include/linux/nfs_xdr.h

   1 #ifndef _LINUX_NFS_XDR_H
   2 #define _LINUX_NFS_XDR_H
   3
   4 #include <linux/sunrpc/xprt.h>
   5 #include <linux/nfsacl.h>
   6
   7 struct nfs4_fsid {
   8         __u64 major;
   9         __u64 minor;
  10 };
  11
  12 struct nfs_fattr {
  13         unsigned short          valid;          /* which fields are valid */
  14         __u64                   pre_size;       /* pre_op_attr.size       */
  15         struct timespec         pre_mtime;      /* pre_op_attr.mtime      */
  16         struct timespec         pre_ctime;      /* pre_op_attr.ctime      */
  17         enum nfs_ftype          type;           /* always use NFSv2 types */
  18         __u32                   mode;
  19         __u32                   nlink;
  20         __u32                   uid;
  21         __u32                   gid;
  22         __u64                   size;
  23         union {
  24                 struct {
  25                         __u32   blocksize;
  26                         __u32   blocks;
  27                 } nfs2;
  28                 struct {
  29                         __u64   used;
  30                 } nfs3;
  31         } du;
  32         dev_t                   rdev;
  33         union {
  34                 __u64           nfs3;           /* also nfs2 */
  35                 struct nfs4_fsid nfs4;
  36         } fsid_u;
  37         __u64                   fileid;
  38         struct timespec         atime;
  39         struct timespec         mtime;
  40         struct timespec         ctime;
  41         __u32                   bitmap[2];      /* NFSv4 returned attribute bitmap */
  42         __u64                   change_attr;    /* NFSv4 change attribute */
  43         __u64                   pre_change_attr;/* pre-op NFSv4 change attribute */
  44         unsigned long           timestamp;
  45 };
  46
  47 #define NFS_ATTR_WCC            0x0001          /* pre-op WCC data    */
  48 #define NFS_ATTR_FATTR          0x0002          /* post-op attributes */
  49 #define NFS_ATTR_FATTR_V3       0x0004          /* NFSv3 attributes */
  50 #define NFS_ATTR_FATTR_V4       0x0008
  51 #define NFS_ATTR_PRE_CHANGE     0x0010
  52
  53 /*
  54  * Info on the file system
  55  */
  56 struct nfs_fsinfo {
  57         struct nfs_fattr        *fattr; /* Post-op attributes */
  58         __u32                   rtmax;  /* max.  read transfer size */
  59         __u32                   rtpref; /* pref. read transfer size */
  60         __u32                   rtmult; /* reads should be multiple of this */
  61         __u32                   wtmax;  /* max.  write transfer size */
  62         __u32                   wtpref; /* pref. write transfer size */
  63         __u32                   wtmult; /* writes should be multiple of this */
  64         __u32                   dtpref; /* pref. readdir transfer size */
  65         __u64                   maxfilesize;
  66         __u32                   lease_time; /* in seconds */
  67 };
  68
  69 struct nfs_fsstat {
  70         struct nfs_fattr        *fattr; /* Post-op attributes */
  71         __u64                   tbytes; /* total size in bytes */
  72         __u64                   fbytes; /* # of free bytes */
  73         __u64                   abytes; /* # of bytes available to user */
  74         __u64                   tfiles; /* # of files */
  75         __u64                   ffiles; /* # of free files */
  76         __u64                   afiles; /* # of files available to user */
  77 };
  78
  79 struct nfs2_fsstat {
  80         __u32                   tsize;  /* Server transfer size */
  81         __u32                   bsize;  /* Filesystem block size */
  82         __u32                   blocks; /* No. of "bsize" blocks on filesystem */
  83         __u32                   bfree;  /* No. of free "bsize" blocks */
  84         __u32                   bavail; /* No. of available "bsize" blocks */
  85 };
  86
  87 struct nfs_pathconf {
  88         struct nfs_fattr        *fattr; /* Post-op attributes */
  89         __u32                   max_link; /* max # of hard links */
  90         __u32                   max_namelen; /* max name length */
  91 };
  92
  93 struct nfs4_change_info {
  94         u32                     atomic;
  95         u64                     before;
  96         u64                     after;
  97 };
  98
  99 struct nfs_seqid;
 100 /*
 101  * Arguments to the open call.
