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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-03-20 04:02:01 +0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-03-20 04:02:01 +0400 |
| commit | 10ce3cc919f50c2043b41ca968b43c26a3672600 (patch) | |
| tree | ea409366a5208aced495bc0516a08b81fd43222e /drivers/md/dm-mpath.c | |
| parent | 24e3e5ae1e4c2a3a32f5b1f96b4e3fd721806acd (diff) | |
| parent | 5c6a7a62c130afef3d61c1dee153012231ff5cd9 (diff) | |
| download | linux-10ce3cc919f50c2043b41ca968b43c26a3672600.tar.xz | |
Merge branch 'next' 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); } |