diff options
| author | NeilBrown <neilb@suse.de> | 2014-08-08 15:40:24 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2014-08-08 15:43:20 +1000 |
| commit | d66b1b395a59027a1c054e1fc57d582cb4194491 (patch) | |
| tree | 7baa7abbfe0b1671c421613c97c41f8e37a8d322 | |
| parent | a8461a61c241a25afedbe493c13d98a6e0cf4246 (diff) | |
md: don't allow bitmap file to be added to raid0/linear.
An array can only accept a bitmap if it will call bitmap_daemon_work
periodically, which means it needs a thread running.
If there is no thread, don't allow a bitmap to be added.
Signed-off-by: NeilBrown <neilb@suse.de>
| -rw-r--r-- | drivers/md/md.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index eb8c93dff7c6..1294238610df 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5961,7 +5961,7 @@ static int set_bitmap_file(struct mddev *mddev, int fd) int err = 0; if (mddev->pers) { - if (!mddev->pers->quiesce) + if (!mddev->pers->quiesce || !mddev->thread) return -EBUSY; if (mddev->recovery || mddev->sync_thread) return -EBUSY; @@ -6263,7 +6263,7 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info) rv = update_raid_disks(mddev, info->raid_disks); if ((state ^ info->state) & (1<<MD_SB_BITMAP_PRESENT)) { - if (mddev->pers->quiesce == NULL) + if (mddev->pers->quiesce == NULL || mddev->thread == NULL) return -EINVAL; if (mddev->recovery || mddev->sync_thread) return -EBUSY; |