 102  */
 103 struct nfs_openargs {
 104         const struct nfs_fh *   fh;
 105         struct nfs_seqid *      seqid;
 106         int                     open_flags;
 107         __u64                   clientid;
 108         __u32                   id;
 109         union {
 110                 struct iattr *  attrs;    /* UNCHECKED, GUARDED */
 111                 nfs4_verifier   verifier; /* EXCLUSIVE */
 112                 nfs4_stateid    delegation;             /* CLAIM_DELEGATE_CUR */
 113                 int             delegation_type;        /* CLAIM_PREVIOUS */
 114         } u;
 115         const struct qstr *     name;
 116         const struct nfs_server *server;         /* Needed for ID mapping */
 117         const u32 *             bitmask;
 118         __u32                   claim;
 119 };
 120
 121 struct nfs_openres {
 122         nfs4_stateid            stateid;
 123         struct nfs_fh           fh;
 124         struct nfs4_change_info cinfo;
 125         __u32                   rflags;
 126         struct nfs_fattr *      f_attr;
 127         const struct nfs_server *server;
 128         int                     delegation_type;
 129         nfs4_stateid            delegation;
 130         __u32                   do_recall;
 131         __u64                   maxsize;
 132 };
 133
 134 /*
 135  * Arguments to the open_confirm call.
 136  */
 137 struct nfs_open_confirmargs {
 138         const struct nfs_fh *   fh;
 139         nfs4_stateid            stateid;
 140         struct nfs_seqid *      seqid;
 141 };
 142
 143 struct nfs_open_confirmres {
 144         nfs4_stateid            stateid;
 145 };
 146
 147 /*
 148  * Arguments to the close call.
 149  */
 150 struct nfs_closeargs {
 151         struct nfs_fh *         fh;
 152         nfs4_stateid *          stateid;
 153         struct nfs_seqid *      seqid;
 154         int                     open_flags;
 155 };
 156
 157 struct nfs_closeres {
 158         nfs4_stateid            stateid;
 159 };
 160 /*
 161  *  * Arguments to the lock,lockt, and locku call.
 162  *   */
 163 struct nfs_lowner {
 164         __u64           clientid;
 165         u32                     id;
 166 };
 167
 168 struct nfs_open_to_lock {
 169         struct nfs_seqid *      open_seqid;
 170         nfs4_stateid            open_stateid;
 171         struct nfs_seqid *      lock_seqid;
 172         struct nfs_lowner       lock_owner;
 173 };
 174
 175 struct nfs_exist_lock {
 176         nfs4_stateid            stateid;
 177         struct nfs_seqid *      seqid;
 178 };
 179
 180 struct nfs_lock_opargs {
 181         __u32                   reclaim;
 182         __u32                   new_lock_owner;
 183         union {
 184                 struct nfs_open_to_lock *open_lock;
 185                 struct nfs_exist_lock   *exist_lock;
 186         } u;
 187 };
 188
 189 struct nfs_locku_opargs {
 190         struct nfs_seqid *      seqid;
 191         nfs4_stateid            stateid;
 192 };
 193
 194 struct nfs_lockargs {
 195         struct nfs_fh *         fh;
 196         __u32                   type;
 197         __u64                   offset;
 198         __u64                   length;
 199         union {
 200                 struct nfs_lock_opargs  *lock;    /* LOCK  */
 201                 struct nfs_lowner       *lockt;  /* LOCKT */
 202                 struct nfs_locku_opargs *locku;  /* LOCKU */
 203         } u;
 204 };
 205
 206 struct nfs_lock_denied {
 207         __u64                   offset;
 208         __u64                   length;
 209         __u32                   type;
 210         struct nfs_lowner       owner;
 211 };
 212
 213 struct nfs_lockres {
 214         union {
 215                 nfs4_stateid            stateid;/* LOCK success, LOCKU */
 216                 struct nfs_lock_denied  denied; /* LOCK failed, LOCKT success */
 217         } u;
 218         const struct nfs_server *       server;
 219 };
 220
 221 struct nfs4_delegreturnargs {
 222         const struct nfs_fh *fhandle;
 223         const nfs4_stateid *stateid;
 224 };
 225
 226 /*
 227  * Arguments to the read call.
