linux-kernel - Re: [PATCH 2/2] ubifs: Allow O

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Message-ID: <20150824075324.GA28336@infradead.org>
Date:	Mon, 24 Aug 2015 00:53:24 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Artem Bityutskiy <dedekind1@...il.com>
Cc:	Brian Norris <computersforpeace@...il.com>,
	Richard Weinberger <richard@....at>,
	Dongsheng Yang <yangds.fnst@...fujitsu.com>,
	linux-mtd@...ts.infradead.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] ubifs: Allow O_DIRECT

On Mon, Aug 24, 2015 at 10:13:25AM +0300, Artem Bityutskiy wrote:
> 1. we are the only FS erroring out on O_DIRECT
> 2. other file-systems not supporting direct IO just fake it

There are lots of file systems not supporting O_DIRECT, but ubifs might
be the most common one.  Given that O_DIRECT implementations aren't
hard, so what's holding back a real implementation?
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