Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/* fs/ internal definitions
2 *
3 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
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.
10 */
11
12#include <linux/lglock.h>
13
14struct super_block;
15struct file_system_type;
16struct linux_binprm;
17struct path;
18struct mount;
19
20/*
21 * block_dev.c
22 */
23#ifdef CONFIG_BLOCK
24extern void __init bdev_cache_init(void);
25
26extern int __sync_blockdev(struct block_device *bdev, int wait);
27
28#else
29static inline void bdev_cache_init(void)
30{
31}
32
33static inline int __sync_blockdev(struct block_device *bdev, int wait)
34{
35 return 0;
36}
37#endif
38
39/*
40 * char_dev.c
41 */
42extern void __init chrdev_init(void);
43
44/*
45 * namespace.c
46 */
47extern int copy_mount_options(const void __user *, unsigned long *);
48extern int copy_mount_string(const void __user *, char **);
49
50extern struct vfsmount *lookup_mnt(struct path *);
51extern int finish_automount(struct vfsmount *, struct path *);
52
53extern void mnt_make_longterm(struct vfsmount *);
54extern void mnt_make_shortterm(struct vfsmount *);
55extern int sb_prepare_remount_readonly(struct super_block *);
56
57extern void __init mnt_init(void);
58
59DECLARE_BRLOCK(vfsmount_lock);
60
61
62/*
63 * fs_struct.c
64 */
65extern void chroot_fs_refs(struct path *, struct path *);
66
67/*
68 * file_table.c
69 */
70extern void file_sb_list_add(struct file *f, struct super_block *sb);
71extern void file_sb_list_del(struct file *f);
72extern void mark_files_ro(struct super_block *);
73extern struct file *get_empty_filp(void);
74
75/*
76 * super.c
77 */
78extern int do_remount_sb(struct super_block *, int, void *, int);
79extern bool grab_super_passive(struct super_block *sb);
80extern struct dentry *mount_fs(struct file_system_type *,
81 int, const char *, void *);
82extern struct super_block *user_get_super(dev_t);
83
84/*
85 * open.c
86 */
87struct nameidata;
88extern struct file *nameidata_to_filp(struct nameidata *);
89extern void release_open_intent(struct nameidata *);
90struct open_flags {
91 int open_flag;
92 umode_t mode;
93 int acc_mode;
94 int intent;
95};
96extern struct file *do_filp_open(int dfd, const char *pathname,
97 const struct open_flags *op, int lookup_flags);
98extern struct file *do_file_open_root(struct dentry *, struct vfsmount *,
99 const char *, const struct open_flags *, int lookup_flags);
100
101extern long do_handle_open(int mountdirfd,
102 struct file_handle __user *ufh, int open_flag);
103
104/*
105 * inode.c
106 */
107extern spinlock_t inode_sb_list_lock;
108
109/*
110 * fs-writeback.c
111 */
112extern void inode_wb_list_del(struct inode *inode);
113
114extern int get_nr_dirty_inodes(void);
115extern void evict_inodes(struct super_block *);
116extern int invalidate_inodes(struct super_block *, bool);
117
118/*
119 * dcache.c
120 */
121extern struct dentry *__d_alloc(struct super_block *, const struct qstr *);