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gerrit-public.fairphone.software / kernel / msm-4.9 / ac72a9b733995cb3ef538000f6309b5e724aa469 / . / fs / internal.h
blob: 8a03a5447bdf392a826b088f7329c68af32f3d2e [file] [log] [blame]
David Howells07f3f052006-09-30 20:52:18 +0200[diff] [blame]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
Andrew Morton5e6d12b2006-08-31 12:55:23 +0200[diff] [blame]12struct super_block;
David Howellsa6f76f22008-11-14 10:39:24 +1100[diff] [blame]13struct linux_binprm;
Al Viro3e93cd62009-03-29 19:00:13 -0400[diff] [blame]14struct path;
Andrew Morton5e6d12b2006-08-31 12:55:23 +0200[diff] [blame]15
David Howells07f3f052006-09-30 20:52:18 +0200[diff] [blame]16/*
17 * block_dev.c
18 */
David Howells93614012006-09-30 20:45:40 +0200[diff] [blame]19#ifdef CONFIG_BLOCK
David Howells07f3f052006-09-30 20:52:18 +0200[diff] [blame]20extern struct super_block *blockdev_superblock;
21extern void __init bdev_cache_init(void);
22
Andrew Morton5e6d12b2006-08-31 12:55:23 +0200[diff] [blame]23static inline int sb_is_blkdev_sb(struct super_block *sb)
24{
25 return sb == blockdev_superblock;
26}
David Howells93614012006-09-30 20:45:40 +0200[diff] [blame]27
Jan Kara5cee5812009-04-27 16:43:51 +0200[diff] [blame]28extern int __sync_blockdev(struct block_device *bdev, int wait);
29
Andrew Morton5e6d12b2006-08-31 12:55:23 +0200[diff] [blame]30#else
31static inline void bdev_cache_init(void)
32{
33}
34
35static inline int sb_is_blkdev_sb(struct super_block *sb)
36{
37 return 0;
38}
Jan Kara5cee5812009-04-27 16:43:51 +0200[diff] [blame]39
40static inline int __sync_blockdev(struct block_device *bdev, int wait)
41{
42 return 0;
43}
David Howells93614012006-09-30 20:45:40 +0200[diff] [blame]44#endif
David Howells7b0de422006-08-29 19:06:07 +0100[diff] [blame]45
David Howells07f3f052006-09-30 20:52:18 +0200[diff] [blame]46/*
47 * char_dev.c
48 */
49extern void __init chrdev_init(void);
50
51/*
David Howellsa6f76f22008-11-14 10:39:24 +1100[diff] [blame]52 * exec.c
53 */
Al Viro498052b2009-03-30 07:20:30 -0400[diff] [blame]54extern int check_unsafe_exec(struct linux_binprm *);
David Howellsa6f76f22008-11-14 10:39:24 +1100[diff] [blame]55
56/*
David Howells07f3f052006-09-30 20:52:18 +0200[diff] [blame]57 * namespace.c
58 */
59extern int copy_mount_options(const void __user *, unsigned long *);
Vegard Nossumeca6f532009-09-18 13:05:45 -0700[diff] [blame]60extern int copy_mount_string(const void __user *, char **);
Al Viro6d59e7f2008-03-22 15:48:17 -0400[diff] [blame]61
62extern void free_vfsmnt(struct vfsmount *);
63extern struct vfsmount *alloc_vfsmnt(const char *);
64extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
65extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
66 struct vfsmount *);
67extern void release_mounts(struct list_head *);
68extern void umount_tree(struct vfsmount *, int, struct list_head *);
69extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int);
70
71extern void __init mnt_init(void);
Al Viro3e93cd62009-03-29 19:00:13 -0400[diff] [blame]72
Al Viro47cd8132010-02-05 02:01:14 -0500[diff] [blame]73extern spinlock_t vfsmount_lock;
74
Al Viro3e93cd62009-03-29 19:00:13 -0400[diff] [blame]75/*
76 * fs_struct.c
77 */
78extern void chroot_fs_refs(struct path *, struct path *);
npiggin@suse.de864d7c42009-04-26 20:25:56 +1000[diff] [blame]79
80/*
81 * file_table.c
82 */
83extern void mark_files_ro(struct super_block *);
Eric Parise81e3f42009-12-04 15:47:36 -0500[diff] [blame]84extern struct file *get_empty_filp(void);
Al Viro62c69432009-05-07 03:12:29 -0400[diff] [blame]85
86/*
87 * super.c
88 */
89extern int do_remount_sb(struct super_block *, int, void *, int);
Al Viro482928d2009-12-19 10:10:39 -0500[diff] [blame]90
91/*
92 * open.c
93 */
94struct nameidata;
95extern struct file *nameidata_to_filp(struct nameidata *);
96extern void release_open_intent(struct nameidata *);