commit 04c6862c055fb687c90d9652f32c11a063df15cf
author Seiji Aguchi <seiji.aguchi@hds.com> Wed Jan 12 16:59:30 2011 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> Thu Jan 13 08:03:07 2011 -0800
tree b381c4c2005118f05ce8d2f3d363b73807c0eddf
parent fc2d557c74dc58294b9acc7231a2113ae59af97c

kmsg_dump: add kmsg_dump() calls to the reboot, halt, poweroff and emergency_restart paths

We need to know the reason why system rebooted in support service.
However, we can't inform our customers of the reason because final
messages are lost on current Linux kernel.

This patch improves the situation above because the final messages are
saved by adding kmsg_dump() to reboot, halt, poweroff and
emergency_restart path.

Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Marco Stornelli <marco.stornelli@gmail.com>
Reviewed-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>