| | 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 | */ |
| | 34 | static inline ino_t |
| | 35 | cifs_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 | |
| | 44 | static inline void cifs_set_time(struct dentry *dentry, unsigned long time) |
| | 45 | { |
| | 46 | dentry->d_fsdata = (void *) time; |
| | 47 | } |
| | 48 | |
| | 49 | static inline unsigned long cifs_get_time(struct dentry *dentry) |
| | 50 | { |
| | 51 | return (unsigned long) dentry->d_fsdata; |
| | 52 | } |
| | 53 | |
| | 54 | extern struct file_system_type cifs_fs_type; |
| | 55 | extern const struct address_space_operations cifs_addr_ops; |
| | 56 | extern const struct address_space_operations cifs_addr_ops_smallbuf; |
| | 57 | |
| | 58 | /* Functions related to super block operations */ |
| | 59 | extern void cifs_sb_active(struct super_block *sb); |
| | 60 | extern void cifs_sb_deactive(struct super_block *sb); |
| | 61 | |
| | 62 | /* Functions related to inodes */ |
| | 63 | extern const struct inode_operations cifs_dir_inode_ops; |
| | 64 | extern struct inode *cifs_root_iget(struct super_block *); |
| | 65 | extern int cifs_create(struct inode *, struct dentry *, umode_t, |
| | 66 | bool excl); |
| | 67 | extern int cifs_atomic_open(struct inode *, struct dentry *, |
| | 68 | struct file *, unsigned, umode_t); |
| | 69 | extern struct dentry *cifs_lookup(struct inode *, struct dentry *, |
| | 70 | unsigned int); |
| | 71 | extern int cifs_unlink(struct inode *dir, struct dentry *dentry); |
| | 72 | extern int cifs_hardlink(struct dentry *, struct inode *, struct dentry *); |
| | 73 | extern int cifs_mknod(struct inode *, struct dentry *, umode_t, dev_t); |
| | 74 | extern int cifs_mkdir(struct inode *, struct dentry *, umode_t); |
| | 75 | extern int cifs_rmdir(struct inode *, struct dentry *); |
| | 76 | extern int cifs_rename2(struct inode *, struct dentry *, struct inode *, |
| | 77 | struct dentry *, unsigned int); |
| | 78 | extern int cifs_revalidate_file_attr(struct file *filp); |
| | 79 | extern int cifs_revalidate_dentry_attr(struct dentry *); |
| | 80 | extern int cifs_revalidate_file(struct file *filp); |
| | 81 | extern int cifs_revalidate_dentry(struct dentry *); |
| | 82 | extern int cifs_invalidate_mapping(struct inode *inode); |
| | 83 | extern int cifs_revalidate_mapping(struct inode *inode); |
| | 84 | extern int cifs_zap_mapping(struct inode *inode); |
| | 85 | extern int cifs_getattr(const struct path *, struct kstat *, u32, unsigned int); |
| | 86 | extern int cifs_setattr(struct dentry *, struct iattr *); |
| | 87 | |
| | 88 | extern const struct inode_operations cifs_file_inode_ops; |
| | 89 | extern const struct inode_operations cifs_symlink_inode_ops; |
| | 90 | extern const struct inode_operations cifs_dfs_referral_inode_operations; |
| | 91 | |
| | 92 | |
| | 93 | /* Functions related to files and directories */ |
| | 94 | extern const struct file_operations cifs_file_ops; |
| | 95 | extern const struct file_operations cifs_file_direct_ops; /* if directio mnt */ |
| | 96 | extern const struct file_operations cifs_file_strict_ops; /* if strictio mnt */ |
| | 97 | extern const struct file_operations cifs_file_nobrl_ops; /* no brlocks */ |
| | 98 | extern const struct file_operations cifs_file_direct_nobrl_ops; |
| | 99 | extern const struct file_operations cifs_file_strict_nobrl_ops; |
| | 100 | extern int cifs_open(struct inode *inode, struct file *file); |
| | 101 | extern int cifs_close(struct inode *inode, struct file *file); |
| | 102 | extern int cifs_closedir(struct inode *inode, struct file *file); |
| | 103 | extern ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to); |
| | 104 | extern ssize_t cifs_direct_readv(struct kiocb *iocb, struct iov_iter *to); |
| | 105 | extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to); |
| | 106 | extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from); |
| | 107 | extern ssize_t cifs_direct_writev(struct kiocb *iocb, struct iov_iter *from); |
| | 108 | extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from); |
| | 109 | extern int cifs_lock(struct file *, int, struct file_lock *); |
| | 110 | extern int cifs_fsync(struct file *, loff_t, loff_t, int); |
| | 111 | extern int cifs_strict_fsync(struct file *, loff_t, loff_t, int); |
| | 112 | extern int cifs_flush(struct file *, fl_owner_t id); |
| | 113 | extern int cifs_file_mmap(struct file * , struct vm_area_struct *); |
| | 114 | extern int cifs_file_strict_mmap(struct file * , struct vm_area_struct *); |
| | 115 | extern const struct file_operations cifs_dir_ops; |
| | 116 | extern int cifs_dir_open(struct inode *inode, struct file *file); |
| | 117 | extern int cifs_readdir(struct file *file, struct dir_context *ctx); |
| | 118 | |
| | 119 | /* Functions related to dir entries */ |
| | 120 | extern const struct dentry_operations cifs_dentry_ops; |
| | 121 | extern const struct dentry_operations cifs_ci_dentry_ops; |
| | 122 | |
| | 123 | #ifdef CONFIG_CIFS_DFS_UPCALL |
| | 124 | extern struct vfsmount *cifs_dfs_d_automount(struct path *path); |
| | 125 | #else |
| | 126 | #define cifs_dfs_d_automount NULL |
| | 127 | #endif |
| | 128 | |
| | 129 | /* Functions related to symlinks */ |
| | 130 | extern const char *cifs_get_link(struct dentry *, struct inode *, |
| | 131 | struct delayed_call *); |
| | 132 | extern int cifs_symlink(struct inode *inode, struct dentry *direntry, |
| | 133 | const char *symname); |
| | 134 | |
| | 135 | #ifdef CONFIG_CIFS_XATTR |
| | 136 | extern const struct xattr_handler *cifs_xattr_handlers[]; |
| | 137 | extern ssize_t cifs_listxattr(struct dentry *, char *, size_t); |
| | 138 | #else |
| | 139 | # define cifs_xattr_handlers NULL |
| | 140 | # define cifs_listxattr NULL |
| | 141 | #endif |
| | 142 | |
| | 143 | extern ssize_t cifs_file_copychunk_range(unsigned int xid, |
| | 144 | struct file *src_file, loff_t off, |
| | 145 | struct file *dst_file, loff_t destoff, |
| | 146 | size_t len, unsigned int flags); |
| | 147 | |
| | 148 | extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); |
| | 149 | #ifdef CONFIG_CIFS_NFSD_EXPORT |
| | 150 | extern const struct export_operations cifs_export_ops; |
| | 151 | #endif /* CONFIG_CIFS_NFSD_EXPORT */ |
| | 152 | |
| | 153 | #define CIFS_VERSION "2.18" |
| | 154 | #endif /* _CIFSFS_H */ |
projects / linux-2.6-block.git / blame_incremental