[looking for volunteers] [PATCH 2/2] Re: Temporarily delete old-style lock files
nicolas.s-dev at laposte.net
Wed Sep 7 20:43:20 BST 2011
On Tue, Aug 23, 2011 at 08:35:00PM +0200, Nicolas Sebrecht wrote:
> On Mon, Aug 22, 2011 at 12:09:13PM +0200, Sebastian Spaeth wrote:
> > On Fri, 19 Aug 2011 18:35:23 +0200, Nicolas Sebrecht <nicolas.s-dev at laposte.net> wrote:
> > > > Doing all this without race conditions is something that will not be
> > > > trivial. The exploitable window will be quite small, but it will exist
> > > > unless we do really smart stuff.
> > >
> > > I'm not seeing possible race conditions in the above.
> > 1st we check for new-style locks. None there, next, we check for
> > old-style lock. But in the mean time, we could have another new-style
> > lock created, etc. Just locks of little places between testing for and
> > creating the various lock files which makes me a little nervous.
> You might check for the old-style lock before the new one. It should be
> just fine.
I'm promoting this topic to pu. It's a bit technical but very
interesting stuff which should be almost finished in its current state.
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