arch,arm64: Convert smp_mb__*()
authorPeter Zijlstra <peterz@infradead.org>
Thu, 13 Mar 2014 18:00:37 +0000 (19:00 +0100)
committerIngo Molnar <mingo@kernel.org>
Fri, 18 Apr 2014 09:40:33 +0000 (11:40 +0200)
commit8715466b602729061394df18864ea64b97951589
tree4ff3109c25f89b45b041bd9ef1360644eb2e7f77
parent030d0178bdbd237c1f0577f03bbc1d7140a75044
arch,arm64: Convert smp_mb__*()

AARGH64 uses ll/sc primitives that do not imply any barriers for the
normal atomics, therefore smp_mb__{before,after} should be a full
barrier.

Since AARGH64 doesn't use asm-generic/barrier.h, add the required
definitions to its asm/barrier.h.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-8p5iclqgy78al33kck3ht7nr@git.kernel.org
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chen Gang <gang.chen@asianux.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/arm64/include/asm/atomic.h
arch/arm64/include/asm/barrier.h
arch/arm64/include/asm/bitops.h