Hi,

I'm going to release a new version of bio_cgroup soon, which doesn't
have "struct list_head blist" anymore and whose overhead is minimized.

quoted text
> > o biocgroup functionality.
> > o Implemented new controller "bio"
> > o Most of it picked from dm-ioband biocgroup implementation patches.
> > 
> page_cgroup implementation is changed and most of this patch needs rework.
> please see the latest one. (I think most of new characteristics are useful
> for you.)
> 
> One comment from me is
> ==
> > +struct page_cgroup {
> > +	struct list_head lru;		/* per cgroup LRU list */
> > +	struct page *page;
> > +	struct mem_cgroup *mem_cgroup;
> > +	int flags;
> > +#ifdef CONFIG_CGROUP_BIO
> > +	struct list_head blist;		/* for bio_cgroup page list */
> > +	struct bio_cgroup *bio_cgroup;
> > +#endif
> > +};
> ==
> 
> this blist is too bad. please keep this object small...
> 
> Maybe dm-ioband people will post his own new one. just making use of it is an idea.
> 
> Thanks,
> -Kame
> 
> 
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