diff options
| -rw-r--r-- | drivers/md/raid5.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index ad9e15a3ef51..e56c7e0627fa 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3210,15 +3210,16 @@ handle_failed_sync(struct r5conf *conf, struct stripe_head *sh, /* During recovery devices cannot be removed, so * locking and refcounting of rdevs is not needed */ + rcu_read_lock(); for (i = 0; i < conf->raid_disks; i++) { - struct md_rdev *rdev = conf->disks[i].rdev; + struct md_rdev *rdev = rcu_dereference(conf->disks[i].rdev); if (rdev && !test_bit(Faulty, &rdev->flags) && !test_bit(In_sync, &rdev->flags) && !rdev_set_badblocks(rdev, sh->sector, STRIPE_SECTORS, 0)) abort = 1; - rdev = conf->disks[i].replacement; + rdev = rcu_dereference(conf->disks[i].replacement); if (rdev && !test_bit(Faulty, &rdev->flags) && !test_bit(In_sync, &rdev->flags) @@ -3226,6 +3227,7 @@ handle_failed_sync(struct r5conf *conf, struct stripe_head *sh, STRIPE_SECTORS, 0)) abort = 1; } + rcu_read_unlock(); if (abort) conf->recovery_disabled = conf->mddev->recovery_disabled; |