fs/nfs/proc.c

   1 /*
   2  *  linux/fs/nfs/proc.c
   3  *
   4  *  Copyright (C) 1992, 1993, 1994  Rick Sladkey
   5  *
   6  *  OS-independent nfs remote procedure call functions
   7  *
   8  *  Tuned by Alan Cox <A.Cox@swansea.ac.uk> for >3K buffers
   9  *  so at last we can have decent(ish) throughput off a
  10  *  Sun server.
  11  *
  12  *  Coding optimized and cleaned up by Florian La Roche.
  13  *  Note: Error returns are optimized for NFS_OK, which isn't translated via
  14  *  nfs_stat_to_errno(), but happens to be already the right return code.
  15  *
  16  *  Also, the code currently doesn't check the size of the packet, when
  17  *  it decodes the packet.
  18  *
  19  *  Feel free to fix it and mail me the diffs if it worries you.
  20  *
  21  *  Completely rewritten to support the new RPC call interface;
  22  *  rewrote and moved the entire XDR stuff to xdr.c
  23  *  --Olaf Kirch June 1996
  24  *
  25  *  The code below initializes all auto variables explicitly, otherwise
  26  *  it will fail to work as a module (gcc generates a memset call for an
  27  *  incomplete struct).
  28  */
  29
  30 #include <linux/types.h>
  31 #include <linux/param.h>
  32 #include <linux/slab.h>
  33 #include <linux/time.h>
  34 #include <linux/mm.h>
  35 #include <linux/utsname.h>
  36 #include <linux/errno.h>
  37 #include <linux/string.h>
  38 #include <linux/in.h>
  39 #include <linux/pagemap.h>
  40 #include <linux/sunrpc/clnt.h>
  41 #include <linux/nfs.h>
  42 #include <linux/nfs2.h>
  43 #include <linux/nfs_fs.h>
  44 #include <linux/nfs_page.h>
  45 #include <linux/lockd/bind.h>
  46 #include <linux/smp_lock.h>
  47
  48 #define NFSDBG_FACILITY         NFSDBG_PROC
  49
  50 extern struct rpc_procinfo nfs_procedures[];
  51
  52 /*
  53  * Bare-bones access to getattr: this is for nfs_read_super.
  54  */
  55 static int
  56 nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
  57                   struct nfs_fsinfo *info)
  58 {
  59         struct nfs_fattr *fattr = info->fattr;
  60         struct nfs2_fsstat fsinfo;
  61         int status;
  62
  63         dprintk("%s: call getattr\n", __FUNCTION__);
  64         fattr->valid = 0;
  65         status = rpc_call(server->client_sys, NFSPROC_GETATTR, fhandle, fattr, 0);
  66         dprintk("%s: reply getattr: %d\n", __FUNCTION__, status);
  67         if (status)
  68                 return status;
  69         dprintk("%s: call statfs\n", __FUNCTION__);
  70         status = rpc_call(server->client_sys, NFSPROC_STATFS, fhandle, &fsinfo, 0);
  71         dprintk("%s: reply statfs: %d\n", __FUNCTION__, status);
  72         if (status)
  73                 return status;
  74         info->rtmax  = NFS_MAXDATA;
  75         info->rtpref = fsinfo.tsize;
  76         info->rtmult = fsinfo.bsize;
  77         info->wtmax  = NFS_MAXDATA;
  78         info->wtpref = fsinfo.tsize;
  79         info->wtmult = fsinfo.bsize;
  80         info->dtpref = fsinfo.tsize;
  81         info->maxfilesize = 0x7FFFFFFF;
  82         info->lease_time = 0;
  83         return 0;
  84 }
  85
  86 /*
  87  * One function for each procedure in the NFS protocol.
