[dm-devel] Re: [PATCH 05/20] io-controller: Common hierarchical fair queuing code in elevaotor layer

[Vivek Goyal <vgoyal redhat com>]

On Fri, Jun 05, 2009 at 05:36:16PM +0800, Gui Jianfeng wrote:
> Vivek Goyal wrote:
> ...
> > +#ifdef CONFIG_GROUP_IOSCHED
> > +extern int io_group_allow_merge(struct request *rq, struct bio *bio);
> > +extern void io_ioq_move(struct elevator_queue *e, struct io_queue *ioq,
> 
> io_ioq_move is not used anymore, removing the dead code.
> 

Thanks Gui. Will include the patch in next posting.

Vivek

> Singed-off-by: Gui Jianfeng <guijianfeng cn fujitsu com>
> ---
>  block/elevator-fq.h |   11 -----------
>  1 files changed, 0 insertions(+), 11 deletions(-)
> 
> diff --git a/block/elevator-fq.h b/block/elevator-fq.h
> index 1c99e83..24a3af9 100644
> --- a/block/elevator-fq.h
> +++ b/block/elevator-fq.h
> @@ -537,8 +537,6 @@ static inline struct io_group *ioq_to_io_group(struct io_queue *ioq)
>  
>  #ifdef CONFIG_GROUP_IOSCHED
>  extern int io_group_allow_merge(struct request *rq, struct bio *bio);
> -extern void io_ioq_move(struct elevator_queue *e, struct io_queue *ioq,
> -					struct io_group *iog);
>  static inline bfq_weight_t iog_weight(struct io_group *iog)
>  {
>  	return iog->entity.weight;
> @@ -588,15 +586,6 @@ static inline int update_requeue(struct io_queue *ioq, int requeue)
>  }
>  
>  #else /* !GROUP_IOSCHED */
> -/*
> - * No ioq movement is needed in case of flat setup. root io group gets cleaned
> - * up upon elevator exit and before that it has been made sure that both
> - * active and idle tree are empty.
> - */
> -static inline void io_ioq_move(struct elevator_queue *e, struct io_queue *ioq,
> -					struct io_group *iog)
> -{
> -}
>  
>  static inline int io_group_allow_merge(struct request *rq, struct bio *bio)
>  {
> -- 
> 1.5.4.rc3
>