linux-ext4 - Re: [PATCH 1/1] Revert "iomap: fall back to buffered writes for invalidation failures"

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Date:   Thu, 10 Feb 2022 06:47:54 +0100
From:   Christoph Hellwig <hch@....de>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Christoph Hellwig <hch@....de>, linux-kernel@...r.kernel.org,
        Stable <stable@...r.kernel.org>,
        Dave Chinner <dchinner@...hat.com>,
        Goldwyn Rodrigues <rgoldwyn@...e.com>,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        Bob Peterson <rpeterso@...hat.com>,
        Damien Le Moal <damien.lemoal@....com>,
        Theodore Ts'o <tytso@....edu>,
        Andreas Gruenbacher <agruenba@...hat.com>,
        Ritesh Harjani <riteshh@...ux.ibm.com>,
        Johannes Thumshirn <jth@...nel.org>, linux-xfs@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
        cluster-devel@...hat.com,
        syzbot+0ed9f769264276638893@...kaller.appspotmail.com
Subject: Re: [PATCH 1/1] Revert "iomap: fall back to buffered writes for
 invalidation failures"

On Wed, Feb 09, 2022 at 03:59:48PM +0000, Lee Jones wrote:
> > Well, maybe you should actually debug and try to understand what is
> > going on before blindly reverting random commits.
> 
> That is not a reasonable suggestion.

In that case we fudamentally disagree what "reasonable" means.

Sending a revert for a 2 year old commit based on a BUG in consumer of
that subsystem based on a really old kernel without any explanation
of why that revert is even directly related to the problem and not just
a casuality is what I would define as completely unreasable.

Please send a proper bug report to the ext4 maintainer first, and we
can work from there.