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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-12 05:53:13 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-12 05:53:13 +0300 |
| commit | 0f8c7901039f8b1366ae364462743c8f4125822e (patch) | |
| tree | 27cbd63383fdbce3ceca1ff2d248b3add78aa1ef /include/linux | |
| parent | 3d116a66ed9df0271b8d267093b3bfde2be19b3a (diff) | |
| parent | 6201171e3b2c02992e62448636631a0dfe4e9d20 (diff) | |
| download | linux-0f8c7901039f8b1366ae364462743c8f4125822e.tar.xz | |
Merge branch 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue update from Tejun Heo:
"Workqueue changes for v4.5. One cleanup patch and three to improve
the debuggability.
Workqueue now has a stall detector which dumps workqueue state if any
worker pool hasn't made forward progress over a certain amount of time
(30s by default) and also triggers a warning if a workqueue which can
be used in memory reclaim path tries to wait on something which can't
be.
These should make workqueue hangs a lot easier to debug."
* 'for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: simplify the apply_workqueue_attrs_locked()
workqueue: implement lockup detector
watchdog: introduce touch_softlockup_watchdog_sched()
workqueue: warn if memory reclaim tries to flush !WQ_MEM_RECLAIM workqueue
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/sched.h | 4 | ||||
| -rw-r--r-- | include/linux/workqueue.h | 6 |
2 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 0c0e78102850..4bae8ab3b893 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -377,6 +377,7 @@ extern void scheduler_tick(void); extern void sched_show_task(struct task_struct *p); #ifdef CONFIG_LOCKUP_DETECTOR +extern void touch_softlockup_watchdog_sched(void); extern void touch_softlockup_watchdog(void); extern void touch_softlockup_watchdog_sync(void); extern void touch_all_softlockup_watchdogs(void); @@ -387,6 +388,9 @@ extern unsigned int softlockup_panic; extern unsigned int hardlockup_panic; void lockup_detector_init(void); #else +static inline void touch_softlockup_watchdog_sched(void) +{ +} static inline void touch_softlockup_watchdog(void) { } diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 0197358f1e81..0e32bc71245e 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -618,4 +618,10 @@ static inline int workqueue_sysfs_register(struct workqueue_struct *wq) { return 0; } #endif /* CONFIG_SYSFS */ +#ifdef CONFIG_WQ_WATCHDOG +void wq_watchdog_touch(int cpu); +#else /* CONFIG_WQ_WATCHDOG */ +static inline void wq_watchdog_touch(int cpu) { } +#endif /* CONFIG_WQ_WATCHDOG */ + #endif |