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Diffstat (limited to 'kernel/sched/wait.c')
-rw-r--r--kernel/sched/wait.c98
1 files changed, 49 insertions, 49 deletions
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c
index 301ea02dede0..c37b3140763e 100644
--- a/kernel/sched/wait.c
+++ b/kernel/sched/wait.c
@@ -21,34 +21,34 @@ void __init_waitqueue_head(wait_queue_head_t *q, const char *name, struct lock_c
EXPORT_SYMBOL(__init_waitqueue_head);
-void add_wait_queue(wait_queue_head_t *q, wait_queue_entry_t *wait)
+void add_wait_queue(wait_queue_head_t *q, struct wait_queue_entry *wq_entry)
{
unsigned long flags;
- wait->flags &= ~WQ_FLAG_EXCLUSIVE;
+ wq_entry->flags &= ~WQ_FLAG_EXCLUSIVE;
spin_lock_irqsave(&q->lock, flags);
- __add_wait_queue(q, wait);
+ __add_wait_queue_entry_tail(q, wq_entry);
spin_unlock_irqrestore(&q->lock, flags);
}
EXPORT_SYMBOL(add_wait_queue);
-void add_wait_queue_exclusive(wait_queue_head_t *q, wait_queue_entry_t *wait)
+void add_wait_queue_exclusive(wait_queue_head_t *q, struct wait_queue_entry *wq_entry)
{
unsigned long flags;
- wait->flags |= WQ_FLAG_EXCLUSIVE;
+ wq_entry->flags |= WQ_FLAG_EXCLUSIVE;
spin_lock_irqsave(&q->lock, flags);
- __add_wait_queue_entry_tail(q, wait);
+ __add_wait_queue_entry_tail(q, wq_entry);
spin_unlock_irqrestore(&q->lock, flags);
}
EXPORT_SYMBOL(add_wait_queue_exclusive);
-void remove_wait_queue(wait_queue_head_t *q, wait_queue_entry_t *wait)
+void remove_wait_queue(wait_queue_head_t *q, struct wait_queue_entry *wq_entry)
{
unsigned long flags;
spin_lock_irqsave(&q->lock, flags);
- __remove_wait_queue(q, wait);
+ __remove_wait_queue(q, wq_entry);
spin_unlock_irqrestore(&q->lock, flags);
}
EXPORT_SYMBOL(remove_wait_queue);
@@ -170,43 +170,43 @@ EXPORT_SYMBOL_GPL(__wake_up_sync); /* For internal use only */
* loads to move into the critical region).
*/
void
-prepare_to_wait(wait_queue_head_t *q, wait_queue_entry_t *wait, int state)
+prepare_to_wait(wait_queue_head_t *q, struct wait_queue_entry *wq_entry, int state)
{
unsigned long flags;
- wait->flags &= ~WQ_FLAG_EXCLUSIVE;
+ wq_entry->flags &= ~WQ_FLAG_EXCLUSIVE;
spin_lock_irqsave(&q->lock, flags);
- if (list_empty(&wait->task_list))
- __add_wait_queue(q, wait);
+ if (list_empty(&wq_entry->task_list))
+ __add_wait_queue(q, wq_entry);
set_current_state(state);
spin_unlock_irqrestore(&q->lock, flags);
}
EXPORT_SYMBOL(prepare_to_wait);
void
-prepare_to_wait_exclusive(wait_queue_head_t *q, wait_queue_entry_t *wait, int state)
+prepare_to_wait_exclusive(wait_queue_head_t *q, struct wait_queue_entry *wq_entry, int state)
{
unsigned long flags;
- wait->flags |= WQ_FLAG_EXCLUSIVE;
+ wq_entry->flags |= WQ_FLAG_EXCLUSIVE;
spin_lock_irqsave(&q->lock, flags);
- if (list_empty(&wait->task_list))
- __add_wait_queue_entry_tail(q, wait);
+ if (list_empty(&wq_entry->task_list))
+ __add_wait_queue_entry_tail(q, wq_entry);
set_current_state(state);
spin_unlock_irqrestore(&q->lock, flags);
}
EXPORT_SYMBOL(prepare_to_wait_exclusive);
-void init_wait_entry(wait_queue_entry_t *wait, int flags)
+void init_wait_entry(struct wait_queue_entry *wq_entry, int flags)
{
- wait->flags = flags;
- wait->private = current;
- wait->func = autoremove_wake_function;
- INIT_LIST_HEAD(&wait->task_list);
+ wq_entry->flags = flags;
+ wq_entry->private = current;
+ wq_entry->func = autoremove_wake_function;
+ INIT_LIST_HEAD(&wq_entry->task_list);
}
EXPORT_SYMBOL(init_wait_entry);
-long prepare_to_wait_event(wait_queue_head_t *q, wait_queue_entry_t *wait, int state)
+long prepare_to_wait_event(wait_queue_head_t *q, struct wait_queue_entry *wq_entry, int state)
{
unsigned long flags;
long ret = 0;
@@ -225,14 +225,14 @@ long prepare_to_wait_event(wait_queue_head_t *q, wait_queue_entry_t *wait, int s
* can't see us, it should wake up another exclusive waiter if
* we fail.
