| From 8c5c147339d2e201108169327b1f99aa6d57d2cd Mon Sep 17 00:00:00 2001 |
| From: Steffen Maier <maier@linux.vnet.ibm.com> |
| Date: Wed, 14 Mar 2018 15:33:06 +0100 |
| Subject: dm mpath: fix passing integrity data |
| |
| From: Steffen Maier <maier@linux.vnet.ibm.com> |
| |
| commit 8c5c147339d2e201108169327b1f99aa6d57d2cd upstream. |
| |
| After v4.12 commit e2460f2a4bc7 ("dm: mark targets that pass integrity |
| data"), dm-multipath, e.g. on DIF+DIX SCSI disk paths, does not support |
| block integrity any more. So add it to the whitelist. |
| |
| This is also a pre-requisite to use block integrity with other dm layer(s) |
| on top of multipath, such as kpartx partitions (dm-linear) or LVM. |
| |
| Also, bump target version to reflect this fix. |
| |
| Fixes: e2460f2a4bc7 ("dm: mark targets that pass integrity data") |
| Cc: <stable@vger.kernel.org> #4.12+ |
| Bisected-by: Fedor Loshakov <loshakov@linux.vnet.ibm.com> |
| Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com> |
| Reviewed-by: Hannes Reinecke <hare@suse.com> |
| Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> |
| Signed-off-by: Mike Snitzer <snitzer@redhat.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| drivers/md/dm-mpath.c | 5 +++-- |
| 1 file changed, 3 insertions(+), 2 deletions(-) |
| |
| --- a/drivers/md/dm-mpath.c |
| +++ b/drivers/md/dm-mpath.c |
| @@ -1941,8 +1941,9 @@ static int multipath_busy(struct dm_targ |
| *---------------------------------------------------------------*/ |
| static struct target_type multipath_target = { |
| .name = "multipath", |
| - .version = {1, 12, 0}, |
| - .features = DM_TARGET_SINGLETON | DM_TARGET_IMMUTABLE, |
| + .version = {1, 13, 0}, |
| + .features = DM_TARGET_SINGLETON | DM_TARGET_IMMUTABLE | |
| + DM_TARGET_PASSES_INTEGRITY, |
| .module = THIS_MODULE, |
| .ctr = multipath_ctr, |
| .dtr = multipath_dtr, |
