Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/fs/9p/vfs_inode.c |
| 3 | * |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 4 | * This file contains vfs inode ops for the 9P2000 protocol. |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 5 | * |
| 6 | * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com> |
| 7 | * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to: |
| 21 | * Free Software Foundation |
| 22 | * 51 Franklin Street, Fifth Floor |
| 23 | * Boston, MA 02111-1301 USA |
| 24 | * |
| 25 | */ |
| 26 | |
| 27 | #include <linux/module.h> |
| 28 | #include <linux/errno.h> |
| 29 | #include <linux/fs.h> |
| 30 | #include <linux/file.h> |
| 31 | #include <linux/pagemap.h> |
| 32 | #include <linux/stat.h> |
| 33 | #include <linux/string.h> |
| 34 | #include <linux/smp_lock.h> |
| 35 | #include <linux/inet.h> |
| 36 | #include <linux/namei.h> |
| 37 | #include <linux/idr.h> |
| 38 | |
| 39 | #include "debug.h" |
| 40 | #include "v9fs.h" |
| 41 | #include "9p.h" |
| 42 | #include "v9fs_vfs.h" |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 43 | #include "fid.h" |
| 44 | |
| 45 | static struct inode_operations v9fs_dir_inode_operations; |
Eric Van Hensbergen | b501611 | 2005-09-09 13:04:27 -0700 | [diff] [blame] | 46 | static struct inode_operations v9fs_dir_inode_operations_ext; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 47 | static struct inode_operations v9fs_file_inode_operations; |
| 48 | static struct inode_operations v9fs_symlink_inode_operations; |
| 49 | |
| 50 | /** |
| 51 | * unixmode2p9mode - convert unix mode bits to plan 9 |
| 52 | * @v9ses: v9fs session information |
| 53 | * @mode: mode to convert |
| 54 | * |
| 55 | */ |
| 56 | |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 57 | static int unixmode2p9mode(struct v9fs_session_info *v9ses, int mode) |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 58 | { |
| 59 | int res; |
| 60 | res = mode & 0777; |
| 61 | if (S_ISDIR(mode)) |
| 62 | res |= V9FS_DMDIR; |
| 63 | if (v9ses->extended) { |
| 64 | if (S_ISLNK(mode)) |
| 65 | res |= V9FS_DMSYMLINK; |
| 66 | if (v9ses->nodev == 0) { |
| 67 | if (S_ISSOCK(mode)) |
| 68 | res |= V9FS_DMSOCKET; |
| 69 | if (S_ISFIFO(mode)) |
| 70 | res |= V9FS_DMNAMEDPIPE; |
| 71 | if (S_ISBLK(mode)) |
| 72 | res |= V9FS_DMDEVICE; |
| 73 | if (S_ISCHR(mode)) |
| 74 | res |= V9FS_DMDEVICE; |
| 75 | } |
| 76 | |
| 77 | if ((mode & S_ISUID) == S_ISUID) |
| 78 | res |= V9FS_DMSETUID; |
| 79 | if ((mode & S_ISGID) == S_ISGID) |
| 80 | res |= V9FS_DMSETGID; |
| 81 | if ((mode & V9FS_DMLINK)) |
| 82 | res |= V9FS_DMLINK; |
| 83 | } |
| 84 | |
| 85 | return res; |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * p9mode2unixmode- convert plan9 mode bits to unix mode bits |
| 90 | * @v9ses: v9fs session information |
| 91 | * @mode: mode to convert |
| 92 | * |
| 93 | */ |
| 94 | |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 95 | static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode) |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 96 | { |
| 97 | int res; |
| 98 | |
| 99 | res = mode & 0777; |
| 100 | |
| 101 | if ((mode & V9FS_DMDIR) == V9FS_DMDIR) |
| 102 | res |= S_IFDIR; |
| 103 | else if ((mode & V9FS_DMSYMLINK) && (v9ses->extended)) |
| 104 | res |= S_IFLNK; |
| 105 | else if ((mode & V9FS_DMSOCKET) && (v9ses->extended) |
| 106 | && (v9ses->nodev == 0)) |
| 107 | res |= S_IFSOCK; |
| 108 | else if ((mode & V9FS_DMNAMEDPIPE) && (v9ses->extended) |
| 109 | && (v9ses->nodev == 0)) |
| 110 | res |= S_IFIFO; |
| 111 | else if ((mode & V9FS_DMDEVICE) && (v9ses->extended) |
| 112 | && (v9ses->nodev == 0)) |
| 113 | res |= S_IFBLK; |
| 114 | else |
| 115 | res |= S_IFREG; |
| 116 | |
| 117 | if (v9ses->extended) { |
| 118 | if ((mode & V9FS_DMSETUID) == V9FS_DMSETUID) |
| 119 | res |= S_ISUID; |
| 120 | |
| 121 | if ((mode & V9FS_DMSETGID) == V9FS_DMSETGID) |
| 122 | res |= S_ISGID; |
| 123 | } |
| 124 | |
| 125 | return res; |
| 126 | } |
| 127 | |
| 128 | /** |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 129 | * v9fs_blank_wstat - helper function to setup a 9P stat structure |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 130 | * @v9ses: 9P session info (for determining extended mode) |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 131 | * @wstat: structure to initialize |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 132 | * |
| 133 | */ |
| 134 | |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 135 | static void |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 136 | v9fs_blank_wstat(struct v9fs_wstat *wstat) |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 137 | { |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 138 | wstat->type = ~0; |
| 139 | wstat->dev = ~0; |
| 140 | wstat->qid.type = ~0; |
| 141 | wstat->qid.version = ~0; |
| 142 | *((long long *)&wstat->qid.path) = ~0; |
| 143 | wstat->mode = ~0; |
| 144 | wstat->atime = ~0; |
| 145 | wstat->mtime = ~0; |
| 146 | wstat->length = ~0; |
| 147 | wstat->name = NULL; |
| 148 | wstat->uid = NULL; |
| 149 | wstat->gid = NULL; |
| 150 | wstat->muid = NULL; |
| 151 | wstat->n_uid = ~0; |
| 152 | wstat->n_gid = ~0; |
| 153 | wstat->n_muid = ~0; |
| 154 | wstat->extension = NULL; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 155 | } |
| 156 | |
| 157 | /** |
| 158 | * v9fs_get_inode - helper function to setup an inode |
| 159 | * @sb: superblock |
| 160 | * @mode: mode to setup inode with |
| 161 | * |
| 162 | */ |
| 163 | |
| 164 | struct inode *v9fs_get_inode(struct super_block *sb, int mode) |
| 165 | { |
| 166 | struct inode *inode = NULL; |
Eric Van Hensbergen | b501611 | 2005-09-09 13:04:27 -0700 | [diff] [blame] | 167 | struct v9fs_session_info *v9ses = sb->s_fs_info; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 168 | |
| 169 | dprintk(DEBUG_VFS, "super block: %p mode: %o\n", sb, mode); |
| 170 | |
| 171 | inode = new_inode(sb); |
| 172 | if (inode) { |
| 173 | inode->i_mode = mode; |
| 174 | inode->i_uid = current->fsuid; |
