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xen-devel
Re: [Xen-devel] [PATCH] ioemu : add flush in ide_unplug_harddisks()
Stefano Stabellini writes ("Re: [Xen-devel] [PATCH] ioemu : add flush in
ide_unplug_harddisks()"):
> Tomonari Horikoshi wrote:
> > I think the "flush" is necessary.
> > When "ioemu ide device" changes into "vbd" by "ide_unplug_harddisks()".
>
> I don't think that calling bdrv_aio_flush is a good idea since it is
> asyncronous and right after the call we are going to close the device
> without waiting for completion.
Yes, bdrv_aio_flush is wrong I think.
This seems related to the discussion we had in January. As I wrote
in
http://lists.xensource.com/archives/html/xen-devel/2009-01/msg00165.html
it seems to me that the guest should know about be able to flush
for itself ? After all we implement the IDE flush cache command.
Ian.
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