Messages in this thread | | | Subject | Re: [ckrm-tech] [RFC][PATCH 5/7] UBC: kernel memory accounting (core) | From | Rohit Seth <> | Date | Thu, 17 Aug 2006 09:31:48 -0700 |
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On Wed, 2006-08-16 at 12:59 -0700, Dave Hansen wrote: > On Wed, 2006-08-16 at 12:15 -0700, Rohit Seth wrote: > > My preference would be to have container (I keep on saying container, > > but resource beancounter) pointer embeded in task, mm(not sure), > > address_space and anon_vma structures. > > Hmm. If we can embed it in the mm, then we can get there from any given > anon_vma (or any pte for that matter). Here's a little prototype for > doing just that: > > http://www.sr71.net/patches/2.6.18/2.6.18-rc4-mm1-lxc1/broken-out/modify-lru-walk.patch > > See file/anon_page_has_naughty_cpuset(). Anybody see any basic problems > with doing it that way? > > One trick with putting it in an mm is that we don't have a direct > relationship between processes and mm's. We could also potentially have > two different threads of a process in two different accounting contexts. > But, that might be as simple to fix as disallowing things that share mms > from being in different accounting contexts, unless you unshare the mm.
But anon_vmas could be shared across different processes (with different mms).
-rohit
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