Messages in this thread | | | Date | Mon, 8 Nov 2010 07:56:43 +0900 | Subject | Re: [patch 1/4] memcg: use native word to represent dirtyable pages | From | Minchan Kim <> |
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On Mon, Nov 8, 2010 at 7:14 AM, Johannes Weiner <hannes@cmpxchg.org> wrote: > The memory cgroup dirty info calculation currently uses a signed > 64-bit type to represent the amount of dirtyable memory in pages. > > This can instead be changed to an unsigned word, which will allow the > formula to function correctly with up to 160G of LRU pages on a 32-bit > system, assuming 4k pages. That should be plenty even when taking > racy folding of the per-cpu counters into account. > > This fixes a compilation error on 32-bit systems as this code tries to > do 64-bit division. > > Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> > Reported-by: Dave Young <hidave.darkstar@gmail.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
-- Kind regards, Minchan Kim -- 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/
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