Re: [PATCH v9 3/4] cgroups: allow a cgroup subsystem to reject a fork

From: Tejun Heo
Date: Tue Apr 14 2015 - 08:18:35 EST


On Tue, Apr 14, 2015 at 10:33:41AM +1000, Aleksa Sarai wrote:
> Hi Tejun,
> > Ummm... is this really necessary? Can't we do something like the
> > following?
> >
> > #define SUBSYS_TAG(tag) \
> > __##tag, \
> > tag = __##tag - 2,
> Is which part necessary? That's what TAG() does. I can remove the

The complex macros.

> UNUSED_IDENT() if you want, that was just to make sure you don't get clashes
> with other unused idents. COUNT() is so that we don't have to manually add
> CGROUP_<TAG>_COUNT for every tag we add.

Let's please do the simple thing. It just takes one two-liner macro.


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