From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Mon, 24 Aug 2015 00:53:24 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Artem Bityutskiy <dedekind1@gmail.com>
Cc: Brian Norris <computersforpeace@gmail.com>,
 Richard Weinberger <richard@nod.at>,
 Dongsheng Yang <yangds.fnst@cn.fujitsu.com>,
 linux-mtd@lists.infradead.org, linux-fsdevel@vger.kernel.org,
 linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] ubifs: Allow O_DIRECT
Message-ID: <20150824075324.GA28336@infradead.org>
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 <1440070300.31419.202.camel@gmail.com> <55D5BC92.8050903@nod.at>
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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?