Re: [PATCH v2 06/11] memcg: kmem controller infrastructure

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On Wed 15-08-12 18:27:45, Glauber Costa wrote:
> 
> >>
> >> I see now, you seem to be right.
> > 
> > No I am not because it seems that I am really blind these days...
> > We were doing this in mem_cgroup_do_charge for ages:
> > 	if (!(gfp_mask & __GFP_WAIT))
> >                 return CHARGE_WOULDBLOCK;
> > 
> > /me goes to hide and get with further feedback with a clean head.
> > 
> > Sorry about that.
> > 
> I am as well, since I went to look at mem_cgroup_do_charge() and missed
> that.

I thought we are not doing atomic allocations in user pages accounting
but I was obviously wrong because at least shmem uses atomic
allocations for ages.

> Do you have any other concerns specific to this patch ?

I understood you changed also handle thingy. So the patch should be
correct.
Do you plan to send an updated version?

-- 
Michal Hocko
SUSE Labs
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