linux-kernel - Re: [PATCH 15/23] seq_file: switch over direct seq_read method calls to seq_read

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Date:   Mon, 20 Jul 2020 11:33:19 +0200
From:   Christoph Hellwig <hch@....de>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Christoph Hellwig <hch@....de>, Al Viro <viro@...iv.linux.org.uk>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        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@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 15/23] seq_file: switch over direct seq_read method
 calls to seq_read_iter

On Fri, Jul 17, 2020 at 11:09:13PM +0200, Thomas Gleixner wrote:
> Christoph Hellwig <hch@....de> writes:
> 
> > Switch over all instances used directly as methods using these sed
> > expressions:
> >
> > sed -i -e 's/\.read\(\s*=\s*\)seq_read/\.read_iter\1seq_read_iter/g'
> 
> This sucks, really. I just got a patch against this converting the
> changed version to DEFINE_SHOW_ATTRIBUTE(somefile) and thereby removing
> the whole open coded gunk.

The changed version of what?

> If we do a tree wide change like this, then can we pretty please use a
> coccinelle script to convert all trivial instances to use
> DEFINE_SHOW_ATTRIBUTE so we don't have to touch the same place over and
> over.

I'm not going to complain about that if someone offers a script
for that.