29 lines
868 B
Diff
29 lines
868 B
Diff
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Tue, 9 Feb 2016 18:17:18 +0100
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Subject: kernel: softirq: unlock with irqs on
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.4/patches-4.4.1-rt6.tar.xz
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We unlock the lock while the interrupts are off. This isn't a problem
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now but will get because the migrate_disable() + enable are not
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symmetrical in regard to the status of interrupts.
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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---
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kernel/softirq.c | 4 +++-
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1 file changed, 3 insertions(+), 1 deletion(-)
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--- a/kernel/softirq.c
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+++ b/kernel/softirq.c
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@@ -549,8 +549,10 @@ static void do_current_softirqs(void)
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do_single_softirq(i);
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}
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softirq_clr_runner(i);
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- unlock_softirq(i);
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WARN_ON(current->softirq_nestcnt != 1);
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+ local_irq_enable();
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+ unlock_softirq(i);
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+ local_irq_disable();
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}
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}
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