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watchdog/sysctl: Clean up sysctl variable name space

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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>
This commit is contained in:
Thomas Gleixner
2017-09-12 21:37:15 +02:00
committed by Ingo Molnar
parent 51d4052b01
commit 7feeb9cd4f
3 changed files with 36 additions and 37 deletions
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41
kernel/watchdog.c
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@@ -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)