM_VALUE	1	disk->bdi->wb.state	0
PARAM_VALUE	1	disk->bdi->wb.switch_wbs_ctxs.first	0
PARAM_VALUE	1	disk->bdi->wb.switch_work.func	0
PARAM_VALUE	1	disk->bdi->wb.work_list.next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.work_list.next->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.work_list.prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.work_list.prev->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.work_list.prev->prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb.write_bandwidth	25600
PARAM_VALUE	1	disk->bdi->wb.writeback_inodes.counter	0
PARAM_VALUE	1	disk->bdi->wb.written_stamp	0
PARAM_VALUE	1	disk->bdi->wb_list.next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb_list.next->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb_list.prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb_list.prev->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb_list.prev->prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb_switch_rwsem.dep_map->name	0-255
PARAM_VALUE	1	disk->bdi->wb_switch_rwsem.first_waiter	0
PARAM_VALUE	1	disk->bdi->wb_switch_rwsem.magic	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb_waitq.head.next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb_waitq.head.next->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb_waitq.head.prev	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb_waitq.head.prev->next	4096-ptr_max
PARAM_VALUE	1	disk->bdi->wb_waitq.head.prev->prev	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.back_pad	0,64
PARAM_VALUE	1	disk->bio_split.bio_pool.alloc	7276475779886346240
PARAM_VALUE	1	disk->bio_split.bio_pool.curr_nr	1-s32max
PARAM_VALUE	1	disk->bio_split.bio_pool.elements	1-u64max
PARAM_VALUE	1	disk->bio_split.bio_pool.free	8263660038527102976
PARAM_VALUE	1	disk->bio_split.bio_pool.min_nr	2
PARAM_VALUE	1	disk->bio_split.bio_pool.pool_data	1-u64max
PARAM_VALUE	1	disk->bio_split.bio_pool.wait.head.next	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.bio_pool.wait.head.next->next	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.bio_pool.wait.head.prev	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.bio_pool.wait.head.prev->next	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.bio_pool.wait.head.prev->prev	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.bio_slab	1-u64max
PARAM_VALUE	1	disk->bio_split.bvec_pool.alloc	7276475779886346240
PARAM_VALUE	1	disk->bio_split.bvec_pool.curr_nr	1-s32max
PARAM_VALUE	1	disk->bio_split.bvec_pool.elements	1-u64max
PARAM_VALUE	1	disk->bio_split.bvec_pool.free	8263660038527102976
PARAM_VALUE	1	disk->bio_split.bvec_pool.wait.head.next	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.bvec_pool.wait.head.next->next	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.bvec_pool.wait.head.prev	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.bvec_pool.wait.head.prev->next	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.bvec_pool.wait.head.prev->prev	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.cache	0,4096-ptr_max
