include/linux/nfs_xdr.h

   1 #ifndef _LINUX_NFS_XDR_H
   2 #define _LINUX_NFS_XDR_H
   3
   4 #include <linux/nfsacl.h>
   5 #include <linux/sunrpc/gss_api.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 /* Forward declaration for NFS v3 */
  18 struct nfs4_secinfo_flavors;
  19
  20 struct nfs4_string {
  21         unsigned int len;
  22         char *data;
  23 };
  24
  25 struct nfs_fsid {
  26         uint64_t                major;
  27         uint64_t                minor;
  28 };
  29
  30 /*
  31  * Helper for checking equality between 2 fsids.
  32  */
  33 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
  34 {
  35         return a->major == b->major && a->minor == b->minor;
  36 }
  37
  38 struct nfs4_threshold {
  39         __u32   bm;
  40         __u32   l_type;
  41         __u64   rd_sz;
  42         __u64   wr_sz;
  43         __u64   rd_io_sz;
  44         __u64   wr_io_sz;
  45 };
  46
  47 struct nfs_fattr {
  48         unsigned int            valid;          /* which fields are valid */
  49         umode_t                 mode;
  50         __u32                   nlink;
  51         __u32                   uid;
  52         __u32                   gid;
  53         dev_t                   rdev;
  54         __u64                   size;
  55         union {
  56                 struct {
  57                         __u32   blocksize;
  58                         __u32   blocks;
  59                 } nfs2;
  60                 struct {
  61                         __u64   used;
  62                 } nfs3;
  63         } du;
  64         struct nfs_fsid         fsid;
  65         __u64                   fileid;
  66         __u64                   mounted_on_fileid;
  67         struct timespec         atime;
  68         struct timespec         mtime;
  69         struct timespec         ctime;
  70         __u64                   change_attr;    /* NFSv4 change attribute */
  71         __u64                   pre_change_attr;/* pre-op NFSv4 change attribute */
  72         __u64                   pre_size;       /* pre_op_attr.size       */
  73         struct timespec         pre_mtime;      /* pre_op_attr.mtime      */
  74         struct timespec         pre_ctime;      /* pre_op_attr.ctime      */
  75         unsigned long           time_start;
  76         unsigned long           gencount;
  77         struct nfs4_string      *owner_name;
  78         struct nfs4_string      *group_name;
  79         struct nfs4_threshold   *mdsthreshold;  /* pNFS threshold hints */
  80 };
  81
  82 #define NFS_ATTR_FATTR_TYPE             (1U << 0)
  83 #define NFS_ATTR_FATTR_MODE             (1U << 1)
  84 #define NFS_ATTR_FATTR_NLINK            (1U << 2)
  85 #define NFS_ATTR_FATTR_OWNER            (1U << 3)
  86 #define NFS_ATTR_FATTR_GROUP            (1U << 4)
  87 #define NFS_ATTR_FATTR_RDEV             (1U << 5)
  88 #define NFS_ATTR_FATTR_SIZE             (1U << 6)
  89 #define NFS_ATTR_FATTR_PRESIZE          (1U << 7)
  90 #define NFS_ATTR_FATTR_BLOCKS_USED      (1U << 8)
  91 #define NFS_ATTR_FATTR_SPACE_USED       (1U << 9)
  92 #define NFS_ATTR_FATTR_FSID             (1U << 10)
  93 #define NFS_ATTR_FATTR_FILEID           (1U << 11)
  94 #define NFS_ATTR_FATTR_ATIME            (1U << 12)
  95 #define NFS_ATTR_FATTR_MTIME            (1U << 13)
  96 #define NFS_ATTR_FATTR_CTIME            (1U << 14)
  97 #define NFS_ATTR_FATTR_PREMTIME         (1U << 15)
  98 #define NFS_ATTR_FATTR_PRECTIME         (1U << 16)
  99 #define NFS_ATTR_FATTR_CHANGE           (1U << 17)
 100 #define NFS_ATTR_FATTR_PRECHANGE        (1U << 18)
 101 #define NFS_ATTR_FATTR_V4_LOCATIONS     (1U << 19)
 102 #define NFS_ATTR_FATTR_V4_REFERRAL      (1U << 20)
 103 #define NFS_ATTR_FATTR_MOUNTPOINT       (1U << 21)
 104 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
 105 #define NFS_ATTR_FATTR_OWNER_NAME       (1U << 23)
 106 #define NFS_ATTR_FATTR_GROUP_NAME       (1U << 24)
 107
 108 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
 109                 | NFS_ATTR_FATTR_MODE \
 110                 | NFS_ATTR_FATTR_NLINK \
 111                 | NFS_ATTR_FATTR_OWNER \
 112                 | NFS_ATTR_FATTR_GROUP \
 113                 | NFS_ATTR_FATTR_RDEV \
 114                 | NFS_ATTR_FATTR_SIZE \
 115                 | NFS_ATTR_FATTR_FSID \
 116                 | NFS_ATTR_FATTR_FILEID \
 117                 | NFS_ATTR_FATTR_ATIME \
 118                 | NFS_ATTR_FATTR_MTIME \
 119                 | NFS_ATTR_FATTR_CTIME \
 120                 | NFS_ATTR_FATTR_CHANGE)
 121 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
 122                 | NFS_ATTR_FATTR_BLOCKS_USED)
 123 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
