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>

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index eeebfa65b0eff054495e732650005d260af8bd04..636c6d702b933084d74e1070bed4473dc21d8aca 100644 (file)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -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 */