[PATCH 2/2] nvme: round max_discard_sectors down against discard_granularity

[Tom Yan]

Signed-off-by: Tom Yan <tom.ty89 at gmail.com>
---
 drivers/nvme/host/core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 3a1bfb45da2a..dff165b92ff6 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1636,6 +1636,9 @@ static void nvme_config_discard(struct gendisk *disk, struct nvme_ns *ns)
 	if (blk_queue_flag_test_and_set(QUEUE_FLAG_DISCARD, queue))
 		return;
 
+	ctrl->max_discard_sectors = round_down(ctrl->max_discard_sectors,
+					       size >> SECTOR_SHIFT);
+
 	blk_queue_max_discard_sectors(queue, ctrl->max_discard_sectors);
 	blk_queue_max_discard_segments(queue, ctrl->max_discard_segments);
 
-- 
2.32.0