Defined in 1 files as a prototype:

Referenced in 8 files:

Smatch caller information:

mm/memcontrol.c mem_cgroup_swapin_charge_folio() -> css_tryget_online()

Type Parameter Key Value
PARAM_VALUE 0 css 1-1025,1027-1029,1031-u64max
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read

kernel/cgroup/legacy_freezer.c freezer_change_state() -> css_tryget_online()

Type Parameter Key Value
PARAM_VALUE 0 css 1-u64max
BUF_SIZE 0 css (-1),392
BUF_SIZE 0 css (-1),392
RX_PATH
TASK_NOT_RUNNING
LOCK2 &of->mutex
LOCK2 global &freezer_mutex
LOCK2 rcu_read
HALF_LOCKED2 &of->prealloc_mutex
HALF_LOCKED2 &pool->lock
TYPE_LOCK (struct kernfs_open_file)->mutex

kernel/cgroup/legacy_freezer.c freezer_read() -> css_tryget_online()

Type Parameter Key Value
PARAM_VALUE 0 css 1-u64max
BUF_SIZE 0 css (-1),392
BUF_SIZE 0 css (-1),392
RX_PATH
TASK_NOT_RUNNING
LOCK2 &m->lock
LOCK2 global &freezer_mutex
LOCK2 rcu_read
TYPE_LOCK (struct seq_file)->lock

mm/zswap.c mem_cgroup_tryget_online() -> css_tryget_online()

Type Parameter Key Value
PARAM_VALUE 0 css 1-u64max
PREEMPT_ADD
LOCK2 global &zswap_shrink_lock
HALF_LOCKED2 &pool->lock

kernel/cgroup/cpuset.c cpuset_handle_hotplug() -> css_tryget_online()

Type Parameter Key Value
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read

kernel/cgroup/cpuset.c update_cpumasks_hier() -> css_tryget_online()

Type Parameter Key Value
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
HALF_LOCKED2 &of->mutex
HALF_LOCKED2 global &cpuset_mutex
HALF_LOCKED2 global &cpuset_top_mutex

kernel/cgroup/cpuset.c update_nodemasks_hier() -> css_tryget_online()

Type Parameter Key Value
RX_PATH
TASK_NOT_RUNNING
LOCK2 &of->mutex
LOCK2 global &cpuset_mutex
LOCK2 global &cpuset_top_mutex
LOCK2 rcu_read
HALF_LOCKED2 &of->prealloc_mutex
HALF_LOCKED2 &pool->lock
TYPE_LOCK (struct kernfs_open_file)->mutex

kernel/cgroup/cpuset.c update_sibling_cpumasks() -> css_tryget_online()

Type Parameter Key Value
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
HALF_LOCKED2 &of->mutex
HALF_LOCKED2 global &cpuset_mutex
HALF_LOCKED2 global &cpuset_top_mutex

kernel/cgroup/cgroup.c cgroup_get_e_css() -> css_tryget_online()

Type Parameter Key Value
PARAM_VALUE 0 css 1-u64max
DATA_SOURCE 0 css r cgroup_css
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
HALF_LOCKED2 &of->mutex

kernel/cgroup/cgroup.c cgroup_tryget_css() -> css_tryget_online()

Type Parameter Key Value
PARAM_VALUE 0 css 1-u64max
DATA_SOURCE 0 css r cgroup_css
RX_PATH
TASK_NOT_RUNNING
LOCK2 &seq->lock
LOCK2 rcu_read
TYPE_LOCK (struct seq_file)->lock

kernel/cgroup/cgroup.c css_tryget_online_from_dir() -> css_tryget_online()

Type Parameter Key Value
PARAM_VALUE 0 css 1-u64max
BUF_SIZE 0 css (-1),392
BUF_SIZE 0 css (-1),392
DATA_SOURCE 0 css r cgroup_css
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
HALF_LOCKED2 &of->mutex

block/blk-cgroup.c bio_associate_blkg() -> css_tryget_online()

Type Parameter Key Value
DATA_SOURCE 0 css r blkcg_css
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
LOCK2 rcu_read
HALF_LOCKED2 &b->c->verify_lock
HALF_LOCKED2 &b->io_mutex
HALF_LOCKED2 &md->io_barrier
HALF_LOCKED2 global &bch_register_lock

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

Type Parameter Key Value
PARAM_VALUE 0 css 4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2 &bdev->bd_queue->rq_qos_mutex
HALF_LOCKED2 &of->mutex
HALF_LOCKED2 &q->blkcg_mutex
HALF_LOCKED2 &q->queue_lock
HALF_LOCKED2 irq

kernel/cgroup/cpuset-v1.c cpuset1_hotplug_update_tasks() -> css_tryget_online()

Type Parameter Key Value
PARAM_VALUE 0 css 4096-2371988510885339135,2371988510885339137-ptr_max
PARAM_VALUE 0 css->cgroup 4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
LOCK2 global &cpuset_mutex