| 175 | inode->i_gid = current->fsgid; |
| 176 | inode->i_blksize = sb->s_blocksize; |
| 177 | inode->i_blocks = 0; |
| 178 | inode->i_rdev = 0; |
| 179 | inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; |
| 180 | |
| 181 | switch (mode & S_IFMT) { |
| 182 | case S_IFIFO: |
| 183 | case S_IFBLK: |
| 184 | case S_IFCHR: |
| 185 | case S_IFSOCK: |
Eric Van Hensbergen | b501611 | 2005-09-09 13:04:27 -0700 | [diff] [blame] | 186 | if(!v9ses->extended) { |
| 187 | dprintk(DEBUG_ERROR, "special files without extended mode\n"); |
| 188 | return ERR_PTR(-EINVAL); |
| 189 | } |
Eric Van Hensbergen | 5d58bec | 2005-09-09 13:04:27 -0700 | [diff] [blame] | 190 | init_special_inode(inode, inode->i_mode, |
| 191 | inode->i_rdev); |
| 192 | break; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 193 | case S_IFREG: |
| 194 | inode->i_op = &v9fs_file_inode_operations; |
| 195 | inode->i_fop = &v9fs_file_operations; |
| 196 | break; |
Eric Van Hensbergen | b501611 | 2005-09-09 13:04:27 -0700 | [diff] [blame] | 197 | case S_IFLNK: |
| 198 | if(!v9ses->extended) { |
| 199 | dprintk(DEBUG_ERROR, "extended modes used w/o 9P2000.u\n"); |
| 200 | return ERR_PTR(-EINVAL); |
| 201 | } |
| 202 | inode->i_op = &v9fs_symlink_inode_operations; |
| 203 | break; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 204 | case S_IFDIR: |
| 205 | inode->i_nlink++; |
Eric Van Hensbergen | b501611 | 2005-09-09 13:04:27 -0700 | [diff] [blame] | 206 | if(v9ses->extended) |
| 207 | inode->i_op = &v9fs_dir_inode_operations_ext; |
| 208 | else |
| 209 | inode->i_op = &v9fs_dir_inode_operations; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 210 | inode->i_fop = &v9fs_dir_operations; |
| 211 | break; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 212 | default: |
| 213 | dprintk(DEBUG_ERROR, "BAD mode 0x%x S_IFMT 0x%x\n", |
| 214 | mode, mode & S_IFMT); |
| 215 | return ERR_PTR(-EINVAL); |
| 216 | } |
| 217 | } else { |
| 218 | eprintk(KERN_WARNING, "Problem allocating inode\n"); |
| 219 | return ERR_PTR(-ENOMEM); |
| 220 | } |
| 221 | return inode; |
| 222 | } |
| 223 | |
| 224 | /** |
| 225 | * v9fs_create - helper function to create files and directories |
| 226 | * @dir: directory inode file is being created in |
| 227 | * @file_dentry: dentry file is being created in |
| 228 | * @perm: permissions file is being created with |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 229 | * @open_mode: resulting open mode for file |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 230 | * |
| 231 | */ |
| 232 | |
| 233 | static int |
| 234 | v9fs_create(struct inode *dir, |
| 235 | struct dentry *file_dentry, |
| 236 | unsigned int perm, unsigned int open_mode) |
| 237 | { |
| 238 | struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dir); |
| 239 | struct super_block *sb = dir->i_sb; |
| 240 | struct v9fs_fid *dirfid = |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 241 | v9fs_fid_lookup(file_dentry->d_parent); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 242 | struct v9fs_fid *fid = NULL; |
| 243 | struct inode *file_inode = NULL; |
| 244 | struct v9fs_fcall *fcall = NULL; |
| 245 | struct v9fs_qid qid; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 246 | int dirfidnum = -1; |
| 247 | long newfid = -1; |
| 248 | int result = 0; |
| 249 | unsigned int iounit = 0; |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 250 | int wfidno = -1; |
Latchesar Ionkov | 3cf6429 | 2006-01-08 01:04:58 -0800 | [diff] [blame] | 251 | int err; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 252 | |
| 253 | perm = unixmode2p9mode(v9ses, perm); |
| 254 | |
| 255 | dprintk(DEBUG_VFS, "dir: %p dentry: %p perm: %o mode: %o\n", dir, |
| 256 | file_dentry, perm, open_mode); |
| 257 | |
| 258 | if (!dirfid) |
| 259 | return -EBADF; |
| 260 | |
| 261 | dirfidnum = dirfid->fid; |
| 262 | if (dirfidnum < 0) { |
| 263 | dprintk(DEBUG_ERROR, "No fid for the directory #%lu\n", |
| 264 | dir->i_ino); |
| 265 | return -EBADF; |
| 266 | } |
| 267 | |
| 268 | if (file_dentry->d_inode) { |
| 269 | dprintk(DEBUG_ERROR, |
| 270 | "Odd. There is an inode for dir %lu, name :%s:\n", |
| 271 | dir->i_ino, file_dentry->d_name.name); |
| 272 | return -EEXIST; |
| 273 | } |
| 274 | |
| 275 | newfid = v9fs_get_idpool(&v9ses->fidpool); |
| 276 | if (newfid < 0) { |
| 277 | eprintk(KERN_WARNING, "no free fids available\n"); |
| 278 | return -ENOSPC; |
| 279 | } |
| 280 | |
| 281 | result = v9fs_t_walk(v9ses, dirfidnum, newfid, NULL, &fcall); |
| 282 | if (result < 0) { |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 283 | PRINT_FCALL_ERROR("clone error", fcall); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 284 | v9fs_put_idpool(newfid, &v9ses->fidpool); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 285 | newfid = -1; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 286 | goto CleanUpFid; |
| 287 | } |
| 288 | |
| 289 | kfree(fcall); |
Latchesar Ionkov | 3cf6429 | 2006-01-08 01:04:58 -0800 | [diff] [blame] | 290 | fcall = NULL; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 291 | |
| 292 | result = v9fs_t_create(v9ses, newfid, (char *)file_dentry->d_name.name, |
| 293 | perm, open_mode, &fcall); |
| 294 | if (result < 0) { |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 295 | PRINT_FCALL_ERROR("create fails", fcall); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 296 | goto CleanUpFid; |
| 297 | } |
| 298 | |
| 299 | iounit = fcall->params.rcreate.iounit; |
| 300 | qid = fcall->params.rcreate.qid; |
| 301 | kfree(fcall); |
Latchesar Ionkov | 3cf6429 | 2006-01-08 01:04:58 -0800 | [diff] [blame] | 302 | fcall = NULL; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 303 | |
Latchesar Ionkov | 3cf6429 | 2006-01-08 01:04:58 -0800 | [diff] [blame] | 304 | if (!(perm&V9FS_DMDIR)) { |
| 305 | fid = v9fs_fid_create(file_dentry, v9ses, newfid, 1); |
| 306 | dprintk(DEBUG_VFS, "fid %p %d\n", fid, fid->fidcreate); |
| 307 | if (!fid) { |
| 308 | result = -ENOMEM; |
| 309 | goto CleanUpFid; |
| 310 | } |
