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gerrit-public.fairphone.software / kernel / msm-4.9 / b2dba1af3c4157040303a76d25216b1713d333d0 / . / fs / internal.h
blob: 839d3f9e91739d5283232addd4dd9134804b9e57 [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
Nick Piggin99b7db72010-08-18 04:37:39 +1000[diff] [blame]12#include <linux/lglock.h>
13
Andrew Morton5e6d12b2006-08-31 12:55:23 +0200[diff] [blame]14struct super_block;
Al Viro9d412a42011-03-17 22:08:28 -0400[diff] [blame]15struct file_system_type;
David Howellsa6f76f22008-11-14 10:39:24 +1100[diff] [blame]16struct linux_binprm;
Al Viro3e93cd62009-03-29 19:00:13 -0400[diff] [blame]17struct path;
Andrew Morton5e6d12b2006-08-31 12:55:23 +0200[diff] [blame]18
David Howells07f3f052006-09-30 20:52:18 +0200[diff] [blame]19/*
20 * block_dev.c
21 */
David Howells93614012006-09-30 20:45:40 +0200[diff] [blame]22#ifdef CONFIG_BLOCK
David Howells07f3f052006-09-30 20:52:18 +0200[diff] [blame]23extern void __init bdev_cache_init(void);
24
Jan Kara5cee5812009-04-27 16:43:51 +0200[diff] [blame]25extern int __sync_blockdev(struct block_device *bdev, int wait);
26
Andrew Morton5e6d12b2006-08-31 12:55:23 +0200[diff] [blame]27#else
28static inline void bdev_cache_init(void)
29{
30}
31
Jan Kara5cee5812009-04-27 16:43:51 +0200[diff] [blame]32static inline int __sync_blockdev(struct block_device *bdev, int wait)
33{
34 return 0;
35}
David Howells93614012006-09-30 20:45:40 +0200[diff] [blame]36#endif
David Howells7b0de422006-08-29 19:06:07 +0100[diff] [blame]37
David Howells07f3f052006-09-30 20:52:18 +0200[diff] [blame]38/*
39 * char_dev.c
40 */
41extern void __init chrdev_init(void);
42
43/*
David Howells07f3f052006-09-30 20:52:18 +0200[diff] [blame]44 * namespace.c
45 */
46extern int copy_mount_options(const void __user *, unsigned long *);
Vegard Nossumeca6f532009-09-18 13:05:45 -0700[diff] [blame]47extern int copy_mount_string(const void __user *, char **);
Al Viro6d59e7f2008-03-22 15:48:17 -0400[diff] [blame]48
Al Viro6d59e7f2008-03-22 15:48:17 -0400[diff] [blame]49extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
David Howells0f60f242011-03-21 14:28:58 +0000[diff] [blame]50extern struct vfsmount *lookup_mnt(struct path *);
Al Viro19a167a2011-01-17 01:35:23 -0500[diff] [blame]51extern int finish_automount(struct vfsmount *, struct path *);
Al Viro6d59e7f2008-03-22 15:48:17 -0400[diff] [blame]52
Al Virof03c6592011-01-14 22:30:21 -0500[diff] [blame]53extern void mnt_make_longterm(struct vfsmount *);
54extern void mnt_make_shortterm(struct vfsmount *);
55
Al Viro6d59e7f2008-03-22 15:48:17 -0400[diff] [blame]56extern void __init mnt_init(void);
Al Viro3e93cd62009-03-29 19:00:13 -0400[diff] [blame]57
Nick Piggin99b7db72010-08-18 04:37:39 +1000[diff] [blame]58DECLARE_BRLOCK(vfsmount_lock);
59
Al Viro47cd8132010-02-05 02:01:14 -0500[diff] [blame]60
Al Viro3e93cd62009-03-29 19:00:13 -0400[diff] [blame]61/*
62 * fs_struct.c
63 */
64extern void chroot_fs_refs(struct path *, struct path *);
npiggin@suse.de864d7c42009-04-26 20:25:56 +1000[diff] [blame]65
66/*
67 * file_table.c
68 */
Nick Piggind996b622010-08-18 04:37:36 +1000[diff] [blame]69extern void file_sb_list_add(struct file *f, struct super_block *sb);
70extern void file_sb_list_del(struct file *f);
npiggin@suse.de864d7c42009-04-26 20:25:56 +1000[diff] [blame]71extern void mark_files_ro(struct super_block *);
Eric Parise81e3f42009-12-04 15:47:36 -0500[diff] [blame]72extern struct file *get_empty_filp(void);
Al Viro62c69432009-05-07 03:12:29 -0400[diff] [blame]73
74/*
75 * super.c
76 */
77extern int do_remount_sb(struct super_block *, int, void *, int);
Dave Chinner12ad3ab2011-07-08 14:14:41 +1000[diff] [blame]78extern bool grab_super_passive(struct super_block *sb);
Al Viro9d412a42011-03-17 22:08:28 -0400[diff] [blame]79extern struct dentry *mount_fs(struct file_system_type *,
80 int, const char *, void *);
Al Viro482928d2009-12-19 10:10:39 -0500[diff] [blame]81
82/*
83 * open.c
84 */
85struct nameidata;
86extern struct file *nameidata_to_filp(struct nameidata *);
87extern void release_open_intent(struct nameidata *);
Al Viro47c805d2011-02-23 17:44:09 -0500[diff] [blame]88struct open_flags {
89 int open_flag;
90 int mode;
91 int acc_mode;
92 int intent;
93};
94extern struct file *do_filp_open(int dfd, const char *pathname,
95 const struct open_flags *op, int lookup_flags);
Al Viro73d049a2011-03-11 12:08:24 -0500[diff] [blame]96extern struct file *do_file_open_root(struct dentry *, struct vfsmount *,
97 const char *, const struct open_flags *, int lookup_flags);
Al Viroa8dade32010-10-24 11:13:10 -0400[diff] [blame]98
Aneesh Kumar K.Vbecfd1f2011-01-29 18:43:26 +0530[diff] [blame]99extern long do_handle_open(int mountdirfd,
100 struct file_handle __user *ufh, int open_flag);
101
Al Viroa8dade32010-10-24 11:13:10 -0400[diff] [blame]102/*
103 * inode.c
104 */
Dave Chinner55fa6092011-03-22 22:23:40 +1100[diff] [blame]105extern spinlock_t inode_sb_list_lock;
106
Dave Chinnera66979a2011-03-22 22:23:41 +1100[diff] [blame]107/*
108 * fs-writeback.c
109 */
110extern void inode_wb_list_del(struct inode *inode);
111
Dave Chinnercffbc8a2010-10-23 05:03:02 -0400[diff] [blame]112extern int get_nr_dirty_inodes(void);
Al Viroa4cdbd82010-10-29 05:49:13 -0400[diff] [blame]113extern void evict_inodes(struct super_block *);
NeilBrown93b270f2011-02-24 17:25:47 +1100[diff] [blame]114extern int invalidate_inodes(struct super_block *, bool);
Al Viroa4464db2011-07-07 15:03:58 -0400[diff] [blame]115
116/*
117 * dcache.c
118 */
119extern struct dentry *__d_alloc(struct super_block *, const struct qstr *);