[dm-devel] [PATCH v2 11/12] dm mpath: enable discard support

[Mike Snitzer]

Enable discard support in the DM multipath target.

This discard support depends on a few discard-specific fixes to the
block layer's request stacking driver methods.

Signed-off-by: Mike Snitzer <snitzer at redhat.com>
Cc: Kiyoshi Ueda <k-ueda at ct.jp.nec.com>
---
 drivers/md/dm-mpath.c |    1 +
 1 file changed, 1 insertion(+)

Index: linux-2.6-block/drivers/md/dm-mpath.c
===================================================================
--- linux-2.6-block.orig/drivers/md/dm-mpath.c
+++ linux-2.6-block/drivers/md/dm-mpath.c
@@ -893,6 +893,7 @@ static int multipath_ctr(struct dm_targe
 	}
 
 	ti->num_flush_requests = 1;
+	ti->num_discard_requests = 1;
 
 	return 0;