linux/fs/cifs/cifsfs.h
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   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#define ROOT_I 2
  26
  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
  40extern struct file_system_type cifs_fs_type;
  41extern const struct address_space_operations cifs_addr_ops;
  42extern const struct address_space_operations cifs_addr_ops_smallbuf;
  43
  44/* Functions related to super block operations */
  45extern void cifs_sb_active(struct super_block *sb);
  46extern void cifs_sb_deactive(struct super_block *sb);
  47
  48/* Functions related to inodes */
  49extern const struct inode_operations cifs_dir_inode_ops;
  50extern struct inode *cifs_root_iget(struct super_block *);
  51extern int cifs_create(struct inode *, struct dentry *, umode_t,
  52                       bool excl);
  53extern int cifs_atomic_open(struct inode *, struct dentry *,
  54                            struct file *, unsigned, umode_t,
  55                            int *);
  56extern struct dentry *cifs_lookup(struct inode *, struct dentry *,
  57                                  unsigned int);
  58extern int cifs_unlink(struct inode *dir, struct dentry *dentry);
  59extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *);
  60extern int cifs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
  61extern int cifs_mkdir(struct inode *, struct dentry *, umode_t);
  62extern int cifs_rmdir(struct inode *, struct dentry *);
  63extern int cifs_rename(struct inode *, struct dentry *, struct inode *,
  64                       struct dentry *);
  65extern int cifs_revalidate_file_attr(struct file *filp);
  66extern int cifs_revalidate_dentry_attr(struct dentry *);
  67extern int cifs_revalidate_file(struct file *filp);
  68extern int cifs_revalidate_dentry(struct dentry *);
  69extern int cifs_invalidate_mapping(struct inode *inode);
  70extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
  71extern int cifs_setattr(struct dentry *, struct iattr *);
  72
  73extern const struct inode_operations cifs_file_inode_ops;
  74extern const struct inode_operations cifs_symlink_inode_ops;
  75extern const struct inode_operations cifs_dfs_referral_inode_operations;
  76
  77
  78/* Functions related to files and directories */
  79extern const struct file_operations cifs_file_ops;
  80extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */
  81extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */
  82extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */
  83extern const struct file_operations cifs_file_direct_nobrl_ops;
  84extern const struct file_operations cifs_file_strict_nobrl_ops;
  85extern int cifs_open(struct inode *inode, struct file *file);
  86extern int cifs_close(struct inode *inode, struct file *file);
  87extern int cifs_closedir(struct inode *inode, struct file *file);
  88extern ssize_t cifs_user_readv(struct kiocb *iocb, const struct iovec *iov,
  89                               unsigned long nr_segs, loff_t pos);
  90extern ssize_t cifs_strict_readv(struct kiocb *iocb, const struct iovec *iov,
  91                                 unsigned long nr_segs, loff_t pos);
  92extern ssize_t cifs_user_writev(struct kiocb *iocb, const struct iovec *iov,
  93                                unsigned long nr_segs, loff_t pos);
  94extern ssize_t cifs_strict_writev(struct kiocb *iocb, const struct iovec *iov,
  95                                  unsigned long nr_segs, loff_t pos);
  96extern int cifs_lock(struct file *, int, struct file_lock *);
  97extern int cifs_fsync(struct file *, loff_t, loff_t, int);
  98extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int);
  99extern int cifs_flush(struct file *, fl_owner_t id);
 100extern int cifs_file_mmap(struct file * , struct vm_area_struct *);
 101extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *);
 102extern const struct file_operations cifs_dir_ops;
 103extern int cifs_dir_open(struct inode *inode, struct file *file);
 104extern int cifs_readdir(struct file *file, struct dir_context *ctx);
 105
 106/* Functions related to dir entries */
 107extern const struct dentry_operations cifs_dentry_ops;
 108extern const struct dentry_operations cifs_ci_dentry_ops;
 109
 110#ifdef CONFIG_CIFS_DFS_UPCALL
 111extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
 112#else
 113#define cifs_dfs_d_automount NULL
 114#endif
 115
 116/* Functions related to symlinks */
 117extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
 118extern void cifs_put_link(struct dentry *direntry,
 119                          struct nameidata *nd, void *);
 120extern int cifs_readlink(struct dentry *direntry, char __user *buffer,
 121                         int buflen);
 122extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
 123                        const char *symname);
 124extern int      cifs_removexattr(struct dentry *, const char *);
 125extern int      cifs_setxattr(struct dentry *, const char *, const void *,
 126                        size_t, int);
 127extern ssize_t  cifs_getxattr(struct dentry *, const char *, void *, size_t);
 128extern ssize_t  cifs_listxattr(struct dentry *, char *, size_t);
 129extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
 130
 131#ifdef CONFIG_CIFS_NFSD_EXPORT
 132extern const struct export_operations cifs_export_ops;
 133#endif /* CONFIG_CIFS_NFSD_EXPORT */
 134
 135#define CIFS_VERSION   "2.01"
 136#endif                          /* _CIFSFS_H */
 137
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