Re: [ckrm-tech] [RFC][PATCH 3/7] UBC: ub context and inheritance

[Kirill Korotaev]

Chandra Seetharaman wrote:
> On Wed, 2006-08-16 at 19:38 +0400, Kirill Korotaev wrote:
>
> > Contains code responsible for setting UB on task,
> > it's inheriting and setting host context in interrupts.
> >
> > Task references three beancounters:
> >  1. exec_ub  current context. all resources are
> >              charged to this beancounter.
> >  2. task_ub  beancounter to which task_struct is
> >              charged itself.
>
>
> I do not see why task_ub is needed ? i do not see it being used
> anywhere.
it is used to charge task itself. will be heavily used in next patch set
adding "numproc" UBC parameter.

> >  3. fork_sub beancounter which is inherited by
> >              task's children on fork
>
>
> > From other emails it looks like renaming fork/exec to be real/effective
> will be easier to understand.
there is no "real". exec_ub is effective indeed,
but fork_sub is the one to inherit on fork().

Kirill

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