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Commit 2f15fc4b authored by Zhang Rui's avatar Zhang Rui Committed by Linus Torvalds
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pm: schedule sysrq poweroff on boot cpu 

schedule sysrq poweroff on boot cpu.

sysrq poweroff needs to disable nonboot cpus, and we need to run this on boot
cpu to avoid any recursion.  http://bugzilla.kernel.org/show_bug.cgi?id=10897



[kosaki.motohiro@jp.fujitsu.com: build fix]
Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
Tested-by: default avatarRus <harbour@sfinx.od.ua>
Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
Acked-by: default avatarPavel Machek <pavel@ucw.cz>
Signed-off-by: default avatarKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c1a220e7

kernel/power/poweroff.c

+3 −1
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
#include <linux/pm.h>

#include <linux/workqueue.h>

#include <linux/reboot.h>

#include <linux/cpumask.h>



/*

 * When the user hits Sys-Rq o to power down the machine this is the
@@ -25,7 +26,8 @@ static DECLARE_WORK(poweroff_work, do_poweroff); 


static void handle_poweroff(int key, struct tty_struct *tty)

{

	schedule_work(&poweroff_work);

	/* run sysrq poweroff on boot cpu */

	schedule_work_on(first_cpu(cpu_online_map), &poweroff_work);

}



static struct sysrq_key_op	sysrq_poweroff_op = {