x86, nmi_watchdog: Remove the old nmi_watchdog
Now that we have a new nmi_watchdog that is more generic and
sits on top of the perf subsystem, we really do not need the old
nmi_watchdog any more.
In addition, the old nmi_watchdog doesn't really work if you are
using the default clocksource, hpet. The old nmi_watchdog code
relied on local apic interrupts to determine if the cpu is still
alive. With hpet as the clocksource, these interrupts don't
increment any more and the old nmi_watchdog triggers false
postives.
This piece removes the old nmi_watchdog code and stubs out any
variables and functions calls. The stubs are the same ones used
by the new nmi_watchdog code, so it should be well tested.
Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: fweisbec@gmail.com
Cc: gorcunov@openvz.org
LKML-Reference: <1289578944-28564-2-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index 06aab5e..0cb3e5c 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -16,10 +16,7 @@
*/
#ifdef ARCH_HAS_NMI_WATCHDOG
#include <asm/nmi.h>
-extern void touch_nmi_watchdog(void);
-extern void acpi_nmi_disable(void);
-extern void acpi_nmi_enable(void);
-#else
+#endif
#ifndef CONFIG_HARDLOCKUP_DETECTOR
static inline void touch_nmi_watchdog(void)
{
@@ -30,7 +27,6 @@
#endif
static inline void acpi_nmi_disable(void) { }
static inline void acpi_nmi_enable(void) { }
-#endif
/*
* Create trigger_all_cpu_backtrace() out of the arch-provided