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 /*
   8  * To change the maximum rsize and wsize supported by the NFS client, adjust
   9  * NFS_MAX_FILE_IO_SIZE.  64KB is a typical maximum, but some servers can
  10  * support a megabyte or more.  The default is left at 4096 bytes, which is
  11  * reasonable for NFS over UDP.
  12  */
  13 #define NFS_MAX_FILE_IO_SIZE    (1048576U)
  14 #define NFS_DEF_FILE_IO_SIZE    (4096U)
  15 #define NFS_MIN_FILE_IO_SIZE    (1024U)
  16
  17 struct nfs4_fsid {
  18         __u64 major;
  19         __u64 minor;
  20 };
  21
  22 struct nfs_fattr {
  23         unsigned short          valid;          /* which fields are valid */
  24         __u64                   pre_size;       /* pre_op_attr.size       */
  25         struct timespec         pre_mtime;      /* pre_op_attr.mtime      */
  26         struct timespec         pre_ctime;      /* pre_op_attr.ctime      */
  27         enum nfs_ftype          type;           /* always use NFSv2 types */
  28         __u32                   mode;
  29         __u32                   nlink;
  30         __u32                   uid;
  31         __u32                   gid;
  32         __u64                   size;
  33         union {
  34                 struct {
  35                         __u32   blocksize;
  36                         __u32   blocks;
  37                 } nfs2;
  38                 struct {
  39                         __u64   used;
  40                 } nfs3;
  41         } du;
  42         dev_t                   rdev;
  43         union {
  44                 __u64           nfs3;           /* also nfs2 */
  45                 struct nfs4_fsid nfs4;
  46         } fsid_u;
  47         __u64                   fileid;
  48         struct timespec         atime;
  49         struct timespec         mtime;
  50         struct timespec         ctime;
  51         __u32                   bitmap[2];      /* NFSv4 returned attribute bitmap */
  52         __u64                   change_attr;    /* NFSv4 change attribute */
  53         __u64                   pre_change_attr;/* pre-op NFSv4 change attribute */
  54         unsigned long           time_start;
  55 };
  56
  57 #define NFS_ATTR_WCC            0x0001          /* pre-op WCC data    */
  58 #define NFS_ATTR_FATTR          0x0002          /* post-op attributes */
  59 #define NFS_ATTR_FATTR_V3       0x0004          /* NFSv3 attributes */
  60 #define NFS_ATTR_FATTR_V4       0x0008
  61 #define NFS_ATTR_PRE_CHANGE     0x0010
  62
  63 /*
  64  * Info on the file system
  65  */
  66 struct nfs_fsinfo {
  67         struct nfs_fattr        *fattr; /* Post-op attributes */
  68         __u32                   rtmax;  /* max.  read transfer size */
  69         __u32                   rtpref; /* pref. read transfer size */
  70         __u32                   rtmult; /* reads should be multiple of this */
  71         __u32                   wtmax;  /* max.  write transfer size */
  72         __u32                   wtpref; /* pref. write transfer size */
  73         __u32                   wtmult; /* writes should be multiple of this */
  74         __u32                   dtpref; /* pref. readdir transfer size */
  75         __u64                   maxfilesize;
  76         __u32                   lease_time; /* in seconds */
  77 };
  78
  79 struct nfs_fsstat {
  80         struct nfs_fattr        *fattr; /* Post-op attributes */
  81         __u64                   tbytes; /* total size in bytes */
  82         __u64                   fbytes; /* # of free bytes */
  83         __u64                   abytes; /* # of bytes available to user */
  84         __u64                   tfiles; /* # of files */
  85         __u64                   ffiles; /* # of free files */
  86         __u64                   afiles; /* # of files available to user */
  87 };
  88
  89 struct nfs2_fsstat {
  90         __u32                   tsize;  /* Server transfer size */
  91         __u32                   bsize;  /* Filesystem block size */
  92         __u32                   blocks; /* No. of "bsize" blocks on filesystem */
  93         __u32                   bfree;  /* No. of free "bsize" blocks */
  94         __u32                   bavail; /* No. of available "bsize" blocks */
  95 };
  96
  97 struct nfs_pathconf {
  98         struct nfs_fattr        *fattr; /* Post-op attributes */
  99         __u32                   max_link; /* max # of hard links */
 100         __u32                   max_namelen; /* max name length */
 101 };
 102
 103 struct nfs4_change_info {
 104         u32                     atomic;
 105         u64                     before;
 106         u64                     after;
 107 };
 108
 109 struct nfs_seqid;
 110 /*
 111  * Arguments to the open call.
