Minchan Kim <minchan.kim@xxxxxxxxx> writes: > On Mon, Nov 8, 2010 at 7:14 AM, Johannes Weiner <hannes@xxxxxxxxxxx> wrote: >> For increasing and decreasing per-cpu cgroup usage counters it makes >> sense to use signed types, as single per-cpu values might go negative >> during updates. ÂBut this is not the case for only-ever-increasing >> event counters. >> >> All the counters have been signed 64-bit so far, which was enough to >> count events even with the sign bit wasted. >> >> The next patch narrows the usage counters type (on 32-bit CPUs, that >> is), though, so break out the event counters and make them unsigned >> words as they should have been from the start. >> >> Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx> > Reviewed-by: Minchan Kim <minchan.kim@xxxxxxxxx> Reviewed-by: Greg Thelen <gthelen@xxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href