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| author | Zhao Chenhui <chenhui.zhao@freescale.com> | 2012-07-20 20:47:01 +0800 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2012-09-19 08:38:16 -0500 |
| commit | e6651de9cc701ab4829b3a11a7ace85a79405d32 (patch) | |
| tree | af54ca67285b6a13b5ca4405d8372e60b986ccb4 /arch/powerpc/kernel | |
| parent | caa1d631fc99940f866480c2bb88a6f5a235e7a2 (diff) | |
| download | op-kernel-dev-e6651de9cc701ab4829b3a11a7ace85a79405d32.zip op-kernel-dev-e6651de9cc701ab4829b3a11a7ace85a79405d32.tar.gz | |
powerpc/smp: Do not disable IPI interrupts during suspend
During suspend, all interrupts including IPI will be disabled. In this case,
the suspend process will hang in SMP. To prevent this, pass the flag
IRQF_NO_SUSPEND when requesting IPI irq.
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index a51ed20..2b952b5 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -171,7 +171,7 @@ int smp_request_message_ipi(int virq, int msg) } #endif err = request_irq(virq, smp_ipi_action[msg], - IRQF_PERCPU | IRQF_NO_THREAD, + IRQF_PERCPU | IRQF_NO_THREAD | IRQF_NO_SUSPEND, smp_ipi_name[msg], 0); WARN(err < 0, "unable to request_irq %d for %s (rc %d)\n", virq, smp_ipi_name[msg], err); |
