diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2012-09-27 11:11:46 +0200 |
|---|---|---|
| committer | Anders Roxell <anders.roxell@linaro.org> | 2015-05-08 22:30:55 +0200 |
| commit | 5eca67f943c3f6b8e920f7e60856cb8c406409ba (patch) | |
| tree | e064c2fdead41b87158e5d47267ff1789ef7b107 /mm | |
| parent | e6e52dd280d935ffd8d5fac58544bc5943079c7b (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
Signed-off-by: Anders Roxell <anders.roxell@linaro.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 db0e478362f3..6c18699a36e0 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -235,9 +235,9 @@ 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) |