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authorDon Zickus <dzickus@redhat.com>2010-11-29 17:07:17 -0500
committerIngo Molnar <mingo@elte.hu>2010-12-10 00:01:06 +0100
commit5dc3055879b8f659f62abb7c3d1eaa4d02e36d65 (patch)
tree823b69dd3ed28bc9d05fc4ecf31e780341efdf5b /kernel/watchdog.c
parent96a84c20d635fb1e98ab92f9fc517c4441f5c424 (diff)
downloadlinux-5dc3055879b8f659f62abb7c3d1eaa4d02e36d65.tar.gz
x86, NMI: Add back unknown_nmi_panic and nmi_watchdog sysctls
Originally adapted from Huang Ying's patch which moved the
unknown_nmi_panic to the traps.c file.  Because the old nmi
watchdog was deleted before this change happened, the
unknown_nmi_panic sysctl was lost.  This re-adds it.

Also, the nmi_watchdog sysctl was re-implemented and its
documentation updated accordingly.

Patch-inspired-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Cc: fweisbec@gmail.com
LKML-Reference: <1291068437-5331-3-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/watchdog.c')
-rw-r--r--kernel/watchdog.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index cad4e42060a9..eb17e143b5da 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -57,6 +57,8 @@ static int __init hardlockup_panic_setup(char *str)
 {
 	if (!strncmp(str, "panic", 5))
 		hardlockup_panic = 1;
+	else if (!strncmp(str, "0", 1))
+		no_watchdog = 1;
 	return 1;
 }
 __setup("nmi_watchdog=", hardlockup_panic_setup);