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

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Message-ID: <55DAC5AB.2070802@cn.fujitsu.com>
Date:	Mon, 24 Aug 2015 15:20:11 +0800
From:	Dongsheng Yang <yangds.fnst@...fujitsu.com>
To:	<dedekind1@...il.com>, Richard Weinberger <richard@....at>,
	<linux-mtd@...ts.infradead.org>
CC:	<linux-fsdevel@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] ubifs: Allow O_DIRECT

On 08/24/2015 03:17 PM, Dongsheng Yang wrote:
> On 08/24/2015 03:18 PM, Artem Bityutskiy wrote:
>> On Thu, 2015-08-20 at 15:34 +0300, Artem Bityutskiy wrote:
>>> On Thu, 2015-08-20 at 13:40 +0200, Richard Weinberger wrote:
>>>>> Basically, we need to see what is the "common practice" here, and
>>>>> follow it. This requires a small research. What would be the most
>>>>> popular Linux FS which does not support direct I/O? Can we check
>>>>> what
>>>>> it does?
>>>>
>>>> All popular filesystems seem to support direct IO.
>>>> That's the problem, application do not expect O_DIRECT to fail.
>>>>
>>>> My intention was to do it like exofs:
>>>
>>> Fair enough, thanks!
>>>
>>> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@...el.com>
>>
>> Richard, you mention this was suggested by Dave, could you please pint
>> to the discussion, if possible?
>
> http://lists.infradead.org/pipermail/linux-mtd/2015-August/060702.html
>
> That's in a discussion I want to introduce ubifs into xfstests.

And Artem, I cc-ed that discussion to you, maybe you can find it in your
Inbox.
>
> Yang
>>
>> Artem.
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