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

Rohit Seth
2006-08-17T17:03:48Z

On Thu, 2006-08-17 at 17:27 +0400, Kirill Korotaev wrote:
> > If I'm reading this patch right then seems like you are making page
> > allocations to fail w/o (for example) trying to purge some pages from
> > the page cache belonging to this container. Or is that reclaim going to
> > come later?
>
> charged kernel objects can't be _reclaimed_. how do you propose
> to reclaim tasks page tables or files or task struct or vma or etc.?

I agree that kernel objects cann't be reclaimed easily. But what you
are proposing is also not right. Returning failure w/o doing any
reclaim on pages (that are reclaimable) is not useful. And this is why
I asked, is this change going to be part of next set of patches (as
current set of patches are only tracking kernel usage).

-rohit