| 311 | |
| 312 | fid->qid = qid; |
| 313 | fid->iounit = iounit; |
| 314 | } else { |
| 315 | err = v9fs_t_clunk(v9ses, newfid); |
Latchesar Ionkov | d8da097 | 2006-01-08 01:04:59 -0800 | [diff] [blame] | 316 | newfid = -1; |
Latchesar Ionkov | 3cf6429 | 2006-01-08 01:04:58 -0800 | [diff] [blame] | 317 | if (err < 0) |
| 318 | dprintk(DEBUG_ERROR, "clunk for mkdir failed: %d\n", err); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 319 | } |
| 320 | |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 321 | /* walk to the newly created file and put the fid in the dentry */ |
| 322 | wfidno = v9fs_get_idpool(&v9ses->fidpool); |
Latchesar Ionkov | d8da097 | 2006-01-08 01:04:59 -0800 | [diff] [blame] | 323 | if (wfidno < 0) { |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 324 | eprintk(KERN_WARNING, "no free fids available\n"); |
| 325 | return -ENOSPC; |
| 326 | } |
| 327 | |
| 328 | result = v9fs_t_walk(v9ses, dirfidnum, wfidno, |
Latchesar Ionkov | 3cf6429 | 2006-01-08 01:04:58 -0800 | [diff] [blame] | 329 | (char *) file_dentry->d_name.name, &fcall); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 330 | if (result < 0) { |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 331 | PRINT_FCALL_ERROR("clone error", fcall); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 332 | v9fs_put_idpool(wfidno, &v9ses->fidpool); |
| 333 | wfidno = -1; |
| 334 | goto CleanUpFid; |
| 335 | } |
Latchesar Ionkov | 3cf6429 | 2006-01-08 01:04:58 -0800 | [diff] [blame] | 336 | kfree(fcall); |
| 337 | fcall = NULL; |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 338 | |
| 339 | if (!v9fs_fid_create(file_dentry, v9ses, wfidno, 0)) { |
Latchesar Ionkov | 3cf6429 | 2006-01-08 01:04:58 -0800 | [diff] [blame] | 340 | v9fs_put_idpool(wfidno, &v9ses->fidpool); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 341 | |
| 342 | goto CleanUpFid; |
| 343 | } |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 344 | |
| 345 | if ((perm & V9FS_DMSYMLINK) || (perm & V9FS_DMLINK) || |
| 346 | (perm & V9FS_DMNAMEDPIPE) || (perm & V9FS_DMSOCKET) || |
| 347 | (perm & V9FS_DMDEVICE)) |
| 348 | return 0; |
| 349 | |
Latchesar Ionkov | d8da097 | 2006-01-08 01:04:59 -0800 | [diff] [blame] | 350 | result = v9fs_t_stat(v9ses, wfidno, &fcall); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 351 | if (result < 0) { |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 352 | PRINT_FCALL_ERROR("stat error", fcall); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 353 | goto CleanUpFid; |
| 354 | } |
| 355 | |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 356 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 357 | file_inode = v9fs_get_inode(sb, |
| 358 | p9mode2unixmode(v9ses, fcall->params.rstat.stat.mode)); |
| 359 | |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 360 | if ((!file_inode) || IS_ERR(file_inode)) { |
| 361 | dprintk(DEBUG_ERROR, "create inode failed\n"); |
| 362 | result = -EBADF; |
| 363 | goto CleanUpFid; |
| 364 | } |
| 365 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 366 | v9fs_stat2inode(&fcall->params.rstat.stat, file_inode, sb); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 367 | kfree(fcall); |
Latchesar Ionkov | a93a117 | 2005-11-28 13:44:05 -0800 | [diff] [blame] | 368 | fcall = NULL; |
| 369 | file_dentry->d_op = &v9fs_dentry_operations; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 370 | d_instantiate(file_dentry, file_inode); |
| 371 | |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 372 | return 0; |
| 373 | |
| 374 | CleanUpFid: |
| 375 | kfree(fcall); |
Latchesar Ionkov | 3cf6429 | 2006-01-08 01:04:58 -0800 | [diff] [blame] | 376 | fcall = NULL; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 377 | |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 378 | if (newfid >= 0) { |
Latchesar Ionkov | 3cf6429 | 2006-01-08 01:04:58 -0800 | [diff] [blame] | 379 | err = v9fs_t_clunk(v9ses, newfid); |
| 380 | if (err < 0) |
| 381 | dprintk(DEBUG_ERROR, "clunk failed: %d\n", err); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 382 | } |
| 383 | if (wfidno >= 0) { |
Latchesar Ionkov | 3cf6429 | 2006-01-08 01:04:58 -0800 | [diff] [blame] | 384 | err = v9fs_t_clunk(v9ses, wfidno); |
| 385 | if (err < 0) |
| 386 | dprintk(DEBUG_ERROR, "clunk failed: %d\n", err); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 387 | } |
| 388 | return result; |
| 389 | } |
| 390 | |
| 391 | /** |
| 392 | * v9fs_remove - helper function to remove files and directories |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 393 | * @dir: directory inode that is being deleted |
| 394 | * @file: dentry that is being deleted |
| 395 | * @rmdir: removing a directory |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 396 | * |
| 397 | */ |
| 398 | |
| 399 | static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir) |
| 400 | { |
| 401 | struct v9fs_fcall *fcall = NULL; |
| 402 | struct super_block *sb = NULL; |
| 403 | struct v9fs_session_info *v9ses = NULL; |
| 404 | struct v9fs_fid *v9fid = NULL; |
| 405 | struct inode *file_inode = NULL; |
| 406 | int fid = -1; |
| 407 | int result = 0; |
| 408 | |
| 409 | dprintk(DEBUG_VFS, "inode: %p dentry: %p rmdir: %d\n", dir, file, |
| 410 | rmdir); |
| 411 | |
| 412 | file_inode = file->d_inode; |
| 413 | sb = file_inode->i_sb; |
| 414 | v9ses = v9fs_inode2v9ses(file_inode); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 415 | v9fid = v9fs_fid_lookup(file); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 416 | |
| 417 | if (!v9fid) { |
| 418 | dprintk(DEBUG_ERROR, |
| 419 | "no v9fs_fid\n"); |
| 420 | return -EBADF; |
| 421 | } |
| 422 | |
| 423 | fid = v9fid->fid; |
| 424 | if (fid < 0) { |
| 425 | dprintk(DEBUG_ERROR, "inode #%lu, no fid!\n", |
| 426 | file_inode->i_ino); |
| 427 | return -EBADF; |
| 428 | } |
| 429 | |
| 430 | result = v9fs_t_remove(v9ses, fid, &fcall); |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 431 | if (result < 0) { |
| 432 | PRINT_FCALL_ERROR("remove fails", fcall); |