 124                 | NFS_ATTR_FATTR_SPACE_USED)
 125 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
 126                 | NFS_ATTR_FATTR_SPACE_USED)
 127
 128 /*
 129  * Info on the file system
 130  */
 131 struct nfs_fsinfo {
 132         struct nfs_fattr        *fattr; /* Post-op attributes */
 133         __u32                   rtmax;  /* max.  read transfer size */
 134         __u32                   rtpref; /* pref. read transfer size */
 135         __u32                   rtmult; /* reads should be multiple of this */
 136         __u32                   wtmax;  /* max.  write transfer size */
 137         __u32                   wtpref; /* pref. write transfer size */
 138         __u32                   wtmult; /* writes should be multiple of this */
 139         __u32                   dtpref; /* pref. readdir transfer size */
 140         __u64                   maxfilesize;
 141         struct timespec         time_delta; /* server time granularity */
 142         __u32                   lease_time; /* in seconds */
 143         __u32                   layouttype; /* supported pnfs layout driver */
 144         __u32                   blksize; /* preferred pnfs io block size */
 145 };
 146
 147 struct nfs_fsstat {
 148         struct nfs_fattr        *fattr; /* Post-op attributes */
 149         __u64                   tbytes; /* total size in bytes */
 150         __u64                   fbytes; /* # of free bytes */
 151         __u64                   abytes; /* # of bytes available to user */
 152         __u64                   tfiles; /* # of files */
 153         __u64                   ffiles; /* # of free files */
 154         __u64                   afiles; /* # of files available to user */
 155 };
 156
 157 struct nfs2_fsstat {
 158         __u32                   tsize;  /* Server transfer size */
 159         __u32                   bsize;  /* Filesystem block size */
 160         __u32                   blocks; /* No. of "bsize" blocks on filesystem */
 161         __u32                   bfree;  /* No. of free "bsize" blocks */
 162         __u32                   bavail; /* No. of available "bsize" blocks */
 163 };
 164
 165 struct nfs_pathconf {
 166         struct nfs_fattr        *fattr; /* Post-op attributes */
 167         __u32                   max_link; /* max # of hard links */
 168         __u32                   max_namelen; /* max name length */
 169 };
 170
 171 struct nfs4_change_info {
 172         u32                     atomic;
 173         u64                     before;
 174         u64                     after;
 175 };
 176
 177 struct nfs_seqid;
 178
 179 /* nfs41 sessions channel attributes */
 180 struct nfs4_channel_attrs {
 181         u32                     max_rqst_sz;
 182         u32                     max_resp_sz;
 183         u32                     max_resp_sz_cached;
 184         u32                     max_ops;
 185         u32                     max_reqs;
 186 };
 187
 188 /* nfs41 sessions slot seqid */
 189 struct nfs4_slot {
 190         u32                     seq_nr;
 191 };
 192
 193 struct nfs4_sequence_args {
 194         struct nfs4_session     *sa_session;
 195         u32                     sa_slotid;
 196         u8                      sa_cache_this;
 197 };
 198
 199 struct nfs4_sequence_res {
 200         struct nfs4_session     *sr_session;
 201         struct nfs4_slot        *sr_slot;       /* slot used to send request */
 202         int                     sr_status;      /* sequence operation status */
 203         unsigned long           sr_renewal_time;
 204         u32                     sr_status_flags;
 205 };
 206
 207 struct nfs4_get_lease_time_args {
 208         struct nfs4_sequence_args       la_seq_args;
 209 };
 210
 211 struct nfs4_get_lease_time_res {
 212         struct nfs_fsinfo              *lr_fsinfo;
 213         struct nfs4_sequence_res        lr_seq_res;
 214 };
 215
 216 #define PNFS_LAYOUT_MAXSIZE 4096
 217
 218 struct nfs4_layoutdriver_data {
 219         struct page **pages;
 220         __u32 pglen;
 221         __u32 len;
 222 };
 223
 224 struct pnfs_layout_range {
 225         u32 iomode;
 226         u64 offset;
 227         u64 length;
 228 };
 229
 230 struct nfs4_layoutget_args {
 231         __u32 type;
 232         struct pnfs_layout_range range;
 233         __u64 minlength;
 234         __u32 maxcount;
 235         struct inode *inode;
 236         struct nfs_open_context *ctx;
 237         struct nfs4_sequence_args seq_args;
 238         nfs4_stateid stateid;
 239         struct nfs4_layoutdriver_data layout;
 240 };
 241
 242 struct nfs4_layoutget_res {
 243         __u32 return_on_close;
 244         struct pnfs_layout_range range;
