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Defined in 1 files as a function:

Referenced in 1 files:

Smatch caller information:

kernel/locking/percpu-rwsem.c __percpu_down_read() -> percpu_rwsem_wait()

Type Parameter Key Value
PARAM_VALUE 0 sem 4096-ptr_max
PARAM_VALUE 0 sem->block.counter s32min-(-1),1-s32max
PARAM_VALUE 0 sem->read_count 4096-ptr_max
PARAM_VALUE 0 sem->rss.gp_state s32min-(-1),1-s32max
PARAM_VALUE 0 sem->writer.task 0,4096-ptr_max
PARAM_VALUE 0 sem->writer.task->__state 0,512
PARAM_VALUE 0 sem->writer.task->blocked_on 0
PARAM_VALUE 0 sem->writer.task->core_node.__rb_parent_color 1
PARAM_VALUE 0 sem->writer.task->core_node.rb_left 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->core_node.rb_right 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->cpus_ptr 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->delays->blkio_count 0-4294967295
PARAM_VALUE 0 sem->writer.task->delays->blkio_delay_max 1-s64max
PARAM_VALUE 0 sem->writer.task->delays->blkio_delay_max_ts.tv_nsec 0-999999999
PARAM_VALUE 0 sem->writer.task->delays->blkio_delay_min 1-s64max
PARAM_VALUE 0 sem->writer.task->delays->lock.dep_map->name 0-255
PARAM_VALUE 0 sem->writer.task->delays->lock.owner (-1)
PARAM_VALUE 0 sem->writer.task->delays->lock.owner_cpu 4294967295
PARAM_VALUE 0 sem->writer.task->dl.dl_timer.entry.pprev 0
PARAM_VALUE 0 sem->writer.task->dl.pi_se->pi_se 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->dl.rb_node.__rb_parent_color 1
PARAM_VALUE 0 sem->writer.task->dl.rb_node.rb_left 0,4096-ptr_max
PARAM_VALUE 0 sem->writer.task->dl.rq->active_balance s32min-s32max
PARAM_VALUE 0 sem->writer.task->dl.rq->clock_update_flags 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->core_enabled 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->core_forceidle_count 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->core_forceidle_occupation 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->core_forceidle_seq 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->core_pick_seq 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->core_sched_seq 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->core_task_seq 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->cpu s32min-s32max
PARAM_VALUE 0 sem->writer.task->dl.rq->has_blocked_load 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->hrtick_sched 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->idle_balance 0-255
PARAM_VALUE 0 sem->writer.task->dl.rq->membarrier_state s32min-s32max
PARAM_VALUE 0 sem->writer.task->dl.rq->nohz_idle_balance 0-255
PARAM_VALUE 0 sem->writer.task->dl.rq->nohz_tick_stopped 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->nr_llc_running 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->nr_numa_running 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->nr_pinned 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->nr_pref_llc_running 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->nr_preferred_running 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->nr_running 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->numa_migrate_on 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->online s32min-s32max
PARAM_VALUE 0 sem->writer.task->dl.rq->push_busy 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->push_cpu s32min-s32max
PARAM_VALUE 0 sem->writer.task->dl.rq->sched_count 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->sched_goidle 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->ticks_without_resched s32min-s32max
PARAM_VALUE 0 sem->writer.task->dl.rq->ttwu_count 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->ttwu_local 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->ttwu_pending 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->uclamp_flags 0-4294967295
PARAM_VALUE 0 sem->writer.task->dl.rq->yld_count 0-4294967295
PARAM_VALUE 0 sem->writer.task->is_blocked 0
PARAM_VALUE 0 sem->writer.task->migration_disabled 0-1
PARAM_VALUE 0 sem->writer.task->mm->mm_cid.irq_work.node.a_flags.counter 0-s32max
PARAM_VALUE 0 sem->writer.task->mm->mm_cid.max_cids 0-s32max
PARAM_VALUE 0 sem->writer.task->mm->mm_cid.pcpu_thrs 1-1073741823
PARAM_VALUE 0 sem->writer.task->mm->mm_cid.update_deferred 1
PARAM_VALUE 0 sem->writer.task->on_rq 0-1,3-255
PARAM_VALUE 0 sem->writer.task->pushable_dl_tasks.__rb_parent_color 1
PARAM_VALUE 0 sem->writer.task->pushable_tasks.node_list.next->next 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->pushable_tasks.node_list.next->prev 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->pushable_tasks.node_list.prev->next 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->pushable_tasks.node_list.prev->prev 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->pushable_tasks.prio_list.next->next 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->pushable_tasks.prio_list.next->prev 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->pushable_tasks.prio_list.prev->next 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->pushable_tasks.prio_list.prev->prev 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->rseq.event.ids_changed 1
PARAM_VALUE 0 sem->writer.task->saved_state 0
PARAM_VALUE 0 sem->writer.task->sched_migrated 1
