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Subject: Re: Linux 2.4.21-pre3-ac4
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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On Sun, 2003-01-12 at 19:51, Benjamin Herrenschmidt wrote:
> What about PCI write posting ? How can we enforce the 400ns delay here ?

For i/o space it is ok as in*/out* are synchronous. For mmio right now I
don't know. I need to talk to Andre about that for SATA. I guess for the
PPC its going to be fun

> > 2.  The code is racey in some situations with a shared IRQ because we
> > may get an IRQ after we set the handler but before we send the command,
> > or implemnted the other way the command can complete before we set the
> > handler.
> 
> Yup, that's an old problem indeed.

Time for it to die....