linux-kernel - Re: [PATCH v2 0/5] ibmvfc: MQ preparatory locking work

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Message-ID: <yq1ft3ccd34.fsf@ca-mkp.ca.oracle.com>
Date:   Thu, 07 Jan 2021 22:38:48 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Tyrel Datwyler <tyreld@...ux.ibm.com>
Cc:     james.bottomley@...senpartnership.com, martin.petersen@...cle.com,
        linux-scsi@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org, brking@...ux.ibm.com
Subject: Re: [PATCH v2 0/5] ibmvfc: MQ preparatory locking work


Tyrel,

> The ibmvfc driver in its current form relies heavily on the
> host_lock. This patchset introduces a genric queue with its own queue
> lock and sent/free event list locks. This generic queue allows the
> driver to decouple the primary queue and future subordinate queues
> from the host lock reducing lock contention while also relaxing
> locking for submissions and completions to simply the list lock of the
> queue in question.

Applied to 5.12/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering