workqueue: use enum value to set array size of pools in gcwq

Commit 3270476a6c0ce322354df8679652f060d66526dc ('workqueue: reimplement
WQ_HIGHPRI using a separate worker_pool') introduce separate worker_pool
for HIGHPRI. Although there is NR_WORKER_POOLS enum value which represent
size of pools, definition of worker_pool in gcwq doesn't use it.
Using it makes code robust and prevent future mistakes.
So change code to use this enum value.

Signed-off-by: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 4fef952..49d8f4a 100644 (file)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -183,7 +183,8 @@ struct global_cwq {
        struct hlist_head       busy_hash[BUSY_WORKER_HASH_SIZE];
                                                /* L: hash of busy workers */
 
-       struct worker_pool      pools[2];       /* normal and highpri pools */
+       struct worker_pool      pools[NR_WORKER_POOLS];
+                                               /* normal and highpri pools */
 
        wait_queue_head_t       rebind_hold;    /* rebind hold wait */
 } ____cacheline_aligned_in_smp;