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x86/irq: change irq_desc_alloc() to take node instead of cpu

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This simplifies the node awareness of the code. All our allocators
only deal with a NUMA node ID locality not with CPU ids anyway - so
there's no need to maintain (and transform) a CPU id all across the
IRq layer.

v2: keep move_irq_desc related

[ Impact: cleanup, prepare IRQ code to be NUMA-aware ]

Signed-off-by: Yinghai Lu <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Suresh Siddha <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: Jeremy Fitzhardinge <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Yinghai Lu 2009-04-27 18:00:38 -07:00 • committed by Ingo Molnar
commit 85ac16d033
10 changed files with 66 additions and 97 deletions
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2
drivers/xen/events.c
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@ -335,7 +335,7 @@ static int find_unbound_irq(void)
if (irq == nr_irqs)
panic("No available IRQ to bind to: increase nr_irqs!\n");
desc = irq_to_desc_alloc_cpu(irq, 0);
desc = irq_to_desc_alloc_node(irq, 0);
if (WARN_ON(desc == NULL))
return -1;