diff options
| -rw-r--r-- | arch/x86/kernel/apic_64.c | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/io_apic_64.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/nmi.c | 26 | ||||
| -rw-r--r-- | arch/x86/kernel/smpboot.c | 1 | ||||
| -rw-r--r-- | include/asm-x86/nmi.h | 3 |
5 files changed, 3 insertions, 30 deletions
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c index 8c751f731bc..1e3d32e27c1 100644 --- a/arch/x86/kernel/apic_64.c +++ b/arch/x86/kernel/apic_64.c @@ -826,7 +826,6 @@ static void __cpuinit lapic_setup_esr(void) void __cpuinit end_local_APIC_setup(void) { lapic_setup_esr(); - nmi_watchdog_default(); setup_apic_nmi_watchdog(NULL); apic_pm_activate(); } diff --git a/arch/x86/kernel/io_apic_64.c b/arch/x86/kernel/io_apic_64.c index 08c48750888..2b4c40bc12c 100644 --- a/arch/x86/kernel/io_apic_64.c +++ b/arch/x86/kernel/io_apic_64.c @@ -1729,7 +1729,6 @@ static inline void __init check_timer(void) } unmask_IO_APIC_irq(0); if (!no_timer_check && timer_irq_works()) { - nmi_watchdog_default(); if (nmi_watchdog == NMI_IO_APIC) { setup_nmi(); enable_8259A_irq(0); @@ -1758,7 +1757,6 @@ static inline void __init check_timer(void) if (timer_irq_works()) { apic_printk(APIC_VERBOSE," works.\n"); timer_through_8259 = 1; - nmi_watchdog_default(); if (nmi_watchdog == NMI_IO_APIC) { disable_8259A_irq(0); setup_nmi(); diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c index 427c511e7ad..32acda25e3c 100644 --- a/arch/x86/kernel/nmi.c +++ b/arch/x86/kernel/nmi.c @@ -52,7 +52,7 @@ static cpumask_t backtrace_mask = CPU_MASK_NONE; atomic_t nmi_active = ATOMIC_INIT(0); /* oprofile uses this */ EXPORT_SYMBOL(nmi_active); -unsigned int nmi_watchdog = NMI_DEFAULT; +unsigned int nmi_watchdog = NMI_NONE; EXPORT_SYMBOL(nmi_watchdog); static int panic_on_timeout; @@ -92,14 +92,6 @@ static inline unsigned int get_timer_irqs(int cpu) #endif } -/* Run after command line and cpu_init init, but before all other checks */ -void nmi_watchdog_default(void) -{ - if (nmi_watchdog != NMI_DEFAULT) - return; - nmi_watchdog = NMI_NONE; -} - #ifdef CONFIG_SMP /* * The performance counters used by NMI_LOCAL_APIC don't trigger when @@ -127,7 +119,7 @@ int __init check_nmi_watchdog(void) unsigned int *prev_nmi_count; int cpu; - if (nmi_watchdog == NMI_NONE || nmi_watchdog == NMI_DISABLED) + if (nmi_watchdog == NMI_NONE) return 0; if (!atomic_read(&nmi_active)) @@ -482,24 +474,12 @@ int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file, if (!!old_state == !!nmi_watchdog_enabled) return 0; - if (atomic_read(&nmi_active) < 0 || nmi_watchdog == NMI_DISABLED) { + if (atomic_read(&nmi_active) < 0 || nmi_watchdog == NMI_NONE) { printk(KERN_WARNING "NMI watchdog is permanently disabled\n"); return -EIO; } - /* if nmi_watchdog is not set yet, then set it */ - nmi_watchdog_default(); - -#ifdef CONFIG_X86_32 - if (nmi_watchdog == NMI_NONE) { - if (lapic_watchdog_ok()) - nmi_watchdog = NMI_LOCAL_APIC; - else - nmi_watchdog = NMI_IO_APIC; - } -#endif - if (nmi_watchdog == NMI_LOCAL_APIC) { if (nmi_watchdog_enabled) enable_lapic_nmi_watchdog(); diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 3b48d1f4c7c..3b19441d78b 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1139,7 +1139,6 @@ static void __init smp_cpu_index_default(void) void __init native_smp_prepare_cpus(unsigned int max_cpus) { preempt_disable(); - nmi_watchdog_default(); smp_cpu_index_default(); current_cpu_data = boot_cpu_data; cpu_callin_map = cpumask_of_cpu(0); diff --git a/include/asm-x86/nmi.h b/include/asm-x86/nmi.h index f0e435dd38f..1348e542360 100644 --- a/include/asm-x86/nmi.h +++ b/include/asm-x86/nmi.h @@ -20,7 +20,6 @@ extern void default_do_nmi(struct pt_regs *); #endif extern void die_nmi(char *str, struct pt_regs *regs, int do_panic); -extern void nmi_watchdog_default(void); extern int check_nmi_watchdog(void); extern int nmi_watchdog_enabled; extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); @@ -38,12 +37,10 @@ extern int nmi_watchdog_tick(struct pt_regs *regs, unsigned reason); extern atomic_t nmi_active; extern unsigned int nmi_watchdog; -#define NMI_DISABLED -1 #define NMI_NONE 0 #define NMI_IO_APIC 1 #define NMI_LOCAL_APIC 2 #define NMI_INVALID 3 -#define NMI_DEFAULT NMI_DISABLED struct ctl_table; struct file; |