diff options
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 8fda38d23e3..34846856dbc 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3448,6 +3448,8 @@ level_store(struct mddev *mddev, const char *buf, size_t len) mddev->level = LEVEL_NONE; return rv; } + if (mddev->ro) + return -EROFS; /* request to change the personality. Need to ensure: * - array is not engaged in resync/recovery/reshape @@ -3634,6 +3636,8 @@ layout_store(struct mddev *mddev, const char *buf, size_t len) int err; if (mddev->pers->check_reshape == NULL) return -EBUSY; + if (mddev->ro) + return -EROFS; mddev->new_layout = n; err = mddev->pers->check_reshape(mddev); if (err) { @@ -3723,6 +3727,8 @@ chunk_size_store(struct mddev *mddev, const char *buf, size_t len) int err; if (mddev->pers->check_reshape == NULL) return -EBUSY; + if (mddev->ro) + return -EROFS; mddev->new_chunk_sectors = n >> 9; err = mddev->pers->check_reshape(mddev); if (err) { @@ -6135,6 +6141,8 @@ static int update_size(struct mddev *mddev, sector_t num_sectors) */ if (mddev->sync_thread) return -EBUSY; + if (mddev->ro) + return -EROFS; rdev_for_each(rdev, mddev) { sector_t avail = rdev->sectors; @@ -6157,6 +6165,8 @@ static int update_raid_disks(struct mddev *mddev, int raid_disks) /* change the number of raid disks */ if (mddev->pers->check_reshape == NULL) return -EINVAL; + if (mddev->ro) + return -EROFS; if (raid_disks <= 0 || (mddev->max_disks && raid_disks >= mddev->max_disks)) return -EINVAL; @@ -7381,8 +7391,10 @@ void md_do_sync(struct md_thread *thread) /* just incase thread restarts... */ if (test_bit(MD_RECOVERY_DONE, &mddev->recovery)) return; - if (mddev->ro) /* never try to sync a read-only array */ + if (mddev->ro) {/* never try to sync a read-only array */ + set_bit(MD_RECOVERY_INTR, &mddev->recovery); return; + } if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) { if (test_bit(MD_RECOVERY_CHECK, &mddev->recovery)) { @@ -7824,6 +7836,7 @@ void md_check_recovery(struct mddev *mddev) /* There is no thread, but we need to call * ->spare_active and clear saved_raid_disk */ + set_bit(MD_RECOVERY_INTR, &mddev->recovery); md_reap_sync_thread(mddev); clear_bit(MD_RECOVERY_NEEDED, &mddev->recovery); goto unlock; @@ -8330,7 +8343,7 @@ static int md_clear_badblocks(struct badblocks *bb, sector_t s, int sectors) if (a < s) { /* we need to split this range */ if (bb->count >= MD_MAX_BADBLOCKS) { - rv = 0; + rv = -ENOSPC; goto out; } memmove(p+lo+1, p+lo, (bb->count - lo) * 8); @@ -8516,7 +8529,8 @@ static int md_notify_reboot(struct notifier_block *this, if (mddev_trylock(mddev)) { if (mddev->pers) __md_stop_writes(mddev); - mddev->safemode = 2; + if (mddev->persistent) + mddev->safemode = 2; mddev_unlock(mddev); } need_delay = 1; |