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Message-ID: <2e5b2bc153b1e0cd61ff1ae67cb6acd289ddfa7f.1768834061.git.lorenzo.stoakes@oracle.com>
Date: Mon, 19 Jan 2026 14:48:52 +0000
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Jarkko Sakkinen <jarkko@...nel.org>,
Dave Hansen <dave.hansen@...ux.intel.com>,
Thomas Gleixner <tglx@...nel.org>, Ingo Molnar <mingo@...hat.com>,
Borislav Petkov <bp@...en8.de>, x86@...nel.org,
"H . Peter Anvin" <hpa@...or.com>, Arnd Bergmann <arnd@...db.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Dan Williams <dan.j.williams@...el.com>,
Vishal Verma <vishal.l.verma@...el.com>,
Dave Jiang <dave.jiang@...el.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Tvrtko Ursulin <tursulin@...ulin.net>,
Christian Koenig <christian.koenig@....com>,
Huang Rui <ray.huang@....com>, Matthew Auld <matthew.auld@...el.com>,
Matthew Brost <matthew.brost@...el.com>,
Alexander Viro <viro@...iv.linux.org.uk>,
Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>,
Benjamin LaHaise <bcrl@...ck.org>, Gao Xiang <xiang@...nel.org>,
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Theodore Ts'o <tytso@....edu>,
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Muchun Song <muchun.song@...ux.dev>,
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Tony Luck <tony.luck@...el.com>,
Reinette Chatre <reinette.chatre@...el.com>,
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Rasmus Villemoes <linux@...musvillemoes.dk>, linux-sgx@...r.kernel.org,
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Jason Gunthorpe <jgg@...dia.com>
Subject: [PATCH 01/12] mm: rename vma_flag_test/set_atomic() to vma_test/set_atomic_flag()
In order to stay consistent between functions which manipulate a vm_flags_t
argument of the form of vma_flags_...() and those which manipulate a
VMA (in this case the flags field of a VMA), rename
vma_flag_[test/set]_atomic() to vma_[test/set]_atomic_flag().
This lays the groundwork for adding VMA flag manipulation functions in a
subsequent commit.
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
---
include/linux/mm.h | 13 +++++--------
mm/khugepaged.c | 2 +-
mm/madvise.c | 2 +-
3 files changed, 7 insertions(+), 10 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index a18ade628c8e..25f7679df55c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -987,8 +987,7 @@ static inline void vm_flags_mod(struct vm_area_struct *vma,
__vm_flags_mod(vma, set, clear);
}
-static inline bool __vma_flag_atomic_valid(struct vm_area_struct *vma,
- vma_flag_t bit)
+static inline bool __vma_atomic_valid_flag(struct vm_area_struct *vma, vma_flag_t bit)
{
const vm_flags_t mask = BIT((__force int)bit);
@@ -1003,8 +1002,7 @@ static inline bool __vma_flag_atomic_valid(struct vm_area_struct *vma,
* Set VMA flag atomically. Requires only VMA/mmap read lock. Only specific
* valid flags are allowed to do this.
*/
-static inline void vma_flag_set_atomic(struct vm_area_struct *vma,
- vma_flag_t bit)
+static inline void vma_set_atomic_flag(struct vm_area_struct *vma, vma_flag_t bit)
{
unsigned long *bitmap = ACCESS_PRIVATE(&vma->flags, __vma_flags);
@@ -1012,7 +1010,7 @@ static inline void vma_flag_set_atomic(struct vm_area_struct *vma,
if (!rwsem_is_locked(&vma->vm_mm->mmap_lock))
vma_assert_locked(vma);
- if (__vma_flag_atomic_valid(vma, bit))
+ if (__vma_atomic_valid_flag(vma, bit))
set_bit((__force int)bit, bitmap);
}
@@ -1023,10 +1021,9 @@ static inline void vma_flag_set_atomic(struct vm_area_struct *vma,
* This is necessarily racey, so callers must ensure that serialisation is
* achieved through some other means, or that races are permissible.
*/
-static inline bool vma_flag_test_atomic(struct vm_area_struct *vma,
- vma_flag_t bit)
+static inline bool vma_test_atomic_flag(struct vm_area_struct *vma, vma_flag_t bit)
{
- if (__vma_flag_atomic_valid(vma, bit))
+ if (__vma_atomic_valid_flag(vma, bit))
return test_bit((__force int)bit, &vma->vm_flags);
return false;
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 9f790ec34400..e4fe9144667a 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1749,7 +1749,7 @@ static bool file_backed_vma_is_retractable(struct vm_area_struct *vma)
* obtained on guard region installation after the flag is set, so this
* check being performed under this lock excludes races.
*/
- if (vma_flag_test_atomic(vma, VMA_MAYBE_GUARD_BIT))
+ if (vma_test_atomic_flag(vma, VMA_MAYBE_GUARD_BIT))
return false;
return true;
diff --git a/mm/madvise.c b/mm/madvise.c
index 4bf4c8c38fd3..98d0fddcc165 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -1142,7 +1142,7 @@ static long madvise_guard_install(struct madvise_behavior *madv_behavior)
* acquire an mmap/VMA write lock to read it. All remaining readers may
* or may not see the flag set, but we don't care.
*/
- vma_flag_set_atomic(vma, VMA_MAYBE_GUARD_BIT);
+ vma_set_atomic_flag(vma, VMA_MAYBE_GUARD_BIT);
/*
* If anonymous and we are establishing page tables the VMA ought to
--
2.52.0
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