Re: [libvirt] [PATCH 00/13] More refactoring of QEMU driver objects & locking
On Wed, Jan 16, 2013 at 02:06:11PM +0000, Daniel P. Berrange wrote:
This series does more general refactoring to help in the goal of
killing
the big QEMU driver lock. There are 3 key changes in this series
- Isolating all QEMU configuration parameters in one struct.
- Making virDomainObjList self-locking
- Add dedicated locking to PCI/USB device lists
There are all the really hard bits of the QEMU locking. As can be seen
from the last patch there is still more work to be done before the QEMU
driver lock can be said to be truely dead, but this is less critical.
Oh and the motivation for doing this work now is that it is a pre-requisite
to the role based access control patches. I realized that those patches
would have required holding the QEMU driver lock in many more places making
concurrency much worse.
Daniel
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