linux-kernel - [PATCH] mm/mmap: make accountable

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Message-Id: <20240407063843.804274-1-gehao@kylinos.cn>
Date: Sun,  7 Apr 2024 14:38:43 +0800
From: Hao Ge <gehao@...inos.cn>
To: akpm@...ux-foundation.org,
	Liam.Howlett@...cle.com,
	vbabka@...e.cz,
	lstoakes@...il.com,
	willy@...radead.org
Cc: linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	gehao618@....com,
	Hao Ge <gehao@...inos.cn>
Subject: [PATCH] mm/mmap: make accountable_mapping return bool

accountable_mapping can return bool,so we change it

Signed-off-by: Hao Ge <gehao@...inos.cn>
---
 mm/mmap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index ac219f1689e0..e37dd5c9ffee 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1549,14 +1549,14 @@ bool vma_wants_writenotify(struct vm_area_struct *vma, pgprot_t vm_page_prot)
  * We account for memory if it's a private writeable mapping,
  * not hugepages and VM_NORESERVE wasn't set.
  */
-static inline int accountable_mapping(struct file *file, vm_flags_t vm_flags)
+static inline bool accountable_mapping(struct file *file, vm_flags_t vm_flags)
 {
 	/*
 	 * hugetlb has its own accounting separate from the core VM
 	 * VM_HUGETLB may not be set yet so we cannot check for that flag.
 	 */
 	if (file && is_file_hugepages(file))
-		return 0;
+		return false;
 
 	return (vm_flags & (VM_NORESERVE | VM_SHARED | VM_WRITE)) == VM_WRITE;
 }
-- 
2.25.1