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| author | Tian, Kevin <kevin.tian@intel.com> | 2011-05-06 14:43:36 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-05-19 14:51:08 +0200 |
| commit | b87ba87ca26e226b2277a2d5613ed596f408e96d (patch) | |
| tree | 690e80e3f3f17cec51c0ddbd112fe0ca18a38e39 | |
| parent | 2e9521fd656f05a716b5294a7dbebd37ced05e43 (diff) | |
| download | linux-b87ba87ca26e226b2277a2d5613ed596f408e96d.tar.gz linux-b87ba87ca26e226b2277a2d5613ed596f408e96d.tar.bz2 linux-b87ba87ca26e226b2277a2d5613ed596f408e96d.zip | |
x86: Skip migrating IRQF_PER_CPU irqs in fixup_irqs()
IRQF_PER_CPU means that the irq cannot be moved away from a given
cpu. So it must not be migrated when the cpu goes offline.
[ tglx: massaged changelog ]
Signed-off-by: Fengzhe Zhang <fengzhe.zhang@intel.com>
Signed-off-by: Kevin Tian <kevin.tian@intel.com>
Cc: Ian Campbell <Ian.Campbell@citrix.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Link: http://lkml.kernel.org/r/%3C625BA99ED14B2D499DC4E29D8138F1505C8ED7F7E2%40shsmsx502.ccr.corp.intel.com%3E
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -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 1cb0b9fc78dc..544efe2741be 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -249,7 +249,7 @@ void fixup_irqs(void) data = irq_desc_get_irq_data(desc); affinity = data->affinity; - if (!irq_has_action(irq) || + if (!irq_has_action(irq) || irqd_is_per_cpu(data) || cpumask_subset(affinity, cpu_online_mask)) { raw_spin_unlock(&desc->lock); continue; |