| 433 | } else { |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 434 | v9fs_put_idpool(fid, &v9ses->fidpool); |
| 435 | v9fs_fid_destroy(v9fid); |
| 436 | } |
| 437 | |
| 438 | kfree(fcall); |
| 439 | return result; |
| 440 | } |
| 441 | |
| 442 | /** |
| 443 | * v9fs_vfs_create - VFS hook to create files |
| 444 | * @inode: directory inode that is being deleted |
| 445 | * @dentry: dentry that is being deleted |
| 446 | * @perm: create permissions |
| 447 | * @nd: path information |
| 448 | * |
| 449 | */ |
| 450 | |
| 451 | static int |
| 452 | v9fs_vfs_create(struct inode *inode, struct dentry *dentry, int perm, |
| 453 | struct nameidata *nd) |
| 454 | { |
| 455 | return v9fs_create(inode, dentry, perm, O_RDWR); |
| 456 | } |
| 457 | |
| 458 | /** |
| 459 | * v9fs_vfs_mkdir - VFS mkdir hook to create a directory |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 460 | * @inode: inode that is being unlinked |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 461 | * @dentry: dentry that is being unlinked |
| 462 | * @mode: mode for new directory |
| 463 | * |
| 464 | */ |
| 465 | |
| 466 | static int v9fs_vfs_mkdir(struct inode *inode, struct dentry *dentry, int mode) |
| 467 | { |
| 468 | return v9fs_create(inode, dentry, mode | S_IFDIR, O_RDONLY); |
| 469 | } |
| 470 | |
| 471 | /** |
| 472 | * v9fs_vfs_lookup - VFS lookup hook to "walk" to a new inode |
| 473 | * @dir: inode that is being walked from |
| 474 | * @dentry: dentry that is being walked to? |
| 475 | * @nameidata: path data |
| 476 | * |
| 477 | */ |
| 478 | |
| 479 | static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry, |
| 480 | struct nameidata *nameidata) |
| 481 | { |
| 482 | struct super_block *sb; |
| 483 | struct v9fs_session_info *v9ses; |
| 484 | struct v9fs_fid *dirfid; |
| 485 | struct v9fs_fid *fid; |
| 486 | struct inode *inode; |
| 487 | struct v9fs_fcall *fcall = NULL; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 488 | int dirfidnum = -1; |
| 489 | int newfid = -1; |
| 490 | int result = 0; |
| 491 | |
| 492 | dprintk(DEBUG_VFS, "dir: %p dentry: (%s) %p nameidata: %p\n", |
| 493 | dir, dentry->d_iname, dentry, nameidata); |
| 494 | |
| 495 | sb = dir->i_sb; |
| 496 | v9ses = v9fs_inode2v9ses(dir); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 497 | dirfid = v9fs_fid_lookup(dentry->d_parent); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 498 | |
| 499 | if (!dirfid) { |
| 500 | dprintk(DEBUG_ERROR, "no dirfid\n"); |
| 501 | return ERR_PTR(-EINVAL); |
| 502 | } |
| 503 | |
| 504 | dirfidnum = dirfid->fid; |
| 505 | |
| 506 | if (dirfidnum < 0) { |
| 507 | dprintk(DEBUG_ERROR, "no dirfid for inode %p, #%lu\n", |
| 508 | dir, dir->i_ino); |
| 509 | return ERR_PTR(-EBADF); |
| 510 | } |
| 511 | |
| 512 | newfid = v9fs_get_idpool(&v9ses->fidpool); |
| 513 | if (newfid < 0) { |
| 514 | eprintk(KERN_WARNING, "newfid fails!\n"); |
| 515 | return ERR_PTR(-ENOSPC); |
| 516 | } |
| 517 | |
| 518 | result = |
| 519 | v9fs_t_walk(v9ses, dirfidnum, newfid, (char *)dentry->d_name.name, |
| 520 | NULL); |
| 521 | if (result < 0) { |
| 522 | v9fs_put_idpool(newfid, &v9ses->fidpool); |
| 523 | if (result == -ENOENT) { |
| 524 | d_add(dentry, NULL); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 525 | dprintk(DEBUG_VFS, |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 526 | "Return negative dentry %p count %d\n", |
| 527 | dentry, atomic_read(&dentry->d_count)); |
| 528 | return NULL; |
| 529 | } |
| 530 | dprintk(DEBUG_ERROR, "walk error:%d\n", result); |
| 531 | goto FreeFcall; |
| 532 | } |
| 533 | |
| 534 | result = v9fs_t_stat(v9ses, newfid, &fcall); |
| 535 | if (result < 0) { |
| 536 | dprintk(DEBUG_ERROR, "stat error\n"); |
| 537 | goto FreeFcall; |
| 538 | } |
| 539 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 540 | inode = v9fs_get_inode(sb, p9mode2unixmode(v9ses, |
| 541 | fcall->params.rstat.stat.mode)); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 542 | |
| 543 | if (IS_ERR(inode) && (PTR_ERR(inode) == -ENOSPC)) { |
| 544 | eprintk(KERN_WARNING, "inode alloc failes, returns %ld\n", |
| 545 | PTR_ERR(inode)); |
| 546 | |
| 547 | result = -ENOSPC; |
| 548 | goto FreeFcall; |
| 549 | } |
| 550 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 551 | inode->i_ino = v9fs_qid2ino(&fcall->params.rstat.stat.qid); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 552 | |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 553 | fid = v9fs_fid_create(dentry, v9ses, newfid, 0); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 554 | if (fid == NULL) { |
| 555 | dprintk(DEBUG_ERROR, "couldn't insert\n"); |
| 556 | result = -ENOMEM; |
| 557 | goto FreeFcall; |
| 558 | } |
| 559 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 560 | fid->qid = fcall->params.rstat.stat.qid; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 561 | |
| 562 | dentry->d_op = &v9fs_dentry_operations; |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 563 | v9fs_stat2inode(&fcall->params.rstat.stat, inode, inode->i_sb); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 564 | |
| 565 | d_add(dentry, inode); |
| 566 | kfree(fcall); |
| 567 | |
| 568 | return NULL; |
| 569 | |
| 570 | FreeFcall: |
| 571 | kfree(fcall); |
| 572 | return ERR_PTR(result); |
| 573 | } |
| 574 | |
| 575 | /** |
| 576 | * v9fs_vfs_unlink - VFS unlink hook to delete an inode |
| 577 | * @i: inode that is being unlinked |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 578 | * @d: dentry that is being unlinked |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 579 | * |
| 580 | */ |
| 581 | |
| 582 | static int v9fs_vfs_unlink(struct inode *i, struct dentry *d) |
| 583 | { |
| 584 | return v9fs_remove(i, d, 0); |
| 585 | } |
| 586 | |
| 587 | /** |
| 588 | * v9fs_vfs_rmdir - VFS unlink hook to delete a directory |
| 589 | * @i: inode that is being unlinked |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 590 | * @d: dentry that is being unlinked |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 591 | * |
