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| author | Suresh Siddha <suresh.b.siddha@intel.com> | 2008-07-10 11:16:45 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-12 08:44:55 +0200 |
| commit | 72b1e22dfcad1daca6906148fd956ffe404bb0bc (patch) | |
| tree | 9ca9c198c7bd592528c322002bada84bc3e9d84d /kernel/irq | |
| parent | b6fcb33ad6c05f152a672f7c96c1fab006527b80 (diff) | |
| download | linux-72b1e22dfcad1daca6906148fd956ffe404bb0bc.tar.gz linux-72b1e22dfcad1daca6906148fd956ffe404bb0bc.tar.bz2 linux-72b1e22dfcad1daca6906148fd956ffe404bb0bc.zip | |
x64, x2apic/intr-remap: generic irq migration support from process context
Generic infrastructure for migrating the irq from the process context in the
presence of CONFIG_GENERIC_PENDING_IRQ.
This will be used later for migrating irq in the presence of
interrupt-remapping.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: akpm@linux-foundation.org
Cc: arjan@linux.intel.com
Cc: andi@firstfloor.org
Cc: ebiederm@xmission.com
Cc: jbarnes@virtuousgeek.org
Cc: steiner@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/irq')
| -rw-r--r-- | kernel/irq/manage.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 46d6611a33bb..628b5572a7c2 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -87,7 +87,14 @@ int irq_set_affinity(unsigned int irq, cpumask_t cpumask) set_balance_irq_affinity(irq, cpumask); #ifdef CONFIG_GENERIC_PENDING_IRQ - set_pending_irq(irq, cpumask); + if (desc->status & IRQ_MOVE_PCNTXT) { + unsigned long flags; + + spin_lock_irqsave(&desc->lock, flags); + desc->chip->set_affinity(irq, cpumask); + spin_unlock_irqrestore(&desc->lock, flags); + } else + set_pending_irq(irq, cpumask); #else desc->affinity = cpumask; desc->chip->set_affinity(irq, cpumask); |