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authorNick Piggin <npiggin@suse.de>2008-10-19 07:26:59 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 19:52:32 +0400
commit8413ac9d8c9a1366a4f57880723126cd24e5a5c3 (patch)
treefcee6ff670dcfccf895a48e92d27f52902d34301 /fs/buffer.c
parenta978d6f521063514812a7094dbe5036e056e4de3 (diff)
downloadlinux-8413ac9d8c9a1366a4f57880723126cd24e5a5c3.tar.xz
mm: page lock use lock bitops
trylock_page, unlock_page open and close a critical section. Hence, we can use the lock bitops to get the desired memory ordering. Also, mark trylock as likely to succeed (and remove the annotation from callers). Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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