Re: [RFC][PATCH] radix-tree based page_cgroup. [7/7] per cpu fast lookup

["minchan Kim" <barrioskmc@gmail.com>]

I knew you purpose with following patch <radix-tree based page_cgroup.
[8/7] vmalloc for large machines>
I am afraid your patch list isn't arranged well. :-<

On Tue, Feb 26, 2008 at 10:26 PM, minchan Kim <barrioskmc@gmail.com> wrote:
> >  -struct page_cgroup *get_page_cgroup(struct page *page, gfp_t gfpmask)
>  >  +struct page_cgroup *__get_page_cgroup(struct page *page, gfp_t gfpmask)
>  >   {
>  >         struct page_cgroup_root *root;
>  >         struct page_cgroup *pc, *base_addr;
>  >  @@ -96,8 +110,14 @@ retry:
>  >         pc = radix_tree_lookup(&root->root_node, idx);
>  >         rcu_read_unlock();
>  >
>  >  +       if (pc) {
>  >  +               if (!in_interrupt())
>  >  +                       save_result(pc, idx);
>  >  +       }
>  >  +
>
>  I didn't look through mem_control's patches yet.
>  Please understand me if my question might be foolish.
>
>  why do you prevent when it happen in interrupt context ?
>  Do you have any reason ?
>
>  --
>  Thanks,
>  barrios
>



-- 
Thanks,
barrios

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