 228  */
 229
 230 #define NFS_READ_MAXIOV         (9U)
 231 #if (NFS_READ_MAXIOV > (MAX_IOVEC -2))
 232 #error "NFS_READ_MAXIOV is too large"
 233 #endif
 234
 235 struct nfs_readargs {
 236         struct nfs_fh *         fh;
 237         struct nfs_open_context *context;
 238         __u64                   offset;
 239         __u32                   count;
 240         unsigned int            pgbase;
 241         struct page **          pages;
 242 };
 243
 244 struct nfs_readres {
 245         struct nfs_fattr *      fattr;
 246         __u32                   count;
 247         int                     eof;
 248 };
 249
 250 /*
 251  * Arguments to the write call.
 252  */
 253 #define NFS_WRITE_MAXIOV        (9U)
 254 #if (NFS_WRITE_MAXIOV > (MAX_IOVEC -2))
 255 #error "NFS_WRITE_MAXIOV is too large"
 256 #endif
 257
 258 struct nfs_writeargs {
 259         struct nfs_fh *         fh;
 260         struct nfs_open_context *context;
 261         __u64                   offset;
 262         __u32                   count;
 263         enum nfs3_stable_how    stable;
 264         unsigned int            pgbase;
 265         struct page **          pages;
 266 };
 267
 268 struct nfs_writeverf {
 269         enum nfs3_stable_how    committed;
 270         __u32                   verifier[2];
 271 };
 272
 273 struct nfs_writeres {
 274         struct nfs_fattr *      fattr;
 275         struct nfs_writeverf *  verf;
 276         __u32                   count;
 277 };
 278
 279 /*
 280  * Argument struct for decode_entry function
 281  */
 282 struct nfs_entry {
 283         __u64                   ino;
 284         __u64                   cookie,
 285                                 prev_cookie;
 286         const char *            name;
 287         unsigned int            len;
 288         int                     eof;
 289         struct nfs_fh *         fh;
 290         struct nfs_fattr *      fattr;
 291 };
 292
 293 /*
 294  * The following types are for NFSv2 only.
 295  */
 296 struct nfs_sattrargs {
 297         struct nfs_fh *         fh;
 298         struct iattr *          sattr;
 299 };
 300
 301 struct nfs_diropargs {
 302         struct nfs_fh *         fh;
 303         const char *            name;
 304         unsigned int            len;
 305 };
 306
 307 struct nfs_createargs {
 308         struct nfs_fh *         fh;
 309         const char *            name;
 310         unsigned int            len;
 311         struct iattr *          sattr;
 312 };
 313
 314 struct nfs_renameargs {
 315         struct nfs_fh *         fromfh;
 316         const char *            fromname;
 317         unsigned int            fromlen;
 318         struct nfs_fh *         tofh;
 319         const char *            toname;
 320         unsigned int            tolen;
 321 };
 322
 323 struct nfs_setattrargs {
 324         struct nfs_fh *                 fh;
 325         nfs4_stateid                    stateid;
 326         struct iattr *                  iap;
 327         const struct nfs_server *       server; /* Needed for name mapping */
 328         const u32 *                     bitmask;
 329 };
 330
 331 struct nfs_setaclargs {
 332         struct nfs_fh *                 fh;
 333         size_t                          acl_len;
 334         unsigned int                    acl_pgbase;
 335         struct page **                  acl_pages;
 336 };
 337
 338 struct nfs_getaclargs {
 339         struct nfs_fh *                 fh;
 340         size_t                          acl_len;
 341         unsigned int                    acl_pgbase;
 342         struct page **                  acl_pages;
 343 };
 344
 345 struct nfs_setattrres {
 346         struct nfs_fattr *              fattr;
 347         const struct nfs_server *       server;
 348 };
 349
 350 struct nfs_linkargs {
 351         struct nfs_fh *         fromfh;
 352         struct nfs_fh *         tofh;
 353         const char *            toname;
 354         unsigned int            tolen;
