tree 2fc96ba798b7a8d014adcbcd7dbcdb2d93ca6d51
parent 6d36a9dd1dcdd053ab32f303b94cc1bae5a47f22
author Shawn Guo <shawn.guo@linaro.org> 1349395943 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1350074318 +0900

kernel/sys.c: call disable_nonboot_cpus() in kernel_restart()

commit f96972f2dc6365421cf2366ebd61ee4cf060c8d5 upstream.

As kernel_power_off() calls disable_nonboot_cpus(), we may also want to
have kernel_restart() call disable_nonboot_cpus().  Doing so can help
machines that require boot cpu be the last alive cpu during reboot to
survive with kernel restart.

This fixes one reboot issue seen on imx6q (Cortex-A9 Quad).  The machine
requires that the restart routine be run on the primary cpu rather than
secondary ones.  Otherwise, the secondary core running the restart
routine will fail to come to online after reboot.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>