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linux/mm/damon
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Baolin Wang ed1523a895 mm/damon: use set_huge_pte_at() to make huge pte old 
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@arm.com/

Link: https://lkml.kernel.org/r/1655692482-28797-1-git-send-email-baolin.wang@linux.alibaba.com
Fixes: 49f4203aae ("mm/damon: add access checking for hugetlb pages")
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Acked-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
History 2022-07-03 15:42:32 -07:00
..
core-test.h mm/damon/core-test: add a kunit test case for ops registration 2022-04-29 14:37:00 -07:00
core.c mm/damon/vaddr: move 'damon_set_regions()' to core 2022-05-13 07:20:08 -07:00
dbgfs-test.h mm/damon/dbgfs-test: fix is_target_id() change 2022-03-22 15:57:12 -07:00
dbgfs.c mm/damon/core: allow non-exclusive DAMON start/stop 2022-03-22 15:57:13 -07:00
Kconfig mm/damon: implement a minimal stub for sysfs-based DAMON interface 2022-03-22 15:57:13 -07:00
Makefile mm/damon: implement a minimal stub for sysfs-based DAMON interface 2022-03-22 15:57:13 -07:00
ops-common.c mm: damon: use HPAGE_PMD_SIZE 2022-05-19 14:08:55 -07:00
ops-common.h mm/damon: rename damon_primitives to damon_operations 2022-03-22 15:57:12 -07:00
paddr.c mm: damon: use HPAGE_PMD_SIZE 2022-05-19 14:08:55 -07:00
reclaim.c mm/damon/reclaim: schedule 'damon_reclaim_timer' only after 'system_wq' is initialized 2022-06-16 19:11:30 -07:00
sysfs.c mm/damon/sysfs: support online inputs update 2022-05-13 07:20:09 -07:00
vaddr-test.h mm/damon/vaddr: remove damon_va_apply_three_regions() 2022-05-13 07:20:08 -07:00
vaddr.c mm/damon: use set_huge_pte_at() to make huge pte old 2022-07-03 15:42:32 -07:00