mm: rename page trylock

Converting page lock to new locking bitops requires a change of page flag
operation naming, so we might as well convert it to something nicer
(!TestSetPageLocked_Lock => trylock_page, SetPageLocked => set_page_locked).

This also facilitates lockdeping of page lock.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 0aac824371a5..e692c42f24b5 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1280,7 +1280,7 @@ retry:
 
                         if (first < 0)
                                 lock_page(page);
-                        else if (TestSetPageLocked(page))
+                        else if (!trylock_page(page))
                                 break;
 
                         if (unlikely(page->mapping != mapping)) {