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CIFS: Implement cifs_file_strict_mmap (try #2)
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1da177e4
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1/*
2 * fs/cifs/cifsfs.h
3 *
297647c2 4 * Copyright (c) International Business Machines Corp., 2002, 2007
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5 * Author(s): Steve French (sfrench@us.ibm.com)
6 *
7 * This library is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU Lesser General Public License as published
9 * by the Free Software Foundation; either version 2.1 of the License, or
10 * (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
15 * the GNU Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with this library; if not, write to the Free Software
d38d8c74 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 */
21
22#ifndef _CIFSFS_H
23#define _CIFSFS_H
24
25#define ROOT_I 2
26
cc0bad75
JL
27/*
28 * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down
29 * so that it will fit.
30 */
31static inline ino_t
32cifs_uniqueid_to_ino_t(u64 fileid)
33{
34 ino_t ino = (ino_t) fileid;
35 if (sizeof(ino_t) < sizeof(u64))
36 ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8;
37 return ino;
38}
39
e6ab1582 40extern struct file_system_type cifs_fs_type;
f5e54d6e
CH
41extern const struct address_space_operations cifs_addr_ops;
42extern const struct address_space_operations cifs_addr_ops_smallbuf;
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43
44/* Functions related to super block operations */
d7c86ff8
JL
45extern void cifs_sb_active(struct super_block *sb);
46extern void cifs_sb_deactive(struct super_block *sb);
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47
48/* Functions related to inodes */
754661f1 49extern const struct inode_operations cifs_dir_inode_ops;
bd433d4c 50extern struct inode *cifs_root_iget(struct super_block *, unsigned long);
d38d8c74 51extern int cifs_create(struct inode *, struct dentry *, int,
1da177e4 52 struct nameidata *);
50c2f753 53extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
1da177e4 54 struct nameidata *);
5f0319a7 55extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
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56extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
57extern int cifs_mknod(struct inode *, struct dentry *, int, dev_t);
58extern int cifs_mkdir(struct inode *, struct dentry *, int);
59extern int cifs_rmdir(struct inode *, struct dentry *);
60extern int cifs_rename(struct inode *, struct dentry *, struct inode *,
61 struct dentry *);
abab095d 62extern int cifs_revalidate_file(struct file *filp);
df2cf170 63extern int cifs_revalidate_dentry(struct dentry *);
8be7e6ba 64extern void cifs_invalidate_mapping(struct inode *inode);
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65extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
66extern int cifs_setattr(struct dentry *, struct iattr *);
67
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68extern const struct inode_operations cifs_file_inode_ops;
69extern const struct inode_operations cifs_symlink_inode_ops;
6e1d5dcc 70extern const struct inode_operations cifs_dfs_referral_inode_operations;
6d5ae0de
IM
71
72
1da177e4 73/* Functions related to files and directories */
4b6f5d20 74extern const struct file_operations cifs_file_ops;
d38d8c74 75extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
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PS
76extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */
77extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */
78extern const struct file_operations cifs_file_direct_nobrl_ops;
79extern const struct file_operations cifs_file_strict_nobrl_ops;
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80extern int cifs_open(struct inode *inode, struct file *file);
81extern int cifs_close(struct inode *inode, struct file *file);
82extern int cifs_closedir(struct inode *inode, struct file *file);
83extern ssize_t cifs_user_read(struct file *file, char __user *read_data,
50c2f753 84 size_t read_size, loff_t *poffset);
1da177e4 85extern ssize_t cifs_user_write(struct file *file, const char __user *write_data,
50c2f753 86 size_t write_size, loff_t *poffset);
1da177e4 87extern int cifs_lock(struct file *, int, struct file_lock *);
7ea80859 88extern int cifs_fsync(struct file *, int);
8be7e6ba 89extern int cifs_strict_fsync(struct file *, int);
75e1fcc0 90extern int cifs_flush(struct file *, fl_owner_t id);
1da177e4 91extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
7a6a19b1 92extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *);
4b6f5d20 93extern const struct file_operations cifs_dir_ops;
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94extern int cifs_dir_open(struct inode *inode, struct file *file);
95extern int cifs_readdir(struct file *file, void *direntry, filldir_t filldir);
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96
97/* Functions related to dir entries */
4fd03e84
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98extern const struct dentry_operations cifs_dentry_ops;
99extern const struct dentry_operations cifs_ci_dentry_ops;
1da177e4 100
01c64fea
DH
101#ifdef CONFIG_CIFS_DFS_UPCALL
102extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
103#else
104#define cifs_dfs_d_automount NULL
105#endif
106
1da177e4 107/* Functions related to symlinks */
cc314eef 108extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
d38d8c74
SF
109extern void cifs_put_link(struct dentry *direntry,
110 struct nameidata *nd, void *);
111extern int cifs_readlink(struct dentry *direntry, char __user *buffer,
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112 int buflen);
113extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
114 const char *symname);
115extern int cifs_removexattr(struct dentry *, const char *);
13cd4b7f 116extern int cifs_setxattr(struct dentry *, const char *, const void *,
f654bac2 117 size_t, int);
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118extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t);
119extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
f9ddcca4 120extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
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121
122#ifdef CONFIG_CIFS_EXPERIMENTAL
39655164 123extern const struct export_operations cifs_export_ops;
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124#endif /* EXPERIMENTAL */
125
1cd3508d 126#define CIFS_VERSION "1.69"
1da177e4 127#endif /* _CIFSFS_H */