 355 };
 356
 357 struct nfs_symlinkargs {
 358         struct nfs_fh *         fromfh;
 359         const char *            fromname;
 360         unsigned int            fromlen;
 361         const char *            topath;
 362         unsigned int            tolen;
 363         struct iattr *          sattr;
 364 };
 365
 366 struct nfs_readdirargs {
 367         struct nfs_fh *         fh;
 368         __u32                   cookie;
 369         unsigned int            count;
 370         struct page **          pages;
 371 };
 372
 373 struct nfs3_getaclargs {
 374         struct nfs_fh *         fh;
 375         int                     mask;
 376         struct page **          pages;
 377 };
 378
 379 struct nfs3_setaclargs {
 380         struct inode *          inode;
 381         int                     mask;
 382         struct posix_acl *      acl_access;
 383         struct posix_acl *      acl_default;
 384         struct page **          pages;
 385 };
 386
 387 struct nfs_diropok {
 388         struct nfs_fh *         fh;
 389         struct nfs_fattr *      fattr;
 390 };
 391
 392 struct nfs_readlinkargs {
 393         struct nfs_fh *         fh;
 394         unsigned int            pgbase;
 395         unsigned int            pglen;
 396         struct page **          pages;
 397 };
 398
 399 struct nfs3_sattrargs {
 400         struct nfs_fh *         fh;
 401         struct iattr *          sattr;
 402         unsigned int            guard;
 403         struct timespec         guardtime;
 404 };
 405
 406 struct nfs3_diropargs {
 407         struct nfs_fh *         fh;
 408         const char *            name;
 409         unsigned int            len;
 410 };
 411
 412 struct nfs3_accessargs {
 413         struct nfs_fh *         fh;
 414         __u32                   access;
 415 };
 416
 417 struct nfs3_createargs {
 418         struct nfs_fh *         fh;
 419         const char *            name;
 420         unsigned int            len;
 421         struct iattr *          sattr;
 422         enum nfs3_createmode    createmode;
 423         __u32                   verifier[2];
 424 };
 425
 426 struct nfs3_mkdirargs {
 427         struct nfs_fh *         fh;
 428         const char *            name;
 429         unsigned int            len;
 430         struct iattr *          sattr;
 431 };
 432
 433 struct nfs3_symlinkargs {
 434         struct nfs_fh *         fromfh;
 435         const char *            fromname;
 436         unsigned int            fromlen;
 437         const char *            topath;
 438         unsigned int            tolen;
 439         struct iattr *          sattr;
 440 };
 441
 442 struct nfs3_mknodargs {
 443         struct nfs_fh *         fh;
 444         const char *            name;
 445         unsigned int            len;
 446         enum nfs3_ftype         type;
 447         struct iattr *          sattr;
 448         dev_t                   rdev;
 449 };
 450
 451 struct nfs3_renameargs {
 452         struct nfs_fh *         fromfh;
 453         const char *            fromname;
 454         unsigned int            fromlen;
 455         struct nfs_fh *         tofh;
 456         const char *            toname;
 457         unsigned int            tolen;
 458 };
 459
 460 struct nfs3_linkargs {
 461         struct nfs_fh *         fromfh;
 462         struct nfs_fh *         tofh;
 463         const char *            toname;
 464         unsigned int            tolen;
 465 };
 466
 467 struct nfs3_readdirargs {
 468         struct nfs_fh *         fh;
 469         __u64                   cookie;
 470         __u32                   verf[2];
 471         int                     plus;
 472         unsigned int            count;
 473         struct page **          pages;
 474 };
 475
 476 struct nfs3_diropres {
 477         struct nfs_fattr *      dir_attr;
 478         struct nfs_fh *         fh;
 479         struct nfs_fattr *      fattr;
 480 };
 481