 245         __u32 type;
 246         nfs4_stateid stateid;
 247         struct nfs4_sequence_res seq_res;
 248         struct nfs4_layoutdriver_data *layoutp;
 249 };
 250
 251 struct nfs4_layoutget {
 252         struct nfs4_layoutget_args args;
 253         struct nfs4_layoutget_res res;
 254         struct pnfs_layout_segment **lsegpp;
 255         gfp_t gfp_flags;
 256 };
 257
 258 struct nfs4_getdevicelist_args {
 259         const struct nfs_fh *fh;
 260         u32 layoutclass;
 261         struct nfs4_sequence_args seq_args;
 262 };
 263
 264 struct nfs4_getdevicelist_res {
 265         struct pnfs_devicelist *devlist;
 266         struct nfs4_sequence_res seq_res;
 267 };
 268
 269 struct nfs4_getdeviceinfo_args {
 270         struct pnfs_device *pdev;
 271         struct nfs4_sequence_args seq_args;
 272 };
 273
 274 struct nfs4_getdeviceinfo_res {
 275         struct pnfs_device *pdev;
 276         struct nfs4_sequence_res seq_res;
 277 };
 278
 279 struct nfs4_layoutcommit_args {
 280         nfs4_stateid stateid;
 281         __u64 lastbytewritten;
 282         struct inode *inode;
 283         const u32 *bitmask;
 284         struct nfs4_sequence_args seq_args;
 285 };
 286
 287 struct nfs4_layoutcommit_res {
 288         struct nfs_fattr *fattr;
 289         const struct nfs_server *server;
 290         struct nfs4_sequence_res seq_res;
 291         int status;
 292 };
 293
 294 struct nfs4_layoutcommit_data {
 295         struct rpc_task task;
 296         struct nfs_fattr fattr;
 297         struct list_head lseg_list;
 298         struct rpc_cred *cred;
 299         struct nfs4_layoutcommit_args args;
 300         struct nfs4_layoutcommit_res res;
 301 };
 302
 303 struct nfs4_layoutreturn_args {
 304         struct pnfs_layout_hdr *layout;
 305         struct inode *inode;
 306         nfs4_stateid stateid;
 307         __u32   layout_type;
 308         struct nfs4_sequence_args seq_args;
 309 };
 310
 311 struct nfs4_layoutreturn_res {
 312         struct nfs4_sequence_res seq_res;
 313         u32 lrs_present;
 314         nfs4_stateid stateid;
 315 };
 316
 317 struct nfs4_layoutreturn {
 318         struct nfs4_layoutreturn_args args;
 319         struct nfs4_layoutreturn_res res;
 320         struct rpc_cred *cred;
 321         struct nfs_client *clp;
 322         int rpc_status;
 323 };
 324
 325 struct stateowner_id {
 326         __u64   create_time;
 327         __u32   uniquifier;
 328 };
 329
 330 /*
 331  * Arguments to the open call.
 332  */
 333 struct nfs_openargs {
 334         const struct nfs_fh *   fh;
 335         struct nfs_seqid *      seqid;
 336         int                     open_flags;
 337         fmode_t                 fmode;
 338         __u64                   clientid;
 339         struct stateowner_id    id;
 340         union {
 341                 struct {
 342                         struct iattr *  attrs;    /* UNCHECKED, GUARDED */
 343                         nfs4_verifier   verifier; /* EXCLUSIVE */
 344                 };
 345                 nfs4_stateid    delegation;             /* CLAIM_DELEGATE_CUR */
 346                 fmode_t         delegation_type;        /* CLAIM_PREVIOUS */
 347         } u;
 348         const struct qstr *     name;
 349         const struct nfs_server *server;         /* Needed for ID mapping */
 350         const u32 *             bitmask;
 351         const u32 *             open_bitmap;
 352         __u32                   claim;
 353         struct nfs4_sequence_args       seq_args;
 354 };
 355
 356 struct nfs_openres {
 357         nfs4_stateid            stateid;
 358         struct nfs_fh           fh;
 359         struct nfs4_change_info cinfo;
 360         __u32                   rflags;
 361         struct nfs_fattr *      f_attr;
 362         struct nfs_seqid *      seqid;
 363         const struct nfs_server *server;
 364         fmode_t                 delegation_type;
 365         nfs4_stateid            delegation;
 366         __u32                   do_recall;
 367         __u64                   maxsize;
 368         __u32                   attrset[NFS4_BITMAP_SIZE];
 369         struct nfs4_string      *owner;
 370         struct nfs4_string      *group_owner;
 371         struct nfs4_sequence_res        seq_res;
 372 };
 373
 374 /*
 375  * Arguments to the open_confirm call.
 376  */
 377 struct nfs_open_confirmargs {
 378         const struct nfs_fh *   fh;
 379         nfs4_stateid *          stateid;
 380         struct nfs_seqid *      seqid;
 381 };
 382
 383 struct nfs_open_confirmres {
 384         nfs4_stateid            stateid;
 385         struct nfs_seqid *      seqid;
 386 };
 387
 388 /*
 389  * Arguments to the close call.
