From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [59.151.112.132] (helo=heian.cn.fujitsu.com) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZTmmW-0007XZ-53 for linux-mtd@lists.infradead.org; Mon, 24 Aug 2015 08:07:04 +0000 Message-ID: <55DACF2B.1020207@cn.fujitsu.com> Date: Mon, 24 Aug 2015 16:00:43 +0800 From: Dongsheng Yang MIME-Version: 1.0 To: Christoph Hellwig , Artem Bityutskiy CC: Brian Norris , Richard Weinberger , , , Subject: Re: [PATCH 2/2] ubifs: Allow O_DIRECT References: <1440016553-26481-1-git-send-email-richard@nod.at> <1440016553-26481-2-git-send-email-richard@nod.at> <55D542C5.6040500@cn.fujitsu.com> <1440070300.31419.202.camel@gmail.com> <55D5BC92.8050903@nod.at> <20150820204933.GG74600@google.com> <1440400405.15510.29.camel@gmail.com> <20150824075324.GA28336@infradead.org> <1440403362.15510.39.camel@gmail.com> <20150824080350.GA17815@infradead.org> In-Reply-To: <20150824080350.GA17815@infradead.org> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 08/24/2015 04:03 PM, Christoph Hellwig wrote: > On Mon, Aug 24, 2015 at 11:02:42AM +0300, Artem Bityutskiy wrote: >> Back when we were writing UBIFS, we did not need direct IO, so we did >> not implement it. But yes, probably someone who cares could just try >> implementing this feature. > > So I think the answer here is to implement a real version insted of > adding hacks to pretend it is supported. Actually, I had a plan for it. But it's for 4.4 or 4.5 in my plan. Yang > . >