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Date:	Mon, 9 Jul 2012 11:01:19 -0400
From:	Theodore Ts'o <>
To:	Zheng Liu <>
Cc:, Tao Ma <>,
	Eric Sandeen <>,
	Robin Dong <>,
	Zheng Liu <>
Subject: Re: [PATCH 3/3 v3] ext4: add dio overwrite nolock

On Sun, Jul 01, 2012 at 10:21:46PM +0800, Zheng Liu wrote:
> From: Zheng Liu <>
> Aligned and overwrite direct I/O can be parallelized.  In ext4_file_dio_write,
> we first check whether these conditions are satisfied or not.  If so, we
> take i_data_sem and release i_mutex lock directly.  Meanwhile iocb->private is
> set to indicate that this is a dio overwrite, and it will be handled in
> ext4_ext_direct_IO.
> CC: Tao Ma <>
> CC: Eric Sandeen <>
> CC: Robin Dong <>
> Signed-off-by: Zheng Liu <>

Thanks, applied.

					- Ted
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