Re: [PATCH V2 4/6] scsi: set shost->use_managed_irq if driver uses managed irq

To: Ming Lei <ming.lei@xxxxxxxxxx>
Subject: Re: [PATCH V2 4/6] scsi: set shost->use_managed_irq if driver uses managed irq
From: Christoph Hellwig <hch@xxxxxx>
Date: Tue, 6 Jul 2021 07:38:25 +0200
Cc: Jens Axboe <axboe@xxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, "Martin K . Petersen" <martin.petersen@xxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-nvme@xxxxxxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, Sagi Grimberg <sagi@xxxxxxxxxxx>, Daniel Wagner <dwagner@xxxxxxx>, Wen Xiong <wenxiong@xxxxxxxxxx>, John Garry <john.garry@xxxxxxxxxx>, Hannes Reinecke <hare@xxxxxxx>, Keith Busch <kbusch@xxxxxxxxxx>, Damien Le Moal <damien.lemoal@xxxxxxx>, Adaptec OEM Raid Solutions <aacraid@xxxxxxxxxxxxx>, Subbu Seetharaman <subbu.seetharaman@xxxxxxxxxxxx>, Don Brace <don.brace@xxxxxxxxxxxxx>, James Smart <james.smart@xxxxxxxxxxxx>, Kashyap Desai <kashyap.desai@xxxxxxxxxxxx>, Sathya Prakash <sathya.prakash@xxxxxxxxxxxx>, Nilesh Javali <njavali@xxxxxxxxxxx>
In-reply-to: <20210702150555.2401722-5-ming.lei@redhat.com>
User-agent: Mutt/1.5.17 (2007-11-01)

Only megaraid_sas actually ever uses more than a single blk-mq
queue, so this looks weird?

References:
- [PATCH V2 0/6] blk-mq: fix blk_mq_alloc_request_hctx
  - From: Ming Lei
- [PATCH V2 4/6] scsi: set shost->use_managed_irq if driver uses managed irq
  - From: Ming Lei