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workqueue: rename first_worker() to first_idle_worker()

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first_worker() actually returns the first idle workers, the name
first_idle_worker() which is self-commnet will be better.

All the callers of first_worker() expect it returns an idle worker,
the name first_idle_worker() with "idle" notation makes reviewers happier.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Lai Jiangshan 2014-05-22 16:44:07 +08:00 committed by Tejun Heo
parent cafebac153
commit 1037de36ed
1 changed files with 5 additions and 5 deletions
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10
kernel/workqueue.c
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@ -773,8 +773,8 @@ static bool too_many_workers(struct worker_pool *pool)
* Wake up functions.
*/
/* Return the first worker. Safe with preemption disabled */
static struct worker *first_worker(struct worker_pool *pool)
/* Return the first idle worker. Safe with preemption disabled */
static struct worker *first_idle_worker(struct worker_pool *pool)
{
if (unlikely(list_empty(&pool->idle_list)))
return NULL;
@ -793,7 +793,7 @@ static struct worker *first_worker(struct worker_pool *pool)
*/
static void wake_up_worker(struct worker_pool *pool)
{
struct worker *worker = first_worker(pool);
struct worker *worker = first_idle_worker(pool);
if (likely(worker))
wake_up_process(worker->task);
@ -867,7 +867,7 @@ struct task_struct *wq_worker_sleeping(struct task_struct *task, int cpu)
*/
if (atomic_dec_and_test(&pool->nr_running) &&
!list_empty(&pool->worklist))
to_wakeup = first_worker(pool);
to_wakeup = first_idle_worker(pool);
return to_wakeup ? to_wakeup->task : NULL;
}
@ -3475,7 +3475,7 @@ static void put_unbound_pool(struct worker_pool *pool)
mutex_lock(&pool->manager_arb);
spin_lock_irq(&pool->lock);
while ((worker = first_worker(pool)))
while ((worker = first_idle_worker(pool)))
destroy_worker(worker);
WARN_ON(pool->nr_workers || pool->nr_idle);
spin_unlock_irq(&pool->lock);