diff options
| -rw-r--r-- | drivers/md/raid5.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 7e2bbcfef325..f8bc74e16811 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -8525,6 +8525,7 @@ static int raid5_start_reshape(struct mddev *mddev) struct r5conf *conf = mddev->private; struct md_rdev *rdev; int spares = 0; + int i; unsigned long flags; if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery)) @@ -8536,6 +8537,13 @@ static int raid5_start_reshape(struct mddev *mddev) if (has_failed(conf)) return -EINVAL; + /* raid5 can't handle concurrent reshape and recovery */ + if (mddev->recovery_cp < MaxSector) + return -EBUSY; + for (i = 0; i < conf->raid_disks; i++) + if (rdev_mdlock_deref(mddev, conf->disks[i].replacement)) + return -EBUSY; + rdev_for_each(rdev, mddev) { if (!test_bit(In_sync, &rdev->flags) && !test_bit(Faulty, &rdev->flags)) |