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authorThomas Gleixner <tglx@linutronix.de>2017-09-12 21:36:59 +0200
committerIngo Molnar <mingo@kernel.org>2017-09-14 11:41:04 +0200
commit5490125d77a43016b26f629d4b485e2c62172551 (patch)
tree8ce389c828dcedfe5a07705dcb84653980943b26 /include
parentparisc, watchdog/core: Use lockup_detector_stop() (diff)
downloadlinux-5490125d77a43016b26f629d4b485e2c62172551.tar.xz
linux-5490125d77a43016b26f629d4b485e2c62172551.zip
watchdog/core: Remove broken suspend/resume interfaces
This interface has several issues: - It's causing recursive locking of the hotplug lock. - It's complete overkill to teardown all threads and then recreate them The same can be achieved with the simple hardlockup_detector_perf_stop / restart() interfaces. The abuse from the busy looping poweroff() loop of PARISC has been solved as well. Remove the cruft. 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/20170912194146.487537732@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/nmi.h12
1 files changed, 0 insertions, 12 deletions
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index 85bb268be39c..7eefe7abf44b 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -164,7 +164,6 @@ extern int watchdog_thresh;
extern unsigned long watchdog_enabled;
extern struct cpumask watchdog_cpumask;
extern unsigned long *watchdog_cpumask_bits;
-extern int __read_mostly watchdog_suspended;
#ifdef CONFIG_SMP
extern int sysctl_softlockup_all_cpu_backtrace;
extern int sysctl_hardlockup_all_cpu_backtrace;
@@ -192,17 +191,6 @@ extern int proc_watchdog_thresh(struct ctl_table *, int ,
void __user *, size_t *, loff_t *);
extern int proc_watchdog_cpumask(struct ctl_table *, int,
void __user *, size_t *, loff_t *);
-extern int lockup_detector_suspend(void);
-extern void lockup_detector_resume(void);
-#else
-static inline int lockup_detector_suspend(void)
-{
- return 0;
-}
-
-static inline void lockup_detector_resume(void)
-{
-}
#endif
#ifdef CONFIG_HAVE_ACPI_APEI_NMI