diff options
| author | NeilBrown <neilb@suse.de> | 2011-01-31 11:57:42 +1100 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2011-01-31 11:57:42 +1100 |
| commit | de171cb9a52598cc023adceafc6c166112401386 (patch) | |
| tree | 56fc899c45b538dedba0fc139e3213a0f47f9a59 /drivers/md/md.c | |
| parent | 1f0324caefd39985e9fe052fac97da31694db31e (diff) | |
| download | lwn-de171cb9a52598cc023adceafc6c166112401386.tar.gz lwn-de171cb9a52598cc023adceafc6c166112401386.zip | |
md: revert change to raid_disks on failure.
If we try to update_raid_disks and it fails, we should put
'delta_disks' back to zero. This is important because some code,
such as slot_store, assumes that delta_disks has been validated.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index b76cfc89e1b5..e636e404e9a5 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5578,6 +5578,8 @@ static int update_raid_disks(mddev_t *mddev, int raid_disks) mddev->delta_disks = raid_disks - mddev->raid_disks; rv = mddev->pers->check_reshape(mddev); + if (rv < 0) + mddev->delta_disks = 0; return rv; } |