linux-kernel - [PATCH 4/9] vmalloc: is_vmalloc_addr

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Message-ID: <20240819165939.745801-5-kent.overstreet@linux.dev>
Date: Mon, 19 Aug 2024 12:59:30 -0400
From: Kent Overstreet <kent.overstreet@...ux.dev>
To: rcu@...r.kernel.org
Cc: Kent Overstreet <kent.overstreet@...ux.dev>,
	paulmck@...nel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 4/9] vmalloc: is_vmalloc_addr_inlined()

Signed-off-by: Kent Overstreet <kent.overstreet@...ux.dev>
---
 include/linux/mm.h | 7 +++++++
 mm/vmalloc.c       | 4 +---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index c4b238a20b76..e23516d197d7 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1193,6 +1193,13 @@ unsigned long vmalloc_to_pfn(const void *addr);
  * is no special casing required.
  */
 #ifdef CONFIG_MMU
+static inline bool is_vmalloc_addr_inlined(const void *x)
+{
+	unsigned long addr = (unsigned long)kasan_reset_tag(x);
+
+	return addr >= VMALLOC_START && addr < VMALLOC_END;
+}
+
 extern bool is_vmalloc_addr(const void *x);
 extern int is_vmalloc_or_module_addr(const void *x);
 #else
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 6b783baf12a1..2bba32d54fb6 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -78,9 +78,7 @@ static const bool vmap_allow_huge = false;
 
 bool is_vmalloc_addr(const void *x)
 {
-	unsigned long addr = (unsigned long)kasan_reset_tag(x);
-
-	return addr >= VMALLOC_START && addr < VMALLOC_END;
+	return is_vmalloc_addr_inlined(x);
 }
 EXPORT_SYMBOL(is_vmalloc_addr);
 
-- 
2.45.2