diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2012-09-27 11:11:46 +0200 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-08-13 16:08:58 -0400 |
| commit | 9a177313e8f81164ded206ec4aefa755e80684fb (patch) | |
| tree | a9d9d8940a28b792ed276d568f6d4be7e4758e31 /mm | |
| parent | e1de9aeb22d904a33230ab00305facca7f4b6d05 (diff) | |
mm: page_alloc: Use local_lock_on() instead of plain spinlock
The plain spinlock while sufficient does not update the local_lock
internals. Use a proper local_lock function instead to ease debugging.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable-rt@vger.kernel.org
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/page_alloc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 364c3c6c0f6e..17349133e13a 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -224,9 +224,9 @@ static DEFINE_LOCAL_IRQ_LOCK(pa_lock); #ifdef CONFIG_PREEMPT_RT_BASE # define cpu_lock_irqsave(cpu, flags) \ - spin_lock_irqsave(&per_cpu(pa_lock, cpu).lock, flags) + local_lock_irqsave_on(pa_lock, flags, cpu) # define cpu_unlock_irqrestore(cpu, flags) \ - spin_unlock_irqrestore(&per_cpu(pa_lock, cpu).lock, flags) + local_unlock_irqrestore_on(pa_lock, flags, cpu) #else # define cpu_lock_irqsave(cpu, flags) local_irq_save(flags) # define cpu_unlock_irqrestore(cpu, flags) local_irq_restore(flags) |