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Message-ID: <tip-47195d57636604ff6048b0d7aa3e4ed9643f6073@git.kernel.org>
Date: Thu, 25 Feb 2010 12:07:11 GMT
From: tip-bot for Don Zickus <dzickus@...hat.com>
To: linux-tip-commits@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
tglx@...utronix.de, mingo@...e.hu, dzickus@...hat.com
Subject: [tip:perf/nmi] nmi_watchdog: Clean up various small details
Commit-ID: 47195d57636604ff6048b0d7aa3e4ed9643f6073
Gitweb: http://git.kernel.org/tip/47195d57636604ff6048b0d7aa3e4ed9643f6073
Author: Don Zickus <dzickus@...hat.com>
AuthorDate: Mon, 22 Feb 2010 18:09:03 -0500
Committer: Ingo Molnar <mingo@...e.hu>
CommitDate: Thu, 25 Feb 2010 12:40:50 +0100
nmi_watchdog: Clean up various small details
Mostly copy/paste whitespace damage with a couple of nitpicks by
the checkpatch script. Fix the struct definition as requested by Ingo too.
Signed-off-by: Don Zickus <dzickus@...hat.com>
Cc: peterz@...radead.org
Cc: gorcunov@...il.com
Cc: aris@...hat.com
LKML-Reference: <1266880143-24943-1-git-send-email-dzickus@...hat.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
--
arch/x86/kernel/apic/hw_nmi.c | 14 +++++------
arch/x86/kernel/traps.c | 6 ++--
include/linux/nmi.h | 2 -
kernel/nmi_watchdog.c | 51 ++++++++++++++++++++----------------------
4 files changed, 36 insertions(+), 37 deletions(-)
---
arch/x86/kernel/apic/hw_nmi.c | 14 +++++-----
arch/x86/kernel/traps.c | 6 ++--
include/linux/nmi.h | 2 +-
kernel/nmi_watchdog.c | 51 ++++++++++++++++++++---------------------
4 files changed, 36 insertions(+), 37 deletions(-)
diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c
index 0b4d205..e8b78a0 100644
--- a/arch/x86/kernel/apic/hw_nmi.c
+++ b/arch/x86/kernel/apic/hw_nmi.c
@@ -38,15 +38,15 @@ static inline unsigned int get_timer_irqs(int cpu)
irqs += per_cpu(irq_stat, cpu).apic_timer_irqs;
#endif
- return irqs;
+ return irqs;
}
static inline int mce_in_progress(void)
{
#if defined(CONFIG_X86_MCE)
- return atomic_read(&mce_entry) > 0;
+ return atomic_read(&mce_entry) > 0;
#endif
- return 0;
+ return 0;
}
int hw_nmi_is_cpu_stuck(struct pt_regs *regs)
@@ -69,9 +69,9 @@ int hw_nmi_is_cpu_stuck(struct pt_regs *regs)
}
/* if we are doing an mce, just assume the cpu is not stuck */
- /* Could check oops_in_progress here too, but it's safer not to */
- if (mce_in_progress())
- return 0;
+ /* Could check oops_in_progress here too, but it's safer not to */
+ if (mce_in_progress())
+ return 0;
/* We determine if the cpu is stuck by checking whether any
* interrupts have happened since we last checked. Of course
@@ -89,7 +89,7 @@ int hw_nmi_is_cpu_stuck(struct pt_regs *regs)
u64 hw_nmi_get_sample_period(void)
{
- return cpu_khz * 1000;
+ return cpu_khz * 1000;
}
#ifdef ARCH_HAS_NMI_WATCHDOG
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 973cbc4..bdc7fab 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -402,9 +402,9 @@ static notrace __kprobes void default_do_nmi(struct pt_regs *regs)
return;
#ifdef CONFIG_X86_LOCAL_APIC
- if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT)
- == NOTIFY_STOP)
- return;
+ if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT)
