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Groups > linux.kernel > #1191864

[PATCH v3 4/8] lockref: remove homebrew cmpxchg64_relaxed macro definition

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cmpxchg64_relaxed is now defined by linux/atomic.h, so we can
remove our local definition from the lockref code.

Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 lib/lockref.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/lib/lockref.c b/lib/lockref.c
index 494994bf17c8..5a92189ad711 100644
--- a/lib/lockref.c
+++ b/lib/lockref.c
@@ -4,14 +4,6 @@
 #if USE_CMPXCHG_LOCKREF
 
 /*
- * Allow weakly-ordered memory architectures to provide barrier-less
- * cmpxchg semantics for lockref updates.
- */
-#ifndef cmpxchg64_relaxed
-# define cmpxchg64_relaxed cmpxchg64
-#endif
-
-/*
  * Note that the "cmpxchg()" reloads the "old" value for the
  * failure case.
  */
-- 
2.1.4

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[PATCH v3 0/8] Add generic support for relaxed atomics Will Deacon <will.deacon@arm.com> - 2015-07-24 16:10 +0200
  [PATCH v3 6/8] locking/qrwlock: make use of acquire/release/relaxed atomics Will Deacon <will.deacon@arm.com> - 2015-07-24 16:10 +0200
  [PATCH v3 4/8] lockref: remove homebrew cmpxchg64_relaxed macro definition Will Deacon <will.deacon@arm.com> - 2015-07-24 16:10 +0200
  [PATCH v3 3/8] asm-generic: add relaxed/acquire/release variants for atomic_long_t Will Deacon <will.deacon@arm.com> - 2015-07-24 16:10 +0200
  [PATCH v3 2/8] asm-generic: rework atomic-long.h to avoid bulk code duplication Will Deacon <will.deacon@arm.com> - 2015-07-24 16:10 +0200

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