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Subject[PATCH 11/15] dm stripe: support copy
Support the copy operation for the stripe target.

In stripe_merge, we verify that the underlying device supports copy. If it
doesn't, we can fail fast without any bio being contructed.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
drivers/md/dm-stripe.c | 1 +
1 file changed, 1 insertion(+)

Index: linux-4.3-rc1/drivers/md/dm-stripe.c
===================================================================
--- linux-4.3-rc1.orig/drivers/md/dm-stripe.c 2015-09-14 16:06:36.000000000 +0200
+++ linux-4.3-rc1/drivers/md/dm-stripe.c 2015-09-14 16:23:01.000000000 +0200
@@ -169,6 +169,7 @@ static int stripe_ctr(struct dm_target *
ti->num_flush_bios = stripes;
ti->num_discard_bios = stripes;
ti->num_write_same_bios = stripes;
+ ti->copy_supported = 1;

sc->chunk_size = chunk_size;
if (chunk_size & (chunk_size - 1))

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