1 files changed, 20 insertions, 7 deletions

diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 864c98e74875..60757ac31701 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
+// SPDX-License-Identifier: GPL-2.0-only
 /*
    drbd_nl.c
 
@@ -1210,6 +1210,7 @@ static void decide_on_discard_support(struct drbd_device *device,
 	struct drbd_connection *connection =
 		first_peer_device(device)->connection;
 	struct request_queue *q = device->rq_queue;
+	unsigned int max_discard_sectors;
 
 	if (bdev && !bdev_max_discard_sectors(bdev->backing_bdev))
 		goto not_supported;
@@ -1230,15 +1231,14 @@ static void decide_on_discard_support(struct drbd_device *device,
 	 * topology on all peers.
 	 */
 	blk_queue_discard_granularity(q, 512);
-	q->limits.max_discard_sectors = drbd_max_discard_sectors(connection);
-	q->limits.max_write_zeroes_sectors =
-		drbd_max_discard_sectors(connection);
+	max_discard_sectors = drbd_max_discard_sectors(connection);
+	blk_queue_max_discard_sectors(q, max_discard_sectors);
+	blk_queue_max_write_zeroes_sectors(q, max_discard_sectors);
 	return;
 
 not_supported:
 	blk_queue_discard_granularity(q, 0);
-	q->limits.max_discard_sectors = 0;
-	q->limits.max_write_zeroes_sectors = 0;
+	blk_queue_max_discard_sectors(q, 0);
 }
 
 static void fixup_write_zeroes(struct drbd_device *device, struct request_queue *q)
@@ -1256,6 +1256,18 @@ static void fixup_write_zeroes(struct drbd_device *device, struct request_queue
 		q->limits.max_write_zeroes_sectors = 0;
 }
 
+static void fixup_discard_support(struct drbd_device *device, struct request_queue *q)
+{
+	unsigned int max_discard = device->rq_queue->limits.max_discard_sectors;
+	unsigned int discard_granularity =
+		device->rq_queue->limits.discard_granularity >> SECTOR_SHIFT;
+
+	if (discard_granularity > max_discard) {
+		blk_queue_discard_granularity(q, 0);
+		blk_queue_max_discard_sectors(q, 0);
+	}
+}
+
 static void drbd_setup_queue_param(struct drbd_device *device, struct drbd_backing_dev *bdev,
 				   unsigned int max_bio_size, struct o_qlim *o)
 {
@@ -1288,6 +1300,7 @@ static void drbd_setup_queue_param(struct drbd_device *device, struct drbd_backi
 		disk_update_readahead(device->vdisk);
 	}
 	fixup_write_zeroes(device, q);
+	fixup_discard_support(device, q);
 }
 
 void drbd_reconsider_queue_parameters(struct drbd_device *device, struct drbd_backing_dev *bdev, struct o_qlim *o)
@@ -1530,7 +1543,7 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info)
 		goto fail_unlock;
 	}
 
-	if (!expect(new_disk_conf->resync_rate >= 1))
+	if (!expect(device, new_disk_conf->resync_rate >= 1))
 		new_disk_conf->resync_rate = 1;
 
 	sanitize_disk_conf(device, new_disk_conf, device->ldev);