Date: Wed, 18 Jun 2003 17:51:51 -0700
From: Greg KH <greg@kroah.com>
To: "Kevin P. Fleming" <kpfleming@cox.net>
Cc: Oliver Neukum <oliver@neukum.org>, Robert Love <rml@tech9.net>,
       Patrick Mochel <mochel@osdl.org>, Andrew Morton <akpm@digeo.com>,
       sdake@mvista.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] udev enhancements to use kernel event queue
Message-ID: <20030619005151.GA3411@kroah.com>
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On Wed, Jun 18, 2003 at 05:42:45PM -0700, Kevin P. Fleming wrote:
> Greg KH wrote:
> 
> >But you also have to "hold" events for a bit of time in order to
> >determine that things are out of order, or we have a gap.  So a bit of
> >"complex" logic is in the works, but it's much less complex than if we
> >didn't have that sequence number.
> >
> 
> OK, so the important point here is that while you probably delay events 
> for a small amount of time (1-3 seconds maybe) to ensure that you aren't 
> processing steps out of order, it's not likely that userspace is going 
> hold event #1321 for an indefinite period of time just because it has 
> never seen event #1320.

Exactly.

> I can't wait to see this implementation; it's going to be interesting, 
> to say the least. However, without the sequence numbers, it would very 
> likely be impossible.

Hey, I still think my originally proposed version would have worked,
eventually... :)

greg k-h
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