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Subject[PATCH 1/6] mm/damon/vaddr: rename 'damon_young_walk_private->page_sz' to 'folio_sz'
Date
DAMON's virtual address space monitoring operations set is using folio
now. Rename 'damon_pa_access_chk_result->page_sz' to reflect the fact.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
mm/damon/vaddr.c | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 9d92c5eb3a1f..d6cb1fca1769 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -422,7 +422,8 @@ static void damon_va_prepare_access_checks(struct damon_ctx *ctx)
}

struct damon_young_walk_private {
- unsigned long *page_sz;
+ /* size of the folio for the access checked virtual memory address */
+ unsigned long *folio_sz;
bool young;
};

@@ -452,7 +453,7 @@ static int damon_young_pmd_entry(pmd_t *pmd, unsigned long addr,
if (pmd_young(*pmd) || !folio_test_idle(folio) ||
mmu_notifier_test_young(walk->mm,
addr)) {
- *priv->page_sz = HPAGE_PMD_SIZE;
+ *priv->folio_sz = HPAGE_PMD_SIZE;
priv->young = true;
}
folio_put(folio);
@@ -474,7 +475,7 @@ static int damon_young_pmd_entry(pmd_t *pmd, unsigned long addr,
goto out;
if (pte_young(*pte) || !folio_test_idle(folio) ||
mmu_notifier_test_young(walk->mm, addr)) {
- *priv->page_sz = PAGE_SIZE;
+ *priv->folio_sz = PAGE_SIZE;
priv->young = true;
}
folio_put(folio);
@@ -504,7 +505,7 @@ static int damon_young_hugetlb_entry(pte_t *pte, unsigned long hmask,

if (pte_young(entry) || !folio_test_idle(folio) ||
mmu_notifier_test_young(walk->mm, addr)) {
- *priv->page_sz = huge_page_size(h);
+ *priv->folio_sz = huge_page_size(h);
priv->young = true;
}

@@ -524,10 +525,10 @@ static const struct mm_walk_ops damon_young_ops = {
};

static bool damon_va_young(struct mm_struct *mm, unsigned long addr,
- unsigned long *page_sz)
+ unsigned long *folio_sz)
{
struct damon_young_walk_private arg = {
- .page_sz = page_sz,
+ .folio_sz = folio_sz,
.young = false,
};

@@ -547,18 +548,18 @@ static void __damon_va_check_access(struct mm_struct *mm,
struct damon_region *r, bool same_target)
{
static unsigned long last_addr;
- static unsigned long last_page_sz = PAGE_SIZE;
+ static unsigned long last_folio_sz = PAGE_SIZE;
static bool last_accessed;

/* If the region is in the last checked page, reuse the result */
- if (same_target && (ALIGN_DOWN(last_addr, last_page_sz) ==
- ALIGN_DOWN(r->sampling_addr, last_page_sz))) {
+ if (same_target && (ALIGN_DOWN(last_addr, last_folio_sz) ==
+ ALIGN_DOWN(r->sampling_addr, last_folio_sz))) {
if (last_accessed)
r->nr_accesses++;
return;
}

- last_accessed = damon_va_young(mm, r->sampling_addr, &last_page_sz);
+ last_accessed = damon_va_young(mm, r->sampling_addr, &last_folio_sz);
if (last_accessed)
r->nr_accesses++;

--
2.25.1
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