Commit-ID: 6e490b0106a2118ee4c37c37847454a5c2dc6e32
Gitweb: http://git.kernel.org/tip/6e490b0106a2118ee4c37c37847454a5c2dc6e32
Author: Will Deacon <will.dea...@arm.com>
AuthorDate: Wed, 7 Oct 2015 15:10:38 +0100
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Tue, 20 Oct 2015 10:17:23 +0200
ARM, locking/atomics: Implement _relaxed variants of atomic[64]_{inc,dec}
Now that the core code supports acquire/release/relaxed versions of
the atomic_inc family, implement only the _relaxed flavours in the ARM
backend so that we get all of the others for free.
Signed-off-by: Will Deacon <will.dea...@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Acked-by: Davidlohr Bueso <dbu...@suse.de>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Paul E. McKenney <paul...@linux.vnet.ibm.com>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Thomas Gleixner <t...@linutronix.de>
Link:
http://lkml.kernel.org/r/1444227038-12533-1-git-send-email-will.dea...@arm.com
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
arch/arm/include/asm/atomic.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index 2bf80af..9e10c45 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -210,8 +210,8 @@ ATOMIC_OP(xor, ^=, eor)
#define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0)
#define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0)
-#define atomic_inc_return(v) (atomic_add_return(1, v))
-#define atomic_dec_return(v) (atomic_sub_return(1, v))
+#define atomic_inc_return_relaxed(v) (atomic_add_return_relaxed(1, v))
+#define atomic_dec_return_relaxed(v) (atomic_sub_return_relaxed(1, v))
#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
#define atomic_add_negative(i,v) (atomic_add_return(i, v) < 0)
@@ -442,11 +442,11 @@ static inline int atomic64_add_unless(atomic64_t *v, long
long a, long long u)
#define atomic64_add_negative(a, v) (atomic64_add_return((a), (v)) < 0)
#define atomic64_inc(v) atomic64_add(1LL, (v))
-#define atomic64_inc_return(v) atomic64_add_return(1LL, (v))
+#define atomic64_inc_return_relaxed(v) atomic64_add_return_relaxed(1LL, (v))
#define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0)
#define atomic64_sub_and_test(a, v) (atomic64_sub_return((a), (v)) == 0)
#define atomic64_dec(v) atomic64_sub(1LL, (v))
-#define atomic64_dec_return(v) atomic64_sub_return(1LL, (v))
+#define atomic64_dec_return_relaxed(v) atomic64_sub_return_relaxed(1LL, (v))
#define atomic64_dec_and_test(v) (atomic64_dec_return((v)) == 0)
#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1LL, 0LL)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
