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-rw-r--r--drivers/md/dm-io.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 5762366333a2..e4b95eaeec8c 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -311,7 +311,7 @@ static void do_region(int op, int op_flags, unsigned region,
* Reject unsupported discard and write same requests.
*/
if (op == REQ_OP_DISCARD)
- special_cmd_max_sectors = q->limits.max_discard_sectors;
+ special_cmd_max_sectors = bdev_max_discard_sectors(where->bdev);
else if (op == REQ_OP_WRITE_ZEROES)
special_cmd_max_sectors = q->limits.max_write_zeroes_sectors;
if ((op == REQ_OP_DISCARD || op == REQ_OP_WRITE_ZEROES) &&