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authorWill Deacon <will.deacon@arm.com>2015-08-06 16:54:40 (GMT)
committerIngo Molnar <mingo@kernel.org>2015-08-12 09:59:04 (GMT)
commitf5468ffde13fc991bd4d6bdec507ffd5777865bd (patch)
tree44e9d385894eec04675320450bc3f77be6a6c2e9 /lib
parent6d79ef2d30ee5af7315535d1e7bf6fce0008f815 (diff)
locking/lockref: Remove homebrew cmpxchg64_relaxed() macro definition
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> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Waiman.Long@hp.com Cc: paulmck@linux.vnet.ibm.com Link: http://lkml.kernel.org/r/1438880084-18856-5-git-send-email-will.deacon@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/lockref.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/lib/lockref.c b/lib/lockref.c
index 494994b..5a92189 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.
*/

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