  88  */
  89 static int
  90 nfs_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
  91                 struct nfs_fattr *fattr)
  92 {
  93         int     status;
  94
  95         dprintk("NFS call  getattr\n");
  96         fattr->valid = 0;
  97         status = rpc_call(server->client, NFSPROC_GETATTR,
  98                                 fhandle, fattr, 0);
  99         dprintk("NFS reply getattr: %d\n", status);
 100         return status;
 101 }
 102
 103 static int
 104 nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 105                  struct iattr *sattr)
 106 {
 107         struct inode *inode = dentry->d_inode;
 108         struct nfs_sattrargs    arg = {
 109                 .fh     = NFS_FH(inode),
 110                 .sattr  = sattr
 111         };
 112         int     status;
 113
 114         dprintk("NFS call  setattr\n");
 115         fattr->valid = 0;
 116         status = rpc_call(NFS_CLIENT(inode), NFSPROC_SETATTR, &arg, fattr, 0);
 117         if (status == 0)
 118                 nfs_setattr_update_inode(inode, sattr);
 119         dprintk("NFS reply setattr: %d\n", status);
 120         return status;
 121 }
 122
 123 static int
 124 nfs_proc_lookup(struct inode *dir, struct qstr *name,
 125                 struct nfs_fh *fhandle, struct nfs_fattr *fattr)
 126 {
 127         struct nfs_diropargs    arg = {
 128                 .fh             = NFS_FH(dir),
 129                 .name           = name->name,
 130                 .len            = name->len
 131         };
 132         struct nfs_diropok      res = {
 133                 .fh             = fhandle,
 134                 .fattr          = fattr
 135         };
 136         int                     status;
 137
 138         dprintk("NFS call  lookup %s\n", name->name);
 139         fattr->valid = 0;
 140         status = rpc_call(NFS_CLIENT(dir), NFSPROC_LOOKUP, &arg, &res, 0);
 141         dprintk("NFS reply lookup: %d\n", status);
 142         return status;
 143 }
 144
 145 static int nfs_proc_readlink(struct inode *inode, struct page *page,
 146                 unsigned int pgbase, unsigned int pglen)
 147 {
 148         struct nfs_readlinkargs args = {
 149                 .fh             = NFS_FH(inode),
 150                 .pgbase         = pgbase,
 151                 .pglen          = pglen,
 152                 .pages          = &page
 153         };
 154         int                     status;
 155
 156         dprintk("NFS call  readlink\n");
 157         status = rpc_call(NFS_CLIENT(inode), NFSPROC_READLINK, &args, NULL, 0);
 158         dprintk("NFS reply readlink: %d\n", status);
 159         return status;
 160 }
 161
 162 static int nfs_proc_read(struct nfs_read_data *rdata)
 163 {
 164         int                     flags = rdata->flags;
 165         struct inode *          inode = rdata->inode;
 166         struct nfs_fattr *      fattr = rdata->res.fattr;
 167         struct rpc_message      msg = {
 168                 .rpc_proc       = &nfs_procedures[NFSPROC_READ],
 169                 .rpc_argp       = &rdata->args,
 170                 .rpc_resp       = &rdata->res,
 171                 .rpc_cred       = rdata->cred,
 172         };
 173         int                     status;
 174
 175         dprintk("NFS call  read %d @ %Ld\n", rdata->args.count,
 176                         (long long) rdata->args.offset);
 177         fattr->valid = 0;
 178         status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
 179         if (status >= 0) {
 180                 nfs_refresh_inode(inode, fattr);
 181                 /* Emulate the eof flag, which isn't normally needed in NFSv2
 182                  * as it is guaranteed to always return the file attributes
 183                  */
 184                 if (rdata->args.offset + rdata->args.count >= fattr->size)
 185                         rdata->res.eof = 1;
 186         }
 187         dprintk("NFS reply read: %d\n", status);
 188         return status;
 189 }
 190
 191 static int nfs_proc_write(struct nfs_write_data *wdata)
 192 {
 193         int                     flags = wdata->flags;
 194         struct inode *          inode = wdata->inode;
 195         struct nfs_fattr *      fattr = wdata->res.fattr;
 196         struct rpc_message      msg = {
 197                 .rpc_proc       = &nfs_procedures[NFSPROC_WRITE],
 198                 .rpc_argp       = &wdata->args,
 199                 .rpc_resp       = &wdata->res,
 200                 .rpc_cred       = wdata->cred,
 201         };
 202         int                     status;
 203
 204         dprintk("NFS call  write %d @ %Ld\n", wdata->args.count,
 205                         (long long) wdata->args.offset);
 206         fattr->valid = 0;
 207         status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
 208         if (status >= 0) {
 209                 nfs_refresh_inode(inode, fattr);
 210                 wdata->res.count = wdata->args.count;
 211                 wdata->verf.committed = NFS_FILE_SYNC;
 212         }
 213         dprintk("NFS reply write: %d\n", status);
 214         return status < 0? status : wdata->res.count;
 215 }
 216
 217 static int
 218 nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 219                 int flags)
 220 {
 221         struct nfs_fh           fhandle;
 222         struct nfs_fattr        fattr;
 223         struct nfs_createargs   arg = {
 224                 .fh             = NFS_FH(dir),
 225                 .name           = dentry->d_name.name,
 226                 .len            = dentry->d_name.len,
 227                 .sattr          = sattr
 228         };
 229         struct nfs_diropok      res = {
 230                 .fh             = &fhandle,
 231                 .fattr          = &fattr
 232         };
 233         int                     status;
 234
 235         fattr.valid = 0;
 236         dprintk("NFS call  create %s\n", dentry->d_name.name);
 237         status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
 238         if (status == 0)
 239                 status = nfs_instantiate(dentry, &fhandle, &fattr);
 240         dprintk("NFS reply create: %d\n", status);
 241         return status;
 242 }
 243
 244 /*
 245  * In NFSv2, mknod is grafted onto the create call.
