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gerrit-public.fairphone.software / kernel / msm-4.19 / 4f73c7d342d57d065bdbc0995cb56d8d1701b0c0 / . / fs / cifs / cifsfs.h
blob: 1bbe97c2a63260a558b7d60b521717f71e14df9b [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 * fs/cifs/cifsfs.h
3 *
Steve French297647c2007-10-12 04:11:59 +0000[diff] [blame]4 * Copyright (c) International Business Machines Corp., 2002, 2007
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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
Steve Frenchd38d8c72007-06-28 19:44:13 +0000[diff] [blame]19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]20 */
21
22#ifndef _CIFSFS_H
23#define _CIFSFS_H
24
Jeff Layton02323db2014-05-02 13:50:02 -0400[diff] [blame]25#include <linux/hash.h>
26
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]27#define ROOT_I 2
28
Jeff Laytoncc0bad72009-06-25 00:56:52 -0400[diff] [blame]29/*
30 * ino_t is 32-bits on 32-bit arch. We have to squash the 64-bit value down
Jeff Layton02323db2014-05-02 13:50:02 -0400[diff] [blame]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.
Jeff Laytoncc0bad72009-06-25 00:56:52 -0400[diff] [blame]33 */
Jeff Layton02323db2014-05-02 13:50:02 -0400[diff] [blame]34#if BITS_PER_LONG == 64
Jeff Laytoncc0bad72009-06-25 00:56:52 -0400[diff] [blame]35static inline ino_t
36cifs_uniqueid_to_ino_t(u64 fileid)
37{
Jeff Layton02323db2014-05-02 13:50:02 -0400[diff] [blame]38 return (ino_t)fileid;
Jeff Laytoncc0bad72009-06-25 00:56:52 -0400[diff] [blame]39}
Jeff Layton02323db2014-05-02 13:50:02 -0400[diff] [blame]40#else
41static inline ino_t
42cifs_uniqueid_to_ino_t(u64 fileid)
43{
44 return (ino_t)hash_64(fileid, (sizeof(ino_t) * 8) - 1) + 1;
45}
46#endif
Jeff Laytoncc0bad72009-06-25 00:56:52 -0400[diff] [blame]47
Igor Mammedove6ab1582008-01-11 01:49:48 +0000[diff] [blame]48extern struct file_system_type cifs_fs_type;
Christoph Hellwigf5e54d62006-06-28 04:26:44 -0700[diff] [blame]49extern const struct address_space_operations cifs_addr_ops;
50extern const struct address_space_operations cifs_addr_ops_smallbuf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]51
Mateusz Guzik24261fc2013-03-08 16:30:03 +0100[diff] [blame]52/* Functions related to super block operations */
53extern void cifs_sb_active(struct super_block *sb);
54extern void cifs_sb_deactive(struct super_block *sb);
55
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]56/* Functions related to inodes */
Arjan van de Ven754661f2007-02-12 00:55:38 -0800[diff] [blame]57extern const struct inode_operations cifs_dir_inode_ops;
Shirish Pargaonkar9b6763e2011-02-21 23:56:59 -0600[diff] [blame]58extern struct inode *cifs_root_iget(struct super_block *);
Al Viro4acdaf22011-07-26 01:42:34 -0400[diff] [blame]59extern int cifs_create(struct inode *, struct dentry *, umode_t,
Al Viroebfc3b42012-06-10 18:05:36 -0400[diff] [blame]60 bool excl);
Al Virod9585272012-06-22 12:39:14 +0400[diff] [blame]61extern int cifs_atomic_open(struct inode *, struct dentry *,
Al Viro30d90492012-06-22 12:40:19 +0400[diff] [blame]62 struct file *, unsigned, umode_t,
Al Virod9585272012-06-22 12:39:14 +0400[diff] [blame]63 int *);
Steve French50c2f752007-07-13 00:33:32 +0000[diff] [blame]64extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
Al Viro00cd8dd2012-06-10 17:13:09 -0400[diff] [blame]65 unsigned int);
Jeff Layton5f0319a2008-09-16 14:05:16 -0400[diff] [blame]66extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]67extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
Al Viro1a67aaf2011-07-26 01:52:52 -0400[diff] [blame]68extern int cifs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
Al Viro18bb1db2011-07-26 01:41:39 -0400[diff] [blame]69extern int cifs_mkdir(struct inode *, struct dentry *, umode_t);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]70extern int cifs_rmdir(struct inode *, struct dentry *);
71extern int cifs_rename(struct inode *, struct dentry *, struct inode *,
72 struct dentry *);
Pavel Shilovsky6feb9892011-04-07 18:18:11 +0400[diff] [blame]73extern int cifs_revalidate_file_attr(struct file *filp);
74extern int cifs_revalidate_dentry_attr(struct dentry *);
Jeff Laytonabab0952010-02-12 07:44:18 -0500[diff] [blame]75extern int cifs_revalidate_file(struct file *filp);
Jeff Laytondf2cf172010-02-12 07:44:16 -0500[diff] [blame]76extern int cifs_revalidate_dentry(struct dentry *);
Pavel Shilovsky6feb9892011-04-07 18:18:11 +0400[diff] [blame]77extern int cifs_invalidate_mapping(struct inode *inode);
Jeff Laytone284e532014-04-30 09:31:46 -0400[diff] [blame]78extern int cifs_revalidate_mapping(struct inode *inode);
Jeff Layton4f73c7d2014-04-30 09:31:47 -0400[diff] [blame^]79extern int cifs_zap_mapping(struct inode *inode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]80extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
81extern int cifs_setattr(struct dentry *, struct iattr *);
82
Arjan van de Ven754661f2007-02-12 00:55:38 -0800[diff] [blame]83extern const struct inode_operations cifs_file_inode_ops;
84extern const struct inode_operations cifs_symlink_inode_ops;
