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authorNick Piggin <npiggin@suse.de>2008-08-02 12:01:03 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-04 21:31:34 -0700
commit529ae9aaa08378cfe2a4350bded76f32cc8ff0ce (patch)
treed3ae998f9876c72a83a022805103a92111852b21 /mm/migrate.c
parente9ba9698187ddbc0c5bfcf41de0349a662d23d02 (diff)
downloadlwn-529ae9aaa08378cfe2a4350bded76f32cc8ff0ce.tar.gz
lwn-529ae9aaa08378cfe2a4350bded76f32cc8ff0ce.zip
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>
Diffstat (limited to 'mm/migrate.c')
-rw-r--r--mm/migrate.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index 153572fb60b8..2a80136b23bb 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -605,7 +605,7 @@ static int move_to_new_page(struct page *newpage, struct page *page)
* establishing additional references. We are the only one
* holding a reference to the new page at this point.
*/
- if (TestSetPageLocked(newpage))
+ if (!trylock_page(newpage))
BUG();
/* Prepare mapping for the new page.*/
@@ -667,7 +667,7 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private,
BUG_ON(charge);
rc = -EAGAIN;
- if (TestSetPageLocked(page)) {
+ if (!trylock_page(page)) {
if (!force)
goto move_newpage;
lock_page(page);