diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2014-03-13 19:00:35 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-04-18 14:20:44 +0200 |
| commit | 56d3648948c202e8b89cd786a004c451a3eb264f (patch) | |
| tree | eac45e33ca2a33df0001c5162272ec0265e0daa8 /arch/sparc/include/asm/bitops_64.h | |
| parent | 603228bcb8da90f8f8a5cdd8de74178f6c3e7e13 (diff) | |
arch,sparc: Convert smp_mb__*()
sparc32: fully relies on asm-generic/barrier.h and thus can use its
implementation.
sparc64: is strongly ordered and its atomic ops imply a full barrier,
implement the new primitives using barrier().
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: David S. Miller <davem@davemloft.net>
Link: http://lkml.kernel.org/n/tip-2cla9ubpd8chrntnm7e4zdt4@git.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-kernel@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/sparc/include/asm/bitops_64.h')
| -rw-r--r-- | arch/sparc/include/asm/bitops_64.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/sparc/include/asm/bitops_64.h b/arch/sparc/include/asm/bitops_64.h index 29011cc0e4be..f1a051ca301a 100644 --- a/arch/sparc/include/asm/bitops_64.h +++ b/arch/sparc/include/asm/bitops_64.h @@ -13,6 +13,7 @@ #include <linux/compiler.h> #include <asm/byteorder.h> +#include <asm/barrier.h> extern int test_and_set_bit(unsigned long nr, volatile unsigned long *addr); extern int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr); @@ -23,9 +24,6 @@ extern void change_bit(unsigned long nr, volatile unsigned long *addr); #include <asm-generic/bitops/non-atomic.h> -#define smp_mb__before_clear_bit() barrier() -#define smp_mb__after_clear_bit() barrier() - #include <asm-generic/bitops/fls.h> #include <asm-generic/bitops/__fls.h> #include <asm-generic/bitops/fls64.h> |