diff options
| author | NeilBrown | 2008-02-06 10:39:55 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2008-02-06 19:41:19 +0100 |
| commit | a17184a911195c274104df98a79bec10f57e735d (patch) | |
| tree | 786eca010cb2c4495702f983420258c4ef8efbe5 /drivers/md/md.c | |
| parent | md: lock address when changing attributes of component devices (diff) | |
| download | kernel-qcow2-linux-a17184a911195c274104df98a79bec10f57e735d.tar.gz kernel-qcow2-linux-a17184a911195c274104df98a79bec10f57e735d.tar.xz kernel-qcow2-linux-a17184a911195c274104df98a79bec10f57e735d.zip | |
md: allow an md array to appear with 0 drives if it has external metadata
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 39757566f39b..08e0f8d672c3 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -4647,9 +4647,10 @@ static int md_ioctl(struct inode *inode, struct file *file, */ /* if we are not initialised yet, only ADD_NEW_DISK, STOP_ARRAY, * RUN_ARRAY, and GET_ and SET_BITMAP_FILE are allowed */ - if (!mddev->raid_disks && cmd != ADD_NEW_DISK && cmd != STOP_ARRAY - && cmd != RUN_ARRAY && cmd != SET_BITMAP_FILE - && cmd != GET_BITMAP_FILE) { + if ((!mddev->raid_disks && !mddev->external) + && cmd != ADD_NEW_DISK && cmd != STOP_ARRAY + && cmd != RUN_ARRAY && cmd != SET_BITMAP_FILE + && cmd != GET_BITMAP_FILE) { err = -ENODEV; goto abort_unlock; } |