From 7c9034735eccbf82608a4602c59aaf6053ea9416 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Tue, 26 Jul 2005 11:29:55 -0600 Subject: [PATCH] Add emergency_restart() When the kernel is working well and we want to restart cleanly kernel_restart is the function to use. But in many instances the kernel wants to reboot when thing are expected to be working very badly such as from panic or a software watchdog handler. This patch adds the function emergency_restart() so that callers can be clear what semantics they expect when calling restart. emergency_restart() is expected to be callable from interrupt context and possibly reliable in even more trying circumstances. This is an initial generic implementation for all architectures. Signed-off-by: Eric W. Biederman Signed-off-by: Linus Torvalds --- kernel/sys.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'kernel/sys.c') diff --git a/kernel/sys.c b/kernel/sys.c index 31ac41a7332..a74039036fb 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -361,6 +361,12 @@ out_unlock: return retval; } +void emergency_restart(void) +{ + machine_emergency_restart(); +} +EXPORT_SYMBOL_GPL(emergency_restart); + void kernel_restart(char *cmd) { notifier_call_chain(&reboot_notifier_list, SYS_RESTART, cmd); -- cgit v1.2.3-70-g09d2