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authorLen Brown <len.brown@intel.com>2009-04-05 08:14:15 +0200
committerLen Brown <len.brown@intel.com>2009-04-05 08:14:15 +0200
commit478c6a43fcbc6c11609f8cee7c7b57223907754f (patch)
treea7f7952099da60d33032aed6de9c0c56c9f8779e /arch/sparc/kernel/nmi.c
parentMerge branch 'misc' into release (diff)
parentMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kern... (diff)
downloadlinux-478c6a43fcbc6c11609f8cee7c7b57223907754f.tar.xz
linux-478c6a43fcbc6c11609f8cee7c7b57223907754f.zip
Merge branch 'linus' into release
Conflicts: arch/x86/kernel/cpu/cpufreq/longhaul.c Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'arch/sparc/kernel/nmi.c')
-rw-r--r--arch/sparc/kernel/nmi.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c
index f3577223c863..2c0cc72d295b 100644
--- a/arch/sparc/kernel/nmi.c
+++ b/arch/sparc/kernel/nmi.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/kprobes.h>
#include <linux/kernel_stat.h>
+#include <linux/reboot.h>
#include <linux/slab.h>
#include <linux/kdebug.h>
#include <linux/delay.h>
@@ -206,13 +207,33 @@ void nmi_adjust_hz(unsigned int new_hz)
}
EXPORT_SYMBOL_GPL(nmi_adjust_hz);
+static int nmi_shutdown(struct notifier_block *nb, unsigned long cmd, void *p)
+{
+ on_each_cpu(stop_watchdog, NULL, 1);
+ return 0;
+}
+
+static struct notifier_block nmi_reboot_notifier = {
+ .notifier_call = nmi_shutdown,
+};
+
int __init nmi_init(void)
{
+ int err;
+
nmi_usable = 1;
on_each_cpu(start_watchdog, NULL, 1);
- return check_nmi_watchdog();
+ err = check_nmi_watchdog();
+ if (!err) {
+ err = register_reboot_notifier(&nmi_reboot_notifier);
+ if (err) {
+ nmi_usable = 0;
+ on_each_cpu(stop_watchdog, NULL, 1);
+ }
+ }
+ return err;
}
static int __init setup_nmi_watchdog(char *str)