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authorDon Zickus <dzickus@redhat.com>2006-09-26 10:52:27 +0200
committerAndi Kleen <andi@basil.nowhere.org>2006-09-26 10:52:27 +0200
commit407984f1af259b31957c7c05075a454a751bb801 (patch)
tree1e9318b4255957c27a4dbacd84711604bf789393 /include
parent2fbe7b25c8edaf2d10e6c1a4cc9f8afe714c4764 (diff)
downloadblackbird-op-linux-407984f1af259b31957c7c05075a454a751bb801.tar.gz
blackbird-op-linux-407984f1af259b31957c7c05075a454a751bb801.zip
[PATCH] x86: Add abilty to enable/disable nmi watchdog with sysctl
Adds a new /proc/sys/kernel/nmi call that will enable/disable the nmi watchdog. Signed-off-by: Don Zickus <dzickus@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'include')
-rw-r--r--include/asm-i386/nmi.h1
-rw-r--r--include/asm-x86_64/nmi.h1
-rw-r--r--include/linux/sysctl.h1
3 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-i386/nmi.h b/include/asm-i386/nmi.h
index 34d6bf063b6e..13b5d8311bf7 100644
--- a/include/asm-i386/nmi.h
+++ b/include/asm-i386/nmi.h
@@ -14,6 +14,7 @@
*/
int do_nmi_callback(struct pt_regs *regs, int cpu);
+extern int nmi_watchdog_enabled;
extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
extern int avail_to_resrv_perfctr_nmi(unsigned int);
extern int reserve_perfctr_nmi(unsigned int);
diff --git a/include/asm-x86_64/nmi.h b/include/asm-x86_64/nmi.h
index 8818c39d34e0..2c23b0df87d2 100644
--- a/include/asm-x86_64/nmi.h
+++ b/include/asm-x86_64/nmi.h
@@ -43,6 +43,7 @@ extern void die_nmi(char *str, struct pt_regs *regs);
extern int panic_on_timeout;
extern int unknown_nmi_panic;
+extern int nmi_watchdog_enabled;
extern int check_nmi_watchdog(void);
extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 736ed917a4f8..ecb79ba52ae1 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -150,6 +150,7 @@ enum
KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */
KERN_COMPAT_LOG=73, /* int: print compat layer messages */
KERN_MAX_LOCK_DEPTH=74,
+ KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */
};
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