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| author | Will Deacon <will.deacon@arm.com> | 2015-08-06 17:54:40 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-08-12 11:59:04 +0200 |
| commit | f5468ffde13fc991bd4d6bdec507ffd5777865bd (patch) | |
| tree | 44e9d385894eec04675320450bc3f77be6a6c2e9 /lib/lockref.c | |
| parent | 6d79ef2d30ee5af7315535d1e7bf6fce0008f815 (diff) | |
| download | lwn-f5468ffde13fc991bd4d6bdec507ffd5777865bd.tar.gz lwn-f5468ffde13fc991bd4d6bdec507ffd5777865bd.zip | |
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/lockref.c')
| -rw-r--r-- | lib/lockref.c | 8 |
1 files changed, 0 insertions, 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. */ |