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[PATCH] Add emergency_restart()

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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 <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Eric W. Biederman
2005-07-26 11:29:55 -06:00
committed by Linus Torvalds
parent abcd9e51f5
commit 7c9034735e
27 changed files with 166 additions and 0 deletions
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6
include/asm-sparc/emergency-restart.h Normal file
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#ifndef _ASM_EMERGENCY_RESTART_H
#define _ASM_EMERGENCY_RESTART_H
#include <asm-generic/emergency-restart.h>
#endif /* _ASM_EMERGENCY_RESTART_H */