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-rw-r--r--include/linux/mm_types.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 6920c816f6c6..965dedb3ccfa 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -777,13 +777,14 @@ struct pfnmap_track_ctx {
*/
struct vm_area_desc {
/* Immutable state. */
- struct mm_struct *mm;
+ const struct mm_struct *const mm;
+ struct file *const file; /* May vary from vm_file in stacked callers. */
unsigned long start;
unsigned long end;
/* Mutable fields. Populated with initial state. */
pgoff_t pgoff;
- struct file *file;
+ struct file *vm_file;
vm_flags_t vm_flags;
pgprot_t page_prot;