[PATCH 2/2] nbd: set max discard sectors in the unit of sector

[Hou Pu <houpu@xxxxxxxxxxxxx>]

Change blk_queue_max_discard_sectors from bytes to sector
to be more clearly.

Signed-off-by: Hou Pu <houpu@xxxxxxxxxxxxx>
---
 drivers/block/nbd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 59c6ce2d2e43..8c59ada4be64 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -304,7 +304,7 @@ static void nbd_size_update(struct nbd_device *nbd)
 	if (config->flags & NBD_FLAG_SEND_TRIM) {
 		nbd->disk->queue->limits.discard_granularity = config->blksize;
 		nbd->disk->queue->limits.discard_alignment = config->blksize;
-		blk_queue_max_discard_sectors(nbd->disk->queue, UINT_MAX);
+		blk_queue_max_discard_sectors(nbd->disk->queue, UINT_MAX >> 9);
 	}
 	blk_queue_logical_block_size(nbd->disk->queue, config->blksize);
 	blk_queue_physical_block_size(nbd->disk->queue, config->blksize);
@@ -1224,7 +1224,7 @@ static void nbd_config_put(struct nbd_device *nbd)
 		nbd->tag_set.timeout = 0;
 		nbd->disk->queue->limits.discard_granularity = 0;
 		nbd->disk->queue->limits.discard_alignment = 0;
-		blk_queue_max_discard_sectors(nbd->disk->queue, UINT_MAX);
+		blk_queue_max_discard_sectors(nbd->disk->queue, UINT_MAX >> 9);
 		blk_queue_flag_clear(QUEUE_FLAG_DISCARD, nbd->disk->queue);
 
 		mutex_unlock(&nbd->config_lock);
-- 
2.11.0