Re: [PATCH 1/1] kernel/pid.c: Masking the flag out to get theactual value.

From: Andrew Morton
Date: Tue Jun 11 2013 - 21:29:06 EST

On Tue, 11 Jun 2013 18:16:50 -0700 ebiederm@xxxxxxxxxxxx (Eric W. Biederman) wrote:

> > Hopefully we can fix this one by adding the missing comment.
> Perhaps we can fix this one by having people who care read the code and
> think about what it means?

As is obvious from this thread, that approach isn't working.

> Seriously if we are adding pids/processes in
> the pid namespace why would to clean up the pid namespace?

A good way to communicate the design would be to describe the semantics
of PIDNS_HASH_ADDING, at its definition site.

[idly wonders what the heck pid_namespace.level and pid.level do, sigh]
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