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To: Ming Lei <ming.lei@redhat.com>
Cc: linux-scsi@vger.kernel.org, Jens Axboe <axboe@fb.com>,
        linux-block@vger.kernel.org, Omar Sandoval <osandov@fb.com>,
        "Martin K. Petersen" <martin.petersen@oracle.com>,
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Subject: Re: [PATCH V2 0/2] scsi: scsi-mq: don't hold host_busy in IO path
From: "Martin K. Petersen" <martin.petersen@oracle.com>
References: <20180624140327.28146-1-ming.lei@redhat.com>
Date: Tue, 26 Jun 2018 12:53:44 -0400
In-Reply-To: <20180624140327.28146-1-ming.lei@redhat.com> (Ming Lei's message
        of "Sun, 24 Jun 2018 22:03:25 +0800")
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Ming,

> This patches removes the expensive atomic opeation on host-wide
> counter of .host_busy for scsi-mq, and it is observed that IOPS can be
> increased by 15% with this change in IO test over scsi_debug.

Applied to 4.19/scsi-queue, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering