percpu_ref_tryget_live identifier - Linux source code next-20260811

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linux

Versions

FIXME
- FIXME
  - next-20260811

Documented in 1 files:

include/linux/percpu-refcount.h, line 292

Defined in 1 files as a function:

include/linux/percpu-refcount.h, line 307 (as a function)

Referenced in 15 files:

Smatch caller information:

drivers/md/md-llbitmap.c llbitmap_raise_barrier() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

drivers/md/md.c md_handle_request() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&md->io_barrier

mm/swapfile.c get_swap_device_info() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	1-u64max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING

fs/aio.c lookup_ioctx() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
LOCK2		rcu_read

fs/nfsd/nfssvc.c nfsd_net_try_get() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		rcu_read

drivers/nvme/target/core.c nvmet_req_init() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&pool->lock

drivers/dma/idxd/submit.c idxd_submit_desc() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING

drivers/dma/idxd/submit.c idxd_submit_desc() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	0	ref->percpu_count_ptr	1-u64max
RX_PATH
TASK_NOT_RUNNING

drivers/target/target_core_alua.c core_alua_queue_state_change_ua() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PREEMPT_ADD			<- disables preempt
RX_PATH
TASK_NOT_RUNNING
LOCK2		&tg_pt_gp->tg_pt_gp_lock
LOCK2		&tg_pt_gp->tg_pt_gp_transition_mutex
HALF_LOCKED2		&buffer->mutex
HALF_LOCKED2		&frag->frag_sem
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct t10_alua_tg_pt_gp)->tg_pt_gp_lock
TYPE_LOCK		(struct t10_alua_tg_pt_gp)->tg_pt_gp_transition_mutex

drivers/nvme/target/pr.c nvmet_pr_get_ns_pc_ref() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	0-1025,1027-1029,1031-u64max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&pool->lock

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

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&m->lock
HALF_LOCKED2		&of->mutex
HALF_LOCKED2		&seq->lock
HALF_LOCKED2		global &cpuset_mutex
HALF_LOCKED2		global &cpuset_top_mutex
HALF_LOCKED2		global &freezer_mutex
HALF_LOCKED2		global &zswap_shrink_lock
HALF_LOCKED2		rcu_read

kernel/cgroup/cgroup-v1.c cgroup1_get_tree() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
NS_CAPABLE	0	21
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&fc->uapi_mutex

kernel/cgroup/cgroup-v1.c cgroup1_root_to_use() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
NS_CAPABLE	0	21
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&fc->uapi_mutex

drivers/target/target_core_xcopy.c target_xcopy_locate_se_dev_e4() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
LOCK2		rcu_read
HALF_LOCKED2		&pool->lock

drivers/target/target_core_transport.c target_get_sess_cmd() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	1-u64max
RX_PATH
TASK_NOT_RUNNING

drivers/target/target_core_transport.c target_handle_task_attr() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&pool->lock
HALF_LOCKED2		&sess->cmdsn_mutex

drivers/target/target_core_device.c transport_lookup_cmd_lun() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read

drivers/target/target_core_device.c transport_lookup_cmd_lun() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING

drivers/target/target_core_device.c transport_lookup_tmr_lun() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read

drivers/target/target_core_pr.c __core_scsi3_alloc_registration() -> percpu_ref_tryget_live()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PREEMPT_ADD			<- disables preempt
RX_PATH
TASK_NOT_RUNNING
LOCK2		&dev->se_port_lock
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct se_device)->se_port_lock