diff options
| author | Ingo Molnar <mingo@kernel.org> | 2015-08-25 09:44:49 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-08-25 09:44:49 +0200 |
| commit | f612a7b1a7f1b5139f228724ce340aac24720591 (patch) | |
| tree | d75f83de54578908af0484d25bcfcb8e650e1cf2 /include/linux | |
| parent | 9b9412dc7008f360c8e8ed10a654d3c8719f69d8 (diff) | |
| parent | 12d560f4ea87030667438a169912380be00cea4b (diff) | |
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU cleanup from Paul E. McKenney:
"Privatize smp_mb__after_unlock_lock(). This commit moves the
definition of smp_mb__after_unlock_lock() to kernel/rcu/tree.h,
in recognition of the fact that RCU is the only thing using
this, that nothing else is likely to use it, and that it is
likely to go away completely."
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/spinlock.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index 0063b24b4f36..16c5ed5a627c 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h @@ -130,16 +130,6 @@ do { \ #define smp_mb__before_spinlock() smp_wmb() #endif -/* - * Place this after a lock-acquisition primitive to guarantee that - * an UNLOCK+LOCK pair act as a full barrier. This guarantee applies - * if the UNLOCK and LOCK are executed by the same CPU or if the - * UNLOCK and LOCK operate on the same lock variable. - */ -#ifndef smp_mb__after_unlock_lock -#define smp_mb__after_unlock_lock() do { } while (0) -#endif - /** * raw_spin_unlock_wait - wait until the spinlock gets unlocked * @lock: the spinlock in question. |