mm/damon: Convert damon_pa_mkold() to use a folio

Ensure that we're passing the entire folio to rmap_walk().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index cb45d49..699ebfd 100644 (file)
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -33,6 +33,7 @@ static bool __damon_pa_mkold(struct page *page, struct vm_area_struct *vma,
 
 static void damon_pa_mkold(unsigned long paddr)
 {
+       struct folio *folio;
        struct page *page = damon_get_page(PHYS_PFN(paddr));
        struct rmap_walk_control rwc = {
                .rmap_one = __damon_pa_mkold,
@@ -42,23 +43,24 @@ static void damon_pa_mkold(unsigned long paddr)
 
        if (!page)
                return;
+       folio = page_folio(page);
 
-       if (!page_mapped(page) || !page_rmapping(page)) {
-               set_page_idle(page);
+       if (!folio_mapped(folio) || !folio_raw_mapping(folio)) {
+               folio_set_idle(folio);
                goto out;
        }
 
-       need_lock = !PageAnon(page) || PageKsm(page);
-       if (need_lock && !trylock_page(page))
+       need_lock = !folio_test_anon(folio) || folio_test_ksm(folio);
+       if (need_lock && !folio_trylock(folio))
                goto out;
 
-       rmap_walk(page, &rwc);
+       rmap_walk(&folio->page, &rwc);
 
        if (need_lock)
-               unlock_page(page);
+               folio_unlock(folio);
 
 out:
-       put_page(page);
+       folio_put(folio);
 }
 
 static void __damon_pa_prepare_access_check(struct damon_ctx *ctx,