1 /* fs/ internal definitions
3 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
20 extern struct super_block *blockdev_superblock;
21 extern void __init bdev_cache_init(void);
23 static inline int sb_is_blkdev_sb(struct super_block *sb)
25 return sb == blockdev_superblock;
28 extern int __sync_blockdev(struct block_device *bdev, int wait);
31 static inline void bdev_cache_init(void)
35 static inline int sb_is_blkdev_sb(struct super_block *sb)
40 static inline int __sync_blockdev(struct block_device *bdev, int wait)
49 extern void __init chrdev_init(void);
54 extern int check_unsafe_exec(struct linux_binprm *);
59 extern int copy_mount_options(const void __user *, unsigned long *);
60 extern int copy_mount_string(const void __user *, char **);
62 extern void free_vfsmnt(struct vfsmount *);
63 extern struct vfsmount *alloc_vfsmnt(const char *);
64 extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
65 extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
67 extern void release_mounts(struct list_head *);
68 extern void umount_tree(struct vfsmount *, int, struct list_head *);
69 extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int);
71 extern void __init mnt_init(void);
73 extern spinlock_t vfsmount_lock;
78 extern void chroot_fs_refs(struct path *, struct path *);
83 extern void mark_files_ro(struct super_block *);
84 extern struct file *get_empty_filp(void);
89 extern int do_remount_sb(struct super_block *, int, void *, int);
95 extern struct file *nameidata_to_filp(struct nameidata *);
96 extern void release_open_intent(struct nameidata *);