Re: [PATCH 20/25] io-controller: map async requests to appropriate cgroup

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Aug 03, 2009 at 10:13:46AM +0800, Gui Jianfeng wrote:> Vivek Goyal wrote:> ...> > +> > +struct io_group *io_get_io_group_bio(struct request_queue *q, struct bio *bio,> > +					int create)> > +{> > +	struct page *page = NULL;> > +> > +	/*> > +	 * Determine the group from task context. Even calls from> > +	 * blk_get_request() which don't have any bio info will be mapped> > +	 * to the task's group> > +	 */> > +	if (!bio)> > +		goto sync;> > +> > +	if (bio_barrier(bio)) {> > +		/*> > +		 * Map barrier requests to root group. May be more special> > +		 * bio cases should come here> > +		 */> > +		return q->elevator->efqd.root_group;> > +	}> > +> > +	/* Map the sync bio to the right group using task context */> > +	if (elv_bio_sync(bio))> > +		goto sync;> > +> > +#ifdef CONFIG_TRACK_ASYNC_CONTEXT> > +	/* Determine the group from info stored in page */> > +	page = bio_iovec_idx(bio, 0)->bv_page;> > +	return io_get_io_group(q, page, create);> > +#endif> > +> > +sync:> > +	return io_get_io_group(q, NULL, create);> > Fix build warning.> > block/elevator-fq.c: In function ‘io_get_io_group_bio’:> block/elevator-fq.c:2075: warning: unused variable ‘page’> 
Thanks Gui. Will apply in next posting.
Vivek
> ---> diff --git a/block/elevator-fq.c b/block/elevator-fq.c> index 66b10eb..d304f79 100644> --- a/block/elevator-fq.c> +++ b/block/elevator-fq.c> @@ -2102,7 +2102,7 @@ struct io_group *io_get_io_group_bio(struct request_queue *q, struct bio *bio,>  #endif>  >  sync:> -	return io_get_io_group(q, NULL, create);> +	return io_get_io_group(q, page, create);>  }>  EXPORT_SYMBOL(io_get_io_group_bio);> > > > +}> > +EXPORT_SYMBOL(io_get_io_group_bio);> > +> > > -- > Regards> Gui Jianfeng_______________________________________________Containers mailing listContainers@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx://lists.linux-foundation.org/mailman/listinfo/containers


[Index of Archives]     [Cgroups]     [Netdev]     [Linux Wireless]     [Kernel Newbies]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite Forum]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux