Hi SeongJae,
On 6/21/2022 1:27 AM, SeongJae Park wrote:
Hi Baolin,
On Mon, 20 Jun 2022 10:34:42 +0800 Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx> wrote:
The huge_ptep_set_access_flags() can not make the huge pte old according
to the discussion [1], that means we will always mornitor the young state
of the hugetlb though we stopped accessing the hugetlb, as a result DAMON
will get inaccurate accessing statistics.
So changing to use set_huge_pte_at() to make the huge pte old to fix this
issue.
[1] https://lore.kernel.org/all/Yqy97gXI4Nqb7dYo@xxxxxxx/
Fixes: 49f4203aae06 ("mm/damon: add access checking for hugetlb pages")
As the commit has merged in from v5.17, I guess it would be better to do below?
Cc: <stable@xxxxxxxxxxxxxxx>
Yes, thanks for reminding. Hope Andrew can help to add the stable tag
when picking up this patch.
Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Other than that,
Reviewed-by: SeongJae Park <sj@xxxxxxxxxx>
Thanks.