 246  */
 247 static int
 248 nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 249                dev_t rdev)
 250 {
 251         struct nfs_fh fhandle;
 252         struct nfs_fattr fattr;
 253         struct nfs_createargs   arg = {
 254                 .fh             = NFS_FH(dir),
 255                 .name           = dentry->d_name.name,
 256                 .len            = dentry->d_name.len,
 257                 .sattr          = sattr
 258         };
 259         struct nfs_diropok      res = {
 260                 .fh             = &fhandle,
 261                 .fattr          = &fattr
 262         };
 263         int status, mode;
 264
 265         dprintk("NFS call  mknod %s\n", dentry->d_name.name);
 266
 267         mode = sattr->ia_mode;
 268         if (S_ISFIFO(mode)) {
 269                 sattr->ia_mode = (mode & ~S_IFMT) | S_IFCHR;
 270                 sattr->ia_valid &= ~ATTR_SIZE;
 271         } else if (S_ISCHR(mode) || S_ISBLK(mode)) {
 272                 sattr->ia_valid |= ATTR_SIZE;
 273                 sattr->ia_size = new_encode_dev(rdev);/* get out your barf bag */
 274         }
 275
 276         fattr.valid = 0;
 277         status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
 278
 279         if (status == -EINVAL && S_ISFIFO(mode)) {
 280                 sattr->ia_mode = mode;
 281                 fattr.valid = 0;
 282                 status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
 283         }
 284         if (status == 0)
 285                 status = nfs_instantiate(dentry, &fhandle, &fattr);
 286         dprintk("NFS reply mknod: %d\n", status);
 287         return status;
 288 }
 289
 290 static int
 291 nfs_proc_remove(struct inode *dir, struct qstr *name)
 292 {
 293         struct nfs_diropargs    arg = {
 294                 .fh             = NFS_FH(dir),
 295                 .name           = name->name,
 296                 .len            = name->len
 297         };
 298         struct rpc_message      msg = {
 299                 .rpc_proc       = &nfs_procedures[NFSPROC_REMOVE],
 300                 .rpc_argp       = &arg,
 301                 .rpc_resp       = NULL,
 302                 .rpc_cred       = NULL
 303         };
 304         int                     status;
 305
 306         dprintk("NFS call  remove %s\n", name->name);
 307         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 308
 309         dprintk("NFS reply remove: %d\n", status);
 310         return status;
 311 }
 312
 313 static int
 314 nfs_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr *name)
 315 {
 316         struct nfs_diropargs    *arg;
 317
 318         arg = (struct nfs_diropargs *)kmalloc(sizeof(*arg), GFP_KERNEL);
 319         if (!arg)
 320                 return -ENOMEM;
 321         arg->fh = NFS_FH(dir->d_inode);
 322         arg->name = name->name;
 323         arg->len = name->len;
 324         msg->rpc_proc = &nfs_procedures[NFSPROC_REMOVE];
 325         msg->rpc_argp = arg;
 326         return 0;
 327 }
 328
 329 static int
 330 nfs_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
 331 {
 332         struct rpc_message *msg = &task->tk_msg;
 333
 334         if (msg->rpc_argp)
 335                 kfree(msg->rpc_argp);
 336         return 0;
 337 }
 338
 339 static int
 340 nfs_proc_rename(struct inode *old_dir, struct qstr *old_name,
 341                 struct inode *new_dir, struct qstr *new_name)
 342 {
 343         struct nfs_renameargs   arg = {
 344                 .fromfh         = NFS_FH(old_dir),
 345                 .fromname       = old_name->name,
 346                 .fromlen        = old_name->len,
 347                 .tofh           = NFS_FH(new_dir),
 348                 .toname         = new_name->name,
 349                 .tolen          = new_name->len
 350         };
 351         int                     status;