Alexey Dobriyan6e1d5dc2009-09-21 17:01:11 -0700[diff] [blame]85extern const struct inode_operations cifs_dfs_referral_inode_operations;
Igor Mammedov6d5ae0d2008-01-25 03:28:31 +0000[diff] [blame]86
87
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]88/* Functions related to files and directories */
Arjan van de Ven4b6f5d22006-03-28 01:56:42 -0800[diff] [blame]89extern const struct file_operations cifs_file_ops;
Steve Frenchd38d8c72007-06-28 19:44:13 +0000[diff] [blame]90extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
Pavel Shilovsky8be7e6b2010-12-12 13:11:13 +0300[diff] [blame]91extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */
92extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */
93extern const struct file_operations cifs_file_direct_nobrl_ops;
94extern const struct file_operations cifs_file_strict_nobrl_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]95extern int cifs_open(struct inode *inode, struct file *file);
96extern int cifs_close(struct inode *inode, struct file *file);
97extern int cifs_closedir(struct inode *inode, struct file *file);
Pavel Shilovsky0b81c1c2011-03-10 10:11:05 +0300[diff] [blame]98extern ssize_t cifs_user_readv(struct kiocb *iocb, const struct iovec *iov,
99 unsigned long nr_segs, loff_t pos);
Pavel Shilovskya70307e2010-12-14 11:50:41 +0300[diff] [blame]100extern ssize_t cifs_strict_readv(struct kiocb *iocb, const struct iovec *iov,
101 unsigned long nr_segs, loff_t pos);
Pavel Shilovsky0b81c1c2011-03-10 10:11:05 +0300[diff] [blame]102extern ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
103 unsigned long nr_segs, loff_t pos);
Pavel Shilovsky72432ff2011-01-24 14:16:35 -0500[diff] [blame]104extern ssize_t cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
105 unsigned long nr_segs, loff_t pos);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]106extern int cifs_lock(struct file *, int, struct file_lock *);
Josef Bacik02c24a82011-07-16 20:44:56 -0400[diff] [blame]107extern int cifs_fsync(struct file *, loff_t, loff_t, int);
108extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int);
Miklos Szeredi75e1fcc2006-06-23 02:05:12 -0700[diff] [blame]109extern int cifs_flush(struct file *, fl_owner_t id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]110extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
Pavel Shilovsky7a6a19b2010-12-14 11:29:51 +0300[diff] [blame]111extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *);
Arjan van de Ven4b6f5d22006-03-28 01:56:42 -0800[diff] [blame]112extern const struct file_operations cifs_dir_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]113extern int cifs_dir_open(struct inode *inode, struct file *file);
Al Virobe4ccdc2013-05-22 16:17:25 -0400[diff] [blame]114extern int cifs_readdir(struct file *file, struct dir_context *ctx);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]115
116/* Functions related to dir entries */
Al Viro4fd03e82009-02-20 05:57:07 +0000[diff] [blame]117extern const struct dentry_operations cifs_dentry_ops;
118extern const struct dentry_operations cifs_ci_dentry_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]119
David Howells01c64fe2011-01-14 18:45:47 +0000[diff] [blame]120#ifdef CONFIG_CIFS_DFS_UPCALL
121extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
122#else
123#define cifs_dfs_d_automount NULL
124#endif
125
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]126/* Functions related to symlinks */
Linus Torvaldscc314ee2005-08-19 18:02:56 -0700[diff] [blame]127extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
Steve Frenchd38d8c72007-06-28 19:44:13 +0000[diff] [blame]128extern int cifs_readlink(struct dentry *direntry, char __user *buffer,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]129 int buflen);
130extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
131 const char *symname);
132extern int cifs_removexattr(struct dentry *, const char *);
Steve French13cd4b72010-10-07 18:46:32 +0000[diff] [blame]133extern int cifs_setxattr(struct dentry *, const char *, const void *,
Steve Frenchf654bac2005-04-28 22:41:04 -0700[diff] [blame]134 size_t, int);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]135extern ssize_t cifs_getxattr(struct dentry *, const char *, void *, size_t);
136extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
Steve Frenchf9ddcca2008-05-15 05:51:55 +0000[diff] [blame]137extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
Steve French297647c2007-10-12 04:11:59 +0000[diff] [blame]138
Paul Bollef3a6a602011-10-12 14:14:04 +0200[diff] [blame]139#ifdef CONFIG_CIFS_NFSD_EXPORT
Christoph Hellwig39655162007-10-21 16:42:17 -0700[diff] [blame]140extern const struct export_operations cifs_export_ops;
Paul Bollef3a6a602011-10-12 14:14:04 +0200[diff] [blame]141#endif /* CONFIG_CIFS_NFSD_EXPORT */
Steve French297647c2007-10-12 04:11:59 +0000[diff] [blame]142
Steve Frenchffe67b52013-09-25 19:01:27 -0500[diff] [blame]143#define CIFS_VERSION "2.02"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]144#endif /* _CIFSFS_H */