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workqueue: remove the comment about the old manager_arb mutex 

The manager_arb mutex doesn't exist any more.

Signed-off-by: Lai Jiangshan <jiangshanlai@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
hifive-unleashed-5.1
Lai Jiangshan 2018-03-20 17:24:32 +08:00 committed by Tejun Heo
parent 5826cc8f5a
commit f75da8a8a9
1 changed files with 0 additions and 1 deletions
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kernel/workqueue.c
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@ -165,7 +165,6 @@ struct worker_pool {
DECLARE_HASHTABLE(busy_hash, BUSY_WORKER_HASH_ORDER);
/* L: hash of busy workers */
/* see manage_workers() for details on the two manager mutexes */
struct worker *manager; /* L: purely informational */
struct mutex attach_mutex; /* attach/detach exclusion */
struct list_head workers; /* A: attached workers */