[PATCH v2 3/9] raid5: Don't reinvent the wheel but use existing llist API

From: Byungchul Park
Date: Mon Feb 13 2017 - 02:22:12 EST


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

Signed-off-by: Byungchul Park <byungchul.park@xxxxxxx>
---
drivers/md/raid5.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 36c13e4..22a0326 100644
--- 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);
--
1.9.1