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.
13 struct file_system_type;
17 struct shrink_control;
23 extern void __init bdev_cache_init(void);
25 extern int __sync_blockdev(struct block_device *bdev, int wait);
28 static inline void bdev_cache_init(void)
32 static inline int __sync_blockdev(struct block_device *bdev, int wait)
41 extern void guard_bio_eod(int rw, struct bio *bio);
46 extern void __init chrdev_init(void);
51 extern int user_path_mountpoint_at(int, const char __user *, unsigned int, struct path *);
52 extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
53 const char *, unsigned int, struct path *);
58 extern int copy_mount_options(const void __user *, unsigned long *);
59 extern char *copy_mount_string(const void __user *);
61 extern struct vfsmount *lookup_mnt(struct path *);
62 extern int finish_automount(struct vfsmount *, struct path *);
64 extern int sb_prepare_remount_readonly(struct super_block *);
66 extern void __init mnt_init(void);
68 extern int __mnt_want_write(struct vfsmount *);
69 extern int __mnt_want_write_file(struct file *);
70 extern void __mnt_drop_write(struct vfsmount *);
71 extern void __mnt_drop_write_file(struct file *);
76 extern void chroot_fs_refs(const struct path *, const struct path *);
81 extern struct file *get_empty_filp(void);
86 extern int do_remount_sb(struct super_block *, int, void *, int);
87 extern bool trylock_super(struct super_block *sb);
88 extern struct dentry *mount_fs(struct file_system_type *,
89 int, const char *, void *);
90 extern struct super_block *user_get_super(dev_t);
102 extern struct file *do_filp_open(int dfd, struct filename *pathname,
103 const struct open_flags *op);
104 extern struct file *do_file_open_root(struct dentry *, struct vfsmount *,
105 const char *, const struct open_flags *);
107 extern long do_handle_open(int mountdirfd,
108 struct file_handle __user *ufh, int open_flag);
109 extern int open_check_o_direct(struct file *f);
110 extern int vfs_open(const struct path *, struct file *, const struct cred *);
115 extern long prune_icache_sb(struct super_block *sb, struct shrink_control *sc);
116 extern void inode_add_lru(struct inode *inode);
121 extern void inode_io_list_del(struct inode *inode);
123 extern long get_nr_dirty_inodes(void);
124 extern void evict_inodes(struct super_block *);
125 extern int invalidate_inodes(struct super_block *, bool);
130 extern struct dentry *__d_alloc(struct super_block *, const struct qstr *);
131 extern int d_set_mounted(struct dentry *dentry);
132 extern long prune_dcache_sb(struct super_block *sb, struct shrink_control *sc);
137 extern int rw_verify_area(int, struct file *, const loff_t *, size_t);
142 extern const struct file_operations pipefifo_fops;
147 extern void group_pin_kill(struct hlist_head *p);
148 extern void mnt_pin_kill(struct mount *m);
153 extern struct dentry_operations ns_dentry_operations;