percpu_ref_get_many identifier - Linux source code next-20260811

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linux

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FIXME
- FIXME
  - next-20260811

Documented in 1 files:

include/linux/percpu-refcount.h, line 189

Defined in 1 files as a function:

include/linux/percpu-refcount.h, line 198 (as a function)

Referenced in 6 files:

Smatch caller information:

mm/memcontrol.c obj_cgroup_get_many() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
DATA_SOURCE	1	nr	$1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		irq

block/blk-throttle.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2		&q->queue_lock
LOCK2		irq
TYPE_LOCK		(struct request_queue)->queue_lock

drivers/md/md.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&sh->stripe_lock
HALF_LOCKED2		irq
HALF_LOCKED2		rcu_read

mm/percpu.c obj_cgroup_get_many() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	1	nr	$1
NOCHECK_CALL

io_uring/msg_ring.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL

lib/percpu-refcount.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
NO_OVERFLOW_SIMPLE	0	ref->percpu_count_ptr
LOCK2		global &percpu_ref_switch_lock
HALF_LOCKED2		flags

block/blk-mq.c __blk_mq_alloc_requests_batch() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	0-s32max,18446744071562067968-u64max
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&pool->lock

block/blk-mq.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL

fs/aio.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
NOCHECK_CALL
HALF_LOCKED2		&ctx->ring_lock

drivers/scsi/scsi_lib.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&pool->lock

kernel/bpf/syscall.c obj_cgroup_get_many() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	1	nr	$1
NOCHECK_CALL

mm/zswap.c obj_cgroup_get_many() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	1	nr	$1
NOCHECK_CALL

mm/zswap.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	0	ref->percpu_count_ptr	1-u64max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
NOCHECK_CALL

net/smc/smc_tx.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		sk

drivers/pci/p2pdma.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	0	ref->percpu_count_ptr	1-u64max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2		&of->mutex
HALF_LOCKED2		&ipcp->lock
TYPE_LOCK		(struct kernfs_open_file)->mutex

drivers/infiniband/sw/rdmavt/mr.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&rkt->lock
HALF_LOCKED2		flags
HALF_LOCKED2		rcu_read

io_uring/zcrx.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2		_T->lock
LOCK2		bh
HALF_LOCKED2		&ctx->uring_lock

drivers/nvme/target/core.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&pool->lock

fs/fs-writeback.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&(&mapping->i_pages)->xa_lock
HALF_LOCKED2		&bdi->wb_switch_rwsem
HALF_LOCKED2		&inode->i_lock
HALF_LOCKED2		&old_wb->list_lock
HALF_LOCKED2		&pool->lock
HALF_LOCKED2		&wb->list_lock
HALF_LOCKED2		irq
HALF_LOCKED2		rcu_read

io_uring/io_uring.c __io_alloc_req_refill() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	1	nr	1,8
CAPPED_DATA	1	nr	1
BIT_INFO	1	nr	0x0,0x9
NOCHECK_CALL
UNITS	1	nr	unit_array_size
HALF_LOCKED2		&ctx->uring_lock
HALF_LOCKED2		&ctx->uring_lock
HALF_LOCKED2		&sqd->lock
TYPE_LOCK		(struct io_ring_ctx)->uring_lock

io_uring/io_uring.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2		&ctx->completion_lock
HALF_LOCKED2		&ctx->uring_lock
TYPE_LOCK		(struct io_ring_ctx)->completion_lock

kernel/bpf/memalloc.c obj_cgroup_get_many() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	1	nr	$1
NOCHECK_CALL

net/smc/smc_cdc.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		sk

drivers/infiniband/hw/hfi1/rc.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2		&qp->s_lock
LOCK2		ps.flags
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct rvt_qp)->s_lock

kernel/bpf/cgroup.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
NOCHECK_CALL

block/blk-zoned.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2		&zwplug->lock
LOCK2		flags
HALF_LOCKED2		&bio->bi_bdev->bd_queue->queue_lock
HALF_LOCKED2		&md->io_barrier
TYPE_LOCK		(struct blk_zone_wplug)->lock

kernel/cgroup/cgroup.c css_get_many() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
DATA_SOURCE	1	nr	$1
NOCHECK_CALL

kernel/cgroup/cgroup.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		rcu_read

drivers/infiniband/ulp/rtrs/rtrs-srv.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&pool->lock

block/blk-cgroup.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&blkcg->lock
HALF_LOCKED2		&pool->lock
HALF_LOCKED2		&q->blkcg_mutex
HALF_LOCKED2		&q->queue_lock
HALF_LOCKED2		irq

net/smc/smc_wr.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&lgr->llc_conf_mutex
HALF_LOCKED2		&lgr->rmbs_lock
HALF_LOCKED2		&lgr->sndbufs_lock
HALF_LOCKED2		&pool->lock
HALF_LOCKED2		&smc->sk
HALF_LOCKED2		global &smc_client_lgr_pending
HALF_LOCKED2		global &smc_server_lgr_pending

mm/memremap.c pagemap_range() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	0	ref->data	4096-ptr_max
PARAM_VALUE	0	ref->percpu_count_ptr	4096-18446744073709547523
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&mdevice->devmem_lock
HALF_LOCKED2		&mm->mmap_lock
HALF_LOCKED2		global &list_lock

net/smc/smc_llc.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&lgr->llc_conf_mutex
HALF_LOCKED2		&lgr->rmbs_lock
HALF_LOCKED2		&pool->lock

net/smc/smc_core.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
NOCHECK_CALL
LOCK2		&pool->lock
HALF_LOCKED2		&lgr->llc_conf_mutex
TYPE_LOCK		(struct smc_link_group)->llc_conf_mutex

kernel/bpf/trampoline.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
NOCHECK_CALL

io_uring/tw.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2		&ctx->uring_lock
HALF_LOCKED2		&sqd->lock
TYPE_LOCK		(struct io_ring_ctx)->uring_lock

block/bfq-cgroup.c percpu_ref_get() -> percpu_ref_get_many()

Type	Parameter	Key	Value
PARAM_VALUE	0	ref	4096-ptr_max
PARAM_VALUE	1	nr	1
DATA_SOURCE	0	ref	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&bfqd->lock
HALF_LOCKED2		irq