Re: [Xen-devel] Suspend/Save a machine under HVM (questions for implementation in Win GPL PV driveres)

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 26/2/08 12:00, "James Harper" <james.harper@xxxxxxxxxxxxxxxx> wrote:

>> This doesn't happen with Linux I'm pretty sure, as accesses to a
> single
>> block are serialised at a higher level.
> 
> I think the higher level doesn't have visibility to this...
> 
> . Frontend sends A, B & C to Backend

What I mean is, Linux would not create such a set of requests A, B & C in
the first place. Linux will lock out the page from other I/Os when the first
read or write request is issued.

 -- Keir



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