linux-kernel - [PATCH v2 08/20] mm/rmap: pass vma to __folio_add

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Message-ID: <20250224165603.1434404-9-david@redhat.com>
Date: Mon, 24 Feb 2025 17:55:50 +0100
From: David Hildenbrand <david@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: linux-doc@...r.kernel.org,
	cgroups@...r.kernel.org,
	linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org,
	linux-api@...r.kernel.org,
	David Hildenbrand <david@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Matthew Wilcox (Oracle)" <willy@...radead.org>,
	Tejun Heo <tj@...nel.org>,
	Zefan Li <lizefan.x@...edance.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Koutný <mkoutny@...e.com>,
	Jonathan Corbet <corbet@....net>,
	Andy Lutomirski <luto@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Muchun Song <muchun.song@...ux.dev>,
	"Liam R. Howlett" <Liam.Howlett@...cle.com>,
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
	Vlastimil Babka <vbabka@...e.cz>,
	Jann Horn <jannh@...gle.com>
Subject: [PATCH v2 08/20] mm/rmap: pass vma to __folio_add_rmap()

We'll need access to the destination MM when modifying the mapcount
large folios next. So pass in the VMA.

Signed-off-by: David Hildenbrand <david@...hat.com>
---
 mm/rmap.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/mm/rmap.c b/mm/rmap.c
index bcec8677f68df..8a7d023b02e0c 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1242,8 +1242,8 @@ int pfn_mkclean_range(unsigned long pfn, unsigned long nr_pages, pgoff_t pgoff,
 }
 
 static __always_inline unsigned int __folio_add_rmap(struct folio *folio,
-		struct page *page, int nr_pages, enum rmap_level level,
-		int *nr_pmdmapped)
+		struct page *page, int nr_pages, struct vm_area_struct *vma,
+		enum rmap_level level, int *nr_pmdmapped)
 {
 	atomic_t *mapped = &folio->_nr_pages_mapped;
 	const int orig_nr_pages = nr_pages;
@@ -1411,7 +1411,7 @@ static __always_inline void __folio_add_anon_rmap(struct folio *folio,
 
 	VM_WARN_ON_FOLIO(!folio_test_anon(folio), folio);
 
-	nr = __folio_add_rmap(folio, page, nr_pages, level, &nr_pmdmapped);
+	nr = __folio_add_rmap(folio, page, nr_pages, vma, level, &nr_pmdmapped);
 
 	if (likely(!folio_test_ksm(folio)))
 		__page_check_anon_rmap(folio, page, vma, address);
@@ -1582,7 +1582,7 @@ static __always_inline void __folio_add_file_rmap(struct folio *folio,
 
 	VM_WARN_ON_FOLIO(folio_test_anon(folio), folio);
 
-	nr = __folio_add_rmap(folio, page, nr_pages, level, &nr_pmdmapped);
+	nr = __folio_add_rmap(folio, page, nr_pages, vma, level, &nr_pmdmapped);
 	__folio_mod_stat(folio, nr, nr_pmdmapped);
 
 	/* See comments in folio_add_anon_rmap_*() */
-- 
2.48.1