linux-kernel - Re: [RESEND PATCH v1 1/2] trace: events: scsi: Add tag in SCSI trace events

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Date:   Mon, 16 Apr 2018 17:05:59 +0000
From:   "Bean Huo (beanhuo)" <beanhuo@...ron.com>
To:     Bart Van Assche <Bart.VanAssche@....com>,
        "rostedt@...dmis.org" <rostedt@...dmis.org>,
        "rajatja@...gle.com" <rajatja@...gle.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "axboe@...nel.dk" <axboe@...nel.dk>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "mingo@...had.com" <mingo@...had.com>,
        "jejb@...ux.vnet.ibm.com" <jejb@...ux.vnet.ibm.com>
Subject: Re: [RESEND PATCH v1 1/2] trace: events: scsi: Add tag in SCSI trace
 events

Hi, Bart

>On Mon, 2018-04-16 at 09:41 -0700, Rajat Jain wrote:
>> On Mon, Apr 16, 2018 at 8:28 AM, Steven Rostedt <rostedt@...dmis.org>
>wrote:
>> > On Mon, 16 Apr 2018 14:31:49 +0000
>> > "Bean Huo (beanhuo)" <beanhuo@...ron.com> wrote:
>> >
>> > > Print the request tag along with other information while tracing a
>> > > command.
>> > >
>> > > Signed-off-by: Bean Huo <beanhuo@...ron.com>
>>
>> Acked-by: Rajat Jain <rajatja@...gle.com>
>
>This patch is not acceptable because it adds support for tag tracing to the
>legacy block layer only. Any patch that adds a new feature to the legacy block
>layer must also add it to blk-mq.
>
To be honest, I don't understand your point, can you give me more explanation?

>Bart.
>
>