linux-kernel - Re: [PATCH 1/1] blk-core: Remove blk_end

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Date:   Wed, 19 Jun 2019 20:35:34 +0300
From:   Pavel Begunkov <asml.silence@...il.com>
To:     Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] blk-core: Remove blk_end_request*() declarations

Ping?

On 23/05/2019 18:43, Pavel Begunkov (Silence) wrote:
> From: Pavel Begunkov <asml.silence@...il.com>
> 
> Commit a1ce35fa49852db60fc6e268 ("block: remove dead elevator code")
> deleted blk_end_request() and friends, but some declaration are still
> left. Purge them.
> 
> Signed-off-by: Pavel Begunkov <asml.silence@...il.com>
> ---
>  block/blk-core.c       |  2 +-
>  include/linux/blkdev.h | 12 ------------
>  2 files changed, 1 insertion(+), 13 deletions(-)
> 
> diff --git a/block/blk-core.c b/block/blk-core.c
> index 419d600e6637..48ba4783437f 100644
> --- a/block/blk-core.c
> +++ b/block/blk-core.c
> @@ -1393,7 +1393,7 @@ EXPORT_SYMBOL_GPL(blk_steal_bios);
>   *
>   *     This special helper function is only for request stacking drivers
>   *     (e.g. request-based dm) so that they can handle partial completion.
> - *     Actual device drivers should use blk_end_request instead.
> + *     Actual device drivers should use blk_mq_end_request instead.
>   *
>   *     Passing the result of blk_rq_bytes() as @nr_bytes guarantees
>   *     %false return from this function.
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 1aafeb923e7b..d069b5e2a295 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -1021,21 +1021,9 @@ void blk_steal_bios(struct bio_list *list, struct request *rq);
>   *
>   * blk_update_request() completes given number of bytes and updates
>   * the request without completing it.
> - *
> - * blk_end_request() and friends.  __blk_end_request() must be called
> - * with the request queue spinlock acquired.
> - *
> - * Several drivers define their own end_request and call
> - * blk_end_request() for parts of the original function.
> - * This prevents code duplication in drivers.
>   */
>  extern bool blk_update_request(struct request *rq, blk_status_t error,
>  			       unsigned int nr_bytes);
> -extern void blk_end_request_all(struct request *rq, blk_status_t error);
> -extern bool __blk_end_request(struct request *rq, blk_status_t error,
> -			      unsigned int nr_bytes);
> -extern void __blk_end_request_all(struct request *rq, blk_status_t error);
> -extern bool __blk_end_request_cur(struct request *rq, blk_status_t error);
>  
>  extern void __blk_complete_request(struct request *);
>  extern void blk_abort_request(struct request *);
> 

-- 
Yours sincerely,
Pavel Begunkov



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