 112  */
 113 struct nfs_openargs {
 114         const struct nfs_fh *   fh;
 115         struct nfs_seqid *      seqid;
 116         int                     open_flags;
 117         __u64                   clientid;
 118         __u32                   id;
 119         union {
 120                 struct iattr *  attrs;    /* UNCHECKED, GUARDED */
 121                 nfs4_verifier   verifier; /* EXCLUSIVE */
 122                 nfs4_stateid    delegation;             /* CLAIM_DELEGATE_CUR */
 123                 int             delegation_type;        /* CLAIM_PREVIOUS */
 124         } u;
 125         const struct qstr *     name;
 126         const struct nfs_server *server;         /* Needed for ID mapping */
 127         const u32 *             bitmask;
 128         __u32                   claim;
 129 };
 130
 131 struct nfs_openres {
 132         nfs4_stateid            stateid;
 133         struct nfs_fh           fh;
 134         struct nfs4_change_info cinfo;
 135         __u32                   rflags;
 136         struct nfs_fattr *      f_attr;
 137         struct nfs_fattr *      dir_attr;
 138         const struct nfs_server *server;
 139         int                     delegation_type;
 140         nfs4_stateid            delegation;
 141         __u32                   do_recall;
 142         __u64                   maxsize;
 143 };
 144
 145 /*
 146  * Arguments to the open_confirm call.
 147  */
 148 struct nfs_open_confirmargs {
 149         const struct nfs_fh *   fh;
 150         nfs4_stateid *          stateid;
 151         struct nfs_seqid *      seqid;
 152 };
 153
 154 struct nfs_open_confirmres {
 155         nfs4_stateid            stateid;
 156 };
 157
 158 /*
 159  * Arguments to the close call.
 160  */
 161 struct nfs_closeargs {
 162         struct nfs_fh *         fh;
 163         nfs4_stateid *          stateid;
 164         struct nfs_seqid *      seqid;
 165         int                     open_flags;
 166         const u32 *             bitmask;
 167 };
 168
 169 struct nfs_closeres {
 170         nfs4_stateid            stateid;
 171         struct nfs_fattr *      fattr;
 172         const struct nfs_server *server;
 173 };
 174 /*
 175  *  * Arguments to the lock,lockt, and locku call.
 176  *   */
 177 struct nfs_lowner {
 178         __u64                   clientid;
 179         u32                     id;
 180 };
 181
 182 struct nfs_lock_args {
 183         struct nfs_fh *         fh;
 184         struct file_lock *      fl;
 185         struct nfs_seqid *      lock_seqid;
 186         nfs4_stateid *          lock_stateid;
 187         struct nfs_seqid *      open_seqid;
 188         nfs4_stateid *          open_stateid;
 189         struct nfs_lowner       lock_owner;
 190         unsigned char           block : 1;
 191         unsigned char           reclaim : 1;
 192         unsigned char           new_lock_owner : 1;
 193 };
 194
 195 struct nfs_lock_res {
 196         nfs4_stateid                    stateid;
 197 };
 198
 199 struct nfs_locku_args {
 200         struct nfs_fh *         fh;
 201         struct file_lock *      fl;
 202         struct nfs_seqid *      seqid;
 203         nfs4_stateid *          stateid;
 204 };
 205
 206 struct nfs_locku_res {
 207         nfs4_stateid                    stateid;
 208 };
 209
 210 struct nfs_lockt_args {
 211         struct nfs_fh *         fh;
 212         struct file_lock *      fl;
 213         struct nfs_lowner       lock_owner;
 214 };
 215
 216 struct nfs_lockt_res {
 217         struct file_lock *      denied; /* LOCK, LOCKT failed */
 218 };
 219
 220 struct nfs4_delegreturnargs {
 221         const struct nfs_fh *fhandle;
 222         const nfs4_stateid *stateid;
 223         const u32 * bitmask;
 224 };
 225
 226 struct nfs4_delegreturnres {
 227         struct nfs_fattr * fattr;
 228         const struct nfs_server *server;
 229 };
 230
 231 /*
 232  * Arguments to the read call.
