On 12/22/2011 03:10 AM, Deepak C Shetty wrote:
This introduces new attribute writeout with only supported value as immediate. This will be an optional attribute with no defaults. This helps specify whether to skip the host page cache.
When writeout is specified, meaning when writeout=immediate a writeback is explicitly initiated for the dirty pages in the host page cache as part of the guest file write operation.
Usage: <filesystem type='mount' accessmode='passthrough' writeout='immediate'> <source dir='/export/to/guest'/> <target dir='mount_tag'/> </filesystem>
I still don't like the proposed XML. We need to get consensus on where to put it, with my proposal being: <filesystem type='mount'> <driver type='path' write='immediate'/> <source dir='/export/to/guest'/> <target dir='mount_tag'/> </filesystem> -- Eric Blake eblake@redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org