Messages in this thread |  | | | Date | Thu, 20 Jan 2011 17:12:46 +0530 | | From | Srivatsa Vaddagiri <> | | Subject | Re: [PATCH 2/3] kvm hypervisor : Add hypercalls to support pv-ticketlock |
| |
On Wed, Jan 19, 2011 at 10:53:52AM -0800, Jeremy Fitzhardinge wrote: > > The reason for wanting this should be clear I guess, it allows PI. > > Well, if we can expand the spinlock to include an owner, then all this > becomes moot...
How so? Having an owner will not eliminate the need for pv-ticketlocks afaict. We still need a mechanism to reduce latency in scheduling the next thread-in-waiting, which is achieved by your patches.
- vatsa
|  |