[PATCH 0/2] scsi: revert two commits for avoiding host-wide host_busy counter for scsi_mq

Ming Lei <ming.lei@xxxxxxxxxx> · Mon, 27 Aug 2018 15:24:41 +0800

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.

Ming Lei (2):
  Revert "scsi: core: fix scsi_host_queue_ready"
  Revert "scsi: core: avoid host-wide host_busy counter for scsi_mq"

 drivers/scsi/hosts.c    | 24 +-----------------------
 drivers/scsi/scsi_lib.c | 21 +++++----------------
 2 files changed, 6 insertions(+), 39 deletions(-)

Cc: Omar Sandoval <osandov@xxxxxx>,
Cc: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>,
Cc: James Bottomley <james.bottomley@xxxxxxxxxxxxxxxxxxxxx>,
Cc: Christoph Hellwig <hch@xxxxxx>,
Cc: Don Brace <don.brace@xxxxxxxxxxxxx>
Cc: Kashyap Desai <kashyap.desai@xxxxxxxxxxxx>
Cc: Mike Snitzer <snitzer@xxxxxxxxxx>
Cc: Hannes Reinecke <hare@xxxxxxx>
Cc: Laurence Oberman <loberman@xxxxxxxxxx>
Cc: Bart Van Assche <bart.vanassche@xxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>

-- 
2.9.5