diff --git a/kernel_modules/mmap.c b/kernel_modules/mmap.c
index 9d0ec45..25a0b40 100644
--- a/kernel_modules/mmap.c
+++ b/kernel_modules/mmap.c
@@ -24,8 +24,7 @@ static void vm_close(struct vm_area_struct *vma)
 }
 
 /* First page access. */
-int (*fault)(struct vm_fault *vmf);
-static int vm_fault(struct vm_fault *vmf)
+static vm_fault_t vm_fault(struct vm_fault *vmf)
 {
 	struct page *page;
 	struct mmap_info *info;
diff --git a/submodules/linux b/submodules/linux
index 1c163f4..e93c9c9 160000
--- a/submodules/linux
+++ b/submodules/linux
@@ -1 +1 @@
-Subproject commit 1c163f4c7b3f621efff9b28a47abb36f7378d783
+Subproject commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd