linux-kernel - Re: [PATCH] fs : remove unneeded plug in mpage

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Date:	Thu, 17 Nov 2011 14:22:52 +0530
From:	Amit Sahrawat <amit.sahrawat83@...il.com>
To:	Namjae Jeon <linkinjeon@...il.com>
Cc:	viro@...iv.linux.org.uk, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH] fs : remove unneeded plug in mpage_readpages.

Any feedback for this patch?

Thanks & Regards,
Amit Sahrawat

On Fri, Nov 11, 2011 at 9:24 PM, Namjae Jeon <linkinjeon@...il.com> wrote:
> block plug in mpage_readpages is duplicated with plug of read_pages. So block plug is not needed in mpage_readpages.
>
> Signed-off-by: Namjae Jeon <linkinjeon@...il.com>
> Signed-off-by: Amit Sahrawat <amit.sahrawat83@...il.com>
> ---
>  fs/mpage.c |    4 ----
>  1 files changed, 0 insertions(+), 4 deletions(-)
>
> diff --git a/fs/mpage.c b/fs/mpage.c
> index fdfae9f..643e9f5 100644
> --- a/fs/mpage.c
> +++ b/fs/mpage.c
> @@ -371,9 +371,6 @@ mpage_readpages(struct address_space *mapping, struct list_head *pages,
>        sector_t last_block_in_bio = 0;
>        struct buffer_head map_bh;
>        unsigned long first_logical_block = 0;
> -       struct blk_plug plug;
> -
> -       blk_start_plug(&plug);
>
>        map_bh.b_state = 0;
>        map_bh.b_size = 0;
> @@ -395,7 +392,6 @@ mpage_readpages(struct address_space *mapping, struct list_head *pages,
>        BUG_ON(!list_empty(pages));
>        if (bio)
>                mpage_bio_submit(READ, bio);
> -       blk_finish_plug(&plug);
>        return 0;
>  }
>  EXPORT_SYMBOL(mpage_readpages);
> --
> 1.7.4.4
>
>
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