Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core)

[Kirill Korotaev]

Rohit Seth wrote:
> On Thu, 2006-08-17 at 10:23 -0700, Dave Hansen wrote:
>
> > On Thu, 2006-08-17 at 10:16 -0700, Rohit Seth wrote:
> >
> > > > That said, it sure is simpler to implement, so I'm all for it!
> > >
> > > hmm, not sure why it is simpler.
> >
> > When you ask the question, "which container owns this page?", you don't
> > have to look far, 
>
>
> as in page->mapping->container for user land?
in case of anon_vma, page->mapping can be the same
for 2 pages beloning to different containers.

> > nor is it ambiguous in any way.  It is very strict,
> > and very straightforward.
>
> What additional ambiguity you have when inode or task structures have
> the required information.
inodes can belong to multiple containers and so do the pages.

Kirill
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