sched/wait: Rename wait_queue_t => wait_queue_entry_t

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>

1 files changed, 5 insertions, 5 deletions

diff --git a/mm/filemap.c b/mm/filemap.c
index 6f1be573a5e6..80c19ee81e95 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -768,10 +768,10 @@ struct wait_page_key {
 struct wait_page_queue {
         struct page *page;
         int bit_nr;
-        wait_queue_t wait;
+        wait_queue_entry_t wait;
 };
 
-static int wake_page_function(wait_queue_t *wait, unsigned mode, int sync, void *arg)
+static int wake_page_function(wait_queue_entry_t *wait, unsigned mode, int sync, void *arg)
 {
         struct wait_page_key *key = arg;
         struct wait_page_queue *wait_page
@@ -834,7 +834,7 @@ static inline int wait_on_page_bit_common(wait_queue_head_t *q,
                 struct page *page, int bit_nr, int state, bool lock)
 {
         struct wait_page_queue wait_page;
-        wait_queue_t *wait = &wait_page.wait;
+        wait_queue_entry_t *wait = &wait_page.wait;
         int ret = 0;
 
         init_wait(wait);
@@ -847,7 +847,7 @@ static inline int wait_on_page_bit_common(wait_queue_head_t *q,
 
                 if (likely(list_empty(&wait->task_list))) {
                         if (lock)
-                                __add_wait_queue_tail_exclusive(q, wait);
+                                __add_wait_queue_entry_tail_exclusive(q, wait);
                         else
                                 __add_wait_queue(q, wait);
                         SetPageWaiters(page);
@@ -907,7 +907,7 @@ int wait_on_page_bit_killable(struct page *page, int bit_nr)
  *
  * Add an arbitrary @waiter to the wait queue for the nominated @page.
  */
-void add_page_wait_queue(struct page *page, wait_queue_t *waiter)
+void add_page_wait_queue(struct page *page, wait_queue_entry_t *waiter)
 {
         wait_queue_head_t *q = page_waitqueue(page);
         unsigned long flags;