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pm: schedule sysrq poweroff on boot cpu

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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

[[email protected]: build fix]
Signed-off-by: Zhang Rui <[email protected]>
Tested-by: Rus <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Signed-off-by: KOSAKI Motohiro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Zhang Rui authored and Linus Torvalds committed 2008-07-24 10:47:24 -07:00
1 parent c1a220e7ac
commit 2f15fc4bdf
1 file changed
+3 -1
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kernel/power/poweroff.c
+3 -1
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@@ -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 = {