Andrew Morton wrote: > On Wed, 14 Mar 2007 12:07:14 -0700 Jeremy Fitzhardinge <[EMAIL PROTECTED]> > wrote: > > >> Subject: Add a sched_clock paravirt_op >> >> The tsc-based get_scheduled_cycles interface is not a good match for >> Xen's runstate accounting, which reports everything in nanoseconds. >> >> This patch replaces this interface with a sched_clock interface, which >> matches both Xen and VMI's requirements. >> >> In order to do this, we: >> 1. replace get_scheduled_cycles with sched_clock >> 2. hoist cycles_2_ns into a common header >> 3. update vmi accordingly >> >> One thing to note: because sched_clock is implemented as a weak function in >> kernel/sched.c, we must define a real function in order to override this weak >> binding. This means the usual paravirt_ops technique of using an inline >> function won't work in this case. >> > > include/asm/paravirt.h: In function 'paravirt_sched_clock': > include/asm/paravirt.h:281: warning: implicit declaration of function > 'PVOP_CALL0' > include/asm/paravirt.h:281: error: expected expression before 'unsigned' >
Sorry, I didn't intend for it to be picked up; it depends on stuff earlier in the patch series. I just wanted to check with the VMI folks that it works for them in principle. J - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/