On Wed, 9 Feb 2011 12:01:49 +0100 Johannes Weiner <hannes@xxxxxxxxxxx> wrote: > Hi, > > this patch set converts the memcg charge and uncharge paths to operate > on multiples of pages instead of bytes. It already was a good idea > before, but with the merge of THP we made a real mess by specifying > huge pages alternatingly in bytes or in number of regular pages. > > If I did not miss anything, this should leave only res_counter and > user-visible stuff in bytes. The ABI probably won't change, so next > up is converting res_counter to operate on page quantities. > Hmm, I think this should be done but think this should be postphoned, too. Because, IIUC, some guys will try to discuss charging against kernel objects in the next mm-summit. IMHO, it will be done against PAGE not against Object even if we do kernel object accouting. So this patch is okay for me. But I think it's better to go ahead after we confirm the way we go. How do you think ? Anyway, I welcome this patch. Thanks, -Kame > Hannes > > include/linux/sched.h | 4 +- > mm/memcontrol.c | 157 ++++++++++++++++++++++++------------------------- > 2 files changed, 78 insertions(+), 83 deletions(-) > -- 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 internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>