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-rw-r--r--kernel/watchdog.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index d12ff74889ed..51915b44ac73 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -78,6 +78,7 @@ void __init hardlockup_detector_disable(void)
static int __init hardlockup_panic_setup(char *str)
{
+next:
if (!strncmp(str, "panic", 5))
hardlockup_panic = 1;
else if (!strncmp(str, "nopanic", 7))
@@ -86,6 +87,14 @@ static int __init hardlockup_panic_setup(char *str)
watchdog_hardlockup_user_enabled = 0;
else if (!strncmp(str, "1", 1))
watchdog_hardlockup_user_enabled = 1;
+ else if (!strncmp(str, "r", 1))
+ hardlockup_config_perf_event(str + 1);
+ while (*(str++)) {
+ if (*str == ',') {
+ str++;
+ goto next;
+ }
+ }
return 1;
}
__setup("nmi_watchdog=", hardlockup_panic_setup);
@@ -1155,7 +1164,6 @@ static struct ctl_table watchdog_sysctls[] = {
},
#endif /* CONFIG_SMP */
#endif
- {}
};
static struct ctl_table watchdog_hardlockup_sysctl[] = {
@@ -1168,7 +1176,6 @@ static struct ctl_table watchdog_hardlockup_sysctl[] = {
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
- {}
};
static void __init watchdog_sysctl_init(void)