powerpc/smp: add generic_set_cpu_up() to set cpu_state as CPU_UP_PREPARE
authorZhao Chenhui <chenhui.zhao@freescale.com>
Fri, 20 Jul 2012 12:42:34 +0000 (20:42 +0800)
committerKumar Gala <galak@kernel.crashing.org>
Wed, 12 Sep 2012 19:57:08 +0000 (14:57 -0500)
commitae5cab476342bc7311945cf89d5cbd8d57f4a5a9
treeac19bdca1a55fd3a78d1546f3f94bb83ea641802
parent15f34eb12340b2c2e0cd90c5987ad6b5f73b79b7
powerpc/smp: add generic_set_cpu_up() to set cpu_state as CPU_UP_PREPARE

In the case of cpu hotplug, the cpu_state should be set to CPU_UP_PREPARE
when kicking cpu.  Otherwise, the cpu_state is always CPU_DEAD after
calling generic_set_cpu_dead(), which makes the delay in generic_cpu_die()
not happen.

Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
arch/powerpc/include/asm/smp.h
arch/powerpc/kernel/smp.c