tree 7660cc81afd36f3724cab197bc97860e3c20fc80
parent 7c29ca5b8d13287ed67d2863f4c5f7bfc1a15279
author Nick Piggin <npiggin@suse.de> 1192702011 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1192743449 -0700

alpha: lock bitops

Alpha can avoid one mb when acquiring a lock with test_and_set_bit_lock.

[bunk@kernel.org: alpha bitops.h must #include <asm/barrier.h>]
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>