md/raid5: Don't reinvent the wheel but use existing llist API

Although llist provides proper APIs, they are not used. Make them used.

Signed-off-by: Byungchul Park <byungchul.park@lge.com>
Signed-off-by: Shaohua Li <shli@fb.com>

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index b193316..7b7722b 100644 (file)
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -353,17 +353,15 @@ static void release_inactive_stripe_list(struct r5conf *conf,
 static int release_stripe_list(struct r5conf *conf,
                               struct list_head *temp_inactive_list)
 {
-       struct stripe_head *sh;
+       struct stripe_head *sh, *t;
        int count = 0;
        struct llist_node *head;
 
        head = llist_del_all(&conf->released_stripes);
        head = llist_reverse_order(head);
-       while (head) {
+       llist_for_each_entry_safe(sh, t, head, release_list) {
                int hash;
 
-               sh = llist_entry(head, struct stripe_head, release_list);
-               head = llist_next(head);
                /* sh could be readded after STRIPE_ON_RELEASE_LIST is cleard */
                smp_mb();
                clear_bit(STRIPE_ON_RELEASE_LIST, &sh->state);