diff options
| author | Takashi Iwai <tiwai@suse.de> | 2012-01-31 15:13:14 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-01-31 15:13:14 +0100 |
| commit | ea51e5040e24eefe44d70bc654a237ca1f0225b0 (patch) | |
| tree | df2e5922dcdfafae62a10d8cd97f98121064fc23 /drivers/md/dm-mpath.c | |
| parent | 3422a47041b8cb8f14ac1e3926bcf711121df6dc (diff) | |
| parent | 8dbd52daee38adaae4d5a674bcca837e694a4f4c (diff) | |
Merge branch 'fix/asoc' into for-linus
Diffstat (limited to 'drivers/md/dm-mpath.c')
| -rw-r--r-- | drivers/md/dm-mpath.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index 5e0090ef4182..801d92d237cf 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -1520,6 +1520,12 @@ static int multipath_ioctl(struct dm_target *ti, unsigned int cmd, spin_unlock_irqrestore(&m->lock, flags); + /* + * Only pass ioctls through if the device sizes match exactly. + */ + if (!r && ti->len != i_size_read(bdev->bd_inode) >> SECTOR_SHIFT) + r = scsi_verify_blk_ioctl(NULL, cmd); + return r ? : __blkdev_driver_ioctl(bdev, mode, cmd, arg); } |