linux-kernel - Re: [PATCH] block: remove unused ll_new

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Date:	Mon, 20 Oct 2008 14:11:55 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	jens.axboe@...cle.com
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] block: remove unused ll_new_mergeable()

On Sat, 11 Oct 2008 15:38:08 +0900
FUJITA Tomonori <fujita.tomonori@....ntt.co.jp> wrote:

> This is against the latest git (b922df7383749a1c0b7ea64c50fa839263d3816b).
> =
> From: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
> Subject: [PATCH] block: remove unused ll_new_mergeable()
> 
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
> ---
>  block/blk-merge.c |   21 ---------------------
>  1 files changed, 0 insertions(+), 21 deletions(-)

Ping. Any reason to keep this function?


> diff --git a/block/blk-merge.c b/block/blk-merge.c
> index 68b0f1e..37bcfc9 100644
> --- a/block/blk-merge.c
> +++ b/block/blk-merge.c
> @@ -218,27 +218,6 @@ new_segment:
>  }
>  EXPORT_SYMBOL(blk_rq_map_sg);
>  
> -static inline int ll_new_mergeable(struct request_queue *q,
> -				   struct request *req,
> -				   struct bio *bio)
> -{
> -	int nr_phys_segs = bio_phys_segments(q, bio);
> -
> -	if (req->nr_phys_segments + nr_phys_segs > q->max_phys_segments) {
> -		req->cmd_flags |= REQ_NOMERGE;
> -		if (req == q->last_merge)
> -			q->last_merge = NULL;
> -		return 0;
> -	}
> -
> -	/*
> -	 * A hw segment is just getting larger, bump just the phys
> -	 * counter.
> -	 */
> -	req->nr_phys_segments += nr_phys_segs;
> -	return 1;
> -}
> -
>  static inline int ll_new_hw_segment(struct request_queue *q,
>  				    struct request *req,
>  				    struct bio *bio)
> -- 
> 1.5.5.GIT
> 
> --
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