linux-kernel - [PATCH RFC v2 13/29] mm: Add __PAGEFLAG

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Message-ID: <20250110-asi-rfc-v2-v2-13-8419288bc805@google.com>
Date: Fri, 10 Jan 2025 18:40:39 +0000
From: Brendan Jackman <jackmanb@...gle.com>
To: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
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	Brendan Jackman <jackmanb@...gle.com>
Subject: [PATCH RFC v2 13/29] mm: Add __PAGEFLAG_FALSE

__PAGEFLAG_FALSE is a non-atomic equivalent of PAGEFLAG_FALSE.

Checkpatch-args: --ignore=COMPLEX_MACRO
Signed-off-by: Brendan Jackman <jackmanb@...gle.com>
---
 include/linux/page-flags.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index cc839e4365c18223e68c35efd0f67e7650708e8b..7ee9a0edc6d21708fc93dfa8913dc1ae9478dee3 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -484,6 +484,10 @@ static inline int Page##uname(const struct page *page) { return 0; }
 FOLIO_SET_FLAG_NOOP(lname)						\
 static inline void SetPage##uname(struct page *page) {  }
 
+#define __SETPAGEFLAG_NOOP(uname, lname)					\
+static inline void __folio_set_##lname(struct folio *folio) { }		\
+static inline void __SetPage##uname(struct page *page) {  }
+
 #define CLEARPAGEFLAG_NOOP(uname, lname)				\
 FOLIO_CLEAR_FLAG_NOOP(lname)						\
 static inline void ClearPage##uname(struct page *page) {  }
@@ -506,6 +510,9 @@ static inline int TestClearPage##uname(struct page *page) { return 0; }
 #define TESTSCFLAG_FALSE(uname, lname)					\
 	TESTSETFLAG_FALSE(uname, lname) TESTCLEARFLAG_FALSE(uname, lname)
 
+#define __PAGEFLAG_FALSE(uname, lname) TESTPAGEFLAG_FALSE(uname, lname)		\
+	__SETPAGEFLAG_NOOP(uname, lname) __CLEARPAGEFLAG_NOOP(uname, lname)
+
 __PAGEFLAG(Locked, locked, PF_NO_TAIL)
 FOLIO_FLAG(waiters, FOLIO_HEAD_PAGE)
 FOLIO_FLAG(referenced, FOLIO_HEAD_PAGE)

-- 
2.47.1.613.gc27f4b7a9f-goog