 482 struct nfs3_accessres {
 483         struct nfs_fattr *      fattr;
 484         __u32                   access;
 485 };
 486
 487 struct nfs3_readlinkargs {
 488         struct nfs_fh *         fh;
 489         unsigned int            pgbase;
 490         unsigned int            pglen;
 491         struct page **          pages;
 492 };
 493
 494 struct nfs3_renameres {
 495         struct nfs_fattr *      fromattr;
 496         struct nfs_fattr *      toattr;
 497 };
 498
 499 struct nfs3_linkres {
 500         struct nfs_fattr *      dir_attr;
 501         struct nfs_fattr *      fattr;
 502 };
 503
 504 struct nfs3_readdirres {
 505         struct nfs_fattr *      dir_attr;
 506         __u32 *                 verf;
 507         int                     plus;
 508 };
 509
 510 struct nfs3_getaclres {
 511         struct nfs_fattr *      fattr;
 512         int                     mask;
 513         unsigned int            acl_access_count;
 514         unsigned int            acl_default_count;
 515         struct posix_acl *      acl_access;
 516         struct posix_acl *      acl_default;
 517 };
 518
 519 #ifdef CONFIG_NFS_V4
 520
 521 typedef u64 clientid4;
 522
 523 struct nfs4_accessargs {
 524         const struct nfs_fh *           fh;
 525         u32                             access;
 526 };
 527
 528 struct nfs4_accessres {
 529         u32                             supported;
 530         u32                             access;
 531 };
 532
 533 struct nfs4_create_arg {
 534         u32                             ftype;
 535         union {
 536                 struct qstr *           symlink;    /* NF4LNK */
 537                 struct {
 538                         u32             specdata1;
 539                         u32             specdata2;
 540                 } device;    /* NF4BLK, NF4CHR */
 541         } u;
 542         const struct qstr *             name;
 543         const struct nfs_server *       server;
 544         const struct iattr *            attrs;
 545         const struct nfs_fh *           dir_fh;
 546         const u32 *                     bitmask;
 547 };
 548
 549 struct nfs4_create_res {
 550         const struct nfs_server *       server;
 551         struct nfs_fh *                 fh;
 552         struct nfs_fattr *              fattr;
 553         struct nfs4_change_info         dir_cinfo;
 554 };
 555
 556 struct nfs4_fsinfo_arg {
 557         const struct nfs_fh *           fh;
 558         const u32 *                     bitmask;
 559 };
 560
 561 struct nfs4_getattr_arg {
 562         const struct nfs_fh *           fh;
 563         const u32 *                     bitmask;
 564 };
 565
 566 struct nfs4_getattr_res {
 567         const struct nfs_server *       server;
 568         struct nfs_fattr *              fattr;
 569 };
 570
 571 struct nfs4_link_arg {
 572         const struct nfs_fh *           fh;
 573         const struct nfs_fh *           dir_fh;
 574         const struct qstr *             name;
 575 };
 576
 577 struct nfs4_lookup_arg {
 578         const struct nfs_fh *           dir_fh;
 579         const struct qstr *             name;
 580         const u32 *                     bitmask;
 581 };
 582
 583 struct nfs4_lookup_res {
 584         const struct nfs_server *       server;
 585         struct nfs_fattr *              fattr;
 586         struct nfs_fh *                 fh;
 587 };
 588
 589 struct nfs4_lookup_root_arg {
 590         const u32 *                     bitmask;
 591 };
 592
 593 struct nfs4_pathconf_arg {
 594         const struct nfs_fh *           fh;
 595         const u32 *                     bitmask;
 596 };
 597
 598 struct nfs4_readdir_arg {
 599         const struct nfs_fh *           fh;
 600         u64                             cookie;
 601         nfs4_verifier                   verifier;
 602         u32                             count;
 603         struct page **                  pages;  /* zero-copy data */