+ == NOTIFY_STOP)
+ return;
#ifndef CONFIG_NMI_WATCHDOG
/*
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index 794e735..22cc796 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -57,7 +57,7 @@ u64 hw_nmi_get_sample_period(void);
extern int nmi_watchdog_enabled;
struct ctl_table;
extern int proc_nmi_enabled(struct ctl_table *, int ,
- void __user *, size_t *, loff_t *);
+ void __user *, size_t *, loff_t *);
#endif
#endif
diff --git a/kernel/nmi_watchdog.c b/kernel/nmi_watchdog.c
index 3c75cbf..0a6f57f 100644
--- a/kernel/nmi_watchdog.c
+++ b/kernel/nmi_watchdog.c
@@ -50,31 +50,31 @@ void touch_all_nmi_watchdog(void)
static int __init setup_nmi_watchdog(char *str)
{
- if (!strncmp(str, "panic", 5)) {
- panic_on_timeout = 1;
- str = strchr(str, ',');
- if (!str)
- return 1;
- ++str;
- }
- return 1;
+ if (!strncmp(str, "panic", 5)) {
+ panic_on_timeout = 1;
+ str = strchr(str, ',');
+ if (!str)
+ return 1;
+ ++str;
+ }
+ return 1;
}
__setup("nmi_watchdog=", setup_nmi_watchdog);
struct perf_event_attr wd_hw_attr = {
- .type = PERF_TYPE_HARDWARE,
- .config = PERF_COUNT_HW_CPU_CYCLES,
- .size = sizeof(struct perf_event_attr),
- .pinned = 1,
- .disabled = 1,
+ .type = PERF_TYPE_HARDWARE,
+ .config = PERF_COUNT_HW_CPU_CYCLES,
+ .size = sizeof(struct perf_event_attr),
+ .pinned = 1,
+ .disabled = 1,
};
struct perf_event_attr wd_sw_attr = {
- .type = PERF_TYPE_SOFTWARE,
- .config = PERF_COUNT_SW_CPU_CLOCK,
- .size = sizeof(struct perf_event_attr),
- .pinned = 1,
- .disabled = 1,
+ .type = PERF_TYPE_SOFTWARE,
+ .config = PERF_COUNT_SW_CPU_CLOCK,
+ .size = sizeof(struct perf_event_attr),
+ .pinned = 1,
+ .disabled = 1,
};
void wd_overflow(struct perf_event *event, int nmi,
@@ -95,16 +95,15 @@ void wd_overflow(struct perf_event *event, int nmi,
* Ayiee, looks like this CPU is stuck ...
* wait a few IRQs (5 seconds) before doing the oops ...
*/
- per_cpu(alert_counter,cpu) += 1;
- if (per_cpu(alert_counter,cpu) == 5) {
- if (panic_on_timeout) {
+ per_cpu(alert_counter, cpu) += 1;
+ if (per_cpu(alert_counter, cpu) == 5) {
+ if (panic_on_timeout)
panic("NMI Watchdog detected LOCKUP on cpu %d", cpu);
- } else {
+ else
WARN(1, "NMI Watchdog detected LOCKUP on cpu %d", cpu);
- }
}
} else {
- per_cpu(alert_counter,cpu) = 0;
+ per_cpu(alert_counter, cpu) = 0;
}
return;
@@ -126,7 +125,7 @@ static int enable_nmi_watchdog(int cpu)
event = perf_event_create_kernel_counter(wd_attr, cpu, -1, wd_overflow);
if (IS_ERR(event)) {
/* hardware doesn't exist or not supported, fallback to software events */
- printk("nmi_watchdog: hardware not available, trying software events\n");
+ printk(KERN_INFO "nmi_watchdog: hardware not available, trying software events\n");
wd_attr = &wd_sw_attr;
wd_attr->sample_period = NSEC_PER_SEC;
event = perf_event_create_kernel_counter(wd_attr, cpu, -1, wd_overflow);
@@ -182,7 +181,7 @@ int proc_nmi_enabled(struct ctl_table *table, int write,
if (nmi_watchdog_enabled) {
for_each_online_cpu(cpu)
if (enable_nmi_watchdog(cpu)) {
- printk("NMI watchdog failed configuration, "
+ printk(KERN_ERR "NMI watchdog failed configuration, "
" can not be enabled\n");
}
} else {
--
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