mm/damon/vaddr: convert hugetlb related functions to use a folio

Convert damon_hugetlb_mkold() and damon_young_hugetlb_entry() to
use a folio.

Link: https://lkml.kernel.org/r/20221230070849.63358-9-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index 29227b7..9d92c5e 100644 (file)
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -335,9 +335,9 @@ static void damon_hugetlb_mkold(pte_t *pte, struct mm_struct *mm,
 {
        bool referenced = false;
        pte_t entry = huge_ptep_get(pte);
-       struct page *page = pte_page(entry);
+       struct folio *folio = pfn_folio(pte_pfn(entry));
 
-       get_page(page);
+       folio_get(folio);
 
        if (pte_young(entry)) {
                referenced = true;
@@ -352,10 +352,10 @@ static void damon_hugetlb_mkold(pte_t *pte, struct mm_struct *mm,
 #endif /* CONFIG_MMU_NOTIFIER */
 
        if (referenced)
-               set_page_young(page);
+               folio_set_young(folio);
 
-       set_page_idle(page);
-       put_page(page);
+       folio_set_idle(folio);
+       folio_put(folio);
 }
 
 static int damon_mkold_hugetlb_entry(pte_t *pte, unsigned long hmask,
@@ -490,7 +490,7 @@ static int damon_young_hugetlb_entry(pte_t *pte, unsigned long hmask,
 {
        struct damon_young_walk_private *priv = walk->private;
        struct hstate *h = hstate_vma(walk->vma);
-       struct page *page;
+       struct folio *folio;
        spinlock_t *ptl;
        pte_t entry;
 
@@ -499,16 +499,16 @@ static int damon_young_hugetlb_entry(pte_t *pte, unsigned long hmask,
        if (!pte_present(entry))
                goto out;
 
-       page = pte_page(entry);
-       get_page(page);
+       folio = pfn_folio(pte_pfn(entry));
+       folio_get(folio);
 
-       if (pte_young(entry) || !page_is_idle(page) ||
+       if (pte_young(entry) || !folio_test_idle(folio) ||
            mmu_notifier_test_young(walk->mm, addr)) {
                *priv->page_sz = huge_page_size(h);
                priv->young = true;
        }
 
-       put_page(page);
+       folio_put(folio);
 
 out:
        spin_unlock(ptl);