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Yang Shi authored
Since commit bbddabe2 ("mm: filemap: only do access activations on reads"), mark_page_accessed() is called for reads only. But the idle flag is cleared by mark_page_accessed() so the idle flag won't get cleared if the page is write accessed only. Basically idle page tracking is used to estimate workingset size of workload, noticeable size of workingset might be missed if the idle flag is not maintained correctly. It seems good enough to just clear idle flag for write operations. Fixes: bbddabe2 ("mm: filemap: only do access activations on reads") Reported-by:
Gang Deng <gavin.dg@linux.alibaba.com> Signed-off-by:
Yang Shi <yang.shi@linux.alibaba.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Reviewed-by:
Shakeel Butt <shakeelb@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Rik van Riel <riel@surriel.com> Link: http://lkml.kernel.org/r/1593020612-13051-1-git-send-email-yang.shi@linux.alibaba.comSigned-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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