linux-kernel - [PATCH 36/45] fs/proc: Make clear_refs_test

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Message-ID: <20240704043132.28501-37-osalvador@suse.de>
Date: Thu,  4 Jul 2024 06:31:23 +0200
From: Oscar Salvador <osalvador@...e.de>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	Peter Xu <peterx@...hat.com>,
	Muchun Song <muchun.song@...ux.dev>,
	David Hildenbrand <david@...hat.com>,
	SeongJae Park <sj@...nel.org>,
	Miaohe Lin <linmiaohe@...wei.com>,
	Michal Hocko <mhocko@...e.com>,
	Matthew Wilcox <willy@...radead.org>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Oscar Salvador <osalvador@...e.de>
Subject: [PATCH 36/45] fs/proc: Make clear_refs_test_walk skip hugetlb vmas

Skip hugetlb vmas as we are not interested in those.

Signed-off-by: Oscar Salvador <osalvador@...e.de>
---
 fs/proc/task_mmu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 5df17b7cfe6c..df94f2093588 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -1579,6 +1579,9 @@ static int clear_refs_test_walk(unsigned long start, unsigned long end,
 	struct clear_refs_private *cp = walk->private;
 	struct vm_area_struct *vma = walk->vma;
 
+	if (is_vm_hugetlb_page(vma))
+		return 1;
+
 	if (vma->vm_flags & VM_PFNMAP)
 		return 1;
 
-- 
2.26.2