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 "internal.h"
  47
  48 #define NFSDBG_FACILITY         NFSDBG_PROC
  49
  50 /*
  51  * Bare-bones access to getattr: this is for nfs_read_super.
  52  */
  53 static int
  54 nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
  55                   struct nfs_fsinfo *info)
  56 {
  57         struct nfs_fattr *fattr = info->fattr;
  58         struct nfs2_fsstat fsinfo;
  59         struct rpc_message msg = {
  60                 .rpc_proc       = &nfs_procedures[NFSPROC_GETATTR],
  61                 .rpc_argp       = fhandle,
  62                 .rpc_resp       = fattr,
  63         };
  64         int status;
  65
  66         dprintk("%s: call getattr\n", __FUNCTION__);
  67         nfs_fattr_init(fattr);
  68         status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
  69         dprintk("%s: reply getattr: %d\n", __FUNCTION__, status);
  70         if (status)
  71                 return status;
  72         dprintk("%s: call statfs\n", __FUNCTION__);
  73         msg.rpc_proc = &nfs_procedures[NFSPROC_STATFS];
  74         msg.rpc_resp = &fsinfo;
  75         status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
  76         dprintk("%s: reply statfs: %d\n", __FUNCTION__, status);
  77         if (status)
  78                 return status;
  79         info->rtmax  = NFS_MAXDATA;
  80         info->rtpref = fsinfo.tsize;
  81         info->rtmult = fsinfo.bsize;
  82         info->wtmax  = NFS_MAXDATA;
  83         info->wtpref = fsinfo.tsize;
  84         info->wtmult = fsinfo.bsize;
  85         info->dtpref = fsinfo.tsize;
  86         info->maxfilesize = 0x7FFFFFFF;
  87         info->lease_time = 0;
  88         return 0;
  89 }
  90
  91 /*
  92  * One function for each procedure in the NFS protocol.
  93  */
  94 static int
  95 nfs_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
  96                 struct nfs_fattr *fattr)
  97 {
  98         struct rpc_message msg = {
  99                 .rpc_proc       = &nfs_procedures[NFSPROC_GETATTR],
 100                 .rpc_argp       = fhandle,
 101                 .rpc_resp       = fattr,
 102         };
 103         int     status;
 104
 105         dprintk("NFS call  getattr\n");
 106         nfs_fattr_init(fattr);
 107         status = rpc_call_sync(server->client, &msg, 0);
 108         dprintk("NFS reply getattr: %d\n", status);
 109         return status;
 110 }
 111
 112 static int
 113 nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
 114                  struct iattr *sattr)
 115 {
 116         struct inode *inode = dentry->d_inode;
 117         struct nfs_sattrargs    arg = {
 118                 .fh     = NFS_FH(inode),
 119                 .sattr  = sattr
 120         };
 121         struct rpc_message msg = {
 122                 .rpc_proc       = &nfs_procedures[NFSPROC_SETATTR],
 123                 .rpc_argp       = &arg,
 124                 .rpc_resp       = fattr,
 125         };
 126         int     status;
 127
 128         /* Mask out the non-modebit related stuff from attr->ia_mode */
 129         sattr->ia_mode &= S_IALLUGO;
 130
 131         dprintk("NFS call  setattr\n");
 132         nfs_fattr_init(fattr);
 133         status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
 134         if (status == 0)
 135                 nfs_setattr_update_inode(inode, sattr);
 136         dprintk("NFS reply setattr: %d\n", status);
 137         return status;
 138 }
 139
 140 static int
 141 nfs_proc_lookup(struct inode *dir, struct qstr *name,
 142                 struct nfs_fh *fhandle, struct nfs_fattr *fattr)
 143 {
 144         struct nfs_diropargs    arg = {
 145                 .fh             = NFS_FH(dir),
 146                 .name           = name->name,
 147                 .len            = name->len
 148         };
 149         struct nfs_diropok      res = {
 150                 .fh             = fhandle,
 151                 .fattr          = fattr
 152         };
 153         struct rpc_message msg = {
 154                 .rpc_proc       = &nfs_procedures[NFSPROC_LOOKUP],
 155                 .rpc_argp       = &arg,
 156                 .rpc_resp       = &res,
 157         };
 158         int                     status;
 159
 160         dprintk("NFS call  lookup %s\n", name->name);
 161         nfs_fattr_init(fattr);
