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| author | Liu, Chuansheng <chuansheng.liu@intel.com> | 2012-08-14 06:55:01 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-08-22 10:36:08 +0200 |
| commit | 2530cd4f448935c74eeb49f29559589928e4b2f0 (patch) | |
| tree | 82f044957c8a1fd9c029748ab9f942122465b227 /arch/x86 | |
| parent | 83be4ffa1acbcd529b771f4d2e639b15e2b7957e (diff) | |
| download | linux-3.10-2530cd4f448935c74eeb49f29559589928e4b2f0.tar.gz linux-3.10-2530cd4f448935c74eeb49f29559589928e4b2f0.tar.bz2 linux-3.10-2530cd4f448935c74eeb49f29559589928e4b2f0.zip | |
x86/fixup_irq: Use cpu_online_mask instead of cpu_all_mask
When one CPU is going down and this CPU is the last one in irq
affinity, current code is setting cpu_all_mask as the new
affinity for that irq.
But for some systems (such as in Medfield Android mobile) the
firmware sends the interrupt to each CPU in the irq affinity
mask, averaged, and cpu_all_mask includes all potential CPUs,
i.e. offline ones as well.
So replace cpu_all_mask with cpu_online_mask.
Signed-off-by: liu chuansheng <chuansheng.liu@intel.com>
Acked-by: Yanmin Zhang <yanmin_zhang@linux.intel.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/27240C0AC20F114CBF8149A2696CBE4A137286@SHSMSX101.ccr.corp.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/irq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 7ad683d7864..d44f7829968 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -270,7 +270,7 @@ void fixup_irqs(void) if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) { break_affinity = 1; - affinity = cpu_all_mask; + affinity = cpu_online_mask; } chip = irq_data_get_irq_chip(data); |