Merge tag 'dm-4.5-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fix from Mike Snitzer:
"Fix a 112 byte leak for each IO request that is requeued while DM
multipath is handling faults due to path failures.
This leak does not happen if blk-mq DM multipath is used. It only
occurs if .request_fn DM multipath is stacked ontop of blk-mq paths
(e.g. scsi-mq devices)"
* tag 'dm-4.5-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix dm_rq_target_io leak on faults with .request_fn DM w/ blk-mq paths
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 5df4048..dd83492 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1191,6 +1191,8 @@
if (clone)
free_rq_clone(clone);
+ else if (!tio->md->queue->mq_ops)
+ free_rq_tio(tio);
}
/*