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nmi_watchdog: Config option to enable new nmi_watchdog

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These are the bits that enable the new nmi_watchdog and safely
isolate the old nmi_watchdog.  Only one or the other can run,
not both at the same time.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: gorcunov@gmail.com
Cc: aris@redhat.com
Cc: peterz@infradead.org
LKML-Reference: <1265424425-31562-4-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Don Zickus
2010-02-05 21:47:05 -05:00
committed by Ingo Molnar
parent 1fb9d6ad27
commit 84e478c6f1
5 changed files with 26 additions and 1 deletions
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include/linux/nmi.h
+4
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@@ -47,4 +47,8 @@ static inline bool trigger_all_cpu_backtrace(void)
}
#endif
#ifdef CONFIG_NMI_WATCHDOG
int hw_nmi_is_cpu_stuck(struct pt_regs *);
#endif
#endif