 233  */
 234 struct nfs_readargs {
 235         struct nfs_fh *         fh;
 236         struct nfs_open_context *context;
 237         __u64                   offset;
 238         __u32                   count;
 239         unsigned int            pgbase;
 240         struct page **          pages;
 241 };
 242
 243 struct nfs_readres {
 244         struct nfs_fattr *      fattr;
 245         __u32                   count;
 246         int                     eof;
 247 };
 248
 249 /*
 250  * Arguments to the write call.
 251  */
 252 struct nfs_writeargs {
 253         struct nfs_fh *         fh;
 254         struct nfs_open_context *context;
 255         __u64                   offset;
 256         __u32                   count;
 257         enum nfs3_stable_how    stable;
 258         unsigned int            pgbase;
 259         struct page **          pages;
 260         const u32 *             bitmask;
 261 };
 262
 263 struct nfs_writeverf {
 264         enum nfs3_stable_how    committed;
 265         __u32                   verifier[2];
 266 };
 267
 268 struct nfs_writeres {
 269         struct nfs_fattr *      fattr;
 270         struct nfs_writeverf *  verf;
 271         __u32                   count;
 272         const struct nfs_server *server;
 273 };
 274
 275 /*
 276  * Argument struct for decode_entry function
 277  */
 278 struct nfs_entry {
 279         __u64                   ino;
 280         __u64                   cookie,
 281                                 prev_cookie;
 282         const char *            name;
 283         unsigned int            len;
 284         int                     eof;
 285         struct nfs_fh *         fh;
 286         struct nfs_fattr *      fattr;
 287 };
 288
 289 /*
 290  * The following types are for NFSv2 only.
 291  */
 292 struct nfs_sattrargs {
 293         struct nfs_fh *         fh;
 294         struct iattr *          sattr;
 295 };
 296
 297 struct nfs_diropargs {
 298         struct nfs_fh *         fh;
 299         const char *            name;
 300         unsigned int            len;
 301 };
 302
 303 struct nfs_createargs {
 304         struct nfs_fh *         fh;
 305         const char *            name;
 306         unsigned int            len;
 307         struct iattr *          sattr;
 308 };
 309
 310 struct nfs_renameargs {
 311         struct nfs_fh *         fromfh;
 312         const char *            fromname;
 313         unsigned int            fromlen;
 314         struct nfs_fh *         tofh;
 315         const char *            toname;
 316         unsigned int            tolen;
 317 };
 318
 319 struct nfs_setattrargs {
 320         struct nfs_fh *                 fh;
 321         nfs4_stateid                    stateid;
 322         struct iattr *                  iap;
 323         const struct nfs_server *       server; /* Needed for name mapping */
 324         const u32 *                     bitmask;
 325 };
 326
 327 struct nfs_setaclargs {
 328         struct nfs_fh *                 fh;
 329         size_t                          acl_len;
 330         unsigned int                    acl_pgbase;
 331         struct page **                  acl_pages;
 332 };
 333
 334 struct nfs_getaclargs {
 335         struct nfs_fh *                 fh;
 336         size_t                          acl_len;
 337         unsigned int                    acl_pgbase;
 338         struct page **                  acl_pages;
 339 };
 340
 341 struct nfs_setattrres {
 342         struct nfs_fattr *              fattr;
 343         const struct nfs_server *       server;
 344 };
 345
 346 struct nfs_linkargs {
 347         struct nfs_fh *         fromfh;
 348         struct nfs_fh *         tofh;
 349         const char *            toname;
 350         unsigned int            tolen;
 351 };
 352
 353 struct nfs_symlinkargs {
 354         struct nfs_fh *         fromfh;
 355         const char *            fromname;
 356         unsigned int            fromlen;
 357         const char *            topath;
 358         unsigned int            tolen;
 359         struct iattr *          sattr;
 360 };
 361
 362 struct nfs_readdirargs {
