Re: [PATCH 1/5] cgroup: do ID allocation under css allocator.

From: KAMEZAWA Hiroyuki
Date: Wed Aug 25 2010 - 20:18:53 EST


On Wed, 25 Aug 2010 19:45:00 +0530
Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx> wrote:

> * KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> [2010-08-25 17:06:40]:
>
> > From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
> >
> > Now, css'id is allocated after ->create() is called. But to make use of ID
> > in ->create(), it should be available before ->create().
> >
> > In another thinking, considering the ID is tightly coupled with "css",
> > it should be allocated when "css" is allocated.
> > This patch moves alloc_css_id() to css allocation routine. Now, only 2 subsys,
> > memory and blkio are useing ID. (To support complicated hierarchy walk.)
> ^^^^ typo
> >
> > ID will be used in mem cgroup's ->create(), later.
> >
> > Note:
> > If someone changes rules of css allocation, ID allocation should be moved too.
> >
>
> What rules? could you please elaborate?
>
See Paul Menage's mail. He said "allocating css object under kernel/cgroup.c
will make kernel/cgroup.c cleaner." But it seems too big for my purpose.

> Seems cleaner, may be we need to update cgroups.txt?

Hmm. will look into.

Thanks,
-Kame

>
> --
> Three Cheers,
> Balbir
>
> --
> To unsubscribe, send a message with 'unsubscribe linux-mm' in
> the body to majordomo@xxxxxxxxxx For more info on Linux MM,
> see: http://www.linux-mm.org/ .
> Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
>
>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/