PARAM_VALUE	1	disk->bio_split.cpuhp_dead->pprev	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.cpuhp_dead.pprev	4096-ptr_max
PARAM_VALUE	1	disk->bio_split.front_pad	0
PARAM_VALUE	1	disk->bio_split.rescue_list.head	0
PARAM_VALUE	1	disk->bio_split.rescue_list.tail	0
PARAM_VALUE	1	disk->bio_split.rescue_workqueue	0,4096-ptr_max
PARAM_VALUE	1	disk->open_mutex.dep_map->name	0-255
PARAM_VALUE	1	disk->open_mutex.first_waiter	0
PARAM_VALUE	1	disk->open_mutex.magic	4096-ptr_max
PARAM_VALUE	1	disk->open_mutex.osq.tail.counter	0
PARAM_VALUE	1	disk->open_mutex.owner.counter	0
PARAM_VALUE	1	disk->part0	4096-ptr_max
PARAM_VALUE	1	disk->part0->bd_disk	4096-ptr_max
PARAM_VALUE	1	disk->part0->bd_fsfreeze_mutex.dep_map->name	0-255
PARAM_VALUE	1	disk->part0->bd_fsfreeze_mutex.magic	4096-ptr_max
PARAM_VALUE	1	disk->part0->bd_holder_lock.dep_map->name	0-255
PARAM_VALUE	1	disk->part0->bd_holder_lock.magic	4096-ptr_max
PARAM_VALUE	1	disk->part0->bd_mapping	4096-ptr_max
PARAM_VALUE	1	disk->part0->bd_mapping->a_ops	5931361204064923648
PARAM_VALUE	1	disk->part0->bd_mapping->gfp_mask	1051840
PARAM_VALUE	1	disk->part0->bd_mapping->host	4096-ptr_max
PARAM_VALUE	1	disk->part0->bd_mapping->invalidate_lock.magic	4096-ptr_max
PARAM_VALUE	1	disk->part0->bd_queue	4096-ptr_max
PARAM_VALUE	1	disk->part0->bd_stats	4096-ptr_max
PARAM_VALUE	1	disk->part_tbl.xa_flags	0
PARAM_VALUE	1	disk->part_tbl.xa_head	0
PARAM_VALUE	1	disk->part_tbl.xa_lock.rlock.dep_map->name	0-255
PARAM_VALUE	1	disk->queue	4096-ptr_max
PARAM_VALUE	1	disk->queue->root_blkg	0
PARAM_VALUE	2	gfp_mask	3264
BUF_SIZE	1	disk	2000
BUF_SIZE	1	disk->bdi	2552
BUF_SIZE	1	disk->part0	2136
BUF_SIZE	1	disk->part0->bd_disk	2000
CAPPED_DATA	1	disk->part0	1
DATA_SOURCE	1	disk	$0
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	1	disk->part0->bd_queue->async_depth	1-10238[c]
HOST_DATA	1	disk->part0->bd_queue->limits.alignment_offset	0-u16max[c]
HOST_DATA	1	disk->part0->bd_queue->limits.atomic_write_max_sectors	0-8388607[c]
HOST_DATA	1	disk->part0->bd_queue->limits.discard_granularity	512-u32max[c]
HOST_DATA	1	disk->part0->bd_queue->limits.integrity.interval_exp	0-31[c]
HOST_DATA	1	disk->part0->bd_queue->limits.io_min	512-65536[c]
HOST_DATA	1	disk->part0->bd_queue->limits.max_active_zones	0-u32max
HOST_DATA	1	disk->part0->bd_queue->limits.max_open_zones	0-u32max
HOST_DATA	1	disk->part0->bd_queue->limits.max_sectors	0-s32max[c]
HOST_DATA	1	disk->part0->bd_queue->limits.max_zone_append_sectors	0-s32max[c]
HOST_DATA	1	disk->part0->bd_queue->limits.zone_write_granularity	512-65536[c]
HOST_DATA	1	disk->part0->bd_queue->nr_requests	1-10238[c]
HOST_DATA	1	disk->queue->async_depth	0-10238[c]
HOST_DATA	1	disk->queue->limits.alignment_offset	0-u16max[c]
HOST_DATA	1	disk->queue->limits.atomic_write_max_sectors	0-8388607[c]
HOST_DATA	1	disk->queue->limits.discard_granularity	512-u32max[c]
HOST_DATA	1	disk->queue->limits.integrity.interval_exp	0-31[c]
HOST_DATA	1	disk->queue->limits.io_min	512-65536[c]
HOST_DATA	1	disk->queue->limits.max_active_zones	0-u32max
HOST_DATA	1	disk->queue->limits.max_open_zones	0-u32max
HOST_DATA	1	disk->queue->limits.max_sectors	0-s32max[c]
HOST_DATA	1	disk->queue->limits.max_zone_append_sectors	0-s32max[c]
