> Actually, yes: in entry.S the ret_from_syscall path which calls schedule
> can be changed to pass a parameter indicating it is returning to userspace
> afterwards which would let schedule know the bump is not needed.
Hmm, what if we only boosted it based on something like this:
if (p->policy == SCHED_IDLE) {
weight = p->counter;
if (p->lock_depth >= 0 || signal_pending(p))
/* boost somehow ... */
}
(I'm writing the patch now :>)
Would it still make sense to only boost it in kernel space ?
Robert Love
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/