 604         unsigned int                    pgbase; /* zero-copy data */
 605         const u32 *                     bitmask;
 606 };
 607
 608 struct nfs4_readdir_res {
 609         nfs4_verifier                   verifier;
 610         unsigned int                    pgbase;
 611 };
 612
 613 struct nfs4_readlink {
 614         const struct nfs_fh *           fh;
 615         unsigned int                    pgbase;
 616         unsigned int                    pglen;   /* zero-copy data */
 617         struct page **                  pages;   /* zero-copy data */
 618 };
 619
 620 struct nfs4_remove_arg {
 621         const struct nfs_fh *           fh;
 622         const struct qstr *             name;
 623 };
 624
 625 struct nfs4_rename_arg {
 626         const struct nfs_fh *           old_dir;
 627         const struct nfs_fh *           new_dir;
 628         const struct qstr *             old_name;
 629         const struct qstr *             new_name;
 630 };
 631
 632 struct nfs4_rename_res {
 633         struct nfs4_change_info         old_cinfo;
 634         struct nfs4_change_info         new_cinfo;
 635 };
 636
 637 struct nfs4_setclientid {
 638         const nfs4_verifier *           sc_verifier;      /* request */
 639         unsigned int                    sc_name_len;
 640         char                            sc_name[32];      /* request */
 641         u32                             sc_prog;          /* request */
 642         unsigned int                    sc_netid_len;
 643         char                            sc_netid[4];      /* request */
 644         unsigned int                    sc_uaddr_len;
 645         char                            sc_uaddr[24];     /* request */
 646         u32                             sc_cb_ident;      /* request */
 647 };
 648
 649 struct nfs4_statfs_arg {
 650         const struct nfs_fh *           fh;
 651         const u32 *                     bitmask;
 652 };
 653
 654 struct nfs4_server_caps_res {
 655         u32                             attr_bitmask[2];
 656         u32                             acl_bitmask;
 657         u32                             has_links;
 658         u32                             has_symlinks;
 659 };
 660
 661 #endif /* CONFIG_NFS_V4 */
 662
 663 struct nfs_page;
 664
 665 struct nfs_read_data {
 666         int                     flags;
 667         struct rpc_task         task;
 668         struct inode            *inode;
 669         struct rpc_cred         *cred;
 670         struct nfs_fattr        fattr;  /* fattr storage */
 671         struct list_head        pages;  /* Coalesced read requests */
 672         struct nfs_page         *req;   /* multi ops per nfs_page */
 673         struct page             *pagevec[NFS_READ_MAXIOV];
 674         struct nfs_readargs args;
 675         struct nfs_readres  res;
 676 #ifdef CONFIG_NFS_V4
 677         unsigned long           timestamp;      /* For lease renewal */
 678 #endif
 679         void (*complete) (struct nfs_read_data *, int);
 680 };
 681
 682 struct nfs_write_data {
 683         int                     flags;
 684         struct rpc_task         task;
 685         struct inode            *inode;
 686         struct rpc_cred         *cred;
 687         struct nfs_fattr        fattr;
 688         struct nfs_writeverf    verf;
 689         struct list_head        pages;          /* Coalesced requests we wish to flush */
 690         struct nfs_page         *req;           /* multi ops per nfs_page */
 691         struct page             *pagevec[NFS_WRITE_MAXIOV];
 692         struct nfs_writeargs    args;           /* argument struct */
 693         struct nfs_writeres     res;            /* result struct */
 694 #ifdef CONFIG_NFS_V4
 695         unsigned long           timestamp;      /* For lease renewal */
 696 #endif
 697         void (*complete) (struct nfs_write_data *, int);
 698 };
 699
 700 struct nfs_access_entry;
 701
 702 /*
 703  * RPC procedure vector for NFSv2/NFSv3 demuxing