PARAM_VALUE 0 sem->writer.task->sched_task_group->autogroup 0
PARAM_VALUE 0 sem->writer.task->sched_task_group->cfs_rq 0
PARAM_VALUE 0 sem->writer.task->sched_task_group->idle s32min-s32max
PARAM_VALUE 0 sem->writer.task->sched_task_group->parent 0-s64max
PARAM_VALUE 0 sem->writer.task->sched_task_group->rt_rq 0
PARAM_VALUE 0 sem->writer.task->sched_task_group->rt_se 0
PARAM_VALUE 0 sem->writer.task->sched_task_group->shares 0-s64max
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->curr 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->propagate 1
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->removed.lock.owner (-1)
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->removed.lock.owner_cpu 4294967295
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->curr->mm->sc_stat.cpu (-1)
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->curr->pref_llc_queued 0-1
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->__state 0,512
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->core_node.__rb_parent_color 1
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->dl.dl_timer.base->cpu_base->expires_next 0-s64max
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->is_blocked 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->mm->mm_cid.irq_work.node.a_flags.counter 0-s32max
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->on_rq 0-1,3-255
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->pushable_dl_tasks.__rb_parent_color 1
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->rseq.event.ids_changed 1
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->saved_state 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->sched_migrated 1
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->se.my_q->prop_runnable_sum 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->se.my_q->propagate 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->se.parent->my_q->prop_runnable_sum 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->se.parent->my_q->propagate 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->se.run_node.rb_left->rb_right 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->se.run_node.rb_right->rb_left 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->donor->wake_cpu 0-s32max
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.inactive_timer.entry.pprev 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_bw 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_deadline 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_defer 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_defer_armed 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_defer_running 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_density 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_non_contending 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_overrun 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_period 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_runtime 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_server 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_throttled 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->dl_yielded 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.pi_se->flags 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->rq->fair_server.rb_node.__rb_parent_color 1
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->tasks_timeline.rb_leftmost->rb_left 0
PARAM_VALUE 0 sem->writer.task->se.cfs_rq->tasks_timeline.rb_leftmost->rb_right 0
PARAM_VALUE 0 sem->writer.task->se.group_node.next->next 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->se.group_node.next->prev 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->se.group_node.prev->next 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->se.group_node.prev->prev 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->se.my_q->prop_runnable_sum 0
PARAM_VALUE 0 sem->writer.task->se.my_q->propagate 0
PARAM_VALUE 0 sem->writer.task->se.parent 0,4096-ptr_max
PARAM_VALUE 0 sem->writer.task->se.rel_deadline 0
PARAM_VALUE 0 sem->writer.task->se.run_node.rb_left 0,4096-ptr_max
PARAM_VALUE 0 sem->writer.task->se.run_node.rb_right 0,4096-ptr_max
PARAM_VALUE 0 sem->writer.task->throttle_node.next->next 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->throttle_node.next->prev 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->throttle_node.prev->next 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->throttle_node.prev->prev 4096-ptr_max
PARAM_VALUE 0 sem->writer.task->wake_cpu 0-s32max
PARAM_VALUE 1 reader 1
CAPPED_DATA 0 sem->writer.task 1
DATA_SOURCE 0 sem $0
DATA_SOURCE 2 freeze $2
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &inode->i_rwsem
HALF_LOCKED2 &pool->lock
HALF_LOCKED2 tsk_mtx

kernel/locking/percpu-rwsem.c percpu_down_write() -> percpu_rwsem_wait()

Type Parameter Key Value
PARAM_VALUE 0 sem 4096-ptr_max
PARAM_VALUE 0 sem->rss.gp_state s32min-(-1),1-s32max
PARAM_VALUE 1 reader 0
PARAM_VALUE 2 freeze 0
DATA_SOURCE 0 sem $0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2 &f->lock
HALF_LOCKED2 &inode->i_mapping->invalidate_lock
HALF_LOCKED2 &tty->ldisc_sem
HALF_LOCKED2 &uprobe->register_rwsem
HALF_LOCKED2 global &cpu_add_remove_lock