 162         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 163         dprintk("NFS reply lookup: %d\n", status);
 164         return status;
 165 }
 166
 167 static int nfs_proc_readlink(struct inode *inode, struct page *page,
 168                 unsigned int pgbase, unsigned int pglen)
 169 {
 170         struct nfs_readlinkargs args = {
 171                 .fh             = NFS_FH(inode),
 172                 .pgbase         = pgbase,
 173                 .pglen          = pglen,
 174                 .pages          = &page
 175         };
 176         struct rpc_message msg = {
 177                 .rpc_proc       = &nfs_procedures[NFSPROC_READLINK],
 178                 .rpc_argp       = &args,
 179         };
 180         int                     status;
 181
 182         dprintk("NFS call  readlink\n");
 183         status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
 184         dprintk("NFS reply readlink: %d\n", status);
 185         return status;
 186 }
 187
 188 static int
 189 nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 190                 int flags, struct nameidata *nd)
 191 {
 192         struct nfs_fh           fhandle;
 193         struct nfs_fattr        fattr;
 194         struct nfs_createargs   arg = {
 195                 .fh             = NFS_FH(dir),
 196                 .name           = dentry->d_name.name,
 197                 .len            = dentry->d_name.len,
 198                 .sattr          = sattr
 199         };
 200         struct nfs_diropok      res = {
 201                 .fh             = &fhandle,
 202                 .fattr          = &fattr
 203         };
 204         struct rpc_message msg = {
 205                 .rpc_proc       = &nfs_procedures[NFSPROC_CREATE],
 206                 .rpc_argp       = &arg,
 207                 .rpc_resp       = &res,
 208         };
 209         int                     status;
 210
 211         nfs_fattr_init(&fattr);
 212         dprintk("NFS call  create %s\n", dentry->d_name.name);
 213         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 214         if (status == 0)
 215                 status = nfs_instantiate(dentry, &fhandle, &fattr);
 216         dprintk("NFS reply create: %d\n", status);
 217         return status;
 218 }
 219
 220 /*
 221  * In NFSv2, mknod is grafted onto the create call.
 222  */
 223 static int
 224 nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 225                dev_t rdev)
 226 {
 227         struct nfs_fh fhandle;
 228         struct nfs_fattr fattr;
 229         struct nfs_createargs   arg = {
 230                 .fh             = NFS_FH(dir),
 231                 .name           = dentry->d_name.name,
 232                 .len            = dentry->d_name.len,
 233                 .sattr          = sattr
 234         };
 235         struct nfs_diropok      res = {
 236                 .fh             = &fhandle,
 237                 .fattr          = &fattr
 238         };
 239         struct rpc_message msg = {
 240                 .rpc_proc       = &nfs_procedures[NFSPROC_CREATE],
 241                 .rpc_argp       = &arg,
 242                 .rpc_resp       = &res,
 243         };
 244         int status, mode;
 245
 246         dprintk("NFS call  mknod %s\n", dentry->d_name.name);
 247
 248         mode = sattr->ia_mode;
 249         if (S_ISFIFO(mode)) {
 250                 sattr->ia_mode = (mode & ~S_IFMT) | S_IFCHR;
 251                 sattr->ia_valid &= ~ATTR_SIZE;
 252         } else if (S_ISCHR(mode) || S_ISBLK(mode)) {
 253                 sattr->ia_valid |= ATTR_SIZE;
 254                 sattr->ia_size = new_encode_dev(rdev);/* get out your barf bag */
 255         }
 256
 257         nfs_fattr_init(&fattr);
 258         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 259         nfs_mark_for_revalidate(dir);
 260
 261         if (status == -EINVAL && S_ISFIFO(mode)) {
 262                 sattr->ia_mode = mode;
 263                 nfs_fattr_init(&fattr);
 264                 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 265         }
 266         if (status == 0)
 267                 status = nfs_instantiate(dentry, &fhandle, &fattr);
 268         dprintk("NFS reply mknod: %d\n", status);
 269         return status;
 270 }
 271
 272 static int