| 592 | */ |
| 593 | |
| 594 | static int v9fs_vfs_rmdir(struct inode *i, struct dentry *d) |
| 595 | { |
| 596 | return v9fs_remove(i, d, 1); |
| 597 | } |
| 598 | |
| 599 | /** |
| 600 | * v9fs_vfs_rename - VFS hook to rename an inode |
| 601 | * @old_dir: old dir inode |
| 602 | * @old_dentry: old dentry |
| 603 | * @new_dir: new dir inode |
| 604 | * @new_dentry: new dentry |
| 605 | * |
| 606 | */ |
| 607 | |
| 608 | static int |
| 609 | v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry, |
| 610 | struct inode *new_dir, struct dentry *new_dentry) |
| 611 | { |
| 612 | struct inode *old_inode = old_dentry->d_inode; |
| 613 | struct v9fs_session_info *v9ses = v9fs_inode2v9ses(old_inode); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 614 | struct v9fs_fid *oldfid = v9fs_fid_lookup(old_dentry); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 615 | struct v9fs_fid *olddirfid = |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 616 | v9fs_fid_lookup(old_dentry->d_parent); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 617 | struct v9fs_fid *newdirfid = |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 618 | v9fs_fid_lookup(new_dentry->d_parent); |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 619 | struct v9fs_wstat wstat; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 620 | struct v9fs_fcall *fcall = NULL; |
| 621 | int fid = -1; |
| 622 | int olddirfidnum = -1; |
| 623 | int newdirfidnum = -1; |
| 624 | int retval = 0; |
| 625 | |
| 626 | dprintk(DEBUG_VFS, "\n"); |
| 627 | |
| 628 | if ((!oldfid) || (!olddirfid) || (!newdirfid)) { |
| 629 | dprintk(DEBUG_ERROR, "problem with arguments\n"); |
| 630 | return -EBADF; |
| 631 | } |
| 632 | |
| 633 | /* 9P can only handle file rename in the same directory */ |
| 634 | if (memcmp(&olddirfid->qid, &newdirfid->qid, sizeof(newdirfid->qid))) { |
| 635 | dprintk(DEBUG_ERROR, "old dir and new dir are different\n"); |
| 636 | retval = -EPERM; |
| 637 | goto FreeFcallnBail; |
| 638 | } |
| 639 | |
| 640 | fid = oldfid->fid; |
| 641 | olddirfidnum = olddirfid->fid; |
| 642 | newdirfidnum = newdirfid->fid; |
| 643 | |
| 644 | if (fid < 0) { |
| 645 | dprintk(DEBUG_ERROR, "no fid for old file #%lu\n", |
| 646 | old_inode->i_ino); |
| 647 | retval = -EBADF; |
| 648 | goto FreeFcallnBail; |
| 649 | } |
| 650 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 651 | v9fs_blank_wstat(&wstat); |
| 652 | wstat.muid = v9ses->name; |
| 653 | wstat.name = (char *) new_dentry->d_name.name; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 654 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 655 | retval = v9fs_t_wstat(v9ses, fid, &wstat, &fcall); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 656 | |
| 657 | FreeFcallnBail: |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 658 | if (retval < 0) |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 659 | PRINT_FCALL_ERROR("wstat error", fcall); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 660 | |
| 661 | kfree(fcall); |
| 662 | return retval; |
| 663 | } |
| 664 | |
| 665 | /** |
Adrian Bunk | 943ffb5 | 2006-01-10 00:10:13 +0100 | [diff] [blame] | 666 | * v9fs_vfs_getattr - retrieve file metadata |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 667 | * @mnt - mount information |
| 668 | * @dentry - file to get attributes on |
| 669 | * @stat - metadata structure to populate |
| 670 | * |
| 671 | */ |
| 672 | |
| 673 | static int |
| 674 | v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry, |
| 675 | struct kstat *stat) |
| 676 | { |
| 677 | struct v9fs_fcall *fcall = NULL; |
| 678 | struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dentry->d_inode); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 679 | struct v9fs_fid *fid = v9fs_fid_lookup(dentry); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 680 | int err = -EPERM; |
| 681 | |
| 682 | dprintk(DEBUG_VFS, "dentry: %p\n", dentry); |
| 683 | if (!fid) { |
| 684 | dprintk(DEBUG_ERROR, |
| 685 | "couldn't find fid associated with dentry\n"); |
| 686 | return -EBADF; |
| 687 | } |
| 688 | |
| 689 | err = v9fs_t_stat(v9ses, fid->fid, &fcall); |
| 690 | |
| 691 | if (err < 0) |
| 692 | dprintk(DEBUG_ERROR, "stat error\n"); |
| 693 | else { |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 694 | v9fs_stat2inode(&fcall->params.rstat.stat, dentry->d_inode, |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 695 | dentry->d_inode->i_sb); |
| 696 | generic_fillattr(dentry->d_inode, stat); |
| 697 | } |
| 698 | |
| 699 | kfree(fcall); |
| 700 | return err; |
| 701 | } |
| 702 | |
| 703 | /** |
| 704 | * v9fs_vfs_setattr - set file metadata |
| 705 | * @dentry: file whose metadata to set |
| 706 | * @iattr: metadata assignment structure |
| 707 | * |
| 708 | */ |
| 709 | |
| 710 | static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr) |
| 711 | { |
| 712 | struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dentry->d_inode); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 713 | struct v9fs_fid *fid = v9fs_fid_lookup(dentry); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 714 | struct v9fs_fcall *fcall = NULL; |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 715 | struct v9fs_wstat wstat; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 716 | int res = -EPERM; |
| 717 | |
| 718 | dprintk(DEBUG_VFS, "\n"); |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 719 | |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 720 | if (!fid) { |
| 721 | dprintk(DEBUG_ERROR, |
| 722 | "Couldn't find fid associated with dentry\n"); |
| 723 | return -EBADF; |
| 724 | } |
| 725 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 726 | v9fs_blank_wstat(&wstat); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 727 | if (iattr->ia_valid & ATTR_MODE) |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 728 | wstat.mode = unixmode2p9mode(v9ses, iattr->ia_mode); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 729 | |
