1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index c1e8607d8340..348a857ab0ff 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -416,6 +416,11 @@ static void release_stripe(struct stripe_head *sh)
         int hash;
         bool wakeup;
 
+        /* Avoid release_list until the last reference.
+         */
+        if (atomic_add_unless(&sh->count, -1, 1))
+                return;
+
         if (unlikely(!conf->mddev->thread) ||
                 test_and_set_bit(STRIPE_ON_RELEASE_LIST, &sh->state))
                 goto slow_path;