 273 nfs_proc_remove(struct inode *dir, struct qstr *name)
 274 {
 275         struct nfs_removeargs arg = {
 276                 .fh = NFS_FH(dir),
 277                 .name.len = name->len,
 278                 .name.name = name->name,
 279         };
 280         struct rpc_message msg = {
 281                 .rpc_proc = &nfs_procedures[NFSPROC_REMOVE],
 282                 .rpc_argp = &arg,
 283         };
 284         int                     status;
 285
 286         dprintk("NFS call  remove %s\n", name->name);
 287         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 288         nfs_mark_for_revalidate(dir);
 289
 290         dprintk("NFS reply remove: %d\n", status);
 291         return status;
 292 }
 293
 294 static void
 295 nfs_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
 296 {
 297         msg->rpc_proc = &nfs_procedures[NFSPROC_REMOVE];
 298 }
 299
 300 static int nfs_proc_unlink_done(struct rpc_task *task, struct inode *dir)
 301 {
 302         nfs_mark_for_revalidate(dir);
 303         return 1;
 304 }
 305
 306 static int
 307 nfs_proc_rename(struct inode *old_dir, struct qstr *old_name,
 308                 struct inode *new_dir, struct qstr *new_name)
 309 {
 310         struct nfs_renameargs   arg = {
 311                 .fromfh         = NFS_FH(old_dir),
 312                 .fromname       = old_name->name,
 313                 .fromlen        = old_name->len,
 314                 .tofh           = NFS_FH(new_dir),
 315                 .toname         = new_name->name,
 316                 .tolen          = new_name->len
 317         };
 318         struct rpc_message msg = {
 319                 .rpc_proc       = &nfs_procedures[NFSPROC_RENAME],
 320                 .rpc_argp       = &arg,
 321         };
 322         int                     status;
 323
 324         dprintk("NFS call  rename %s -> %s\n", old_name->name, new_name->name);
 325         status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0);
 326         nfs_mark_for_revalidate(old_dir);
 327         nfs_mark_for_revalidate(new_dir);
 328         dprintk("NFS reply rename: %d\n", status);
 329         return status;
 330 }
 331
 332 static int
 333 nfs_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
 334 {
 335         struct nfs_linkargs     arg = {
 336                 .fromfh         = NFS_FH(inode),
 337                 .tofh           = NFS_FH(dir),
 338                 .toname         = name->name,
 339                 .tolen          = name->len
 340         };
 341         struct rpc_message msg = {
 342                 .rpc_proc       = &nfs_procedures[NFSPROC_LINK],
 343                 .rpc_argp       = &arg,
 344         };
 345         int                     status;
 346
 347         dprintk("NFS call  link %s\n", name->name);
 348         status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
 349         nfs_mark_for_revalidate(inode);
 350         nfs_mark_for_revalidate(dir);
 351         dprintk("NFS reply link: %d\n", status);
 352         return status;
 353 }
 354
 355 static int
 356 nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
 357                  unsigned int len, struct iattr *sattr)
 358 {
 359         struct nfs_fh fhandle;
 360         struct nfs_fattr fattr;
 361         struct nfs_symlinkargs  arg = {
 362                 .fromfh         = NFS_FH(dir),
 363                 .fromname       = dentry->d_name.name,
 364                 .fromlen        = dentry->d_name.len,
 365                 .pages          = &page,
 366                 .pathlen        = len,
 367                 .sattr          = sattr
 368         };
 369         struct rpc_message msg = {
 370                 .rpc_proc       = &nfs_procedures[NFSPROC_SYMLINK],
 371                 .rpc_argp       = &arg,
 372         };
 373         int                     status;
 374
 375         if (len > NFS2_MAXPATHLEN)
 376                 return -ENAMETOOLONG;
 377
 378         dprintk("NFS call  symlink %s\n", dentry->d_name.name);
 379
 380         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 381         nfs_mark_for_revalidate(dir);
 382
 383         /*
 384          * V2 SYMLINK requests don't return any attributes.  Setting the
 385          * filehandle size to zero indicates to nfs_instantiate that it
 386          * should fill in the data with a LOOKUP call on the wire.
