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sched/wait: Rename wait_queue_t => wait_queue_entry_t

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Rename:

	wait_queue_t		=>	wait_queue_entry_t

'wait_queue_t' was always a slight misnomer: its name implies that it's a "queue",
but in reality it's a queue *entry*. The 'real' queue is the wait queue head,
which had to carry the name.

Start sorting this out by renaming it to 'wait_queue_entry_t'.

This also allows the real structure name 'struct __wait_queue' to
lose its double underscore and become 'struct wait_queue_entry',
which is the more canonical nomenclature for such data types.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar
2017-06-20 12:06:13 +02:00
parent 9705596d08
commit ac6424b981
94 changed files with 216 additions and 213 deletions
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10
fs/eventpoll.c
View File

@@ -244,7 +244,7 @@ struct eppoll_entry {
* Wait queue item that will be linked to the target file wait
* queue head.
*/
wait_queue_t wait;
wait_queue_entry_t wait;
/* The wait queue head that linked the "wait" wait queue item */
wait_queue_head_t *whead;
@@ -347,13 +347,13 @@ static inline int ep_is_linked(struct list_head *p)
return !list_empty(p);
}
static inline struct eppoll_entry *ep_pwq_from_wait(wait_queue_t *p)
static inline struct eppoll_entry *ep_pwq_from_wait(wait_queue_entry_t *p)
{
return container_of(p, struct eppoll_entry, wait);
}
/* Get the "struct epitem" from a wait queue pointer */
static inline struct epitem *ep_item_from_wait(wait_queue_t *p)
static inline struct epitem *ep_item_from_wait(wait_queue_entry_t *p)
{
return container_of(p, struct eppoll_entry, wait)->base;
}
@@ -1078,7 +1078,7 @@ static struct epitem *ep_find(struct eventpoll *ep, struct file *file, int fd)
* mechanism. It is called by the stored file descriptors when they
* have events to report.
*/
static int ep_poll_callback(wait_queue_t *wait, unsigned mode, int sync, void *key)
static int ep_poll_callback(wait_queue_entry_t *wait, unsigned mode, int sync, void *key)
{
int pwake = 0;
unsigned long flags;
@@ -1699,7 +1699,7 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
int res = 0, eavail, timed_out = 0;
unsigned long flags;
u64 slack = 0;
wait_queue_t wait;
wait_queue_entry_t wait;
ktime_t expires, *to = NULL;
if (timeout > 0) {