*/
- list_del_init(&wait->task_list);
+ list_del_init(&wq_entry->task_list);
ret = -ERESTARTSYS;
} else {
- if (list_empty(&wait->task_list)) {
- if (wait->flags & WQ_FLAG_EXCLUSIVE)
- __add_wait_queue_entry_tail(q, wait);
+ if (list_empty(&wq_entry->task_list)) {
+ if (wq_entry->flags & WQ_FLAG_EXCLUSIVE)
+ __add_wait_queue_entry_tail(q, wq_entry);
else
- __add_wait_queue(q, wait);
+ __add_wait_queue(q, wq_entry);
}
set_current_state(state);
}
@@ -284,13 +284,13 @@ EXPORT_SYMBOL(do_wait_intr_irq);
/**
* finish_wait - clean up after waiting in a queue
* @q: waitqueue waited on
- * @wait: wait descriptor
+ * @wq_entry: wait descriptor
*
* Sets current thread back to running state and removes
* the wait descriptor from the given waitqueue if still
* queued.
*/
-void finish_wait(wait_queue_head_t *q, wait_queue_entry_t *wait)
+void finish_wait(wait_queue_head_t *q, struct wait_queue_entry *wq_entry)
{
unsigned long flags;
@@ -308,20 +308,20 @@ void finish_wait(wait_queue_head_t *q, wait_queue_entry_t *wait)
* have _one_ other CPU that looks at or modifies
* the list).
*/
- if (!list_empty_careful(&wait->task_list)) {
+ if (!list_empty_careful(&wq_entry->task_list)) {
spin_lock_irqsave(&q->lock, flags);
- list_del_init(&wait->task_list);
+ list_del_init(&wq_entry->task_list);
spin_unlock_irqrestore(&q->lock, flags);
}
}
EXPORT_SYMBOL(finish_wait);
-int autoremove_wake_function(wait_queue_entry_t *wait, unsigned mode, int sync, void *key)
+int autoremove_wake_function(struct wait_queue_entry *wq_entry, unsigned mode, int sync, void *key)
{
- int ret = default_wake_function(wait, mode, sync, key);
+ int ret = default_wake_function(wq_entry, mode, sync, key);
if (ret)
- list_del_init(&wait->task_list);
+ list_del_init(&wq_entry->task_list);
return ret;
}
EXPORT_SYMBOL(autoremove_wake_function);
@@ -341,17 +341,17 @@ static inline bool is_kthread_should_stop(void)
*
* p->state = mode; condition = true;
* smp_mb(); // A smp_wmb(); // C
- * if (!wait->flags & WQ_FLAG_WOKEN) wait->flags |= WQ_FLAG_WOKEN;
+ * if (!wq_entry->flags & WQ_FLAG_WOKEN) wq_entry->flags |= WQ_FLAG_WOKEN;
* schedule() try_to_wake_up();
* p->state = TASK_RUNNING; ~~~~~~~~~~~~~~~~~~
- * wait->flags &= ~WQ_FLAG_WOKEN; condition = true;
+ * wq_entry->flags &= ~WQ_FLAG_WOKEN; condition = true;
* smp_mb() // B smp_wmb(); // C
- * wait->flags |= WQ_FLAG_WOKEN;
+ * wq_entry->flags |= WQ_FLAG_WOKEN;
* }
* remove_wait_queue(&wq, &wait);
*
*/
-long wait_woken(wait_queue_entry_t *wait, unsigned mode, long timeout)
+long wait_woken(struct wait_queue_entry *wq_entry, unsigned mode, long timeout)
{
set_current_state(mode); /* A */
/*
@@ -359,7 +359,7 @@ long wait_woken(wait_queue_entry_t *wait, unsigned mode, long timeout)
* woken_wake_function() such that if we observe WQ_FLAG_WOKEN we must
* also observe all state before the wakeup.
