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Merge branch 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

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Pull workqueue updates from Tejun Heo:
 "Three trivial workqueue changes"

* 'for-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: Fix comment for work_on_cpu()
  sched/core: Get rid of 'cpu' argument in wq_worker_sleeping()
  workqueue: Replace usage of init_name with dev_set_name()
This commit is contained in:
Linus Torvalds 2016-03-18 20:05:39 -07:00
commit ef504fa591
3 changed files with 6 additions and 7 deletions
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2
kernel/sched/core.c
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@ -3174,7 +3174,7 @@ static void __sched notrace __schedule(bool preempt)
if (prev->flags & PF_WQ_WORKER) { if (prev->flags & PF_WQ_WORKER) {
struct task_struct *to_wakeup; struct task_struct *to_wakeup;
to_wakeup = wq_worker_sleeping(prev, cpu); to_wakeup = wq_worker_sleeping(prev);
if (to_wakeup) if (to_wakeup)
try_to_wake_up_local(to_wakeup); try_to_wake_up_local(to_wakeup);
} }

9
kernel/workqueue.c
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@ -857,7 +857,6 @@ void wq_worker_waking_up(struct task_struct *task, int cpu)
/** /**
* wq_worker_sleeping - a worker is going to sleep * wq_worker_sleeping - a worker is going to sleep
* @task: task going to sleep * @task: task going to sleep
* @cpu: CPU in question, must be the current CPU number
* *
* This function is called during schedule() when a busy worker is * This function is called during schedule() when a busy worker is
* going to sleep. Worker on the same cpu can be woken up by * going to sleep. Worker on the same cpu can be woken up by
@ -869,7 +868,7 @@ void wq_worker_waking_up(struct task_struct *task, int cpu)
* Return: * Return:
* Worker task on @cpu to wake up, %NULL if none. * Worker task on @cpu to wake up, %NULL if none.
*/ */
struct task_struct *wq_worker_sleeping(struct task_struct *task, int cpu) struct task_struct *wq_worker_sleeping(struct task_struct *task)
{ {
struct worker *worker = kthread_data(task), *to_wakeup = NULL; struct worker *worker = kthread_data(task), *to_wakeup = NULL;
struct worker_pool *pool; struct worker_pool *pool;
@ -885,7 +884,7 @@ struct task_struct *wq_worker_sleeping(struct task_struct *task, int cpu)
pool = worker->pool; pool = worker->pool;
/* this can only happen on the local cpu */ /* this can only happen on the local cpu */
if (WARN_ON_ONCE(cpu != raw_smp_processor_id() || pool->cpu != cpu)) if (WARN_ON_ONCE(pool->cpu != raw_smp_processor_id()))
return NULL; return NULL;
/* /*
@ -4695,7 +4694,7 @@ static void work_for_cpu_fn(struct work_struct *work)
} }
/** /**
* work_on_cpu - run a function in user context on a particular cpu * work_on_cpu - run a function in thread context on a particular cpu
* @cpu: the cpu to run on * @cpu: the cpu to run on
* @fn: the function to run * @fn: the function to run
* @arg: the function arg * @arg: the function arg
@ -5221,8 +5220,8 @@ int workqueue_sysfs_register(struct workqueue_struct *wq)
wq_dev->wq = wq; wq_dev->wq = wq;
wq_dev->dev.bus = &wq_subsys; wq_dev->dev.bus = &wq_subsys;
wq_dev->dev.init_name = wq->name;
wq_dev->dev.release = wq_device_release; wq_dev->dev.release = wq_device_release;
dev_set_name(&wq_dev->dev, "%s", wq->name);
/* /*
* unbound_attrs are created separately. Suppress uevent until * unbound_attrs are created separately. Suppress uevent until

2
kernel/workqueue_internal.h
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@ -69,6 +69,6 @@ static inline struct worker *current_wq_worker(void)
* sched/core.c and workqueue.c. * sched/core.c and workqueue.c.
*/ */
void wq_worker_waking_up(struct task_struct *task, int cpu); void wq_worker_waking_up(struct task_struct *task, int cpu);
struct task_struct *wq_worker_sleeping(struct task_struct *task, int cpu); struct task_struct *wq_worker_sleeping(struct task_struct *task);
#endif /* _KERNEL_WORKQUEUE_INTERNAL_H */ #endif /* _KERNEL_WORKQUEUE_INTERNAL_H */