linux-kernel - Re: [PATCH 2/2] Replace pid_t in autofs with struct pid reference

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Date:	Fri, 23 Mar 2007 00:06:20 +0900
From:	Ian Kent <raven@...maw.net>
To:	"Serge E. Hallyn" <serue@...ibm.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Cedric Le Goater <clg@...ibm.com>, sukadev@...ibm.com,
	Andrew Morton <akpm@...l.org>,
	Dave Hansen <haveblue@...ibm.com>,
	Herbert Poetzl <herbert@...hfloor.at>,
	containers@...ts.osdl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] Replace pid_t in autofs with struct pid reference

On Thu, 2007-03-22 at 08:31 -0500, Serge E. Hallyn wrote:
> > > 
> > > From: "Serge E. Hallyn" <serue@...ibm.com>
> > > Subject: [PATCH] autofs: prevent pid wraparound in waitqs
> > > 
> > > Instead of storing pid numbers for waitqs, store references
> > > to struct pids.  Also store a reference to the mounter's pid
> > > namespace in the autofs4 sb info so that pid numbers for
> > > mount miss and expiry msgs can send the pid# in the mounter's
> > > pidns.
> > 
> > I think this amounts to what I suggested in my previous replies.
> > Hopefully my comments are enough to clear up any questions on
> > correctness of this approach.
> > 
> > Sorry to be a pain but I'm having a little trouble reviewing the patch
> > because I'm not clear on where the code to handle the automount process
> > group (so called oz_pgrp), from the first patch, fits in with this.
> 
> It also has pidspace infrastructure code in it, so I think we will just
> hold off on this until we have that infrastructure merged into the
> pidspace code and into -mm.  Then we can send you a single, more concise
> patch.

OK great.

I'll have a close look through the code and it's related calls when I
get hold of a complete patch. That will be much easier and mistakes will
be less likely.

Ian


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