On Thu, Jun 12, 2014 at 04:48:41PM -0400, Waiman Long wrote: > I don't have a good understanding of the kernel alternatives mechanism.
I didn't either; I do now, cost me a whole day reading up on alternative/paravirt code patching. See the patches I just send out; I got the 'native' case with paravirt enabled to be one NOP worse than the native case without paravirt -- for queue_spin_unlock. The lock slowpath is several nops and some pointless movs more expensive. _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