 390  */
 391 struct nfs_closeargs {
 392         struct nfs_fh *         fh;
 393         nfs4_stateid *          stateid;
 394         struct nfs_seqid *      seqid;
 395         fmode_t                 fmode;
 396         const u32 *             bitmask;
 397         struct nfs4_sequence_args       seq_args;
 398 };
 399
 400 struct nfs_closeres {
 401         nfs4_stateid            stateid;
 402         struct nfs_fattr *      fattr;
 403         struct nfs_seqid *      seqid;
 404         const struct nfs_server *server;
 405         struct nfs4_sequence_res        seq_res;
 406 };
 407 /*
 408  *  * Arguments to the lock,lockt, and locku call.
 409  *   */
 410 struct nfs_lowner {
 411         __u64                   clientid;
 412         __u64                   id;
 413         dev_t                   s_dev;
 414 };
 415
 416 struct nfs_lock_args {
 417         struct nfs_fh *         fh;
 418         struct file_lock *      fl;
 419         struct nfs_seqid *      lock_seqid;
 420         nfs4_stateid *          lock_stateid;
 421         struct nfs_seqid *      open_seqid;
 422         nfs4_stateid *          open_stateid;
 423         struct nfs_lowner       lock_owner;
 424         unsigned char           block : 1;
 425         unsigned char           reclaim : 1;
 426         unsigned char           new_lock_owner : 1;
 427         struct nfs4_sequence_args       seq_args;
 428 };
 429
 430 struct nfs_lock_res {
 431         nfs4_stateid            stateid;
 432         struct nfs_seqid *      lock_seqid;
 433         struct nfs_seqid *      open_seqid;
 434         struct nfs4_sequence_res        seq_res;
 435 };
 436
 437 struct nfs_locku_args {
 438         struct nfs_fh *         fh;
 439         struct file_lock *      fl;
 440         struct nfs_seqid *      seqid;
 441         nfs4_stateid *          stateid;
 442         struct nfs4_sequence_args       seq_args;
 443 };
 444
 445 struct nfs_locku_res {
 446         nfs4_stateid            stateid;
 447         struct nfs_seqid *      seqid;
 448         struct nfs4_sequence_res        seq_res;
 449 };
 450
 451 struct nfs_lockt_args {
 452         struct nfs_fh *         fh;
 453         struct file_lock *      fl;
 454         struct nfs_lowner       lock_owner;
 455         struct nfs4_sequence_args       seq_args;
 456 };
 457
 458 struct nfs_lockt_res {
 459         struct file_lock *      denied; /* LOCK, LOCKT failed */
 460         struct nfs4_sequence_res        seq_res;
 461 };
 462
 463 struct nfs_release_lockowner_args {
 464         struct nfs_lowner       lock_owner;
 465 };
 466
 467 struct nfs4_delegreturnargs {
 468         const struct nfs_fh *fhandle;
 469         const nfs4_stateid *stateid;
 470         const u32 * bitmask;
 471         struct nfs4_sequence_args       seq_args;
 472 };
 473
 474 struct nfs4_delegreturnres {
 475         struct nfs_fattr * fattr;
 476         const struct nfs_server *server;
 477         struct nfs4_sequence_res        seq_res;
 478 };
 479
 480 /*
 481  * Arguments to the read call.
 482  */
 483 struct nfs_readargs {
 484         struct nfs_fh *         fh;
 485         struct nfs_open_context *context;
 486         struct nfs_lock_context *lock_context;
 487         __u64                   offset;
 488         __u32                   count;
 489         unsigned int            pgbase;
 490         struct page **          pages;
 491         struct nfs4_sequence_args       seq_args;
 492 };
 493
 494 struct nfs_readres {
 495         struct nfs_fattr *      fattr;
 496         __u32                   count;
 497         int                     eof;
 498         struct nfs4_sequence_res        seq_res;
 499 };
 500
 501 /*
 502  * Arguments to the write call.
 503  */
 504 struct nfs_writeargs {
 505         struct nfs_fh *         fh;
 506         struct nfs_open_context *context;
 507         struct nfs_lock_context *lock_context;
 508         __u64                   offset;
 509         __u32                   count;
 510         enum nfs3_stable_how    stable;
 511         unsigned int            pgbase;
 512         struct page **          pages;
 513         const u32 *             bitmask;
 514         struct nfs4_sequence_args       seq_args;
 515 };
 516
 517 struct nfs_writeverf {
 518         enum nfs3_stable_how    committed;
 519         __be32                  verifier[2];
 520 };
 521
 522 struct nfs_writeres {
 523         struct nfs_fattr *      fattr;
 524         struct nfs_writeverf *  verf;
 525         __u32                   count;
 526         const struct nfs_server *server;
 527         struct nfs4_sequence_res        seq_res;
 528 };
 529
 530 /*
 531  * Arguments to the commit call.
