diff options
Diffstat (limited to 'drivers/md/raid5-ppl.c')
| -rw-r--r-- | drivers/md/raid5-ppl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c index 4af420f4d8c0..27bad3e2d7ce 100644 --- a/drivers/md/raid5-ppl.c +++ b/drivers/md/raid5-ppl.c @@ -1187,6 +1187,10 @@ int ppl_init_log(struct r5conf *conf) */ mddev->recovery_cp = MaxSector; set_bit(MD_SB_CHANGE_CLEAN, &mddev->sb_flags); + } else if (mddev->pers && ppl_conf->mismatch_count > 0) { + /* no mismatch allowed when enabling PPL for a running array */ + ret = -EINVAL; + goto err; } conf->log_private = ppl_conf; |