dm mpath: enable WRITE SAME support

Enable WRITE SAME support in dm multipath. As far as multipath is concerned it is just another write request. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Tested-by: Bharata B Rao <bharata.rao@gmail.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
git-mirror · May 10, 2013 · 042bcef · 042bcef
1 parent dc019b2
commit 042bcef
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
@@ -907,6 +907,7 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc,
 
 	ti->num_flush_bios = 1;
 	ti->num_discard_bios = 1;
+	ti->num_write_same_bios = 1;
 
 	return 0;