| 730 | if (iattr->ia_valid & ATTR_MTIME) |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 731 | wstat.mtime = iattr->ia_mtime.tv_sec; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 732 | |
| 733 | if (iattr->ia_valid & ATTR_ATIME) |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 734 | wstat.atime = iattr->ia_atime.tv_sec; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 735 | |
| 736 | if (iattr->ia_valid & ATTR_SIZE) |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 737 | wstat.length = iattr->ia_size; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 738 | |
| 739 | if (v9ses->extended) { |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 740 | if (iattr->ia_valid & ATTR_UID) |
| 741 | wstat.n_uid = iattr->ia_uid; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 742 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 743 | if (iattr->ia_valid & ATTR_GID) |
| 744 | wstat.n_gid = iattr->ia_gid; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 745 | } |
| 746 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 747 | res = v9fs_t_wstat(v9ses, fid->fid, &wstat, &fcall); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 748 | |
| 749 | if (res < 0) |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 750 | PRINT_FCALL_ERROR("wstat error", fcall); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 751 | |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 752 | kfree(fcall); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 753 | if (res >= 0) |
| 754 | res = inode_setattr(dentry->d_inode, iattr); |
| 755 | |
| 756 | return res; |
| 757 | } |
| 758 | |
| 759 | /** |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 760 | * v9fs_stat2inode - populate an inode structure with mistat info |
| 761 | * @stat: Plan 9 metadata (mistat) structure |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 762 | * @inode: inode to populate |
| 763 | * @sb: superblock of filesystem |
| 764 | * |
| 765 | */ |
| 766 | |
| 767 | void |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 768 | v9fs_stat2inode(struct v9fs_stat *stat, struct inode *inode, |
| 769 | struct super_block *sb) |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 770 | { |
Latchesar Ionkov | 1dac06b | 2006-01-08 01:05:02 -0800 | [diff] [blame] | 771 | int n; |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 772 | char ext[32]; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 773 | struct v9fs_session_info *v9ses = sb->s_fs_info; |
| 774 | |
| 775 | inode->i_nlink = 1; |
| 776 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 777 | inode->i_atime.tv_sec = stat->atime; |
| 778 | inode->i_mtime.tv_sec = stat->mtime; |
| 779 | inode->i_ctime.tv_sec = stat->mtime; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 780 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 781 | inode->i_uid = v9ses->uid; |
| 782 | inode->i_gid = v9ses->gid; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 783 | |
| 784 | if (v9ses->extended) { |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 785 | inode->i_uid = stat->n_uid; |
| 786 | inode->i_gid = stat->n_gid; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 787 | } |
| 788 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 789 | inode->i_mode = p9mode2unixmode(v9ses, stat->mode); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 790 | if ((S_ISBLK(inode->i_mode)) || (S_ISCHR(inode->i_mode))) { |
| 791 | char type = 0; |
| 792 | int major = -1; |
| 793 | int minor = -1; |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 794 | |
Latchesar Ionkov | 1dac06b | 2006-01-08 01:05:02 -0800 | [diff] [blame] | 795 | n = stat->extension.len; |
| 796 | if (n > sizeof(ext)-1) |
| 797 | n = sizeof(ext)-1; |
| 798 | memmove(ext, stat->extension.str, n); |
| 799 | ext[n] = 0; |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 800 | sscanf(ext, "%c %u %u", &type, &major, &minor); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 801 | switch (type) { |
| 802 | case 'c': |
| 803 | inode->i_mode &= ~S_IFBLK; |
| 804 | inode->i_mode |= S_IFCHR; |
| 805 | break; |
| 806 | case 'b': |
| 807 | break; |
| 808 | default: |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 809 | dprintk(DEBUG_ERROR, "Unknown special type %c (%.*s)\n", |
| 810 | type, stat->extension.len, stat->extension.str); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 811 | }; |
| 812 | inode->i_rdev = MKDEV(major, minor); |
| 813 | } else |
| 814 | inode->i_rdev = 0; |
| 815 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 816 | inode->i_size = stat->length; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 817 | |
| 818 | inode->i_blksize = sb->s_blocksize; |
| 819 | inode->i_blocks = |
| 820 | (inode->i_size + inode->i_blksize - 1) >> sb->s_blocksize_bits; |
| 821 | } |
| 822 | |
| 823 | /** |
| 824 | * v9fs_qid2ino - convert qid into inode number |
| 825 | * @qid: qid to hash |
| 826 | * |
| 827 | * BUG: potential for inode number collisions? |
| 828 | */ |
| 829 | |
| 830 | ino_t v9fs_qid2ino(struct v9fs_qid *qid) |
| 831 | { |
| 832 | u64 path = qid->path + 2; |
| 833 | ino_t i = 0; |
| 834 | |
| 835 | if (sizeof(ino_t) == sizeof(path)) |
| 836 | memcpy(&i, &path, sizeof(ino_t)); |
| 837 | else |
| 838 | i = (ino_t) (path ^ (path >> 32)); |
| 839 | |
| 840 | return i; |
| 841 | } |
| 842 | |
| 843 | /** |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 844 | * v9fs_readlink - read a symlink's location (internal version) |
| 845 | * @dentry: dentry for symlink |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 846 | * @buffer: buffer to load symlink location into |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 847 | * @buflen: length of buffer |
| 848 | * |
| 849 | */ |
| 850 | |
| 851 | static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen) |
| 852 | { |
| 853 | int retval = -EPERM; |
| 854 | |
| 855 | struct v9fs_fcall *fcall = NULL; |
| 856 | struct v9fs_session_info *v9ses = v9fs_inode2v9ses(dentry->d_inode); |