 387          */
 388         if (status == 0) {
 389                 nfs_fattr_init(&fattr);
 390                 fhandle.size = 0;
 391                 status = nfs_instantiate(dentry, &fhandle, &fattr);
 392         }
 393
 394         dprintk("NFS reply symlink: %d\n", status);
 395         return status;
 396 }
 397
 398 static int
 399 nfs_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
 400 {
 401         struct nfs_fh fhandle;
 402         struct nfs_fattr fattr;
 403         struct nfs_createargs   arg = {
 404                 .fh             = NFS_FH(dir),
 405                 .name           = dentry->d_name.name,
 406                 .len            = dentry->d_name.len,
 407                 .sattr          = sattr
 408         };
 409         struct nfs_diropok      res = {
 410                 .fh             = &fhandle,
 411                 .fattr          = &fattr
 412         };
 413         struct rpc_message msg = {
 414                 .rpc_proc       = &nfs_procedures[NFSPROC_MKDIR],
 415                 .rpc_argp       = &arg,
 416                 .rpc_resp       = &res,
 417         };
 418         int                     status;
 419
 420         dprintk("NFS call  mkdir %s\n", dentry->d_name.name);
 421         nfs_fattr_init(&fattr);
 422         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 423         nfs_mark_for_revalidate(dir);
 424         if (status == 0)
 425                 status = nfs_instantiate(dentry, &fhandle, &fattr);
 426         dprintk("NFS reply mkdir: %d\n", status);
 427         return status;
 428 }
 429
 430 static int
 431 nfs_proc_rmdir(struct inode *dir, struct qstr *name)
 432 {
 433         struct nfs_diropargs    arg = {
 434                 .fh             = NFS_FH(dir),
 435                 .name           = name->name,
 436                 .len            = name->len
 437         };
 438         struct rpc_message msg = {
 439                 .rpc_proc       = &nfs_procedures[NFSPROC_RMDIR],
 440                 .rpc_argp       = &arg,
 441         };
 442         int                     status;
 443
 444         dprintk("NFS call  rmdir %s\n", name->name);
 445         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 446         nfs_mark_for_revalidate(dir);
 447         dprintk("NFS reply rmdir: %d\n", status);
 448         return status;
 449 }
 450
 451 /*
 452  * The READDIR implementation is somewhat hackish - we pass a temporary
 453  * buffer to the encode function, which installs it in the receive
 454  * the receive iovec. The decode function just parses the reply to make
 455  * sure it is syntactically correct; the entries itself are decoded
 456  * from nfs_readdir by calling the decode_entry function directly.
 457  */
 458 static int
 459 nfs_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
 460                  u64 cookie, struct page *page, unsigned int count, int plus)
 461 {
 462         struct inode            *dir = dentry->d_inode;
 463         struct nfs_readdirargs  arg = {
 464                 .fh             = NFS_FH(dir),
 465                 .cookie         = cookie,
 466                 .count          = count,
 467                 .pages          = &page,
 468         };
 469         struct rpc_message      msg = {
 470                 .rpc_proc       = &nfs_procedures[NFSPROC_READDIR],
 471                 .rpc_argp       = &arg,
 472                 .rpc_cred       = cred,
 473         };
 474         int                     status;
 475
 476         dprintk("NFS call  readdir %d\n", (unsigned int)cookie);
 477         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
 478
 479         dprintk("NFS reply readdir: %d\n", status);
 480         return status;
 481 }
 482
 483 static int
 484 nfs_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
 485                         struct nfs_fsstat *stat)
 486 {
 487         struct nfs2_fsstat fsinfo;
 488         struct rpc_message msg = {
 489                 .rpc_proc       = &nfs_procedures[NFSPROC_STATFS],
 490                 .rpc_argp       = fhandle,
 491                 .rpc_resp       = &fsinfo,
 492         };
 493         int     status;
 494
 495         dprintk("NFS call  statfs\n");
 496         nfs_fattr_init(stat->fattr);
 497         status = rpc_call_sync(server->client, &msg, 0);
 498         dprintk("NFS reply statfs: %d\n", status);
 499         if (status)
 500                 goto out;
 501         stat->tbytes = (u64)fsinfo.blocks * fsinfo.bsize;
 502         stat->fbytes = (u64)fsinfo.bfree  * fsinfo.bsize;
 503         stat->abytes = (u64)fsinfo.bavail * fsinfo.bsize;
 504         stat->tfiles = 0;
 505         stat->ffiles = 0;
 506         stat->afiles = 0;
 507 out:
 508         return status;
 509 }
 510
 511 static int
 512 nfs_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
 513                         struct nfs_fsinfo *info)
 514 {
 515         struct nfs2_fsstat fsinfo;
 516         struct rpc_message msg = {
