md: 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>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index a34f58772022..b59cc100320a 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -3177,8 +3177,10 @@ static int raid1_run(struct mddev *mddev)
         if (IS_ERR(conf))
                 return PTR_ERR(conf);
 
-        if (mddev->queue)
+        if (mddev->queue) {
                 blk_queue_max_write_same_sectors(mddev->queue, 0);
+                blk_queue_max_write_zeroes_sectors(mddev->queue, 0);
+        }
 
         rdev_for_each(rdev, mddev) {
                 if (!mddev->gendisk)