diff options
| author | Andrew Morton <akpm@osdl.org> | 2004-11-03 22:25:08 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-11-03 22:25:08 -0800 |
| commit | b60ee714f871e2b4d360027de3a1206eef3d1670 (patch) | |
| tree | 3703d6a4248b898fd3d79e44026da6be2cd8a775 /mm | |
| parent | 59847ec6c0c246d98754762324757a831dfd16d0 (diff) | |
| download | history-b60ee714f871e2b4d360027de3a1206eef3d1670.tar.gz | |
[PATCH] PG_writeback: fix waitqueue_active memory barrier
The spin_unlock() in rotate_reclaimable_page() is not a sufficient memory
barrier.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/filemap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index ef66a725b83128..ab211415faa196 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -420,8 +420,8 @@ void end_page_writeback(struct page *page) if (!TestClearPageReclaim(page) || rotate_reclaimable_page(page)) { if (!test_clear_page_writeback(page)) BUG(); - smp_mb__after_clear_bit(); } + smp_mb__after_clear_bit(); wake_up_page(page, PG_writeback); } |