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Date:   Mon, 5 Jul 2021 12:42:08 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     "Shivamurthy Shastri (sshivamurthy)" <sshivamurthy@micron.com>
Cc:     Christoph Hellwig <hch@lst.de>,
        "kbusch@kernel.org" <kbusch@kernel.org>,
        "axboe@fb.com" <axboe@fb.com>,
        "sagi@grimberg.me" <sagi@grimberg.me>,
        "linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "shiva.linuxworks@gmail.com" <shiva.linuxworks@gmail.com>
Subject: Re: [EXT] Re: [PATCH] nvme: Add abrupt shutdown support
Message-ID: <20210705104208.GA14891@lst.de>
References: <20210705101157.1009135-1-sshivamurthy@micron.com> <20210705101554.GA12803@lst.de> <BLAPR08MB6900B02E65B542A2C2F174E1B81C9@BLAPR08MB6900.namprd08.prod.outlook.com>
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On Mon, Jul 05, 2021 at 10:40:21AM +0000, Shivamurthy Shastri (sshivamurthy) wrote:
> Micron Confidential
> 
> Hi Christoph,
> 
> > 
> > 
> > On Mon, Jul 05, 2021 at 10:11:57AM +0000, shiva.linuxworks@gmail.com wrote:
> > > From: Shivamurthy Shastri <sshivamurthy@micron.com>
> > >
> > > Enabling the abrupt shutdown support. In this shutdown type host does
> > > not need to send Delete I/O Submission Queue and Delete I/O Completion
> > > queue commands to the device.
> > 
> > Why?
> 
> This is to achieve faster shutdown at the cost of data in-flight.

What is the actual use case, and why would a module paramter be a good
interface?