linux-kernel - Re: [PATCH V4] scsi: target: tcmu: Make cmd_ring

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Date:   Sat, 19 Feb 2022 17:19:13 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Guixin Liu <kanie@...ux.alibaba.com>
Cc:     bostroesser@...il.com, martin.petersen@...cle.com,
        linux-scsi@...r.kernel.org, target-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org, xiaoguang.wang@...ux.alibaba.com,
        xlpang@...ux.alibaba.com
Subject: Re: [PATCH V4] scsi: target: tcmu: Make cmd_ring_size changeable
 via configfs


Guixin,

> Make cmd_ring_size changeable similar to the way it is done for
> max_data_area_mb, the reason is that our tcmu client will create
> thousands of tcmu instances, and this will consume lots of mem with
> default 8Mb cmd ring size for every backstore.

Applied to 5.18/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering