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 * namei.c
46 */
47extern int __inode_permission(struct inode *, int);
48
49/*
50 * namespace.c
51 */
52extern int copy_mount_options(const void __user *, unsigned long *);
53extern int copy_mount_string(const void __user *, char **);
54
55extern struct vfsmount *lookup_mnt(struct path *);
56extern int finish_automount(struct vfsmount *, struct path *);
57
58extern int sb_prepare_remount_readonly(struct super_block *);
59
60extern void __init mnt_init(void);
61
62extern struct lglock vfsmount_lock;
63
64extern int __mnt_want_write(struct vfsmount *);
65extern int __mnt_want_write_file(struct file *);
66extern void __mnt_drop_write(struct vfsmount *);
67extern void __mnt_drop_write_file(struct file *);
68
69/*
70 * fs_struct.c
71 */
72extern void chroot_fs_refs(struct path *, struct path *);
73
74/*
75 * file_table.c
76 */
77extern void file_sb_list_add(struct file *f, struct super_block *sb);
78extern void file_sb_list_del(struct file *f);
79extern void mark_files_ro(struct super_block *);
80extern struct file *get_empty_filp(void);
81
82/*
83 * super.c
84 */
85extern int do_remount_sb(struct super_block *, int, void *, int);
86extern bool grab_super_passive(struct super_block *sb);
87extern struct dentry *mount_fs(struct file_system_type *,
88 int, const char *, void *);
89extern struct super_block *user_get_super(dev_t);
90
91/*
92 * open.c
93 */
94struct open_flags {
95 int open_flag;
96 umode_t mode;
97 int acc_mode;
98 int intent;
99};
100extern struct file *do_filp_open(int dfd, struct filename *pathname,
101 const struct open_flags *op, int flags);
102extern struct file *do_file_open_root(struct dentry *, struct vfsmount *,
103 const char *, const struct open_flags *, int lookup_flags);
104
105extern long do_handle_open(int mountdirfd,
106 struct file_handle __user *ufh, int open_flag);
107extern int open_check_o_direct(struct file *f);
108
109/*
110 * inode.c
111 */
112extern spinlock_t inode_sb_list_lock;
113extern void inode_add_lru(struct inode *inode);
114
115/*
116 * fs-writeback.c
117 */
118extern void inode_wb_list_del(struct inode *inode);
119
120extern int get_nr_dirty_inodes(void);
121extern void evict_inodes(struct super_block *);
122extern int invalidate_inodes(struct super_block *, bool);
123
124/*
125 * dcache.c
126 */
127extern struct dentry *__d_alloc(struct super_block *, const struct qstr *);