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Subject[PATCH 12/23] Update sysrq-B to use emergency_restart()

sysrq calls into the reboot path from an interrupt handler
we can either push the code do into process context and
call kernel_restart and get a clean reboot or we can simply
reboot the machine, and increase our chances of actually
rebooting. emergency_reboot() seems like the closest match
to what we have previously done, and what we want.

Signed-off-by: Eric W. Biederman <>

drivers/char/sysrq.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -115,7 +115,7 @@ static void sysrq_handle_reboot(int key,
struct tty_struct *tty)
- machine_restart(NULL);
+ emergency_restart();

static struct sysrq_key_op sysrq_reboot_op = {
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