On Mon, 2013-01-28 at 20:03 +0100, Frederic Weisbecker wrote: > Ingo, > > Please pull the new full dynticks cputime accounting code that > can be found at: > > git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git > tags/full-dynticks-cputime-for-mingo > > My last concern is the dependency on CONFIG_64BIT. We rely on cputime_t > being u64 for reasonable nanosec granularity implementation. And therefore > we need a single instruction fetch to read kernel cpustat for atomicity > requirement against concurrent incrementation, which only 64 bit archs > can provide. > > It's probably no big deal to solve this issue. What we need is simply some > atomic accessors. > > There is just no emergency though as this new option depends on the context > tracking subsystem that only x86-64 (and soon ppc64) implements yet. And > this set is complex enough already. I think we can deal with that later.
I've ran these through some basic tests and I don't see any issues. But why did you drop the 'comment' patch that you had in v6? Acked-by: Steven Rostedt <rost...@goodmis.org> -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
