diff --git a/ap/os/linux/linux-3.4.x/fs/internal.h b/ap/os/linux/linux-3.4.x/fs/internal.h
new file mode 100644
index 0000000..9962c59
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/internal.h
@@ -0,0 +1,121 @@
+/* fs/ internal definitions
+ *
+ * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/lglock.h>
+
+struct super_block;
+struct file_system_type;
+struct linux_binprm;
+struct path;
+struct mount;
+
+/*
+ * block_dev.c
+ */
+#ifdef CONFIG_BLOCK
+extern void __init bdev_cache_init(void);
+
+extern int __sync_blockdev(struct block_device *bdev, int wait);
+
+#else
+static inline void bdev_cache_init(void)
+{
+}
+
+static inline int __sync_blockdev(struct block_device *bdev, int wait)
+{
+	return 0;
+}
+#endif
+
+/*
+ * char_dev.c
+ */
+extern void __init chrdev_init(void);
+
+/*
+ * namespace.c
+ */
+extern int copy_mount_options(const void __user *, unsigned long *);
+extern int copy_mount_string(const void __user *, char **);
+
+extern struct vfsmount *lookup_mnt(struct path *);
+extern int finish_automount(struct vfsmount *, struct path *);
+
+extern void mnt_make_longterm(struct vfsmount *);
+extern void mnt_make_shortterm(struct vfsmount *);
+extern int sb_prepare_remount_readonly(struct super_block *);
+
+extern void __init mnt_init(void);
+
+DECLARE_BRLOCK(vfsmount_lock);
+
+
+/*
+ * fs_struct.c
+ */
+extern void chroot_fs_refs(struct path *, struct path *);
+
+/*
+ * file_table.c
+ */
+extern void file_sb_list_add(struct file *f, struct super_block *sb);
+extern void file_sb_list_del(struct file *f);
+extern void mark_files_ro(struct super_block *);
+extern struct file *get_empty_filp(void);
+
+/*
+ * super.c
+ */
+extern int do_remount_sb(struct super_block *, int, void *, int);
+extern bool grab_super_passive(struct super_block *sb);
+extern struct dentry *mount_fs(struct file_system_type *,
+			       int, const char *, void *);
+extern struct super_block *user_get_super(dev_t);
+
+/*
+ * open.c
+ */
+struct nameidata;
+extern struct file *nameidata_to_filp(struct nameidata *);
+extern void release_open_intent(struct nameidata *);
+struct open_flags {
+	int open_flag;
+	umode_t mode;
+	int acc_mode;
+	int intent;
+};
+extern struct file *do_filp_open(int dfd, const char *pathname,
+		const struct open_flags *op, int lookup_flags);
+extern struct file *do_file_open_root(struct dentry *, struct vfsmount *,
+		const char *, const struct open_flags *, int lookup_flags);
+
+extern long do_handle_open(int mountdirfd,
+			   struct file_handle __user *ufh, int open_flag);
+
+/*
+ * inode.c
+ */
+extern spinlock_t inode_sb_list_lock;
+
+/*
+ * fs-writeback.c
+ */
+extern void inode_wb_list_del(struct inode *inode);
+
+extern int get_nr_dirty_inodes(void);
+extern void evict_inodes(struct super_block *);
+extern int invalidate_inodes(struct super_block *, bool);
+
+/*
+ * dcache.c
+ */
+extern struct dentry *__d_alloc(struct super_block *, const struct qstr *);