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From: Adrian Hunter <adrian.hunter@nokia.com>
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Subject: Re: open command fails in UBIFS when pass O_DIRECT Flag
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	naveen yadav <yad.naveen@gmail.com>
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Jon Fraser wrote:
> Is this planned for the future?

Not at the moment.

> Is there any technical reason that prevents implementing direct IO?

Not that I can think of.  But memory mapping is probably better and
that is supported.

> 
> Jon Fraser
> Broadcom
> 
> On Wed, 2009-07-15 at 01:05 -0700, Adrian Hunter wrote:
>> naveen yadav wrote:
>>> I am using UBIFS file system, and i am able to read/write.
>>> But when i use O_DIRECT flag it fails in open command. will you pls
>>> let me know is it issue with UBIFS.
>> UBIFS does not support direct I/O, sorry.
>>
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> 
>