On Mon, Apr 22, 2013 at 3:56 PM, Rik van Riel <riel@xxxxxxxxxx> wrote: > On 04/22/2013 03:49 PM, Peter Zijlstra wrote: >> >> On Mon, 2013-04-22 at 08:52 -0400, Rik van Riel wrote: > > >>> If the native spin_lock code has been called already at >>> that time, the native code would still need to be modified >>> to increment the ticket number by 2, so we end up with a >>> compatible value in each spin lock's .tickets field, and >>> prevent a deadlock after we switch over to the paravirt >>> variant. >> >> >> I thought the stuff already made it upstream, but apparently not; the >> lastest posting I'm aware of is here: >> >> https://lkml.org/lkml/2012/5/2/105 >> >> That stuff changes the normal ticket increment as well.. > > > Jiannan, > > It looks like the patch above could make a good patch > 1 (or 2) in your patch series :) > > -- > All rights reversed Yes. I'm going to move my code, updated with Rik's suggestions, to paravirt ops based on Jeremy's patch. I'll post a new patch series soon. Thanks to everyone for the great feedback! --Jiannan -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
