2 files changed, 5 insertions, 2 deletions

diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index d039de8322f0..ea16984c0f08 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1214,7 +1214,7 @@ static int mirror_end_io(struct dm_target *ti, struct bio *bio,
          * We need to dec pending if this was a write.
          */
         if (rw == WRITE) {
-                if (!(bio->bi_rw & REQ_FLUSH))
+                if (!(bio->bi_rw & (REQ_FLUSH | REQ_DISCARD)))
                         dm_rh_dec(ms->rh, map_context->ll);
                 return error;
         }
diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c
index 7771ed212182..69732e03eb34 100644
--- a/drivers/md/dm-region-hash.c
+++ b/drivers/md/dm-region-hash.c
@@ -404,6 +404,9 @@ void dm_rh_mark_nosync(struct dm_region_hash *rh, struct bio *bio)
                 return;
         }
 
+        if (bio->bi_rw & REQ_DISCARD)
+                return;
+
         /* We must inform the log that the sync count has changed. */
         log->type->set_region_sync(log, region, 0);
 
@@ -524,7 +527,7 @@ void dm_rh_inc_pending(struct dm_region_hash *rh, struct bio_list *bios)
         struct bio *bio;
 
         for (bio = bios->head; bio; bio = bio->bi_next) {
-                if (bio->bi_rw & REQ_FLUSH)
+                if (bio->bi_rw & (REQ_FLUSH | REQ_DISCARD))
                         continue;
                 rh_inc(rh, dm_rh_bio_to_region(rh, bio));
         }