 532  */
 533 struct nfs_commitargs {
 534         struct nfs_fh           *fh;
 535         __u64                   offset;
 536         __u32                   count;
 537         const u32               *bitmask;
 538         struct nfs4_sequence_args       seq_args;
 539 };
 540
 541 struct nfs_commitres {
 542         struct nfs_fattr        *fattr;
 543         struct nfs_writeverf    *verf;
 544         const struct nfs_server *server;
 545         struct nfs4_sequence_res        seq_res;
 546 };
 547
 548 /*
 549  * Common arguments to the unlink call
 550  */
 551 struct nfs_removeargs {
 552         const struct nfs_fh     *fh;
 553         struct qstr             name;
 554         struct nfs4_sequence_args       seq_args;
 555 };
 556
 557 struct nfs_removeres {
 558         const struct nfs_server *server;
 559         struct nfs_fattr        *dir_attr;
 560         struct nfs4_change_info cinfo;
 561         struct nfs4_sequence_res        seq_res;
 562 };
 563
 564 /*
 565  * Common arguments to the rename call
 566  */
 567 struct nfs_renameargs {
 568         const struct nfs_fh             *old_dir;
 569         const struct nfs_fh             *new_dir;
 570         const struct qstr               *old_name;
 571         const struct qstr               *new_name;
 572         struct nfs4_sequence_args       seq_args;
 573 };
 574
 575 struct nfs_renameres {
 576         const struct nfs_server         *server;
 577         struct nfs4_change_info         old_cinfo;
 578         struct nfs_fattr                *old_fattr;
 579         struct nfs4_change_info         new_cinfo;
 580         struct nfs_fattr                *new_fattr;
 581         struct nfs4_sequence_res        seq_res;
 582 };
 583
 584 /*
 585  * Argument struct for decode_entry function
 586  */
 587 struct nfs_entry {
 588         __u64                   ino;
 589         __u64                   cookie,
 590                                 prev_cookie;
 591         const char *            name;
 592         unsigned int            len;
 593         int                     eof;
 594         struct nfs_fh *         fh;
 595         struct nfs_fattr *      fattr;
 596         unsigned char           d_type;
 597         struct nfs_server *     server;
 598 };
 599
 600 /*
 601  * The following types are for NFSv2 only.
 602  */
 603 struct nfs_sattrargs {
 604         struct nfs_fh *         fh;
 605         struct iattr *          sattr;
 606 };
 607
 608 struct nfs_diropargs {
 609         struct nfs_fh *         fh;
 610         const char *            name;
 611         unsigned int            len;
 612 };
 613
 614 struct nfs_createargs {
 615         struct nfs_fh *         fh;
 616         const char *            name;
 617         unsigned int            len;
 618         struct iattr *          sattr;
 619 };
 620
 621 struct nfs_setattrargs {
 622         struct nfs_fh *                 fh;
 623         nfs4_stateid                    stateid;
 624         struct iattr *                  iap;
 625         const struct nfs_server *       server; /* Needed for name mapping */
 626         const u32 *                     bitmask;
 627         struct nfs4_sequence_args       seq_args;
 628 };
 629
 630 struct nfs_setaclargs {
 631         struct nfs_fh *                 fh;
 632         size_t                          acl_len;
 633         unsigned int                    acl_pgbase;
 634         struct page **                  acl_pages;
 635         struct nfs4_sequence_args       seq_args;
 636 };
 637
 638 struct nfs_setaclres {
 639         struct nfs4_sequence_res        seq_res;
 640 };
 641
 642 struct nfs_getaclargs {
 643         struct nfs_fh *                 fh;
 644         size_t                          acl_len;
 645         unsigned int                    acl_pgbase;
 646         struct page **                  acl_pages;
 647         struct nfs4_sequence_args       seq_args;
 648 };
 649
 650 /* getxattr ACL interface flags */
 651 #define NFS4_ACL_LEN_REQUEST    0x0001  /* zero length getxattr buffer */
 652 struct nfs_getaclres {
 653         size_t                          acl_len;
 654         size_t                          acl_data_offset;
 655         int                             acl_flags;
 656         struct page *                   acl_scratch;
 657         struct nfs4_sequence_res        seq_res;
 658 };
 659
 660 struct nfs_setattrres {
 661         struct nfs_fattr *              fattr;
 662         const struct nfs_server *       server;
 663         struct nfs4_sequence_res        seq_res;
 664 };
 665
 666 struct nfs_linkargs {
 667         struct nfs_fh *         fromfh;
 668         struct nfs_fh *         tofh;
 669         const char *            toname;
 670         unsigned int            tolen;
 671 };
 672
 673 struct nfs_symlinkargs {
 674         struct nfs_fh *         fromfh;
 675         const char *            fromname;
 676         unsigned int            fromlen;
 677         struct page **          pages;
 678         unsigned int            pathlen;
 679         struct iattr *          sattr;
 680 };
 681
 682 struct nfs_readdirargs {
 683         struct nfs_fh *         fh;
 684         __u32                   cookie;
