The patch titled
pm: schedule sysrq poweroff on boot cpu
has been added to the -mm tree. Its filename is
pm-schedule-sysrq-poweroff-on-boot-cpu.patch
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------------------------------------------------------
Subject: pm: schedule sysrq poweroff on boot cpu
From: Zhang Rui <rui.zhang@xxxxxxxxx>
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
Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
Tested-by: Rus <harbour@xxxxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/power/poweroff.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN kernel/power/poweroff.c~pm-schedule-sysrq-poweroff-on-boot-cpu kernel/power/poweroff.c
--- a/kernel/power/poweroff.c~pm-schedule-sysrq-poweroff-on-boot-cpu
+++ a/kernel/power/poweroff.c
@@ -25,7 +25,8 @@ static DECLARE_WORK(poweroff_work, do_po
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 = {
_
Patches currently in -mm which might be from rui.zhang@xxxxxxxxx are
linux-next.patch
pm-ahci-speed-up-resume.patch
pm-introduce-new-interfaces-schedule_work_on-and-queue_work_on.patch
pm-schedule-sysrq-poweroff-on-boot-cpu.patch
dcdbas-use-memory_read_from_buffer.patch
dell_rbu-use-memory_read_from_buffer.patch
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