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    SubjectRe: [PATCH 05/11] Add a __GFP_KMEMCG flag
    On Tue, 26 Jun 2012, Glauber Costa wrote:

    > > > >This flag is used to indicate to the callees that this allocation will be
    > > > >serviced to the kernel. It is not supposed to be passed by the callers
    > > > >of kmem_cache_alloc, but rather by the cache core itself.
    > > > >
    > > Not sure what "serviced to the kernel" means, does this mean that the
    > > memory will not be accounted for to the root memcg?
    > >
    > In this context, it means that is a kernel allocation, not a userspace one
    > (but in process context, of course), *and* it is to be accounted a
    > specific memcg.
    >

    Ah, that makes sense. I think it would help if this was included in the
    changelog as well as a specifying that it is accounted to current's memcg
    at the time of the allocation in a comment in the code.


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