diff options
| author | NeilBrown <neilb@suse.de> | 2014-08-06 16:34:27 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2014-08-06 16:34:27 +1000 |
| commit | 1bdb20e16166240a4ca3b861c48defefaf218874 (patch) | |
| tree | bd51b756f9336fa0fc0ed52867e51a489ef0609f | |
| parent | af5628f05db62c656f994b2346897939b5110d6a (diff) | |
md: check for bitmap compatability when changing raid levels.
If an array has a bitmap, then it cannot be converted to
a level which does not support bitmaps.
Reported-by: Xiao Ni <xni@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
| -rw-r--r-- | drivers/md/md.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 1379b1a3b9ff..3bd13b276e45 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3500,6 +3500,12 @@ level_store(struct mddev *mddev, const char *buf, size_t len) mdname(mddev), clevel); return -EINVAL; } + if (mddev->bitmap && !pers->quiesce) { + module_put(pers->owner); + printk(KERN_WARNING "md: %s: %s does not support a bitmap\n", + mdname(mddev), clevel); + return -EINVAL; + } rdev_for_each(rdev, mddev) rdev->new_raid_disk = rdev->raid_disk; |