[PATCH v4 8/8] mm: Mark anonymous struct field of 'struct vm_fault' as 'const'

[Will Deacon]

The fields of this struct are only ever read after being initialised, so
mark it 'const' before somebody tries to modify it again.

Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Will Deacon <will@xxxxxxxxxx>
---
 include/linux/mm.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index e0f056753bef..7ff3d9817d38 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -514,7 +514,7 @@ static inline bool fault_flag_allow_retry_first(unsigned int flags)
  * pgoff should be used in favour of virtual_address, if possible.
  */
 struct vm_fault {
-	struct {
+	const struct {
 		struct vm_area_struct *vma;	/* Target VMA */
 		gfp_t gfp_mask;			/* gfp mask to be used for allocations */
 		pgoff_t pgoff;			/* Logical page offset based on vma */
-- 
2.30.0.284.gd98b1dd5eaa7-goog