| Date | Tue, 28 Mar 2023 14:50:21 -0400 | From | Johannes Weiner <> | Subject | Re: [PATCH v1 9/9] memcg: do not modify rstat tree for zero updates |
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On Tue, Mar 28, 2023 at 06:16:38AM +0000, Yosry Ahmed wrote: > In some situations, we may end up calling memcg_rstat_updated() with a > value of 0, which means the stat was not actually updated. An example is > if we fail to reclaim any pages in shrink_folio_list(). > > Do not add the cgroup to the rstat updated tree in this case, to avoid > unnecessarily flushing it. > > Signed-off-by: Yosry Ahmed <yosryahmed@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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