On Sat, 2018-12-01 at 00:38 +-0800, Ming Lei wrote: +AD4 Fixes: 445251d0f4d329a (+ACI-blk-mq: fix discard merge with scheduler attached+ACI) Since this patch fixes a bug introduced in kernel v4.16, does it need a +ACI-Cc: stable+ACI tag? Thanks, Bart.