[Devel] [RFC PATCH] fs: call_usermodehelper_root helper introduced

[Eric W. Biederman]

ebiederm at xmission.com (Eric W. Biederman) writes:

> I am missing a lot of context here and capturing the context of a
> process at time time we mount the filesystem and reconstituing it in
> call user mode helper seems like something we could do.

If we want to do something like this the only sane thing I can see is to
have a per container version of kthread call it uthread.  That the user
mode helper code would use to launch a new process.

Anything else and I expect we will be tearing our hair out for the rest
of our lives with weird corner cases or unexpected semantics.

At first glace I would exepct uthread to be per pid namespace in
implementation.

Eric