dm: mark split bio as cloned

When a bio gets split, mark its fragments with the BIO_CLONED flag. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
mariux64 · Oct 21, 2008 · f3e1d26 · f3e1d26
1 parent 0a4a104
commit f3e1d26
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
@@ -669,6 +669,7 @@ static struct bio *split_bvec(struct bio *bio, sector_t sector,
 	clone->bi_size = to_bytes(len);
 	clone->bi_io_vec->bv_offset = offset;
 	clone->bi_io_vec->bv_len = clone->bi_size;
+	clone->bi_flags |= 1 << BIO_CLONED;
 
 	return clone;
 }