[PATCH v3 1/7] mm: Move can_modify_vma to mm/vma.h
From: Pedro Falcato
Date: Fri Aug 16 2024 - 20:19:11 EST
Move can_modify_vma to vma.h so it can be inlined properly (with
the intent to remove can_modify_mm callsites).
Signed-off-by: Pedro Falcato <pedro.falcato@xxxxxxxxx>
---
mm/mseal.c | 17 -----------------
mm/vma.h | 28 ++++++++++++++++++++++++++++
2 files changed, 28 insertions(+), 17 deletions(-)
diff --git a/mm/mseal.c b/mm/mseal.c
index 15bba28acc00..2170e2139ca0 100644
--- a/mm/mseal.c
+++ b/mm/mseal.c
@@ -16,28 +16,11 @@
#include <linux/sched.h>
#include "internal.h"
-static inline bool vma_is_sealed(struct vm_area_struct *vma)
-{
- return (vma->vm_flags & VM_SEALED);
-}
-
static inline void set_vma_sealed(struct vm_area_struct *vma)
{
vm_flags_set(vma, VM_SEALED);
}
-/*
- * check if a vma is sealed for modification.
- * return true, if modification is allowed.
- */
-static bool can_modify_vma(struct vm_area_struct *vma)
-{
- if (unlikely(vma_is_sealed(vma)))
- return false;
-
- return true;
-}
-
static bool is_madv_discard(int behavior)
{
switch (behavior) {
diff --git a/mm/vma.h b/mm/vma.h
index 6efdf1768a0a..e979015cc7fc 100644
--- a/mm/vma.h
+++ b/mm/vma.h
@@ -361,4 +361,32 @@ struct vm_area_struct *vma_iter_prev_range(struct vma_iterator *vmi)
return mas_prev_range(&vmi->mas, 0);
}
+#ifdef CONFIG_64BIT
+
+static inline bool vma_is_sealed(struct vm_area_struct *vma)
+{
+ return (vma->vm_flags & VM_SEALED);
+}
+
+/*
+ * check if a vma is sealed for modification.
+ * return true, if modification is allowed.
+ */
+static inline bool can_modify_vma(struct vm_area_struct *vma)
+{
+ if (unlikely(vma_is_sealed(vma)))
+ return false;
+
+ return true;
+}
+
+#else
+
+static inline bool can_modify_vma(struct vm_area_struct *vma)
+{
+ return true;
+}
+
+#endif
+
#endif /* __MM_VMA_H */
--
2.46.0