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.
12 #include <linux/lglock.h>
22 extern struct super_block *blockdev_superblock;
23 extern void __init bdev_cache_init(void);
25 static inline int sb_is_blkdev_sb(struct super_block *sb)
27 return sb == blockdev_superblock;
30 extern int __sync_blockdev(struct block_device *bdev, int wait);
33 static inline void bdev_cache_init(void)
37 static inline int sb_is_blkdev_sb(struct super_block *sb)
42 static inline int __sync_blockdev(struct block_device *bdev, int wait)
51 extern void __init chrdev_init(void);
56 extern int check_unsafe_exec(struct linux_binprm *);
61 extern int copy_mount_options(const void __user *, unsigned long *);
62 extern int copy_mount_string(const void __user *, char **);
64 extern void free_vfsmnt(struct vfsmount *);
65 extern struct vfsmount *alloc_vfsmnt(const char *);
66 extern unsigned int mnt_get_count(struct vfsmount *mnt);
67 extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
68 extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
70 extern void release_mounts(struct list_head *);
71 extern void umount_tree(struct vfsmount *, int, struct list_head *);
72 extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int);
73 extern int finish_automount(struct vfsmount *, struct path *);
75 extern void mnt_make_longterm(struct vfsmount *);
76 extern void mnt_make_shortterm(struct vfsmount *);
78 extern void __init mnt_init(void);
80 DECLARE_BRLOCK(vfsmount_lock);
86 extern void chroot_fs_refs(struct path *, struct path *);
91 extern void file_sb_list_add(struct file *f, struct super_block *sb);
92 extern void file_sb_list_del(struct file *f);
93 extern void mark_files_ro(struct super_block *);
94 extern struct file *get_empty_filp(void);
99 extern int do_remount_sb(struct super_block *, int, void *, int);
100 extern void __put_super(struct super_block *sb);
101 extern void put_super(struct super_block *sb);
107 extern struct file *nameidata_to_filp(struct nameidata *);
108 extern void release_open_intent(struct nameidata *);
113 extern int get_nr_dirty_inodes(void);
114 extern void evict_inodes(struct super_block *);
115 extern int invalidate_inodes(struct super_block *);