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workqueue: separate out init_worker_pool() from init_workqueues() 

This will be used to implement unbound pools with custom attributes.

This patch doesn't introduce any functional changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Lai Jiangshan <laijs@cn.fujitsu.com>
This commit is contained in:
Tejun Heo 2013-03-12 11:30:00 -07:00
parent 34a06bd6b6
commit 4e1a1f9a05
1 changed files with 21 additions and 16 deletions
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37
kernel/workqueue.c
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@ -3123,6 +3123,26 @@ int keventd_up(void)
return system_wq != NULL;
}
static void init_worker_pool(struct worker_pool *pool)
{
spin_lock_init(&pool->lock);
pool->flags |= POOL_DISASSOCIATED;
INIT_LIST_HEAD(&pool->worklist);
INIT_LIST_HEAD(&pool->idle_list);
hash_init(pool->busy_hash);
init_timer_deferrable(&pool->idle_timer);
pool->idle_timer.function = idle_worker_timeout;
pool->idle_timer.data = (unsigned long)pool;
setup_timer(&pool->mayday_timer, pool_mayday_timeout,
(unsigned long)pool);
mutex_init(&pool->manager_arb);
mutex_init(&pool->assoc_mutex);
ida_init(&pool->worker_ida);
}
static int alloc_and_link_pwqs(struct workqueue_struct *wq)
{
bool highpri = wq->flags & WQ_HIGHPRI;
@ -3790,23 +3810,8 @@ static int __init init_workqueues(void)
struct worker_pool *pool;
for_each_std_worker_pool(pool, cpu) {
spin_lock_init(&pool->lock);
init_worker_pool(pool);
pool->cpu = cpu;
pool->flags |= POOL_DISASSOCIATED;
INIT_LIST_HEAD(&pool->worklist);
INIT_LIST_HEAD(&pool->idle_list);
hash_init(pool->busy_hash);
init_timer_deferrable(&pool->idle_timer);
pool->idle_timer.function = idle_worker_timeout;
pool->idle_timer.data = (unsigned long)pool;
setup_timer(&pool->mayday_timer, pool_mayday_timeout,
(unsigned long)pool);
mutex_init(&pool->manager_arb);
mutex_init(&pool->assoc_mutex);
ida_init(&pool->worker_ida);
/* alloc pool ID */
BUG_ON(worker_pool_assign_id(pool));