HOST_DATA	1	disk->queue->limits.zone_write_granularity	512-65536[c]
HOST_DATA	1	disk->queue->nr_requests	0-10238[c]
NO_OVERFLOW_SIMPLE	1	disk->part0->bd_disk->bio_split.bio_pool.min_nr
NO_OVERFLOW_SIMPLE	1	disk->part0->bd_disk->bio_split.bvec_pool.min_nr
NO_OVERFLOW_SIMPLE	1	disk->part0->bd_queue->async_depth
NO_OVERFLOW_SIMPLE	1	disk->part0->bd_queue->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	1	disk->part0->bd_queue->limits.max_open_zones
NO_OVERFLOW_SIMPLE	1	disk->part0->bd_queue->nr_requests
NO_OVERFLOW_SIMPLE	1	disk->queue->async_depth
NO_OVERFLOW_SIMPLE	1	disk->queue->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	1	disk->queue->limits.max_open_zones
NO_OVERFLOW_SIMPLE	1	disk->queue->nr_hw_queues
NO_OVERFLOW_SIMPLE	1	disk->queue->nr_requests

block/blk-cgroup.c blkg_conf_prep() -> blkg_alloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	blkcg	4096-ptr_max
PARAM_VALUE	1	disk	4096-ptr_max
PARAM_VALUE	1	disk->queue	4096-ptr_max
PARAM_VALUE	1	disk->queue->blkcg_mutex.dep_map->name	0-255
PARAM_VALUE	1	disk->queue->blkcg_mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	1	disk->queue->blkcg_mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	1	disk->queue->blkcg_mutex.osq.tail.counter	0-s32max
PARAM_VALUE	1	disk->queue->blkcg_mutex.wait_lock.dep_map->name	0-255
PARAM_VALUE	1	disk->queue->blkcg_mutex.wait_lock.owner	(-1)
PARAM_VALUE	1	disk->queue->blkcg_mutex.wait_lock.owner_cpu	u32max
PARAM_VALUE	1	disk->queue->queue_lock.rlock.dep_map->name	0-255
PARAM_VALUE	2	gfp_mask	3072
CAPPED_DATA	1	disk->queue	1
RX_PATH
TASK_NOT_RUNNING
LOCK2		&bdev->bd_queue->rq_qos_mutex
LOCK2		&of->mutex
LOCK2		&q->blkcg_mutex
HALF_LOCKED2		&of->prealloc_mutex
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct kernfs_open_file)->mutex
TYPE_LOCK		(struct request_queue)->blkcg_mutex

block/blk-cgroup.c blkg_create() -> blkg_alloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	blkcg	4096-ptr_max
PARAM_VALUE	1	disk	4096-ptr_max
PARAM_VALUE	1	disk->queue	4096-ptr_max
PARAM_VALUE	1	disk->queue->mq_kobj->release.wq->dfl_pwq	0-s64max
PARAM_VALUE	1	disk->queue->mq_kobj->release.wq->saved_max_active	s32min-s32max
PARAM_VALUE	1	disk->queue->mq_kobj->release.wq->saved_min_active	s32min-s32max
PARAM_VALUE	2	gfp_mask	10240
DATA_SOURCE	0	blkcg	$0
DATA_SOURCE	1	disk	$1
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE	1	disk->bio_split.bio_pool.min_nr
NO_OVERFLOW_SIMPLE	1	disk->bio_split.bvec_pool.min_nr
NO_OVERFLOW_SIMPLE	1	disk->part0->bd_queue->async_depth
NO_OVERFLOW_SIMPLE	1	disk->part0->bd_queue->limits.max_discard_sectors
NO_OVERFLOW_SIMPLE	1	disk->part0->bd_queue->limits.max_open_zones
NO_OVERFLOW_SIMPLE	1	disk->part0->bd_queue->nr_hw_queues
NO_OVERFLOW_SIMPLE	1	disk->part0->bd_queue->nr_requests
NO_OVERFLOW_SIMPLE	1	disk->queue->async_depth
NO_OVERFLOW_SIMPLE	1	disk->queue->nr_requests
NO_OVERFLOW_SIMPLE	1	disk->queue->queue_hw_ctx
NO_OVERFLOW_SIMPLE	1	disk->queue->stats
LOCK2		&q->queue_lock
LOCK2		irq
HALF_LOCKED2		&bfqd->lock
HALF_LOCKED2		&bio->bi_bdev->bd_queue->queue_lock
TYPE_LOCK		(struct request_queue)->queue_lock