On Tue, Jul 12, 2011 at 12:44:17PM +0300, Avi Kivity wrote: > On 07/12/2011 12:41 PM, Joerg Roedel wrote: >> > Using TIF_bits sounds like a much better solution for this, wakeups are >> > really rather expensive and its best to avoid extra if at all possible. >> >> I would rather vote for Avi's solution too. Such a functionality is very >> helpful for LWP-perf integration as well (because we need a way to call >> do_mmap for a task != current). >> > > It's not needed for that. See use_mm() (caller must be a kernel thread). But in our case the caller would be the process that wants to count, not a kernel thread. Joerg -- 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