Latchesar Ionkov | 0b8dd17 | 2005-09-27 21:45:24 -0700 | [diff] [blame] | 857 | struct v9fs_fid *fid = v9fs_fid_lookup(dentry); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 858 | |
| 859 | if (!fid) { |
| 860 | dprintk(DEBUG_ERROR, "could not resolve fid from dentry\n"); |
| 861 | retval = -EBADF; |
| 862 | goto FreeFcall; |
| 863 | } |
| 864 | |
| 865 | if (!v9ses->extended) { |
| 866 | retval = -EBADF; |
| 867 | dprintk(DEBUG_ERROR, "not extended\n"); |
| 868 | goto FreeFcall; |
| 869 | } |
| 870 | |
| 871 | dprintk(DEBUG_VFS, " %s\n", dentry->d_name.name); |
| 872 | retval = v9fs_t_stat(v9ses, fid->fid, &fcall); |
| 873 | |
| 874 | if (retval < 0) { |
| 875 | dprintk(DEBUG_ERROR, "stat error\n"); |
| 876 | goto FreeFcall; |
| 877 | } |
| 878 | |
| 879 | if (!fcall) |
| 880 | return -EIO; |
| 881 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 882 | if (!(fcall->params.rstat.stat.mode & V9FS_DMSYMLINK)) { |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 883 | retval = -EINVAL; |
| 884 | goto FreeFcall; |
| 885 | } |
| 886 | |
| 887 | /* copy extension buffer into buffer */ |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 888 | if (fcall->params.rstat.stat.extension.len < buflen) |
| 889 | buflen = fcall->params.rstat.stat.extension.len; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 890 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 891 | memcpy(buffer, fcall->params.rstat.stat.extension.str, buflen - 1); |
| 892 | buffer[buflen-1] = 0; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 893 | |
| 894 | retval = buflen; |
| 895 | |
| 896 | FreeFcall: |
| 897 | kfree(fcall); |
| 898 | |
| 899 | return retval; |
| 900 | } |
| 901 | |
| 902 | /** |
| 903 | * v9fs_vfs_readlink - read a symlink's location |
| 904 | * @dentry: dentry for symlink |
| 905 | * @buf: buffer to load symlink location into |
| 906 | * @buflen: length of buffer |
| 907 | * |
| 908 | */ |
| 909 | |
| 910 | static int v9fs_vfs_readlink(struct dentry *dentry, char __user * buffer, |
| 911 | int buflen) |
| 912 | { |
| 913 | int retval; |
| 914 | int ret; |
| 915 | char *link = __getname(); |
| 916 | |
Latchesar Ionkov | a1f9d8d | 2005-09-22 21:43:52 -0700 | [diff] [blame] | 917 | if (buflen > PATH_MAX) |
| 918 | buflen = PATH_MAX; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 919 | |
| 920 | dprintk(DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry); |
| 921 | |
| 922 | retval = v9fs_readlink(dentry, link, buflen); |
| 923 | |
| 924 | if (retval > 0) { |
| 925 | if ((ret = copy_to_user(buffer, link, retval)) != 0) { |
| 926 | dprintk(DEBUG_ERROR, "problem copying to user: %d\n", |
| 927 | ret); |
| 928 | retval = ret; |
| 929 | } |
| 930 | } |
| 931 | |
Davi Arnaut | ce44eeb | 2005-11-07 00:59:36 -0800 | [diff] [blame] | 932 | __putname(link); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 933 | return retval; |
| 934 | } |
| 935 | |
| 936 | /** |
| 937 | * v9fs_vfs_follow_link - follow a symlink path |
| 938 | * @dentry: dentry for symlink |
| 939 | * @nd: nameidata |
| 940 | * |
| 941 | */ |
| 942 | |
| 943 | static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd) |
| 944 | { |
| 945 | int len = 0; |
| 946 | char *link = __getname(); |
| 947 | |
| 948 | dprintk(DEBUG_VFS, "%s n", dentry->d_name.name); |
| 949 | |
| 950 | if (!link) |
| 951 | link = ERR_PTR(-ENOMEM); |
| 952 | else { |
| 953 | len = v9fs_readlink(dentry, link, strlen(link)); |
| 954 | |
| 955 | if (len < 0) { |
Davi Arnaut | ce44eeb | 2005-11-07 00:59:36 -0800 | [diff] [blame] | 956 | __putname(link); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 957 | link = ERR_PTR(len); |
| 958 | } else |
| 959 | link[len] = 0; |
| 960 | } |
| 961 | nd_set_link(nd, link); |
| 962 | |
| 963 | return NULL; |
| 964 | } |
| 965 | |
| 966 | /** |
| 967 | * v9fs_vfs_put_link - release a symlink path |
| 968 | * @dentry: dentry for symlink |
| 969 | * @nd: nameidata |
| 970 | * |
| 971 | */ |
| 972 | |
| 973 | static void v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p) |
| 974 | { |
| 975 | char *s = nd_get_link(nd); |
| 976 | |
| 977 | dprintk(DEBUG_VFS, " %s %s\n", dentry->d_name.name, s); |
| 978 | if (!IS_ERR(s)) |
Davi Arnaut | ce44eeb | 2005-11-07 00:59:36 -0800 | [diff] [blame] | 979 | __putname(s); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 980 | } |
| 981 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 982 | static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry, |
| 983 | int mode, const char *extension) |
| 984 | { |
| 985 | int err, retval; |
| 986 | struct v9fs_session_info *v9ses; |
| 987 | struct v9fs_fcall *fcall; |
| 988 | struct v9fs_fid *fid; |
| 989 | struct v9fs_wstat wstat; |
| 990 | |
| 991 | v9ses = v9fs_inode2v9ses(dir); |
| 992 | retval = -EPERM; |
| 993 | fcall = NULL; |
| 994 | |
| 995 | if (!v9ses->extended) { |
| 996 | dprintk(DEBUG_ERROR, "not extended\n"); |
| 997 | goto free_mem; |
| 998 | } |
| 999 | |
| 1000 | /* issue a create */ |
| 1001 | retval = v9fs_create(dir, dentry, mode, 0); |
| 1002 | if (retval != 0) |
| 1003 | goto free_mem; |
| 1004 | |
| 1005 | fid = v9fs_fid_get_created(dentry); |
| 1006 | if (!fid) { |
| 1007 | dprintk(DEBUG_ERROR, "couldn't resolve fid from dentry\n"); |
| 1008 | goto free_mem; |
| 1009 | } |
| 1010 | |
| 1011 | /* issue a Twstat */ |
| 1012 | v9fs_blank_wstat(&wstat); |
| 1013 | wstat.muid = v9ses->name; |
| 1014 | wstat.extension = (char *) extension; |
| 1015 | retval = v9fs_t_wstat(v9ses, fid->fid, &wstat, &fcall); |
| 1016 | if (retval < 0) { |
| 1017 | PRINT_FCALL_ERROR("wstat error", fcall); |
| 1018 | goto free_mem; |
| 1019 | } |
| 1020 | |
| 1021 | err = v9fs_t_clunk(v9ses, fid->fid); |
| 1022 | if (err < 0) { |
| 1023 | dprintk(DEBUG_ERROR, "clunk failed: %d\n", err); |
| 1024 | goto free_mem; |
| 1025 | } |
| 1026 | |
| 1027 | d_drop(dentry); /* FID - will this also clunk? */ |
| 1028 | |
| 1029 | free_mem: |
| 1030 | kfree(fcall); |
| 1031 | return retval; |
| 1032 | } |
| 1033 | |
| 1034 | /** |
| 1035 | * v9fs_vfs_symlink - helper function to create symlinks |
