Re: [Lse-tech] [PATCH] Process Notification (pnotify)

[Christoph H. <hc...@in...>]

On Wed, Sep 21, 2005 at 04:36:45PM -0500, Erik Jacobson wrote:
> What I propose here is Process Notification (pnotify).  This is derived from
> PAGG.  It's been re-worked to have some better documentation (below) and
> variable names that better reflect what is really happening.

This looks pretty cool, and to show how it's useful you could convert
a few of the fork/exec calls to less important subsystems (e.g. keys)
to this.

I don't think rwsem locking is apropinquate for what you're doing.  We need
to keep the overhead as low as possible in fork/exec/exit, and given how
infrequent modifications are this looks like a prime candidate for RCU.