On 8/27/18 1:24 AM, Ming Lei wrote: > Hi, > > There is fundamental issue in commit 328728630d9f2bf1 (scsi: core: avoid > host-wide host_busy counter for scsi_mq) because SCSI's host busy counter > may not be same with counter of blk-mq's inflight tags, especially in case > of none io scheduler. > > So please revert the two commits. Please do, they break changing write cache mode on my SATA drives. You can add my tested-by and/or reported-by to this. -- Jens Axboe