linux-kernel - [PATCH 4/5] khugepage: Replace lru_cache_add() with folio_add

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20221101175326.13265-5-vishal.moola@gmail.com>
Date:   Tue,  1 Nov 2022 10:53:25 -0700
From:   "Vishal Moola (Oracle)" <vishal.moola@...il.com>
To:     linux-mm@...ck.org
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        akpm@...ux-foundation.org, willy@...radead.org, miklos@...redi.hu,
        "Vishal Moola (Oracle)" <vishal.moola@...il.com>
Subject: [PATCH 4/5] khugepage: Replace lru_cache_add() with folio_add_lru()

Replaces some calls with their folio equivalents. This is in preparation
for the removal of lru_cache_add(). This replaces 3 calls to
compound_head() with 1.

Signed-off-by: Vishal Moola (Oracle) <vishal.moola@...il.com>
---
 mm/khugepaged.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 4734315f7940..e432d5279043 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1970,6 +1970,7 @@ static int collapse_file(struct mm_struct *mm, unsigned long addr,
 
 	if (result == SCAN_SUCCEED) {
 		struct page *page, *tmp;
+		struct folio *folio;
 
 		/*
 		 * Replacing old pages with new one has succeeded, now we
@@ -1997,11 +1998,13 @@ static int collapse_file(struct mm_struct *mm, unsigned long addr,
 			index++;
 		}
 
-		SetPageUptodate(hpage);
-		page_ref_add(hpage, HPAGE_PMD_NR - 1);
+		folio = page_folio(hpage);
+		folio_mark_uptodate(folio);
+		folio_ref_add(folio, HPAGE_PMD_NR - 1);
+
 		if (is_shmem)
-			set_page_dirty(hpage);
-		lru_cache_add(hpage);
+			folio_mark_dirty(folio);
+		folio_add_lru(folio);
 
 		/*
 		 * Remove pte page tables, so we can re-fault the page as huge.
-- 
2.38.1