2 files changed, 12 insertions, 0 deletions

diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 45754bb6a799..9de000131a8a 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -239,6 +239,11 @@ static void vm_dp_init(struct dpages *dp, void *data)
         dp->context_ptr = data;
 }
 
+static void dm_bio_destructor(struct bio *bio)
+{
+        bio_free(bio, _bios);
+}
+
 /*-----------------------------------------------------------------
  * IO routines that accept a list of pages.
  *---------------------------------------------------------------*/
@@ -263,6 +268,7 @@ static void do_region(int rw, unsigned int region, struct io_region *where,
                 bio->bi_bdev = where->bdev;
                 bio->bi_end_io = endio;
                 bio->bi_private = io;
+                bio->bi_destructor = dm_bio_destructor;
                 bio_set_region(bio, region);
 
                 /*
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index d487d9deb98e..930b9fc27953 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -399,6 +399,11 @@ struct clone_info {
         unsigned short idx;
 };
 
+static void dm_bio_destructor(struct bio *bio)
+{
+        bio_free(bio, dm_set);
+}
+
 /*
  * Creates a little bio that is just does part of a bvec.
  */
@@ -410,6 +415,7 @@ static struct bio *split_bvec(struct bio *bio, sector_t sector,
         struct bio_vec *bv = bio->bi_io_vec + idx;
 
         clone = bio_alloc_bioset(GFP_NOIO, 1, dm_set);
+        clone->bi_destructor = dm_bio_destructor;
         *clone->bi_io_vec = *bv;
 
         clone->bi_sector = sector;