1 files changed, 8 insertions, 1 deletions
diff --git a/mm/vma.h b/mm/vma.h
index d58068c0ff2e..729fe3741e89 100644
--- a/mm/vma.h
+++ b/mm/vma.h
@@ -87,6 +87,12 @@ struct vma_merge_struct {
 	struct anon_vma_name *anon_name;
 	enum vma_merge_flags merge_flags;
 	enum vma_merge_state state;
+
+	/*
+	 * If a merge is possible, but an OOM error occurs, give up and don't
+	 * execute the merge, returning NULL.
+	 */
+	bool give_up_on_oom :1;
 };
 
 static inline bool vmg_nomem(struct vma_merge_struct *vmg)
@@ -303,7 +309,8 @@ struct vm_area_struct
 		       struct vm_area_struct *vma,
 		       unsigned long start, unsigned long end,
 		       unsigned long new_flags,
-		       struct vm_userfaultfd_ctx new_ctx);
+		       struct vm_userfaultfd_ctx new_ctx,
+		       bool give_up_on_oom);
 
 struct vm_area_struct *vma_merge_new_range(struct vma_merge_struct *vmg);