 352
 353         dprintk("NFS call  rename %s -> %s\n", old_name->name, new_name->name);
 354         status = rpc_call(NFS_CLIENT(old_dir), NFSPROC_RENAME, &arg, NULL, 0);
 355         dprintk("NFS reply rename: %d\n", status);
 356         return status;
 357 }
 358
 359 static int
 360 nfs_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
 361 {
 362         struct nfs_linkargs     arg = {
 363                 .fromfh         = NFS_FH(inode),
 364                 .tofh           = NFS_FH(dir),
 365                 .toname         = name->name,
 366                 .tolen          = name->len
 367         };
 368         int                     status;
 369
 370         dprintk("NFS call  link %s\n", name->name);
 371         status = rpc_call(NFS_CLIENT(inode), NFSPROC_LINK, &arg, NULL, 0);
 372         dprintk("NFS reply link: %d\n", status);
 373         return status;
 374 }
 375
 376 static int
 377 nfs_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path,
 378                  struct iattr *sattr, struct nfs_fh *fhandle,
 379                  struct nfs_fattr *fattr)
 380 {
 381         struct nfs_symlinkargs  arg = {
 382                 .fromfh         = NFS_FH(dir),
 383                 .fromname       = name->name,
 384                 .fromlen        = name->len,
 385                 .topath         = path->name,
 386                 .tolen          = path->len,
 387                 .sattr          = sattr
 388         };
 389         int                     status;
 390
 391         if (path->len > NFS2_MAXPATHLEN)
 392                 return -ENAMETOOLONG;
 393         dprintk("NFS call  symlink %s -> %s\n", name->name, path->name);
 394         fattr->valid = 0;
 395         fhandle->size = 0;
 396         status = rpc_call(NFS_CLIENT(dir), NFSPROC_SYMLINK, &arg, NULL, 0);
 397         dprintk("NFS reply symlink: %d\n", status);
 398         return status;
 399 }
 400
 401 static int
 402 nfs_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
 403 {
 404         struct nfs_fh fhandle;
 405         struct nfs_fattr fattr;
 406         struct nfs_createargs   arg = {
 407                 .fh             = NFS_FH(dir),
 408                 .name           = dentry->d_name.name,
 409                 .len            = dentry->d_name.len,
 410                 .sattr          = sattr
 411         };
 412         struct nfs_diropok      res = {
 413                 .fh             = &fhandle,
 414                 .fattr          = &fattr
 415         };
 416         int                     status;
 417
 418         dprintk("NFS call  mkdir %s\n", dentry->d_name.name);
 419         fattr.valid = 0;
 420         status = rpc_call(NFS_CLIENT(dir), NFSPROC_MKDIR, &arg, &res, 0);
 421         if (status == 0)
 422                 status = nfs_instantiate(dentry, &fhandle, &fattr);
 423         dprintk("NFS reply mkdir: %d\n", status);
 424         return status;
 425 }
 426
 427 static int
 428 nfs_proc_rmdir(struct inode *dir, struct qstr *name)
 429 {
 430         struct nfs_diropargs    arg = {
 431                 .fh             = NFS_FH(dir),
 432                 .name           = name->name,
 433                 .len            = name->len
 434         };
 435         int                     status;
 436
 437         dprintk("NFS call  rmdir %s\n", name->name);
 438         status = rpc_call(NFS_CLIENT(dir), NFSPROC_RMDIR, &arg, NULL, 0);
 439         dprintk("NFS reply rmdir: %d\n", status);
 440         return status;
 441 }
 442
 443 /*
 444  * The READDIR implementation is somewhat hackish - we pass a temporary
 445  * buffer to the encode function, which installs it in the receive
 446  * the receive iovec. The decode function just parses the reply to make
 447  * sure it is syntactically correct; the entries itself are decoded
 448  * from nfs_readdir by calling the decode_entry function directly.
