diff options
author | Suresh Siddha <suresh.b.siddha@intel.com> | 2008-07-10 14:16:45 -0400 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-07-12 02:44:55 -0400 |
commit | 72b1e22dfcad1daca6906148fd956ffe404bb0bc (patch) | |
tree | 9ca9c198c7bd592528c322002bada84bc3e9d84d /kernel/irq | |
parent | b6fcb33ad6c05f152a672f7c96c1fab006527b80 (diff) |
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) | |||
87 | set_balance_irq_affinity(irq, cpumask); | 87 | set_balance_irq_affinity(irq, cpumask); |
88 | 88 | ||
89 | #ifdef CONFIG_GENERIC_PENDING_IRQ | 89 | #ifdef CONFIG_GENERIC_PENDING_IRQ |
90 | set_pending_irq(irq, cpumask); | 90 | if (desc->status & IRQ_MOVE_PCNTXT) { |
91 | unsigned long flags; | ||
92 | |||
93 | spin_lock_irqsave(&desc->lock, flags); | ||
94 | desc->chip->set_affinity(irq, cpumask); | ||
95 | spin_unlock_irqrestore(&desc->lock, flags); | ||
96 | } else | ||
97 | set_pending_irq(irq, cpumask); | ||
91 | #else | 98 | #else |
92 | desc->affinity = cpumask; | 99 | desc->affinity = cpumask; |
93 | desc->chip->set_affinity(irq, cpumask); | 100 | desc->chip->set_affinity(irq, cpumask); |