 363         struct nfs_fh *         fh;
 364         __u32                   cookie;
 365         unsigned int            count;
 366         struct page **          pages;
 367 };
 368
 369 struct nfs3_getaclargs {
 370         struct nfs_fh *         fh;
 371         int                     mask;
 372         struct page **          pages;
 373 };
 374
 375 struct nfs3_setaclargs {
 376         struct inode *          inode;
 377         int                     mask;
 378         struct posix_acl *      acl_access;
 379         struct posix_acl *      acl_default;
 380         struct page **          pages;
 381 };
 382
 383 struct nfs_diropok {
 384         struct nfs_fh *         fh;
 385         struct nfs_fattr *      fattr;
 386 };
 387
 388 struct nfs_readlinkargs {
 389         struct nfs_fh *         fh;
 390         unsigned int            pgbase;
 391         unsigned int            pglen;
 392         struct page **          pages;
 393 };
 394
 395 struct nfs3_sattrargs {
 396         struct nfs_fh *         fh;
 397         struct iattr *          sattr;
 398         unsigned int            guard;
 399         struct timespec         guardtime;
 400 };
 401
 402 struct nfs3_diropargs {
 403         struct nfs_fh *         fh;
 404         const char *            name;
 405         unsigned int            len;
 406 };
 407
 408 struct nfs3_accessargs {
 409         struct nfs_fh *         fh;
 410         __u32                   access;
 411 };
 412
 413 struct nfs3_createargs {
 414         struct nfs_fh *         fh;
 415         const char *            name;
 416         unsigned int            len;
 417         struct iattr *          sattr;
 418         enum nfs3_createmode    createmode;
 419         __u32                   verifier[2];
 420 };
 421
 422 struct nfs3_mkdirargs {
 423         struct nfs_fh *         fh;
 424         const char *            name;
 425         unsigned int            len;
 426         struct iattr *          sattr;
 427 };
 428
 429 struct nfs3_symlinkargs {
 430         struct nfs_fh *         fromfh;
 431         const char *            fromname;
 432         unsigned int            fromlen;
 433         const char *            topath;
 434         unsigned int            tolen;
 435         struct iattr *          sattr;
 436 };
 437
 438 struct nfs3_mknodargs {
 439         struct nfs_fh *         fh;
 440         const char *            name;
 441         unsigned int            len;
 442         enum nfs3_ftype         type;
 443         struct iattr *          sattr;
 444         dev_t                   rdev;
 445 };
 446
 447 struct nfs3_renameargs {
 448         struct nfs_fh *         fromfh;
 449         const char *            fromname;
 450         unsigned int            fromlen;
 451         struct nfs_fh *         tofh;
 452         const char *            toname;
 453         unsigned int            tolen;
 454 };
 455
 456 struct nfs3_linkargs {
 457         struct nfs_fh *         fromfh;
 458         struct nfs_fh *         tofh;
 459         const char *            toname;
 460         unsigned int            tolen;
 461 };
 462
 463 struct nfs3_readdirargs {
 464         struct nfs_fh *         fh;
 465         __u64                   cookie;
 466         __u32                   verf[2];
 467         int                     plus;
 468         unsigned int            count;
 469         struct page **          pages;
 470 };
 471
 472 struct nfs3_diropres {
 473         struct nfs_fattr *      dir_attr;
 474         struct nfs_fh *         fh;
 475         struct nfs_fattr *      fattr;
 476 };
 477
 478 struct nfs3_accessres {
 479         struct nfs_fattr *      fattr;
 480         __u32                   access;
 481 };
 482
 483 struct nfs3_readlinkargs {
 484         struct nfs_fh *         fh;
 485         unsigned int            pgbase;
 486         unsigned int            pglen;
 487         struct page **          pages;
 488 };
 489
 490 struct nfs3_renameres {
 491         struct nfs_fattr *      fromattr;
 492         struct nfs_fattr *      toattr;
 493 };
 494
 495 struct nfs3_linkres {
 496         struct nfs_fattr *      dir_attr;
