Fix readdir for ext2

include/sys/blk.h

@@ -2,6 +2,8 @@
 #include "sys/types.h"
 #include "sys/dev.h"
 
+struct vfs_node;
+
 struct blkdev {
     void *dev_data;
     struct dev_entry *ent;
@@ -15,6 +17,7 @@ struct blkdev {
 
 ssize_t blk_read(struct blkdev *blk, void *buf, size_t off, size_t count);
 ssize_t blk_write(struct blkdev *blk, const void *buf, size_t off, size_t count);
+int blk_mount_auto(struct vfs_node *at, struct blkdev *blkdev, const char *opt);
 
 struct blkdev *blk_by_name(const char *name);
 int blk_enumerate_partitions(struct blkdev *blk);

include/sys/fs/vfs.h

@@ -91,6 +91,7 @@ void vfs_node_free(struct vfs_node *n);
  */
 struct vfs_node *vfs_node_create(const char *name, vnode_t *vn);
 
+int vfs_mount_internal(struct vfs_node *at, void *blkdev, const char *fs_name, const char *opt);
 /**
  * @brief Create a mountpoint in a filesystem tree so that
  *        a "source" directory actually refers to the root