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mm/damon/vaddr: record appropriate folio size when the access is not found

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DAMON virtual address spaces monitoring operations set doesn't set folio
size of the access checked address if access is not found.  It could
result in unnecessary and inefficient repeated check.  Appropriately set
the size regardless of access check result.

Link: https://lkml.kernel.org/r/20230109213335.62525-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2023-01-09 21:33:32 +00:00 committed by Andrew Morton
parent 18fd73dbe5
commit 7477d7560c
1 changed files with 6 additions and 9 deletions
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15
mm/damon/vaddr.c
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@ -452,10 +452,9 @@ static int damon_young_pmd_entry(pmd_t *pmd, unsigned long addr,
goto huge_out;
if (pmd_young(*pmd) || !folio_test_idle(folio) ||
mmu_notifier_test_young(walk->mm,
addr)) {
*priv->folio_sz = HPAGE_PMD_SIZE;
addr))
priv->young = true;
}
*priv->folio_sz = HPAGE_PMD_SIZE;
folio_put(folio);
huge_out:
spin_unlock(ptl);
@ -474,10 +473,9 @@ regular_page:
if (!folio)
goto out;
if (pte_young(*pte) || !folio_test_idle(folio) ||
mmu_notifier_test_young(walk->mm, addr)) {
*priv->folio_sz = folio_size(folio);
mmu_notifier_test_young(walk->mm, addr))
priv->young = true;
}
*priv->folio_sz = folio_size(folio);
folio_put(folio);
out:
pte_unmap_unlock(pte, ptl);
@ -504,10 +502,9 @@ static int damon_young_hugetlb_entry(pte_t *pte, unsigned long hmask,
folio_get(folio);
if (pte_young(entry) || !folio_test_idle(folio) ||
mmu_notifier_test_young(walk->mm, addr)) {
*priv->folio_sz = huge_page_size(h);
mmu_notifier_test_young(walk->mm, addr))
priv->young = true;
}
*priv->folio_sz = huge_page_size(h);
folio_put(folio);