diff options
Diffstat (limited to 'arch/x86/kernel/nmi_32.c')
| -rw-r--r-- | arch/x86/kernel/nmi_32.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/x86/kernel/nmi_32.c b/arch/x86/kernel/nmi_32.c index 6a0aa703868..11b14bbaa61 100644 --- a/arch/x86/kernel/nmi_32.c +++ b/arch/x86/kernel/nmi_32.c @@ -22,9 +22,11 @@ #include <linux/cpumask.h> #include <linux/kernel_stat.h> #include <linux/kdebug.h> +#include <linux/slab.h> #include <asm/smp.h> #include <asm/nmi.h> +#include <asm/timer.h> #include "mach_traps.h" @@ -67,7 +69,7 @@ static __init void nmi_cpu_busy(void *data) } #endif -static int __init check_nmi_watchdog(void) +int __init check_nmi_watchdog(void) { unsigned int *prev_nmi_count; int cpu; @@ -80,7 +82,7 @@ static int __init check_nmi_watchdog(void) prev_nmi_count = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL); if (!prev_nmi_count) - return -1; + goto error; printk(KERN_INFO "Testing NMI watchdog ... "); @@ -117,7 +119,7 @@ static int __init check_nmi_watchdog(void) if (!atomic_read(&nmi_active)) { kfree(prev_nmi_count); atomic_set(&nmi_active, -1); - return -1; + goto error; } printk("OK.\n"); @@ -128,9 +130,11 @@ static int __init check_nmi_watchdog(void) kfree(prev_nmi_count); return 0; +error: + timer_ack = !cpu_has_tsc; + + return -1; } -/* This needs to happen later in boot so counters are working */ -late_initcall(check_nmi_watchdog); static int __init setup_nmi_watchdog(char *str) { @@ -317,7 +321,8 @@ EXPORT_SYMBOL(touch_nmi_watchdog); extern void die_nmi(struct pt_regs *, const char *msg); -__kprobes int nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) +notrace __kprobes int +nmi_watchdog_tick(struct pt_regs *regs, unsigned reason) { /* |