 704  */
 705 struct nfs_rpc_ops {
 706         int     version;                /* Protocol version */
 707         struct dentry_operations *dentry_ops;
 708         struct inode_operations *dir_inode_ops;
 709         struct inode_operations *file_inode_ops;
 710
 711         int     (*getroot) (struct nfs_server *, struct nfs_fh *,
 712                             struct nfs_fsinfo *);
 713         int     (*getattr) (struct nfs_server *, struct nfs_fh *,
 714                             struct nfs_fattr *);
 715         int     (*setattr) (struct dentry *, struct nfs_fattr *,
 716                             struct iattr *);
 717         int     (*lookup)  (struct inode *, struct qstr *,
 718                             struct nfs_fh *, struct nfs_fattr *);
 719         int     (*access)  (struct inode *, struct nfs_access_entry *);
 720         int     (*readlink)(struct inode *, struct page *, unsigned int,
 721                             unsigned int);
 722         int     (*read)    (struct nfs_read_data *);
 723         int     (*write)   (struct nfs_write_data *);
 724         int     (*commit)  (struct nfs_write_data *);
 725         int     (*create)  (struct inode *, struct dentry *,
 726                             struct iattr *, int);
 727         int     (*remove)  (struct inode *, struct qstr *);
 728         int     (*unlink_setup)  (struct rpc_message *,
 729                             struct dentry *, struct qstr *);
 730         int     (*unlink_done) (struct dentry *, struct rpc_task *);
 731         int     (*rename)  (struct inode *, struct qstr *,
 732                             struct inode *, struct qstr *);
 733         int     (*link)    (struct inode *, struct inode *, struct qstr *);
 734         int     (*symlink) (struct inode *, struct qstr *, struct qstr *,
 735                             struct iattr *, struct nfs_fh *,
 736                             struct nfs_fattr *);
 737         int     (*mkdir)   (struct inode *, struct dentry *, struct iattr *);
 738         int     (*rmdir)   (struct inode *, struct qstr *);
 739         int     (*readdir) (struct dentry *, struct rpc_cred *,
 740                             u64, struct page *, unsigned int, int);
 741         int     (*mknod)   (struct inode *, struct dentry *, struct iattr *,
 742                             dev_t);
 743         int     (*statfs)  (struct nfs_server *, struct nfs_fh *,
 744                             struct nfs_fsstat *);
 745         int     (*fsinfo)  (struct nfs_server *, struct nfs_fh *,
 746                             struct nfs_fsinfo *);
 747         int     (*pathconf) (struct nfs_server *, struct nfs_fh *,
 748                              struct nfs_pathconf *);
 749         u32 *   (*decode_dirent)(u32 *, struct nfs_entry *, int plus);
 750         void    (*read_setup)   (struct nfs_read_data *);
 751         void    (*write_setup)  (struct nfs_write_data *, int how);
 752         void    (*commit_setup) (struct nfs_write_data *, int how);
 753         int     (*file_open)   (struct inode *, struct file *);
 754         int     (*file_release) (struct inode *, struct file *);
 755         int     (*lock)(struct file *, int, struct file_lock *);
 756         void    (*clear_acl_cache)(struct inode *);
 757 };
 758
 759 /*
 760  *      NFS_CALL(getattr, inode, (fattr));
 761  * into
 762  *      NFS_PROTO(inode)->getattr(fattr);
 763  */
 764 #define NFS_CALL(op, inode, args)       NFS_PROTO(inode)->op args
 765
 766 /*
 767  * Function vectors etc. for the NFS client
 768  */
 769 extern struct nfs_rpc_ops       nfs_v2_clientops;
 770 extern struct nfs_rpc_ops       nfs_v3_clientops;
 771 extern struct nfs_rpc_ops       nfs_v4_clientops;
 772 extern struct rpc_version       nfs_version2;
 773 extern struct rpc_version       nfs_version3;
 774 extern struct rpc_version       nfs_version4;
 775
 776 extern struct rpc_version       nfsacl_version3;
 777 extern struct rpc_program       nfsacl_program;
 778
 779 #endif