 497         struct nfs_fattr *      fattr;
 498 };
 499
 500 struct nfs3_readdirres {
 501         struct nfs_fattr *      dir_attr;
 502         __u32 *                 verf;
 503         int                     plus;
 504 };
 505
 506 struct nfs3_getaclres {
 507         struct nfs_fattr *      fattr;
 508         int                     mask;
 509         unsigned int            acl_access_count;
 510         unsigned int            acl_default_count;
 511         struct posix_acl *      acl_access;
 512         struct posix_acl *      acl_default;
 513 };
 514
 515 #ifdef CONFIG_NFS_V4
 516
 517 typedef u64 clientid4;
 518
 519 struct nfs4_accessargs {
 520         const struct nfs_fh *           fh;
 521         u32                             access;
 522 };
 523
 524 struct nfs4_accessres {
 525         u32                             supported;
 526         u32                             access;
 527 };
 528
 529 struct nfs4_create_arg {
 530         u32                             ftype;
 531         union {
 532                 struct qstr *           symlink;    /* NF4LNK */
 533                 struct {
 534                         u32             specdata1;
 535                         u32             specdata2;
 536                 } device;    /* NF4BLK, NF4CHR */
 537         } u;
 538         const struct qstr *             name;
 539         const struct nfs_server *       server;
 540         const struct iattr *            attrs;
 541         const struct nfs_fh *           dir_fh;
 542         const u32 *                     bitmask;
 543 };
 544
 545 struct nfs4_create_res {
 546         const struct nfs_server *       server;
 547         struct nfs_fh *                 fh;
 548         struct nfs_fattr *              fattr;
 549         struct nfs4_change_info         dir_cinfo;
 550         struct nfs_fattr *              dir_fattr;
 551 };
 552
 553 struct nfs4_fsinfo_arg {
 554         const struct nfs_fh *           fh;
 555         const u32 *                     bitmask;
 556 };
 557
 558 struct nfs4_getattr_arg {
 559         const struct nfs_fh *           fh;
 560         const u32 *                     bitmask;
 561 };
 562
 563 struct nfs4_getattr_res {
 564         const struct nfs_server *       server;
 565         struct nfs_fattr *              fattr;
 566 };
 567
 568 struct nfs4_link_arg {
 569         const struct nfs_fh *           fh;
 570         const struct nfs_fh *           dir_fh;
 571         const struct qstr *             name;
 572         const u32 *                     bitmask;
 573 };
 574
 575 struct nfs4_link_res {
 576         const struct nfs_server *       server;
 577         struct nfs_fattr *              fattr;
 578         struct nfs4_change_info         cinfo;
 579         struct nfs_fattr *              dir_attr;
 580 };
 581
 582
 583 struct nfs4_lookup_arg {
 584         const struct nfs_fh *           dir_fh;
 585         const struct qstr *             name;
 586         const u32 *                     bitmask;
 587 };
 588
 589 struct nfs4_lookup_res {
 590         const struct nfs_server *       server;
 591         struct nfs_fattr *              fattr;
 592         struct nfs_fh *                 fh;
 593 };
 594
 595 struct nfs4_lookup_root_arg {
 596         const u32 *                     bitmask;
 597 };
 598
 599 struct nfs4_pathconf_arg {
 600         const struct nfs_fh *           fh;
 601         const u32 *                     bitmask;
 602 };
 603
 604 struct nfs4_readdir_arg {
 605         const struct nfs_fh *           fh;
 606         u64                             cookie;
 607         nfs4_verifier                   verifier;
 608         u32                             count;
 609         struct page **                  pages;  /* zero-copy data */
 610         unsigned int                    pgbase; /* zero-copy data */
 611         const u32 *                     bitmask;
 612 };
 613
 614 struct nfs4_readdir_res {
 615         nfs4_verifier                   verifier;
 616         unsigned int                    pgbase;
 617 };
 618
 619 struct nfs4_readlink {
 620         const struct nfs_fh *           fh;