 449  */
 450 static int
 451 nfs_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
 452                  u64 cookie, struct page *page, unsigned int count, int plus)
 453 {
 454         struct inode            *dir = dentry->d_inode;
 455         struct nfs_readdirargs  arg = {
 456                 .fh             = NFS_FH(dir),
 457                 .cookie         = cookie,
 458                 .count          = count,
 459                 .pages          = &page
 460         };
 461         struct rpc_message      msg = {
 462                 .rpc_proc       = &nfs_procedures[NFSPROC_READDIR],
 463                 .rpc_argp       = &arg,
 464                 .rpc_resp       = NULL,
 465                 .rpc_cred       = cred
 466         };
 467         int                     status;
 468
 469         lock_kernel();
 470
 471         dprintk("NFS call  readdir %d\n", (unsigned int)cookie);
 472         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 473
 474         dprintk("NFS reply readdir: %d\n", status);
 475         unlock_kernel();
 476         return status;
 477 }
 478
 479 static int
 480 nfs_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
 481                         struct nfs_fsstat *stat)
 482 {
 483         struct nfs2_fsstat fsinfo;
 484         int     status;
 485
 486         dprintk("NFS call  statfs\n");
 487         stat->fattr->valid = 0;
 488         status = rpc_call(server->client, NFSPROC_STATFS, fhandle, &fsinfo, 0);
 489         dprintk("NFS reply statfs: %d\n", status);
 490         if (status)
 491                 goto out;
 492         stat->tbytes = (u64)fsinfo.blocks * fsinfo.bsize;
 493         stat->fbytes = (u64)fsinfo.bfree  * fsinfo.bsize;
 494         stat->abytes = (u64)fsinfo.bavail * fsinfo.bsize;
 495         stat->tfiles = 0;
 496         stat->ffiles = 0;
 497         stat->afiles = 0;
 498 out:
 499         return status;
 500 }
 501
 502 static int
 503 nfs_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
 504                         struct nfs_fsinfo *info)
 505 {
 506         struct nfs2_fsstat fsinfo;
 507         int     status;
 508
 509         dprintk("NFS call  fsinfo\n");
 510         info->fattr->valid = 0;
 511         status = rpc_call(server->client, NFSPROC_STATFS, fhandle, &fsinfo, 0);
 512         dprintk("NFS reply fsinfo: %d\n", status);
 513         if (status)
 514                 goto out;
 515         info->rtmax  = NFS_MAXDATA;
 516         info->rtpref = fsinfo.tsize;
 517         info->rtmult = fsinfo.bsize;
 518         info->wtmax  = NFS_MAXDATA;
 519         info->wtpref = fsinfo.tsize;
 520         info->wtmult = fsinfo.bsize;
 521         info->dtpref = fsinfo.tsize;
 522         info->maxfilesize = 0x7FFFFFFF;
 523         info->lease_time = 0;
 524 out:
 525         return status;
 526 }
 527
 528 static int
 529 nfs_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
 530                   struct nfs_pathconf *info)
 531 {
 532         info->max_link = 0;
 533         info->max_namelen = NFS2_MAXNAMLEN;
 534         return 0;
 535 }
 536
 537 extern u32 * nfs_decode_dirent(u32 *, struct nfs_entry *, int);
 538
 539 static void
 540 nfs_read_done(struct rpc_task *task)
 541 {
 542         struct nfs_read_data *data = (struct nfs_read_data *) task->tk_calldata;
 543
 544         if (task->tk_status >= 0) {
 545                 nfs_refresh_inode(data->inode, data->res.fattr);
 546                 /* Emulate the eof flag, which isn't normally needed in NFSv2
 547                  * as it is guaranteed to always return the file attributes
 548                  */
 549                 if (data->args.offset + data->args.count >= data->res.fattr->size)
 550                         data->res.eof = 1;
 551         }
 552         nfs_readpage_result(task);
 553 }
 554
 555 static void
 556 nfs_proc_read_setup(struct nfs_read_data *data)
 557 {
 558         struct rpc_task         *task = &data->task;
 559         struct inode            *inode = data->inode;
