linux-kernel - Re: [PATCH v4 72/73] xfs: Convert mru cache to XArray

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Message-ID: <20171211233835.GV5858@dastard>
Date:   Tue, 12 Dec 2017 10:38:35 +1100
From:   Dave Chinner <david@...morbit.com>
To:     Joe Perches <joe@...ches.com>
Cc:     Alan Stern <stern@...land.harvard.edu>,
        Byungchul Park <byungchul.park@....com>,
        Theodore Ts'o <tytso@....edu>,
        Matthew Wilcox <willy@...radead.org>,
        Matthew Wilcox <mawilcox@...rosoft.com>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Jens Axboe <axboe@...nel.dk>,
        Rehas Sachdeva <aquannie@...il.com>, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net,
        linux-nilfs@...r.kernel.org, linux-btrfs@...r.kernel.org,
        linux-xfs@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-team@....com
Subject: Re: [PATCH v4 72/73] xfs: Convert mru cache to XArray

On Mon, Dec 11, 2017 at 02:12:28PM -0800, Joe Perches wrote:
> On Tue, 2017-12-12 at 08:43 +1100, Dave Chinner wrote:
> > On Sat, Dec 09, 2017 at 09:00:18AM -0800, Joe Perches wrote:
> > > On Sat, 2017-12-09 at 09:36 +1100, Dave Chinner wrote:
> > > > 	1. Using lockdep_set_novalidate_class() for anything other
> > > > 	than device->mutex will throw checkpatch warnings. Nice. (*)
> > > []
> > > > (*) checkpatch.pl is considered mostly harmful round here, too,
> > > > but that's another rant....
> > > 
> > > How so?
> > 
> > Short story is that it barfs all over the slightly non-standard
> > coding style used in XFS.
> []
> > This sort of stuff is just lowest-common-denominator noise - great
> > for new code and/or inexperienced developers, but not for working
> > with large bodies of existing code with slightly non-standard
> > conventions.
> 
> Completely reasonable.  Thanks.
> 
> Do you get many checkpatch submitters for fs/xfs?

We used to. Not recently, though.

Cheers,

Dave.
-- 
Dave Chinner
david@...morbit.com