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author | Alex Shi <alex.shi@linaro.org> | 2018-03-19 12:01:32 +0800 |
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committer | Alex Shi <alex.shi@linaro.org> | 2018-03-19 12:01:32 +0800 |
commit | 9ad0ea90a166b728745bdbef04f573a4eed811fd (patch) | |
tree | bd4bc901c5588576603f3ec15169bf4c07359a3a /kernel | |
parent | c87aba7d0caf207f717c52ba9271d6185576d9aa (diff) | |
parent | 06eb38abaf83b589a5e66ca4749eee16fa0d9854 (diff) |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/workqueue.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 85555eb4d3cb..8df77ed6aa99 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -4048,6 +4048,22 @@ void workqueue_set_max_active(struct workqueue_struct *wq, int max_active) EXPORT_SYMBOL_GPL(workqueue_set_max_active); /** + * current_work - retrieve %current task's work struct + * + * Determine if %current task is a workqueue worker and what it's working on. + * Useful to find out the context that the %current task is running in. + * + * Return: work struct if %current task is a workqueue worker, %NULL otherwise. + */ +struct work_struct *current_work(void) +{ + struct worker *worker = current_wq_worker(); + + return worker ? worker->current_work : NULL; +} +EXPORT_SYMBOL(current_work); + +/** * current_is_workqueue_rescuer - is %current workqueue rescuer? * * Determine whether %current is a workqueue rescuer. Can be used from |