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review.trustedfirmware.org / hafnium / third_party / linux / refs/heads/master / . / fs / cifs / cifsfs.h
blob: e996f0bef4145aa1d84201033d57cbc44da6d6d2 [file] [log] [blame]
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]1/*
2 * fs/cifs/cifsfs.h
3 *
4 * Copyright (c) International Business Machines Corp., 2002, 2007
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
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#ifndef _CIFSFS_H
23#define _CIFSFS_H
24
25#include <linux/hash.h>
26
27#define ROOT_I 2
28
29/*
30 * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down
31 * so that it will fit. We use hash_64 to convert the value to 31 bits, and
32 * then add 1, to ensure that we don't end up with a 0 as the value.
33 */
34static inline ino_t
35cifs_uniqueid_to_ino_t(u64 fileid)
36{
37 if ((sizeof(ino_t)) < (sizeof(u64)))
38 return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1;
39
40 return (ino_t)fileid;
41
42}
43
44static inline void cifs_set_time(struct dentry *dentry, unsigned long time)
45{
46 dentry->d_fsdata = (void *) time;
47}
48
49static inline unsigned long cifs_get_time(struct dentry *dentry)
50{
51 return (unsigned long) dentry->d_fsdata;
52}
53
Olivier Deprez92d4c212022-12-06 15:05:30 +0100[diff] [blame]54extern struct file_system_type cifs_fs_type, smb3_fs_type;
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]55extern const struct address_space_operations cifs_addr_ops;
56extern const struct address_space_operations cifs_addr_ops_smallbuf;
57
58/* Functions related to super block operations */
59extern void cifs_sb_active(struct super_block *sb);
60extern void cifs_sb_deactive(struct super_block *sb);
61
62/* Functions related to inodes */
63extern const struct inode_operations cifs_dir_inode_ops;
64extern struct inode *cifs_root_iget(struct super_block *);
65extern int cifs_create(struct inode *, struct dentry *, umode_t,
66 bool excl);
67extern int cifs_atomic_open(struct inode *, struct dentry *,
68 struct file *, unsigned, umode_t);
69extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
70 unsigned int);
71extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
72extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
73extern int cifs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
74extern int cifs_mkdir(struct inode *, struct dentry *, umode_t);
75extern int cifs_rmdir(struct inode *, struct dentry *);
76extern int cifs_rename2(struct inode *, struct dentry *, struct inode *,
77 struct dentry *, unsigned int);
78extern int cifs_revalidate_file_attr(struct file *filp);
79extern int cifs_revalidate_dentry_attr(struct dentry *);
80extern int cifs_revalidate_file(struct file *filp);
81extern int cifs_revalidate_dentry(struct dentry *);
82extern int cifs_invalidate_mapping(struct inode *inode);
83extern int cifs_revalidate_mapping(struct inode *inode);
84extern int cifs_zap_mapping(struct inode *inode);
85extern int cifs_getattr(const struct path *, struct kstat *, u32, unsigned int);
86extern int cifs_setattr(struct dentry *, struct iattr *);
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]87extern int cifs_fiemap(struct inode *, struct fiemap_extent_info *, u64 start,
88 u64 len);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]89
90extern const struct inode_operations cifs_file_inode_ops;
91extern const struct inode_operations cifs_symlink_inode_ops;
92extern const struct inode_operations cifs_dfs_referral_inode_operations;
93
94
95/* Functions related to files and directories */
96extern const struct file_operations cifs_file_ops;
97extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
98extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */
99extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */
100extern const struct file_operations cifs_file_direct_nobrl_ops;
101extern const struct file_operations cifs_file_strict_nobrl_ops;
102extern int cifs_open(struct inode *inode, struct file *file);
103extern int cifs_close(struct inode *inode, struct file *file);
104extern int cifs_closedir(struct inode *inode, struct file *file);
105extern ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to);
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]106extern ssize_t cifs_direct_readv(struct kiocb *iocb, struct iov_iter *to);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]107extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to);
108extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from);
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]109extern ssize_t cifs_direct_writev(struct kiocb *iocb, struct iov_iter *from);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]110extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from);
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]111extern int cifs_flock(struct file *pfile, int cmd, struct file_lock *plock);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]112extern int cifs_lock(struct file *, int, struct file_lock *);
113extern int cifs_fsync(struct file *, loff_t, loff_t, int);
114extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int);
115extern int cifs_flush(struct file *, fl_owner_t id);
116extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
117extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *);
118extern const struct file_operations cifs_dir_ops;
119extern int cifs_dir_open(struct inode *inode, struct file *file);
120extern int cifs_readdir(struct file *file, struct dir_context *ctx);
121
122/* Functions related to dir entries */
123extern const struct dentry_operations cifs_dentry_ops;
124extern const struct dentry_operations cifs_ci_dentry_ops;
125
126#ifdef CONFIG_CIFS_DFS_UPCALL
127extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
128#else
129#define cifs_dfs_d_automount NULL
130#endif
131
132/* Functions related to symlinks */
133extern const char *cifs_get_link(struct dentry *, struct inode *,
134 struct delayed_call *);
135extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
136 const char *symname);
137
138#ifdef CONFIG_CIFS_XATTR
139extern const struct xattr_handler *cifs_xattr_handlers[];
140extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
141#else
142# define cifs_xattr_handlers NULL
143# define cifs_listxattr NULL
144#endif
145
146extern ssize_t cifs_file_copychunk_range(unsigned int xid,
147 struct file *src_file, loff_t off,
148 struct file *dst_file, loff_t destoff,
149 size_t len, unsigned int flags);
150
151extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]152extern void cifs_setsize(struct inode *inode, loff_t offset);
153extern int cifs_truncate_page(struct address_space *mapping, loff_t from);
154
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]155#ifdef CONFIG_CIFS_NFSD_EXPORT
156extern const struct export_operations cifs_export_ops;
157#endif /* CONFIG_CIFS_NFSD_EXPORT */
158
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame]159#define CIFS_VERSION "2.29"
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]160#endif /* _CIFSFS_H */