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sparseirq: fix numa_migrate_irq_desc dependency and comments

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Impact: reduce kconfig variable scope and clean up

Bartlomiej pointed out that the config dependencies and comments are not right.

update it depend to NUMA, and fix some comments

Reported-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu 2008-12-19 13:48:34 -08:00 committed by Ingo Molnar
parent 078a55db07
commit b909895739
3 changed files with 5 additions and 10 deletions
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2
arch/x86/Kconfig
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@ -250,7 +250,7 @@ config SPARSE_IRQ
config NUMA_MIGRATE_IRQ_DESC config NUMA_MIGRATE_IRQ_DESC
bool "Move irq desc when changing irq smp_affinity" bool "Move irq desc when changing irq smp_affinity"
depends on SPARSE_IRQ && SMP depends on SPARSE_IRQ && NUMA
default n default n
help help
This enables moving irq_desc to cpu/node that irq will use handled. This enables moving irq_desc to cpu/node that irq will use handled.

2
arch/x86/kernel/io_apic.c
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@ -2471,7 +2471,7 @@ static void irq_complete_move(struct irq_desc **descp)
if (likely(!cfg->move_desc_pending)) if (likely(!cfg->move_desc_pending))
return; return;
/* domain is not change, but affinity is changed */ /* domain has not changed, but affinity did */
me = smp_processor_id(); me = smp_processor_id();
if (cpu_isset(me, desc->affinity)) { if (cpu_isset(me, desc->affinity)) {
*descp = desc = move_irq_desc(desc, me); *descp = desc = move_irq_desc(desc, me);

11
kernel/irq/numa_migrate.c
View File

@ -1,13 +1,8 @@
/* /*
* linux/kernel/irq/handle.c * NUMA irq-desc migration code
*
* Copyright (C) 1992, 1998-2006 Linus Torvalds, Ingo Molnar
* Copyright (C) 2005-2006, Thomas Gleixner, Russell King
*
* This file contains the core interrupt handling code.
*
* Detailed information is available in Documentation/DocBook/genericirq
* *
* Migrate IRQ data structures (irq_desc, chip_data, etc.) over to
* the new "home node" of the IRQ.
*/ */
#include <linux/irq.h> #include <linux/irq.h>