| 1036 | * @dir: directory inode containing symlink |
| 1037 | * @dentry: dentry for symlink |
| 1038 | * @symname: symlink data |
| 1039 | * |
| 1040 | * See 9P2000.u RFC for more information |
| 1041 | * |
| 1042 | */ |
| 1043 | |
| 1044 | static int |
| 1045 | v9fs_vfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) |
| 1046 | { |
| 1047 | dprintk(DEBUG_VFS, " %lu,%s,%s\n", dir->i_ino, dentry->d_name.name, |
| 1048 | symname); |
| 1049 | |
| 1050 | return v9fs_vfs_mkspecial(dir, dentry, S_IFLNK, symname); |
| 1051 | } |
| 1052 | |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1053 | /** |
| 1054 | * v9fs_vfs_link - create a hardlink |
| 1055 | * @old_dentry: dentry for file to link to |
| 1056 | * @dir: inode destination for new link |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 1057 | * @dentry: dentry for link |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1058 | * |
| 1059 | */ |
| 1060 | |
| 1061 | /* XXX - lots of code dup'd from symlink and creates, |
| 1062 | * figure out a better reuse strategy |
| 1063 | */ |
| 1064 | |
| 1065 | static int |
| 1066 | v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir, |
| 1067 | struct dentry *dentry) |
| 1068 | { |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 1069 | int retval; |
| 1070 | struct v9fs_fid *oldfid; |
| 1071 | char *name; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1072 | |
| 1073 | dprintk(DEBUG_VFS, " %lu,%s,%s\n", dir->i_ino, dentry->d_name.name, |
| 1074 | old_dentry->d_name.name); |
| 1075 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 1076 | oldfid = v9fs_fid_lookup(old_dentry); |
| 1077 | if (!oldfid) { |
| 1078 | dprintk(DEBUG_ERROR, "can't find oldfid\n"); |
| 1079 | return -EPERM; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1080 | } |
| 1081 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 1082 | name = __getname(); |
| 1083 | sprintf(name, "hardlink(%d)\n", oldfid->fid); |
| 1084 | retval = v9fs_vfs_mkspecial(dir, dentry, V9FS_DMLINK, name); |
| 1085 | __putname(name); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1086 | |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1087 | return retval; |
| 1088 | } |
| 1089 | |
| 1090 | /** |
| 1091 | * v9fs_vfs_mknod - create a special file |
| 1092 | * @dir: inode destination for new link |
| 1093 | * @dentry: dentry for file |
| 1094 | * @mode: mode for creation |
| 1095 | * @dev_t: device associated with special file |
| 1096 | * |
| 1097 | */ |
| 1098 | |
| 1099 | static int |
| 1100 | v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev) |
| 1101 | { |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 1102 | int retval; |
| 1103 | char *name; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1104 | |
| 1105 | dprintk(DEBUG_VFS, " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino, |
| 1106 | dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev)); |
| 1107 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 1108 | if (!new_valid_dev(rdev)) |
| 1109 | return -EINVAL; |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 1110 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 1111 | name = __getname(); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1112 | /* build extension */ |
| 1113 | if (S_ISBLK(mode)) |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 1114 | sprintf(name, "b %u %u", MAJOR(rdev), MINOR(rdev)); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1115 | else if (S_ISCHR(mode)) |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 1116 | sprintf(name, "c %u %u", MAJOR(rdev), MINOR(rdev)); |
Eric Van Hensbergen | 73c592b | 2005-09-09 13:04:26 -0700 | [diff] [blame] | 1117 | else if (S_ISFIFO(mode)) |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 1118 | *name = 0; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1119 | else { |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 1120 | __putname(name); |
| 1121 | return -EINVAL; |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1122 | } |
| 1123 | |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 1124 | retval = v9fs_vfs_mkspecial(dir, dentry, mode, name); |
| 1125 | __putname(name); |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1126 | |
| 1127 | return retval; |
| 1128 | } |
| 1129 | |
Eric Van Hensbergen | b501611 | 2005-09-09 13:04:27 -0700 | [diff] [blame] | 1130 | static struct inode_operations v9fs_dir_inode_operations_ext = { |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1131 | .create = v9fs_vfs_create, |
| 1132 | .lookup = v9fs_vfs_lookup, |
| 1133 | .symlink = v9fs_vfs_symlink, |
| 1134 | .link = v9fs_vfs_link, |
| 1135 | .unlink = v9fs_vfs_unlink, |
| 1136 | .mkdir = v9fs_vfs_mkdir, |
| 1137 | .rmdir = v9fs_vfs_rmdir, |
| 1138 | .mknod = v9fs_vfs_mknod, |
| 1139 | .rename = v9fs_vfs_rename, |
| 1140 | .readlink = v9fs_vfs_readlink, |
| 1141 | .getattr = v9fs_vfs_getattr, |
| 1142 | .setattr = v9fs_vfs_setattr, |
| 1143 | }; |
| 1144 | |
Eric Van Hensbergen | b501611 | 2005-09-09 13:04:27 -0700 | [diff] [blame] | 1145 | static struct inode_operations v9fs_dir_inode_operations = { |
| 1146 | .create = v9fs_vfs_create, |
| 1147 | .lookup = v9fs_vfs_lookup, |
| 1148 | .unlink = v9fs_vfs_unlink, |
| 1149 | .mkdir = v9fs_vfs_mkdir, |
| 1150 | .rmdir = v9fs_vfs_rmdir, |
| 1151 | .mknod = v9fs_vfs_mknod, |
| 1152 | .rename = v9fs_vfs_rename, |
| 1153 | .getattr = v9fs_vfs_getattr, |
| 1154 | .setattr = v9fs_vfs_setattr, |
| 1155 | }; |
| 1156 | |
Eric Van Hensbergen | 2bad847 | 2005-09-09 13:04:19 -0700 | [diff] [blame] | 1157 | static struct inode_operations v9fs_file_inode_operations = { |
| 1158 | .getattr = v9fs_vfs_getattr, |
| 1159 | .setattr = v9fs_vfs_setattr, |
| 1160 | }; |
| 1161 | |
| 1162 | static struct inode_operations v9fs_symlink_inode_operations = { |
| 1163 | .readlink = v9fs_vfs_readlink, |
| 1164 | .follow_link = v9fs_vfs_follow_link, |
| 1165 | .put_link = v9fs_vfs_put_link, |
| 1166 | .getattr = v9fs_vfs_getattr, |
| 1167 | .setattr = v9fs_vfs_setattr, |
| 1168 | }; |