[PATCH v3 1/5] mm/mseal: always define VM_SEALED

[Lorenzo Stoakes]

There is no reason to treat VM_SEALED in a special way, in each other case
in which a VMA flag is unavailable due to configuration, we simply assign
that flag to VM_NONE, so make VM_SEALED consistent with all other VMA
flags in this respect.

Additionally, use the next available bit for VM_SEALED, 42, rather than
arbitrarily putting it at 63 and update the declaration to match all other
VMA flags.

No functional change intended.

Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
Reviewed-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Reviewed-by: Pedro Falcato <pfalcato@xxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
---
 include/linux/mm.h               | 6 ++++--
 tools/testing/vma/vma_internal.h | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 805108d7bbc3..fbf2a1f7ffc6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -414,8 +414,10 @@ extern unsigned int kobjsize(const void *objp);
 #endif
 
 #ifdef CONFIG_64BIT
-/* VM is sealed, in vm_flags */
-#define VM_SEALED	_BITUL(63)
+#define VM_SEALED_BIT	42
+#define VM_SEALED	BIT(VM_SEALED_BIT)
+#else
+#define VM_SEALED	VM_NONE
 #endif
 
 /* Bits set in the VMA until the stack is in its final location */
diff --git a/tools/testing/vma/vma_internal.h b/tools/testing/vma/vma_internal.h
index 991022e9e0d3..0fe52fd6782b 100644
--- a/tools/testing/vma/vma_internal.h
+++ b/tools/testing/vma/vma_internal.h
@@ -108,8 +108,10 @@ extern unsigned long dac_mmap_min_addr;
 #define CAP_IPC_LOCK         14
 
 #ifdef CONFIG_64BIT
-/* VM is sealed, in vm_flags */
-#define VM_SEALED	_BITUL(63)
+#define VM_SEALED_BIT	42
+#define VM_SEALED	BIT(VM_SEALED_BIT)
+#else
+#define VM_SEALED	VM_NONE
 #endif
 
 #define FIRST_USER_ADDRESS	0UL
-- 
2.50.1