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authorThomas Gleixner <tglx@linutronix.de>2017-09-12 21:37:15 +0200
committerIngo Molnar <mingo@kernel.org>2017-09-14 11:41:07 +0200
commit7feeb9cd4f5b34476ffb9e6d58d58c5416375b19 (patch)
treea4a1c3abb9eda23f977cf1e0ebd5a8f2c525760f /kernel/watchdog.c
parentwatchdog/sysctl: Get rid of the #ifdeffery (diff)
downloadlinux-7feeb9cd4f5b34476ffb9e6d58d58c5416375b19.tar.xz
linux-7feeb9cd4f5b34476ffb9e6d58d58c5416375b19.zip
watchdog/sysctl: Clean up sysctl variable name space
Reflect that these variables are user interface related and remove the whitespace damage in the sysctl table while at it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Don Zickus <dzickus@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Ulrich Obergfell <uobergfe@redhat.com> Link: http://lkml.kernel.org/r/20170912194147.783210221@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/watchdog.c')
-rw-r--r--kernel/watchdog.c41
1 files changed, 20 insertions, 21 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index ca8747221e87..baae9fc95031 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -31,8 +31,6 @@
static DEFINE_MUTEX(watchdog_mutex);
-int __read_mostly nmi_watchdog_enabled;
-
#if defined(CONFIG_HARDLOCKUP_DETECTOR) || defined(CONFIG_HAVE_NMI_WATCHDOG)
unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED |
NMI_WATCHDOG_ENABLED;
@@ -40,6 +38,17 @@ unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED |
unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED;
#endif
+int __read_mostly nmi_watchdog_user_enabled;
+int __read_mostly soft_watchdog_user_enabled;
+int __read_mostly watchdog_user_enabled;
+int __read_mostly watchdog_thresh = 10;
+
+struct cpumask watchdog_allowed_mask __read_mostly;
+static bool softlockup_threads_initialized __read_mostly;
+
+struct cpumask watchdog_cpumask __read_mostly;
+unsigned long *watchdog_cpumask_bits = cpumask_bits(&watchdog_cpumask);
+
#ifdef CONFIG_HARDLOCKUP_DETECTOR
/*
* Should we panic when a soft-lockup or hard-lockup occurs:
@@ -85,12 +94,6 @@ __setup("hardlockup_all_cpu_backtrace=", hardlockup_all_cpu_backtrace_setup);
# endif /* CONFIG_SMP */
#endif /* CONFIG_HARDLOCKUP_DETECTOR */
-int __read_mostly watchdog_user_enabled;
-int __read_mostly watchdog_thresh = 10;
-
-struct cpumask watchdog_cpumask __read_mostly;
-unsigned long *watchdog_cpumask_bits = cpumask_bits(&watchdog_cpumask);
-
/*
* These functions can be overridden if an architecture implements its
* own hardlockup detector.
@@ -113,7 +116,7 @@ void __weak watchdog_nmi_disable(unsigned int cpu)
* watchdog_nmi_reconfigure can be implemented to be notified after any
* watchdog configuration change. The arch hardlockup watchdog should
* respond to the following variables:
- * - nmi_watchdog_enabled
+ * - watchdog_enabled
* - watchdog_thresh
* - watchdog_cpumask
* - sysctl_hardlockup_all_cpu_backtrace
@@ -126,10 +129,6 @@ void __weak watchdog_nmi_reconfigure(void) { }
/* Global variables, exported for sysctl */
unsigned int __read_mostly softlockup_panic =
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE;
-int __read_mostly soft_watchdog_enabled;
-
-struct cpumask watchdog_allowed_mask __read_mostly;
-static bool softlockup_threads_initialized __read_mostly;
static u64 __read_mostly sample_period;
@@ -606,14 +605,14 @@ static void proc_watchdog_update(void)
/*
* common function for watchdog, nmi_watchdog and soft_watchdog parameter
*
- * caller | table->data points to | 'which' contains the flag(s)
- * -------------------|-----------------------|-----------------------------
- * proc_watchdog | watchdog_user_enabled | NMI_WATCHDOG_ENABLED or'ed
- * | | with SOFT_WATCHDOG_ENABLED
- * -------------------|-----------------------|-----------------------------
- * proc_nmi_watchdog | nmi_watchdog_enabled | NMI_WATCHDOG_ENABLED
- * -------------------|-----------------------|-----------------------------
- * proc_soft_watchdog | soft_watchdog_enabled | SOFT_WATCHDOG_ENABLED
+ * caller | table->data points to | 'which'
+ * -------------------|----------------------------|--------------------------
+ * proc_watchdog | watchdog_user_enabled | NMI_WATCHDOG_ENABLED |
+ * | | SOFT_WATCHDOG_ENABLED
+ * -------------------|----------------------------|--------------------------
+ * proc_nmi_watchdog | nmi_watchdog_user_enabled | NMI_WATCHDOG_ENABLED
+ * -------------------|----------------------------|--------------------------
+ * proc_soft_watchdog | soft_watchdog_user_enabled | SOFT_WATCHDOG_ENABLED
*/
static int proc_watchdog_common(int which, struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)