From 2291059c852706c6f5ffb400366042b7625066cd Mon Sep 17 00:00:00 2001 From: Pranith Kumar Date: Tue, 23 Sep 2014 10:29:50 -0400 Subject: locking,arch: Use ACCESS_ONCE() instead of cast to volatile in atomic_read() Use the much more reader friendly ACCESS_ONCE() instead of the cast to volatile. This is purely a stylistic change. Signed-off-by: Pranith Kumar Acked-by: Jesper Nilsson Acked-by: Hans-Christian Egtvedt Acked-by: Max Filippov Signed-off-by: Peter Zijlstra (Intel) Cc: Linus Torvalds Cc: linux-arch@vger.kernel.org Link: http://lkml.kernel.org/r/1411482607-20948-1-git-send-email-bobby.prani@gmail.com Signed-off-by: Ingo Molnar --- arch/parisc/include/asm/atomic.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/parisc') diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h index 219750bb4ae7..226f8ca993f6 100644 --- a/arch/parisc/include/asm/atomic.h +++ b/arch/parisc/include/asm/atomic.h @@ -67,7 +67,7 @@ static __inline__ void atomic_set(atomic_t *v, int i) static __inline__ int atomic_read(const atomic_t *v) { - return (*(volatile int *)&(v)->counter); + return ACCESS_ONCE((v)->counter); } /* exported interface */ @@ -204,7 +204,7 @@ atomic64_set(atomic64_t *v, s64 i) static __inline__ s64 atomic64_read(const atomic64_t *v) { - return (*(volatile long *)&(v)->counter); + return ACCESS_ONCE((v)->counter); } #define atomic64_inc(v) (atomic64_add( 1,(v))) -- cgit v1.2.3