 621         unsigned int                    pgbase;
 622         unsigned int                    pglen;   /* zero-copy data */
 623         struct page **                  pages;   /* zero-copy data */
 624 };
 625
 626 struct nfs4_remove_arg {
 627         const struct nfs_fh *           fh;
 628         const struct qstr *             name;
 629         const u32 *                     bitmask;
 630 };
 631
 632 struct nfs4_remove_res {
 633         const struct nfs_server *       server;
 634         struct nfs4_change_info         cinfo;
 635         struct nfs_fattr *              dir_attr;
 636 };
 637
 638 struct nfs4_rename_arg {
 639         const struct nfs_fh *           old_dir;
 640         const struct nfs_fh *           new_dir;
 641         const struct qstr *             old_name;
 642         const struct qstr *             new_name;
 643         const u32 *                     bitmask;
 644 };
 645
 646 struct nfs4_rename_res {
 647         const struct nfs_server *       server;
 648         struct nfs4_change_info         old_cinfo;
 649         struct nfs_fattr *              old_fattr;
 650         struct nfs4_change_info         new_cinfo;
 651         struct nfs_fattr *              new_fattr;
 652 };
 653
 654 struct nfs4_setclientid {
 655         const nfs4_verifier *           sc_verifier;      /* request */
 656         unsigned int                    sc_name_len;
 657         char                            sc_name[32];      /* request */
 658         u32                             sc_prog;          /* request */
 659         unsigned int                    sc_netid_len;
 660         char                            sc_netid[4];      /* request */
 661         unsigned int                    sc_uaddr_len;
 662         char                            sc_uaddr[24];     /* request */
 663         u32                             sc_cb_ident;      /* request */
 664 };
 665
 666 struct nfs4_statfs_arg {
 667         const struct nfs_fh *           fh;
 668         const u32 *                     bitmask;
 669 };
 670
 671 struct nfs4_server_caps_res {
 672         u32                             attr_bitmask[2];
 673         u32                             acl_bitmask;
 674         u32                             has_links;
 675         u32                             has_symlinks;
 676 };
 677
 678 #endif /* CONFIG_NFS_V4 */
 679
 680 struct nfs_page;
 681
 682 #define NFS_PAGEVEC_SIZE        (8U)
 683
 684 struct nfs_read_data {
 685         int                     flags;
 686         struct rpc_task         task;
 687         struct inode            *inode;
 688         struct rpc_cred         *cred;
 689         struct nfs_fattr        fattr;  /* fattr storage */
 690         struct list_head        pages;  /* Coalesced read requests */
 691         struct nfs_page         *req;   /* multi ops per nfs_page */
 692         struct page             **pagevec;
 693         struct nfs_readargs args;
 694         struct nfs_readres  res;
 695 #ifdef CONFIG_NFS_V4
 696         unsigned long           timestamp;      /* For lease renewal */
 697 #endif
 698         void (*complete) (struct nfs_read_data *, int);
 699         struct page             *page_array[NFS_PAGEVEC_SIZE + 1];
 700 };
 701
 702 struct nfs_write_data {
 703         int                     flags;
 704         struct rpc_task         task;
 705         struct inode            *inode;
 706         struct rpc_cred         *cred;
 707         struct nfs_fattr        fattr;
 708         struct nfs_writeverf    verf;
 709         struct list_head        pages;          /* Coalesced requests we wish to flush */
 710         struct nfs_page         *req;           /* multi ops per nfs_page */
 711         struct page             **pagevec;
 712         struct nfs_writeargs    args;           /* argument struct */
 713         struct nfs_writeres     res;            /* result struct */
 714 #ifdef CONFIG_NFS_V4
 715         unsigned long           timestamp;      /* For lease renewal */
 716 #endif
 717         void (*complete) (struct nfs_write_data *, int);
 718         struct page             *page_array[NFS_PAGEVEC_SIZE + 1];