 685         unsigned int            count;
 686         struct page **          pages;
 687 };
 688
 689 struct nfs3_getaclargs {
 690         struct nfs_fh *         fh;
 691         int                     mask;
 692         struct page **          pages;
 693 };
 694
 695 struct nfs3_setaclargs {
 696         struct inode *          inode;
 697         int                     mask;
 698         struct posix_acl *      acl_access;
 699         struct posix_acl *      acl_default;
 700         size_t                  len;
 701         unsigned int            npages;
 702         struct page **          pages;
 703 };
 704
 705 struct nfs_diropok {
 706         struct nfs_fh *         fh;
 707         struct nfs_fattr *      fattr;
 708 };
 709
 710 struct nfs_readlinkargs {
 711         struct nfs_fh *         fh;
 712         unsigned int            pgbase;
 713         unsigned int            pglen;
 714         struct page **          pages;
 715 };
 716
 717 struct nfs3_sattrargs {
 718         struct nfs_fh *         fh;
 719         struct iattr *          sattr;
 720         unsigned int            guard;
 721         struct timespec         guardtime;
 722 };
 723
 724 struct nfs3_diropargs {
 725         struct nfs_fh *         fh;
 726         const char *            name;
 727         unsigned int            len;
 728 };
 729
 730 struct nfs3_accessargs {
 731         struct nfs_fh *         fh;
 732         __u32                   access;
 733 };
 734
 735 struct nfs3_createargs {
 736         struct nfs_fh *         fh;
 737         const char *            name;
 738         unsigned int            len;
 739         struct iattr *          sattr;
 740         enum nfs3_createmode    createmode;
 741         __be32                  verifier[2];
 742 };
 743
 744 struct nfs3_mkdirargs {
 745         struct nfs_fh *         fh;
 746         const char *            name;
 747         unsigned int            len;
 748         struct iattr *          sattr;
 749 };
 750
 751 struct nfs3_symlinkargs {
 752         struct nfs_fh *         fromfh;
 753         const char *            fromname;
 754         unsigned int            fromlen;
 755         struct page **          pages;
 756         unsigned int            pathlen;
 757         struct iattr *          sattr;
 758 };
 759
 760 struct nfs3_mknodargs {
 761         struct nfs_fh *         fh;
 762         const char *            name;
 763         unsigned int            len;
 764         enum nfs3_ftype         type;
 765         struct iattr *          sattr;
 766         dev_t                   rdev;
 767 };
 768
 769 struct nfs3_linkargs {
 770         struct nfs_fh *         fromfh;
 771         struct nfs_fh *         tofh;
 772         const char *            toname;
 773         unsigned int            tolen;
 774 };
 775
 776 struct nfs3_readdirargs {
 777         struct nfs_fh *         fh;
 778         __u64                   cookie;
 779         __be32                  verf[2];
 780         int                     plus;
 781         unsigned int            count;
 782         struct page **          pages;
 783 };
 784
 785 struct nfs3_diropres {
 786         struct nfs_fattr *      dir_attr;
 787         struct nfs_fh *         fh;
 788         struct nfs_fattr *      fattr;
 789 };
 790
 791 struct nfs3_accessres {
 792         struct nfs_fattr *      fattr;
 793         __u32                   access;
 794 };
 795
 796 struct nfs3_readlinkargs {
 797         struct nfs_fh *         fh;
 798         unsigned int            pgbase;
 799         unsigned int            pglen;
 800         struct page **          pages;
 801 };
 802
 803 struct nfs3_linkres {
 804         struct nfs_fattr *      dir_attr;
 805         struct nfs_fattr *      fattr;
 806 };
 807
 808 struct nfs3_readdirres {
 809         struct nfs_fattr *      dir_attr;
 810         __be32 *                verf;
 811         int                     plus;
 812 };
 813
 814 struct nfs3_getaclres {
 815         struct nfs_fattr *      fattr;
 816         int                     mask;
 817         unsigned int            acl_access_count;
 818         unsigned int            acl_default_count;
 819         struct posix_acl *      acl_access;
 820         struct posix_acl *      acl_default;
 821 };
 822
 823 #ifdef CONFIG_NFS_V4
 824
 825 typedef u64 clientid4;
 826
 827 struct nfs4_accessargs {
 828         const struct nfs_fh *           fh;
 829         const u32 *                     bitmask;
 830         u32                             access;
 831         struct nfs4_sequence_args       seq_args;
 832 };
 833
 834 struct nfs4_accessres {
 835         const struct nfs_server *       server;
 836         struct nfs_fattr *              fattr;
 837         u32                             supported;
 838         u32                             access;
 839         struct nfs4_sequence_res        seq_res;
 840 };
 841
 842 struct nfs4_create_arg {
 843         u32                             ftype;
 844         union {
 845                 struct {
 846                         struct page **  pages;
 847                         unsigned int    len;
 848                 } symlink;   /* NF4LNK */
 849                 struct {
 850                         u32             specdata1;
