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| author |   Peter Zijlstra <peterz@infradead.org> | 2015-05-12 10:51:55 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2015-05-19 08:32:00 +0200 |
| commit | b92b8b35a2e38bde319fd1d68ec84628c1f1b0fb (patch) | |
| tree | 45aea6d12a580b60848363c10dc355f3307ec1ff /kernel/locking | |
| parent | locking/arch: Add WRITE_ONCE() to set_mb() (diff) | |
| download | linux-dev-b92b8b35a2e38bde319fd1d68ec84628c1f1b0fb.tar.xz linux-dev-b92b8b35a2e38bde319fd1d68ec84628c1f1b0fb.zip | |
locking/arch: Rename set_mb() to smp_store_mb()
Since set_mb() is really about an smp_mb() -- not a IO/DMA barrier
like mb() rename it to match the recent smp_load_acquire() and
smp_store_release().
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/locking')
| -rw-r--r-- | kernel/locking/qspinlock_paravirt.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/locking/qspinlock_paravirt.h b/kernel/locking/qspinlock_paravirt.h index 27ab96dca68c..04ab18151cc8 100644 --- a/kernel/locking/qspinlock_paravirt.h +++ b/kernel/locking/qspinlock_paravirt.h @@ -175,7 +175,7 @@ static void pv_wait_node(struct mcs_spinlock *node) * * Matches the xchg() from pv_kick_node(). */ - set_mb(pn->state, vcpu_halted); + smp_store_mb(pn->state, vcpu_halted); if (!READ_ONCE(node->locked)) pv_wait(&pn->state, vcpu_halted); |