linux-ext4 - Re: [PATCH 5/5] ext4: Remove unnecessary wait for extent conversion in ext4

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Date:	Fri, 4 Jan 2013 15:26:52 +0800
From:	Zheng Liu <gnehzuil.liu@...il.com>
To:	Jan Kara <jack@...e.cz>
Cc:	Ted Tso <tytso@....edu>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH 5/5] ext4: Remove unnecessary wait for extent conversion
 in ext4_fallocate()

On Wed, Jan 02, 2013 at 06:45:44PM +0100, Jan Kara wrote:
> Now that we don't merge uninitialized extents anymore, ext4_fallocate()
> is free to operate on the inode while there are still some extent
> conversions pending - it won't disturb them in any way.
> 
> Signed-off-by: Jan Kara <jack@...e.cz>

Reviewed-by: Zheng Liu <wenqing.lz@...bao.com>
Regards,
                                                - Zheng

> ---
>  fs/ext4/extents.c |    2 --
>  1 files changed, 0 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
> index f1ce33a..5c7a46a 100644
> --- a/fs/ext4/extents.c
> +++ b/fs/ext4/extents.c
> @@ -4406,8 +4406,6 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
>  	if (len <= EXT_UNINIT_MAX_LEN << blkbits)
>  		flags |= EXT4_GET_BLOCKS_NO_NORMALIZE;
>  
> -	/* Prevent race condition between unwritten */
> -	ext4_flush_unwritten_io(inode);
>  retry:
>  	while (ret >= 0 && ret < max_blocks) {
>  		map.m_lblk = map.m_lblk + ret;
> -- 
> 1.7.1
> 
> --
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