diff --git a/headers/private/kernel/vfs.h b/headers/private/kernel/vfs.h
index 24f47972cd..65dfae46c1 100755
--- a/headers/private/kernel/vfs.h
+++ b/headers/private/kernel/vfs.h
@@ -75,9 +75,9 @@ status_t vfs_get_vnode(mount_id mountID, vnode_id vnodeID, void **_vnode);
 int vfs_put_vnode_ptr(void *vnode);
 void vfs_vnode_acquire_ref(void *vnode);
 void vfs_vnode_release_ref(void *vnode);
-ssize_t vfs_can_page(void *vnode);
-ssize_t vfs_read_page(void *vnode, iovecs *vecs, off_t pos);
-ssize_t vfs_write_page(void *vnode, iovecs *vecs, off_t pos);
+bool vfs_can_page(void *vnode);
+status_t vfs_read_pages(void *vnode, off_t pos, const iovec *vecs, size_t count, size_t *_numBytes);
+status_t vfs_write_pages(void *vnode, off_t pos, const iovec *vecs, size_t count, size_t *_numBytes);
 status_t vfs_get_vnode_cache(void *vnode, void **_cache);
 
 /* special module convenience call */
diff --git a/headers/private/kernel/vm_types.h b/headers/private/kernel/vm_types.h
index ddf58cc76a..ee6b5dcb82 100644
--- a/headers/private/kernel/vm_types.h
+++ b/headers/private/kernel/vm_types.h
@@ -134,9 +134,9 @@ typedef struct vm_store {
 typedef struct vm_store_ops {
 	void (*destroy)(struct vm_store *backing_store);
 	off_t (*commit)(struct vm_store *backing_store, off_t size);
-	int (*has_page)(struct vm_store *backing_store, off_t offset);
-	ssize_t (*read)(struct vm_store *backing_store, off_t offset, iovecs *vecs);
-	ssize_t (*write)(struct vm_store *backing_store, off_t offset, iovecs *vecs);
+	bool (*has_page)(struct vm_store *backing_store, off_t offset);
+	status_t (*read)(struct vm_store *backing_store, off_t offset, const iovec *vecs, size_t count, size_t *_numBytes);
+	status_t (*write)(struct vm_store *backing_store, off_t offset, const iovec *vecs, size_t count, size_t *_numBytes);
 	int (*fault)(struct vm_store *backing_store, struct vm_address_space *aspace, off_t offset);
 	void (*acquire_ref)(struct vm_store *backing_store);
 	void (*release_ref)(struct vm_store *backing_store);