linux-kernel - Re: stop using ->read and ->write for kernel access v3

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Date:   Wed, 8 Jul 2020 08:07:30 +0200
From:   Christoph Hellwig <hch@....de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Christoph Hellwig <hch@....de>, Al Viro <viro@...iv.linux.org.uk>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>
Subject: Re: stop using ->read and ->write for kernel access v3

On Tue, Jul 07, 2020 at 01:24:01PM -0700, Linus Torvalds wrote:
> On Tue, Jul 7, 2020 at 10:48 AM Christoph Hellwig <hch@....de> wrote:
> >
> > Hi Al and Linus (and Stephen, see below),
> >
> > as part of removing set_fs entirely (for which I have a working
> > prototype), we need to stop calling ->read and ->write with kernel
> > pointers under set_fs.
> 
> I'd be willing to pick up patches 1-6 as trivial and obvious cleanups
> right now, if you sent those to me as a pull request. That would at
> least focus the remaining series a bit on the actual changes..

If we do that we should do 1-7 and 9-12 to include the read side as
well.  But yes, maybe that way we'll get started.