34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
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From 31d7440b1833fad597cc874e3d63b2ca5b3a13f5 Mon Sep 17 00:00:00 2001
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Thu, 27 Sep 2012 11:11:46 +0200
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Subject: [PATCH 110/365] mm: page_alloc: Use local_lock_on() instead of plain
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spinlock
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The plain spinlock while sufficient does not update the local_lock
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internals. Use a proper local_lock function instead to ease debugging.
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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mm/page_alloc.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/mm/page_alloc.c b/mm/page_alloc.c
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index 71278318ef1a..274e143ec367 100644
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--- a/mm/page_alloc.c
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+++ b/mm/page_alloc.c
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@@ -299,9 +299,9 @@ static DEFINE_LOCAL_IRQ_LOCK(pa_lock);
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#ifdef CONFIG_PREEMPT_RT_BASE
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# define cpu_lock_irqsave(cpu, flags) \
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- spin_lock_irqsave(&per_cpu(pa_lock, cpu).lock, flags)
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+ local_lock_irqsave_on(pa_lock, flags, cpu)
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# define cpu_unlock_irqrestore(cpu, flags) \
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- spin_unlock_irqrestore(&per_cpu(pa_lock, cpu).lock, flags)
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+ local_unlock_irqrestore_on(pa_lock, flags, cpu)
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#else
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# define cpu_lock_irqsave(cpu, flags) local_irq_save(flags)
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# define cpu_unlock_irqrestore(cpu, flags) local_irq_restore(flags)
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--
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2.28.0
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