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| Started by | Will Deacon <will.deacon@arm.com> |
|---|---|
| First post | 2015-08-06 19:00 +0200 |
| Last post | 2015-08-12 14:40 +0200 |
| Articles | 2 — 2 participants |
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[PATCH v5 4/8] lockref: remove homebrew cmpxchg64_relaxed macro definition Will Deacon <will.deacon@arm.com> - 2015-08-06 19:00 +0200
[tip:locking/core] locking/lockref: Remove homebrew cmpxchg64_relaxed() macro definition tip-bot for Will Deacon <tipbot@zytor.com> - 2015-08-12 14:40 +0200
| From | Will Deacon <will.deacon@arm.com> |
|---|---|
| Date | 2015-08-06 19:00 +0200 |
| Subject | [PATCH v5 4/8] lockref: remove homebrew cmpxchg64_relaxed macro definition |
| Message-ID | <pUwGm-6w0-7@gated-at.bofh.it> |
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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | tip-bot for Will Deacon <tipbot@zytor.com> |
|---|---|
| Date | 2015-08-12 14:40 +0200 |
| Subject | [tip:locking/core] locking/lockref: Remove homebrew cmpxchg64_relaxed() macro definition |
| Message-ID | <pWDu5-4ta-83@gated-at.bofh.it> |
| In reply to | #1201905 |
Commit-ID: f5468ffde13fc991bd4d6bdec507ffd5777865bd Gitweb: http://git.kernel.org/tip/f5468ffde13fc991bd4d6bdec507ffd5777865bd Author: Will Deacon <will.deacon@arm.com> AuthorDate: Thu, 6 Aug 2015 17:54:40 +0100 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Wed, 12 Aug 2015 11:59:04 +0200 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> --- lib/lockref.c | 8 -------- 1 file changed, 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. */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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