x86: use percpu data for 4k hardirq and softirq stacks

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Impact: economize memory for large NR_CPUS

percpu data is setup earlier than irq, we can use percpu data
to economize memory.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

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Lai Jiangshan 2009-02-17 11:46:42 +08:00 • committed by Tejun Heo

parent 58105ef185

commit 42f8faecf7

1 changed files with 15 additions and 14 deletions

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arch/x86/kernel/irq_32.c

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