diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/raid5.c | 5 |
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; |