tree d8800a1ea5f697f6870abc51d0a626c6440e4e51
parent 58105ef1857112a186696c9b8957020090226a28
author Lai Jiangshan <laijs@cn.fujitsu.com> 1234842402 +0800
committer Tejun Heo <tj@kernel.org> 1235114770 +0900

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

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>