 851                         u32             specdata2;
 852                 } device;    /* NF4BLK, NF4CHR */
 853         } u;
 854         const struct qstr *             name;
 855         const struct nfs_server *       server;
 856         const struct iattr *            attrs;
 857         const struct nfs_fh *           dir_fh;
 858         const u32 *                     bitmask;
 859         struct nfs4_sequence_args       seq_args;
 860 };
 861
 862 struct nfs4_create_res {
 863         const struct nfs_server *       server;
 864         struct nfs_fh *                 fh;
 865         struct nfs_fattr *              fattr;
 866         struct nfs4_change_info         dir_cinfo;
 867         struct nfs4_sequence_res        seq_res;
 868 };
 869
 870 struct nfs4_fsinfo_arg {
 871         const struct nfs_fh *           fh;
 872         const u32 *                     bitmask;
 873         struct nfs4_sequence_args       seq_args;
 874 };
 875
 876 struct nfs4_fsinfo_res {
 877         struct nfs_fsinfo              *fsinfo;
 878         struct nfs4_sequence_res        seq_res;
 879 };
 880
 881 struct nfs4_getattr_arg {
 882         const struct nfs_fh *           fh;
 883         const u32 *                     bitmask;
 884         struct nfs4_sequence_args       seq_args;
 885 };
 886
 887 struct nfs4_getattr_res {
 888         const struct nfs_server *       server;
 889         struct nfs_fattr *              fattr;
 890         struct nfs4_sequence_res        seq_res;
 891 };
 892
 893 struct nfs4_link_arg {
 894         const struct nfs_fh *           fh;
 895         const struct nfs_fh *           dir_fh;
 896         const struct qstr *             name;
 897         const u32 *                     bitmask;
 898         struct nfs4_sequence_args       seq_args;
 899 };
 900
 901 struct nfs4_link_res {
 902         const struct nfs_server *       server;
 903         struct nfs_fattr *              fattr;
 904         struct nfs4_change_info         cinfo;
 905         struct nfs_fattr *              dir_attr;
 906         struct nfs4_sequence_res        seq_res;
 907 };
 908
 909
 910 struct nfs4_lookup_arg {
 911         const struct nfs_fh *           dir_fh;
 912         const struct qstr *             name;
 913         const u32 *                     bitmask;
 914         struct nfs4_sequence_args       seq_args;
 915 };
 916
 917 struct nfs4_lookup_res {
 918         const struct nfs_server *       server;
 919         struct nfs_fattr *              fattr;
 920         struct nfs_fh *                 fh;
 921         struct nfs4_sequence_res        seq_res;
 922 };
 923
 924 struct nfs4_lookup_root_arg {
 925         const u32 *                     bitmask;
 926         struct nfs4_sequence_args       seq_args;
 927 };
 928
 929 struct nfs4_pathconf_arg {
 930         const struct nfs_fh *           fh;
 931         const u32 *                     bitmask;
 932         struct nfs4_sequence_args       seq_args;
 933 };
 934
 935 struct nfs4_pathconf_res {
 936         struct nfs_pathconf            *pathconf;
 937         struct nfs4_sequence_res        seq_res;
 938 };
 939
 940 struct nfs4_readdir_arg {
 941         const struct nfs_fh *           fh;
 942         u64                             cookie;
 943         nfs4_verifier                   verifier;
 944         u32                             count;
 945         struct page **                  pages;  /* zero-copy data */
 946         unsigned int                    pgbase; /* zero-copy data */
 947         const u32 *                     bitmask;
 948         int                             plus;
 949         struct nfs4_sequence_args       seq_args;
 950 };
 951
 952 struct nfs4_readdir_res {
 953         nfs4_verifier                   verifier;
 954         unsigned int                    pgbase;
 955         struct nfs4_sequence_res        seq_res;
 956 };
 957
 958 struct nfs4_readlink {
 959         const struct nfs_fh *           fh;
 960         unsigned int                    pgbase;
 961         unsigned int                    pglen;   /* zero-copy data */
 962         struct page **                  pages;   /* zero-copy data */
 963         struct nfs4_sequence_args       seq_args;
 964 };
 965
 966 struct nfs4_readlink_res {
 967         struct nfs4_sequence_res        seq_res;
 968 };
 969
 970 #define NFS4_SETCLIENTID_NAMELEN        (127)
 971 struct nfs4_setclientid {
 972         const nfs4_verifier *           sc_verifier;
 973         unsigned int                    sc_name_len;
 974         char                            sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
 975         u32                             sc_prog;
 976         unsigned int                    sc_netid_len;
 977         char                            sc_netid[RPCBIND_MAXNETIDLEN + 1];
 978         unsigned int                    sc_uaddr_len;
 979         char                            sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
 980         u32                             sc_cb_ident;
 981 };
 982
 983 struct nfs4_setclientid_res {
 984         u64                             clientid;
 985         nfs4_verifier                   confirm;
 986 };
 987