*/
- if (!(wait->flags & WQ_FLAG_WOKEN) && !is_kthread_should_stop())
+ if (!(wq_entry->flags & WQ_FLAG_WOKEN) && !is_kthread_should_stop())
timeout = schedule_timeout(timeout);
__set_current_state(TASK_RUNNING);
@@ -369,13 +369,13 @@ long wait_woken(wait_queue_entry_t *wait, unsigned mode, long timeout)
* condition being true _OR_ WQ_FLAG_WOKEN such that we will not miss
* an event.
*/
- smp_store_mb(wait->flags, wait->flags & ~WQ_FLAG_WOKEN); /* B */
+ smp_store_mb(wq_entry->flags, wq_entry->flags & ~WQ_FLAG_WOKEN); /* B */
return timeout;
}
EXPORT_SYMBOL(wait_woken);
-int woken_wake_function(wait_queue_entry_t *wait, unsigned mode, int sync, void *key)
+int woken_wake_function(struct wait_queue_entry *wq_entry, unsigned mode, int sync, void *key)
{
/*
* Although this function is called under waitqueue lock, LOCK
@@ -385,24 +385,24 @@ int woken_wake_function(wait_queue_entry_t *wait, unsigned mode, int sync, void
* and is paired with smp_store_mb() in wait_woken().
*/
smp_wmb(); /* C */
- wait->flags |= WQ_FLAG_WOKEN;
+ wq_entry->flags |= WQ_FLAG_WOKEN;
- return default_wake_function(wait, mode, sync, key);
+ return default_wake_function(wq_entry, mode, sync, key);
}
EXPORT_SYMBOL(woken_wake_function);
-int wake_bit_function(wait_queue_entry_t *wait, unsigned mode, int sync, void *arg)
+int wake_bit_function(struct wait_queue_entry *wq_entry, unsigned mode, int sync, void *arg)
{
struct wait_bit_key *key = arg;
struct wait_bit_queue *wait_bit
- = container_of(wait, struct wait_bit_queue, wait);
+ = container_of(wq_entry, struct wait_bit_queue, wait);
if (wait_bit->key.flags != key->flags ||
wait_bit->key.bit_nr != key->bit_nr ||
test_bit(key->bit_nr, key->flags))
return 0;
else
- return autoremove_wake_function(wait, mode, sync, key);
+ return autoremove_wake_function(wq_entry, mode, sync, key);
}
EXPORT_SYMBOL(wake_bit_function);
@@ -534,19 +534,19 @@ static inline wait_queue_head_t *atomic_t_waitqueue(atomic_t *p)
return bit_waitqueue(p, 0);
}
-static int wake_atomic_t_function(wait_queue_entry_t *wait, unsigned mode, int sync,
+static int wake_atomic_t_function(struct wait_queue_entry *wq_entry, unsigned mode, int sync,
void *arg)
{
struct wait_bit_key *key = arg;
struct wait_bit_queue *wait_bit
- = container_of(wait, struct wait_bit_queue, wait);
+ = container_of(wq_entry, struct wait_bit_queue, wait);
atomic_t *val = key->flags;
if (wait_bit->key.flags != key->flags ||
wait_bit->key.bit_nr != key->bit_nr ||
atomic_read(val) != 0)
return 0;
- return autoremove_wake_function(wait, mode, sync, key);
+ return autoremove_wake_function(wq_entry, mode, sync, key);
}
/*
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-25 21:34:18 +0300