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