linux-kernel - Re: [PATCH] erofs: support direct IO for uncompressed file

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Message-ID: <20201223085401.GA336@infradead.org>
Date:   Wed, 23 Dec 2020 08:54:01 +0000
From:   Christoph Hellwig <hch@...radead.org>
To:     Huang Jianan <huangjianan@...o.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Gao Xiang <hsiangkao@...hat.com>, guoweichao@...o.com,
        linux-erofs@...ts.ozlabs.org, zhangshiming@...o.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] erofs: support direct IO for uncompressed file

On Wed, Dec 23, 2020 at 04:48:20PM +0800, Huang Jianan wrote:
> Hi Christoph,
> 
> The reason we use dio is because we need to deploy the patch on some early
> kernel versions, and we don't pay much attention to the change of iomap.

No, that is never an excuse for upstream development.