 517                 .rpc_proc       = &nfs_procedures[NFSPROC_STATFS],
 518                 .rpc_argp       = fhandle,
 519                 .rpc_resp       = &fsinfo,
 520         };
 521         int     status;
 522
 523         dprintk("NFS call  fsinfo\n");
 524         nfs_fattr_init(info->fattr);
 525         status = rpc_call_sync(server->client, &msg, 0);
 526         dprintk("NFS reply fsinfo: %d\n", status);
 527         if (status)
 528                 goto out;
 529         info->rtmax  = NFS_MAXDATA;
 530         info->rtpref = fsinfo.tsize;
 531         info->rtmult = fsinfo.bsize;
 532         info->wtmax  = NFS_MAXDATA;
 533         info->wtpref = fsinfo.tsize;
 534         info->wtmult = fsinfo.bsize;
 535         info->dtpref = fsinfo.tsize;
 536         info->maxfilesize = 0x7FFFFFFF;
 537         info->lease_time = 0;
 538 out:
 539         return status;
 540 }
 541
 542 static int
 543 nfs_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
 544                   struct nfs_pathconf *info)
 545 {
 546         info->max_link = 0;
 547         info->max_namelen = NFS2_MAXNAMLEN;
 548         return 0;
 549 }
 550
 551 static int nfs_read_done(struct rpc_task *task, struct nfs_read_data *data)
 552 {
 553         if (task->tk_status >= 0) {
 554                 nfs_refresh_inode(data->inode, data->res.fattr);
 555                 /* Emulate the eof flag, which isn't normally needed in NFSv2
 556                  * as it is guaranteed to always return the file attributes
 557                  */
 558                 if (data->args.offset + data->args.count >= data->res.fattr->size)
 559                         data->res.eof = 1;
 560         }
 561         return 0;
 562 }
 563
 564 static void nfs_proc_read_setup(struct nfs_read_data *data)
 565 {
 566         struct rpc_message      msg = {
 567                 .rpc_proc       = &nfs_procedures[NFSPROC_READ],
 568                 .rpc_argp       = &data->args,
 569                 .rpc_resp       = &data->res,
 570                 .rpc_cred       = data->cred,
 571         };
 572
 573         rpc_call_setup(&data->task, &msg, 0);
 574 }
 575
 576 static int nfs_write_done(struct rpc_task *task, struct nfs_write_data *data)
 577 {
 578         if (task->tk_status >= 0)
 579                 nfs_post_op_update_inode(data->inode, data->res.fattr);
 580         return 0;
 581 }
 582
 583 static void nfs_proc_write_setup(struct nfs_write_data *data, int how)
 584 {
 585         struct rpc_message      msg = {
 586                 .rpc_proc       = &nfs_procedures[NFSPROC_WRITE],
 587                 .rpc_argp       = &data->args,
 588                 .rpc_resp       = &data->res,
 589                 .rpc_cred       = data->cred,
 590         };
 591
 592         /* Note: NFSv2 ignores @stable and always uses NFS_FILE_SYNC */
 593         data->args.stable = NFS_FILE_SYNC;
 594
 595         /* Finalize the task. */
 596         rpc_call_setup(&data->task, &msg, 0);
 597 }
 598
 599 static void
 600 nfs_proc_commit_setup(struct nfs_write_data *data, int how)
 601 {
 602         BUG();
 603 }
 604
 605 static int
 606 nfs_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
 607 {
 608         return nlmclnt_proc(filp->f_path.dentry->d_inode, cmd, fl);
 609 }
 610
 611
 612 const struct nfs_rpc_ops nfs_v2_clientops = {
 613         .version        = 2,                   /* protocol version */
 614         .dentry_ops     = &nfs_dentry_operations,
 615         .dir_inode_ops  = &nfs_dir_inode_operations,
 616         .file_inode_ops = &nfs_file_inode_operations,
 617         .getroot        = nfs_proc_get_root,
 618         .getattr        = nfs_proc_getattr,
 619         .setattr        = nfs_proc_setattr,
 620         .lookup         = nfs_proc_lookup,
 621         .access         = NULL,                /* access */
 622         .readlink       = nfs_proc_readlink,
 623         .create         = nfs_proc_create,
 624         .remove         = nfs_proc_remove,
 625         .unlink_setup   = nfs_proc_unlink_setup,
 626         .unlink_done    = nfs_proc_unlink_done,
 627         .rename         = nfs_proc_rename,
 628         .link           = nfs_proc_link,
 629         .symlink        = nfs_proc_symlink,
 630         .mkdir          = nfs_proc_mkdir,
 631         .rmdir          = nfs_proc_rmdir,
 632         .readdir        = nfs_proc_readdir,
 633         .mknod          = nfs_proc_mknod,
 634         .statfs         = nfs_proc_statfs,
 635         .fsinfo         = nfs_proc_fsinfo,
 636         .pathconf       = nfs_proc_pathconf,
 637         .decode_dirent  = nfs_decode_dirent,
 638         .read_setup     = nfs_proc_read_setup,
 639         .read_done      = nfs_read_done,
 640         .write_setup    = nfs_proc_write_setup,
 641         .write_done     = nfs_write_done,
 642         .commit_setup   = nfs_proc_commit_setup,
 643         .file_open      = nfs_open,
 644         .file_release   = nfs_release,
 645         .lock           = nfs_proc_lock,
 646 };