 719 };
 720
 721 struct nfs_access_entry;
 722
 723 /*
 724  * RPC procedure vector for NFSv2/NFSv3 demuxing
 725  */
 726 struct nfs_rpc_ops {
 727         int     version;                /* Protocol version */
 728         struct dentry_operations *dentry_ops;
 729         struct inode_operations *dir_inode_ops;
 730         struct inode_operations *file_inode_ops;
 731
 732         int     (*getroot) (struct nfs_server *, struct nfs_fh *,
 733                             struct nfs_fsinfo *);
 734         int     (*getattr) (struct nfs_server *, struct nfs_fh *,
 735                             struct nfs_fattr *);
 736         int     (*setattr) (struct dentry *, struct nfs_fattr *,
 737                             struct iattr *);
 738         int     (*lookup)  (struct inode *, struct qstr *,
 739                             struct nfs_fh *, struct nfs_fattr *);
 740         int     (*access)  (struct inode *, struct nfs_access_entry *);
 741         int     (*readlink)(struct inode *, struct page *, unsigned int,
 742                             unsigned int);
 743         int     (*read)    (struct nfs_read_data *);
 744         int     (*write)   (struct nfs_write_data *);
 745         int     (*commit)  (struct nfs_write_data *);
 746         int     (*create)  (struct inode *, struct dentry *,
 747                             struct iattr *, int, struct nameidata *);
 748         int     (*remove)  (struct inode *, struct qstr *);
 749         int     (*unlink_setup)  (struct rpc_message *,
 750                             struct dentry *, struct qstr *);
 751         int     (*unlink_done) (struct dentry *, struct rpc_task *);
 752         int     (*rename)  (struct inode *, struct qstr *,
 753                             struct inode *, struct qstr *);
 754         int     (*link)    (struct inode *, struct inode *, struct qstr *);
 755         int     (*symlink) (struct inode *, struct qstr *, struct qstr *,
 756                             struct iattr *, struct nfs_fh *,
 757                             struct nfs_fattr *);
 758         int     (*mkdir)   (struct inode *, struct dentry *, struct iattr *);
 759         int     (*rmdir)   (struct inode *, struct qstr *);
 760         int     (*readdir) (struct dentry *, struct rpc_cred *,
 761                             u64, struct page *, unsigned int, int);
 762         int     (*mknod)   (struct inode *, struct dentry *, struct iattr *,
 763                             dev_t);
 764         int     (*statfs)  (struct nfs_server *, struct nfs_fh *,
 765                             struct nfs_fsstat *);
 766         int     (*fsinfo)  (struct nfs_server *, struct nfs_fh *,
 767                             struct nfs_fsinfo *);
 768         int     (*pathconf) (struct nfs_server *, struct nfs_fh *,
 769                              struct nfs_pathconf *);
 770         u32 *   (*decode_dirent)(u32 *, struct nfs_entry *, int plus);
 771         void    (*read_setup)   (struct nfs_read_data *);
 772         void    (*write_setup)  (struct nfs_write_data *, int how);
 773         void    (*commit_setup) (struct nfs_write_data *, int how);
 774         int     (*file_open)   (struct inode *, struct file *);
 775         int     (*file_release) (struct inode *, struct file *);
 776         int     (*lock)(struct file *, int, struct file_lock *);
 777         void    (*clear_acl_cache)(struct inode *);
 778 };
 779
 780 /*
 781  *      NFS_CALL(getattr, inode, (fattr));
 782  * into
 783  *      NFS_PROTO(inode)->getattr(fattr);
 784  */
 785 #define NFS_CALL(op, inode, args)       NFS_PROTO(inode)->op args
 786
 787 /*
 788  * Function vectors etc. for the NFS client
 789  */
 790 extern struct nfs_rpc_ops       nfs_v2_clientops;
 791 extern struct nfs_rpc_ops       nfs_v3_clientops;
 792 extern struct nfs_rpc_ops       nfs_v4_clientops;
 793 extern struct rpc_version       nfs_version2;
 794 extern struct rpc_version       nfs_version3;
 795 extern struct rpc_version       nfs_version4;
 796
 797 extern struct rpc_version       nfsacl_version3;
 798 extern struct rpc_program       nfsacl_program;
 799
 800 #endif