[PATCH 01/21] workqueue: add missing POOL_FREEZING

[Lai Jiangshan <laijs@cn.fujitsu.com>]

When we create a new pool via get_unbound_pool() when freezing.
the pool->flags' POOL_FREEZING is incorrect.

Fix it by adding POOL_FREEZING if workqueue_freezing.
(wq_mutex is already held for accessing workqueue_freezing.)

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
---
 kernel/workqueue.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index e38d035..40f4017 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3503,6 +3503,9 @@ static struct worker_pool *get_unbound_pool(const struct workqueue_attrs *attrs)
 	if (!pool || init_worker_pool(pool) < 0)
 		goto fail;
 
+	if (workqueue_freezing)
+		pool->flags |= POOL_FREEZING;
+
 	lockdep_set_subclass(&pool->lock, 1);	/* see put_pwq() */
 	copy_workqueue_attrs(pool->attrs, attrs);
 
-- 
1.7.7.6