linux-kernel - [PATCH v4 3/4] mm/damon: Convert damon_pa_mark_accessed_or

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Date:   Wed, 21 Dec 2022 10:08:47 -0800
From:   "Vishal Moola (Oracle)" <vishal.moola@...il.com>
To:     linux-mm@...ck.org
Cc:     damon@...ts.linux.dev, linux-kernel@...r.kernel.org,
        akpm@...ux-foundation.org, sj@...nel.org, willy@...radead.org,
        "Vishal Moola (Oracle)" <vishal.moola@...il.com>
Subject: [PATCH v4 3/4] mm/damon: Convert damon_pa_mark_accessed_or_deactivate() to use folios

This change replaces 2 calls to compound_head() from put_page() and 1 call
from mark_page_accessed() with one from page_folio(). This is in
preparation for the conversion of deactivate_page() to
folio_deactivate().

Signed-off-by: Vishal Moola (Oracle) <vishal.moola@...il.com>
Reviewed-by: SeongJae Park <sj@...nel.org>
Reviewed-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 mm/damon/paddr.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index ebd1905eed6f..884c8bf18b12 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -283,21 +283,23 @@ static inline unsigned long damon_pa_mark_accessed_or_deactivate(
 
 	for (addr = r->ar.start; addr < r->ar.end; addr += PAGE_SIZE) {
 		struct page *page = damon_get_page(PHYS_PFN(addr));
+		struct folio *folio;
 
 		if (!page)
 			continue;
+		folio = page_folio(page);
 
-		if (damos_pa_filter_out(s, page)) {
-			put_page(page);
+		if (damos_pa_filter_out(s, &folio->page)) {
+			folio_put(folio);
 			continue;
 		}
 
 		if (mark_accessed)
-			mark_page_accessed(page);
+			folio_mark_accessed(folio);
 		else
-			deactivate_page(page);
-		put_page(page);
-		applied++;
+			deactivate_page(&folio->page);
+		folio_put(folio);
+		applied += folio_nr_pages(folio);
 	}
 	return applied * PAGE_SIZE;
 }
-- 
2.38.1