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-rw-r--r--arch/i386/kernel/nmi.c21
1 files changed, 4 insertions, 17 deletions
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c
index 28065d0b71a9..6241e4448cab 100644
--- a/arch/i386/kernel/nmi.c
+++ b/arch/i386/kernel/nmi.c
@@ -847,7 +847,7 @@ static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu)
847} 847}
848 848
849/* 849/*
850 * proc handler for /proc/sys/kernel/nmi_watchdog 850 * proc handler for /proc/sys/kernel/nmi
851 */ 851 */
852int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file, 852int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file,
853 void __user *buffer, size_t *length, loff_t *ppos) 853 void __user *buffer, size_t *length, loff_t *ppos)
@@ -861,8 +861,8 @@ int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file,
861 return 0; 861 return 0;
862 862
863 if (atomic_read(&nmi_active) < 0) { 863 if (atomic_read(&nmi_active) < 0) {
864 printk(KERN_WARNING "NMI watchdog is permanently disabled\n"); 864 printk( KERN_WARNING "NMI watchdog is permanently disabled\n");
865 return -EINVAL; 865 return -EIO;
866 } 866 }
867 867
868 if (nmi_watchdog == NMI_DEFAULT) { 868 if (nmi_watchdog == NMI_DEFAULT) {
@@ -872,24 +872,11 @@ int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file,
872 nmi_watchdog = NMI_IO_APIC; 872 nmi_watchdog = NMI_IO_APIC;
873 } 873 }
874 874
875 if (nmi_watchdog == NMI_LOCAL_APIC) 875 if (nmi_watchdog == NMI_LOCAL_APIC) {
876 {
877 if (nmi_watchdog_enabled) 876 if (nmi_watchdog_enabled)
878 enable_lapic_nmi_watchdog(); 877 enable_lapic_nmi_watchdog();
879 else 878 else
880 disable_lapic_nmi_watchdog(); 879 disable_lapic_nmi_watchdog();
881 } else if (nmi_watchdog == NMI_IO_APIC) {
882 /* FIXME
883 * for some reason these functions don't work
884 */
885 printk("Can not enable/disable NMI on IO APIC\n");
886 return -EINVAL;
887#if 0
888 if (nmi_watchdog_enabled)
889 enable_timer_nmi_watchdog();
890 else
891 disable_timer_nmi_watchdog();
892#endif
893 } else { 880 } else {
894 printk( KERN_WARNING 881 printk( KERN_WARNING
895 "NMI watchdog doesn't know what hardware to touch\n"); 882 "NMI watchdog doesn't know what hardware to touch\n");