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path: root/drivers/block/drbd/drbd_req.c
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Diffstat (limited to 'drivers/block/drbd/drbd_req.c')
-rw-r--r--drivers/block/drbd/drbd_req.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 652114ae1a8a..b5730e17b455 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -59,6 +59,7 @@ static struct drbd_request *drbd_req_new(struct drbd_device *device, struct bio
drbd_req_make_private_bio(req, bio_src);
req->rq_state = (bio_data_dir(bio_src) == WRITE ? RQ_WRITE : 0)
| (bio_op(bio_src) == REQ_OP_WRITE_SAME ? RQ_WSAME : 0)
+ | (bio_op(bio_src) == REQ_OP_WRITE_ZEROES ? RQ_UNMAP : 0)
| (bio_op(bio_src) == REQ_OP_DISCARD ? RQ_UNMAP : 0);
req->device = device;
req->master_bio = bio_src;
@@ -1148,10 +1149,10 @@ static int drbd_process_write_request(struct drbd_request *req)
static void drbd_process_discard_req(struct drbd_request *req)
{
- int err = drbd_issue_discard_or_zero_out(req->device,
- req->i.sector, req->i.size >> 9, true);
+ struct block_device *bdev = req->device->ldev->backing_bdev;
- if (err)
+ if (blkdev_issue_zeroout(bdev, req->i.sector, req->i.size >> 9,
+ GFP_NOIO, 0))
req->private_bio->bi_error = -EIO;
bio_endio(req->private_bio);
}
@@ -1180,7 +1181,8 @@ drbd_submit_req_private_bio(struct drbd_request *req)
if (get_ldev(device)) {
if (drbd_insert_fault(device, type))
bio_io_error(bio);
- else if (bio_op(bio) == REQ_OP_DISCARD)
+ else if (bio_op(bio) == REQ_OP_WRITE_ZEROES ||
+ bio_op(bio) == REQ_OP_DISCARD)
drbd_process_discard_req(req);
else
generic_make_request(bio);
@@ -1234,7 +1236,8 @@ drbd_request_prepare(struct drbd_device *device, struct bio *bio, unsigned long
_drbd_start_io_acct(device, req);
/* process discards always from our submitter thread */
- if (bio_op(bio) & REQ_OP_DISCARD)
+ if ((bio_op(bio) & REQ_OP_WRITE_ZEROES) ||
+ (bio_op(bio) & REQ_OP_DISCARD))
goto queue_for_submitter_thread;
if (rw == WRITE && req->private_bio && req->i.size