Re: [PATCH V2] nommu: add anonymous page memcg accounting

["Steve Magnani" <steve@digidescorp.com>]

On Thu, 2010-10-21 at 09:08 +0900, KAMEZAWA Hiroyuki wrote:
> I myself can't maintain NOMMU kernel. So, please test every -rc1 when
> this patch merged. OK ?

It's reasonable to ask that features be tested every so often, and since the memory cgroup code seems to be 
changing relatively frequently it probably needs exercising more often. I can't commit to this, though - I 
don't know how much longer I'll be working with NOMMU kernels, and they are notoriously fragile. Any memory 
access bug that would cause an oops (or SEGV) in a "normal" kernel can cause subtle and almost impossible to 
debug behavior on a NOMMU system. For this reason I always try to work with "stable" kernels (recent threads 
debating the term notwithstanding)...so it would be a pretty far jump to a -rc1 kernel.

Is this a showstopper (in which case David's patch to make the CGROUP_MEM_RES_CTLR Kconfig option depend on MMU 
should be implemented), or should I post V3 of the patch that has Balbir's suggested change? 

Steve