linux-kernel - Re: [PATCH 0/3] remove rw_page() from brd, pmem and btt

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Message-ID: <20170803080544.GA19916@lst.de>
Date:   Thu, 3 Aug 2017 10:05:44 +0200
From:   Christoph Hellwig <hch@....de>
To:     Minchan Kim <minchan@...nel.org>
Cc:     Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Matthew Wilcox <willy@...radead.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, "karam . lee" <karam.lee@....com>,
        Jerome Marchand <jmarchan@...hat.com>,
        Nitin Gupta <ngupta@...are.org>, seungho1.park@....com,
        Christoph Hellwig <hch@....de>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Chinner <david@...morbit.com>, Jan Kara <jack@...e.cz>,
        Jens Axboe <axboe@...nel.dk>,
        Vishal Verma <vishal.l.verma@...el.com>,
        linux-nvdimm@...ts.01.org
Subject: Re: [PATCH 0/3] remove rw_page() from brd, pmem and btt

FYI, for the read side we should use the on-stack bio unconditionally,
as it will always be a win (or not show up at all).