On Thu, Apr 22, 2010 at 01:36:30PM -0500, Anthony Liguori wrote: > I think we got to the point where there was general agreement on the > usefulness of lock=read|write but where there was still some contention > was on this whole notion of lock=exclusive|shared. > > I believe Richard Jones was driving the original patch and his use case > was libguestfs which really wants lock=exclusive (sort of). But IMHO, > it's very confusing compared to lock=read|write.
>From the libguestfs point of view, any sort of locking would be preferable to the current situation. If someone wants to run with the patch, I posted several versions and there was a lot of discussion on qemu-devel in Nov/Dec 2009, starting with this message: Subject: [Qemu-devel] [PATCH] Disk image shared and exclusive locks. Message-ID: <20091204165301.ga4...@amd.home.annexia.org> Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones New in Fedora 11: Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 70 libraries supprt'd http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw
