From: Will Deacon <will.deacon@arm.com>
To: linux-arch@vger.kernel.org
Cc: Waiman.Long@hp.com, peterz@infradead.org,
linux-kernel@vger.kernel.org, paulmck@linux.vnet.ibm.com,
mingo@kernel.org, Will Deacon <will.deacon@arm.com>
Subject: [PATCH v5 4/8] lockref: remove homebrew cmpxchg64_relaxed macro definition
Date: Thu, 6 Aug 2015 17:54:40 +0100 [thread overview]
Message-ID: <1438880084-18856-5-git-send-email-will.deacon@arm.com> (raw)
In-Reply-To: <1438880084-18856-1-git-send-email-will.deacon@arm.com>
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
next prev parent reply other threads:[~2015-08-06 16:55 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-06 16:54 [PATCH v5 0/8] Add generic support for relaxed atomics Will Deacon
2015-08-06 16:54 ` [PATCH v5 1/8] atomics: add acquire/release/relaxed variants of some atomic operations Will Deacon
2015-08-12 12:34 ` [tip:locking/core] locking/atomics: Add _{acquire|release|relaxed}() " tip-bot for Will Deacon
2015-08-06 16:54 ` [PATCH v5 2/8] asm-generic: rework atomic-long.h to avoid bulk code duplication Will Deacon
2015-08-12 12:34 ` [tip:locking/core] locking, asm-generic: Rework " tip-bot for Will Deacon
2015-08-06 16:54 ` [PATCH v5 3/8] asm-generic: add relaxed/acquire/release variants for atomic_long_t Will Deacon
2015-08-12 12:35 ` [tip:locking/core] locking, asm-generic: Add _{relaxed|acquire|release}() variants for 'atomic_long_t' tip-bot for Will Deacon
2015-08-06 16:54 ` Will Deacon [this message]
2015-08-12 12:35 ` [tip:locking/core] locking/lockref: Remove homebrew cmpxchg64_relaxed() macro definition tip-bot for Will Deacon
2015-08-06 16:54 ` [PATCH v5 5/8] locking/qrwlock: implement queue_write_unlock using smp_store_release Will Deacon
2015-08-12 12:35 ` [tip:locking/core] locking/qrwlock: Implement queue_write_unlock( ) using smp_store_release() tip-bot for Will Deacon
2015-08-06 16:54 ` [PATCH v5 6/8] locking/qrwlock: make use of acquire/release/relaxed atomics Will Deacon
2015-08-12 12:36 ` [tip:locking/core] locking/qrwlock: Make use of _{acquire|release|relaxed}() atomics tip-bot for Will Deacon
2015-08-06 16:54 ` [PATCH v5 7/8] include/llist: use linux/atomic.h instead of asm/cmpxchg.h Will Deacon
2015-08-12 12:36 ` [tip:locking/core] locking, include/llist: Use linux/ atomic.h " tip-bot for Will Deacon
2015-08-06 16:54 ` [PATCH v5 8/8] ARM: atomics: define our SMP atomics in terms of _relaxed operations Will Deacon
2015-08-12 12:36 ` [tip:locking/core] locking, ARM, atomics: Define our SMP atomics in terms of _relaxed() operations tip-bot for Will Deacon
2015-08-07 15:13 ` [PATCH v5 0/8] Add generic support for relaxed atomics Peter Zijlstra
2015-08-07 16:29 ` Will Deacon
2015-08-26 4:28 ` Boqun Feng
2015-08-26 10:41 ` Will Deacon
2015-08-26 11:35 ` Boqun Feng
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