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| author | Peter Zijlstra <peterz@infradead.org> | 2014-03-13 22:00:35 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-04-18 16:20:41 +0400 |
| commit | c645073f7e4f073e1ebcd0f0d91652c4468b8364 (patch) | |
| tree | 4defb973474190bb8364eec5d2bb42ecdd8bb32f /arch/powerpc/include/asm/barrier.h | |
| parent | e4a65e9d395feee195f1219d708e9eb2a2d4b583 (diff) | |
| download | linux-c645073f7e4f073e1ebcd0f0d91652c4468b8364.tar.xz | |
arch,powerpc: Convert smp_mb__*()
Powerpc allows reordering over its ll/sc implementation. Implement the
two new barriers as appropriate.
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-gg2ffgq32sjgy9b8lj6m3hsc@git.kernel.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-kernel@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/powerpc/include/asm/barrier.h')
| -rw-r--r-- | arch/powerpc/include/asm/barrier.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h index f89da808ce31..bab79a110c7b 100644 --- a/arch/powerpc/include/asm/barrier.h +++ b/arch/powerpc/include/asm/barrier.h @@ -84,4 +84,7 @@ do { \ ___p1; \ }) +#define smp_mb__before_atomic() smp_mb() +#define smp_mb__after_atomic() smp_mb() + #endif /* _ASM_POWERPC_BARRIER_H */ |