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Searched refs:pi_state (Results 1 – 4 of 4) sorted by relevance

/linux/kernel/futex/
H A Dpi.c15 struct futex_pi_state *pi_state; in refill_pi_state_cache() local
20 pi_state = kzalloc_obj(*pi_state); in refill_pi_state_cache()
22 if (!pi_state) in refill_pi_state_cache()
25 INIT_LIST_HEAD(&pi_state->list); in refill_pi_state_cache()
27 pi_state->owner = NULL; in refill_pi_state_cache()
28 refcount_set(&pi_state->refcount, 1); in refill_pi_state_cache()
29 pi_state->key = FUTEX_KEY_INIT; in refill_pi_state_cache()
31 current->pi_state_cache = pi_state; in refill_pi_state_cache()
38 struct futex_pi_state *pi_state = current->pi_state_cache; in alloc_pi_state() local
40 WARN_ON(!pi_state); in alloc_pi_state()
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H A Drequeue.c100 struct futex_pi_state *pi_state) in futex_requeue_pi_prepare() argument
128 q->pi_state = pi_state; in futex_requeue_pi_prepare()
314 if (!top_waiter->rt_waiter || top_waiter->pi_state) in futex_proxy_trylock_atomic()
388 struct futex_pi_state *pi_state = NULL; in futex_requeue() local
504 &key2, &pi_state, in futex_requeue()
605 this->pi_state) { in futex_requeue()
633 get_pi_state(pi_state); in futex_requeue()
636 if (!futex_requeue_pi_prepare(this, pi_state)) { in futex_requeue()
642 put_pi_state(pi_state); in futex_requeue()
646 ret = rt_mutex_start_proxy_lock(&pi_state->pi_mutex, in futex_requeue()
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H A Dcore.c957 BUG_ON(q->pi_state); in futex_unqueue()
1001 BUG_ON(!q->pi_state); in futex_unqueue_pi()
1002 put_pi_state(q->pi_state); in futex_unqueue_pi()
1003 q->pi_state = NULL; in futex_unqueue_pi()
1326 struct futex_pi_state *pi_state; in exit_pi_state_list() local
1348 pi_state = list_entry(next, struct futex_pi_state, list); in exit_pi_state_list()
1349 key = pi_state->key; in exit_pi_state_list()
1363 if (!refcount_inc_not_zero(&pi_state->refcount)) { in exit_pi_state_list()
1372 raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock); in exit_pi_state_list()
1380 raw_spin_unlock(&pi_state->pi_mutex.wait_lock); in exit_pi_state_list()
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/linux/Documentation/locking/
H A Dpi-futex.rst95 the futex-queue. The pi_state includes an rt-mutex, which is a PI-aware,
111 pi_state->rt_mutex and thus wakes up any potential waiters.