From ac62d6208a7977107a47be4eb8566d6e5034b5f5 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 5 Apr 2017 19:21:05 +0200
Subject: dm: support REQ_OP_WRITE_ZEROES

Copy & paste from the REQ_OP_WRITE_SAME code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---
 drivers/md/dm-linear.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers/md/dm-linear.c')

diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 4788b0b..e17fd44 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -59,6 +59,7 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	ti->num_flush_bios = 1;
 	ti->num_discard_bios = 1;
 	ti->num_write_same_bios = 1;
+	ti->num_write_zeroes_bios = 1;
 	ti->private = lc;
 	return 0;
 
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