 560         int                     flags;
 561         struct rpc_message      msg = {
 562                 .rpc_proc       = &nfs_procedures[NFSPROC_READ],
 563                 .rpc_argp       = &data->args,
 564                 .rpc_resp       = &data->res,
 565                 .rpc_cred       = data->cred,
 566         };
 567
 568         /* N.B. Do we need to test? Never called for swapfile inode */
 569         flags = RPC_TASK_ASYNC | (IS_SWAPFILE(inode)? NFS_RPC_SWAPFLAGS : 0);
 570
 571         /* Finalize the task. */
 572         rpc_init_task(task, NFS_CLIENT(inode), nfs_read_done, flags);
 573         rpc_call_setup(task, &msg, 0);
 574 }
 575
 576 static void
 577 nfs_write_done(struct rpc_task *task)
 578 {
 579         struct nfs_write_data *data = (struct nfs_write_data *) task->tk_calldata;
 580
 581         if (task->tk_status >= 0)
 582                 nfs_refresh_inode(data->inode, data->res.fattr);
 583         nfs_writeback_done(task);
 584 }
 585
 586 static void
 587 nfs_proc_write_setup(struct nfs_write_data *data, int how)
 588 {
 589         struct rpc_task         *task = &data->task;
 590         struct inode            *inode = data->inode;
 591         int                     flags;
 592         struct rpc_message      msg = {
 593                 .rpc_proc       = &nfs_procedures[NFSPROC_WRITE],
 594                 .rpc_argp       = &data->args,
 595                 .rpc_resp       = &data->res,
 596                 .rpc_cred       = data->cred,
 597         };
 598
 599         /* Note: NFSv2 ignores @stable and always uses NFS_FILE_SYNC */
 600         data->args.stable = NFS_FILE_SYNC;
 601
 602         /* Set the initial flags for the task.  */
 603         flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
 604
 605         /* Finalize the task. */
 606         rpc_init_task(task, NFS_CLIENT(inode), nfs_write_done, flags);
 607         rpc_call_setup(task, &msg, 0);
 608 }
 609
 610 static void
 611 nfs_proc_commit_setup(struct nfs_write_data *data, int how)
 612 {
 613         BUG();
 614 }
 615
 616 static int
 617 nfs_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
 618 {
 619         return nlmclnt_proc(filp->f_dentry->d_inode, cmd, fl);
 620 }
 621
 622
 623 struct nfs_rpc_ops      nfs_v2_clientops = {
 624         .version        = 2,                   /* protocol version */
 625         .dentry_ops     = &nfs_dentry_operations,
 626         .dir_inode_ops  = &nfs_dir_inode_operations,
 627         .file_inode_ops = &nfs_file_inode_operations,
 628         .getroot        = nfs_proc_get_root,
 629         .getattr        = nfs_proc_getattr,
 630         .setattr        = nfs_proc_setattr,
 631         .lookup         = nfs_proc_lookup,
 632         .access         = NULL,                /* access */
 633         .readlink       = nfs_proc_readlink,
 634         .read           = nfs_proc_read,
 635         .write          = nfs_proc_write,
 636         .commit         = NULL,                /* commit */
 637         .create         = nfs_proc_create,
 638         .remove         = nfs_proc_remove,
 639         .unlink_setup   = nfs_proc_unlink_setup,
 640         .unlink_done    = nfs_proc_unlink_done,
 641         .rename         = nfs_proc_rename,
 642         .link           = nfs_proc_link,
 643         .symlink        = nfs_proc_symlink,
 644         .mkdir          = nfs_proc_mkdir,
 645         .rmdir          = nfs_proc_rmdir,
 646         .readdir        = nfs_proc_readdir,
 647         .mknod          = nfs_proc_mknod,
 648         .statfs         = nfs_proc_statfs,
 649         .fsinfo         = nfs_proc_fsinfo,
 650         .pathconf       = nfs_proc_pathconf,
 651         .decode_dirent  = nfs_decode_dirent,
 652         .read_setup     = nfs_proc_read_setup,
 653         .write_setup    = nfs_proc_write_setup,
 654         .commit_setup   = nfs_proc_commit_setup,
 655         .file_open      = nfs_open,
 656         .file_release   = nfs_release,
 657         .lock           = nfs_proc_lock,
 658 };