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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/shmem.c
parente9ba9698187ddbc0c5bfcf41de0349a662d23d02 (diff)
downloadlinux-529ae9aaa08378cfe2a4350bded76f32cc8ff0ce.tar.bz2
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/shmem.c')
-rw-r--r--mm/shmem.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index c1e5a3b4f758..04fb4f1ab88e 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1265,7 +1265,7 @@ repeat:
}
/* We have to do this with page locked to prevent races */
- if (TestSetPageLocked(swappage)) {
+ if (!trylock_page(swappage)) {
shmem_swp_unmap(entry);
spin_unlock(&info->lock);
wait_on_page_locked(swappage);
@@ -1329,7 +1329,7 @@ repeat:
shmem_swp_unmap(entry);
filepage = find_get_page(mapping, idx);
if (filepage &&
- (!PageUptodate(filepage) || TestSetPageLocked(filepage))) {
+ (!PageUptodate(filepage) || !trylock_page(filepage))) {
spin_unlock(&info->lock);
wait_on_page_locked(filepage);
page_cache_release(filepage);