alpha: lock bitops
alpha: lock bitops

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

[0b86548ef377da0031a3ff3f0c4e06f016e20105@kernel.org: alpha bitops.h must #include <asm/barrier.h>]
Signed-off-by: Nick Piggin <24829078df5003d9dd1dd871ca2aeb0b1cf95ef4@suse.de>
Cc: Richard Henderson <aea4fd857e97ee7d33f60175ba9388a955b9d916@twiddle.net>
Cc: Ivan Kokshaysky <ec437ab60af367f0fec0f6a3cd47f9cbad7b487f@jurassic.park.msu.ru>
Signed-off-by: Adrian Bunk <0b86548ef377da0031a3ff3f0c4e06f016e20105@kernel.org>
Signed-off-by: Andrew Morton <5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org>
Signed-off-by: Linus Torvalds <69652caca27c8b940640ad396ab71f93cacec34f@linux-foundation.org>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas