Glauber Costa wrote: >> >> This lock is fairly annoying. What do you think about taking it in >> vcpu_run unconditionally and only dropping it while in guest mode? >> Most exits are mmu (or with npt, mmio) so they need to take it anyway. >> > Can't see the point. This is taken before updates to the wall clock, > not system time.
I mean in general, not related to wall clock. > [EMAIL PROTECTED] linux-2.6 (master)]$ git grep down_read.*slots_lock > arch/x86/kvm/ | wc -l > 16 We take the lock for read 16 times, could be narrowed down to probably once (with a drop and re-take around guest mode). -- Do not meddle in the internals of kernels, for they are subtle and quick to panic. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