 988 struct nfs4_statfs_arg {
 989         const struct nfs_fh *           fh;
 990         const u32 *                     bitmask;
 991         struct nfs4_sequence_args       seq_args;
 992 };
 993
 994 struct nfs4_statfs_res {
 995         struct nfs_fsstat              *fsstat;
 996         struct nfs4_sequence_res        seq_res;
 997 };
 998
 999 struct nfs4_server_caps_arg {
1000         struct nfs_fh                  *fhandle;
1001         struct nfs4_sequence_args       seq_args;
1002 };
1003
1004 struct nfs4_server_caps_res {
1005         u32                             attr_bitmask[3];
1006         u32                             acl_bitmask;
1007         u32                             has_links;
1008         u32                             has_symlinks;
1009         u32                             fh_expire_type;
1010         struct nfs4_sequence_res        seq_res;
1011 };
1012
1013 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1014 struct nfs4_pathname {
1015         unsigned int ncomponents;
1016         struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1017 };
1018
1019 #define NFS4_FS_LOCATION_MAXSERVERS 10
1020 struct nfs4_fs_location {
1021         unsigned int nservers;
1022         struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1023         struct nfs4_pathname rootpath;
1024 };
1025
1026 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1027 struct nfs4_fs_locations {
1028         struct nfs_fattr fattr;
1029         const struct nfs_server *server;
1030         struct nfs4_pathname fs_path;
1031         int nlocations;
1032         struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1033 };
1034
1035 struct nfs4_fs_locations_arg {
1036         const struct nfs_fh *dir_fh;
1037         const struct qstr *name;
1038         struct page *page;
1039         const u32 *bitmask;
1040         struct nfs4_sequence_args       seq_args;
1041 };
1042
1043 struct nfs4_fs_locations_res {
1044         struct nfs4_fs_locations       *fs_locations;
1045         struct nfs4_sequence_res        seq_res;
1046 };
1047
1048 struct nfs4_secinfo_oid {
1049         unsigned int len;
1050         char data[GSS_OID_MAX_LEN];
1051 };
1052
1053 struct nfs4_secinfo_gss {
1054         struct nfs4_secinfo_oid sec_oid4;
1055         unsigned int qop4;
1056         unsigned int service;
1057 };
1058
1059 struct nfs4_secinfo_flavor {
1060         unsigned int            flavor;
1061         struct nfs4_secinfo_gss gss;
1062 };
1063
1064 struct nfs4_secinfo_flavors {
1065         unsigned int num_flavors;
1066         struct nfs4_secinfo_flavor flavors[0];
1067 };
1068
1069 struct nfs4_secinfo_arg {
1070         const struct nfs_fh             *dir_fh;
1071         const struct qstr               *name;
1072         struct nfs4_sequence_args       seq_args;
1073 };
1074
1075 struct nfs4_secinfo_res {
1076         struct nfs4_secinfo_flavors     *flavors;
1077         struct nfs4_sequence_res        seq_res;
1078 };
1079
1080 #endif /* CONFIG_NFS_V4 */
1081
1082 struct nfstime4 {
1083         u64     seconds;
1084         u32     nseconds;
1085 };
1086
1087 #ifdef CONFIG_NFS_V4_1
1088
1089 struct pnfs_commit_bucket {
1090         struct list_head written;
1091         struct list_head committing;
1092         struct pnfs_layout_segment *wlseg;
1093         struct pnfs_layout_segment *clseg;
1094 };
1095
1096 struct pnfs_ds_commit_info {
1097         int nwritten;
1098         int ncommitting;
1099         int nbuckets;
1100         struct pnfs_commit_bucket *buckets;
1101 };
1102
1103 #define NFS4_EXCHANGE_ID_LEN    (48)
1104 struct nfs41_exchange_id_args {
1105         struct nfs_client               *client;
1106         nfs4_verifier                   *verifier;
1107         unsigned int                    id_len;
1108         char                            id[NFS4_EXCHANGE_ID_LEN];
1109         u32                             flags;
1110 };
1111
1112 struct nfs41_server_owner {
1113         uint64_t                        minor_id;
1114         uint32_t                        major_id_sz;
1115         char                            major_id[NFS4_OPAQUE_LIMIT];
1116 };
1117
1118 struct nfs41_server_scope {
1119         uint32_t                        server_scope_sz;
1120         char                            server_scope[NFS4_OPAQUE_LIMIT];
1121 };
1122
1123 struct nfs41_impl_id {
1124         char                            domain[NFS4_OPAQUE_LIMIT + 1];
1125         char                            name[NFS4_OPAQUE_LIMIT + 1];
1126         struct nfstime4                 date;
1127 };
1128
1129 struct nfs41_bind_conn_to_session_res {
1130         struct nfs4_session             *session;
1131         u32                             dir;
1132         bool                            use_conn_in_rdma_mode;
1133 };
1134
1135 struct nfs41_exchange_id_res {
1136         u64                             clientid;
1137         u32                             seqid;
1138         u32                             flags;
1139         struct nfs41_server_owner       *server_owner;
1140         struct nfs41_server_scope       *server_scope;
1141         struct nfs41_impl_id            *impl_id;
1142 };
1143
1144 struct nfs41_create_session_args {
1145         struct nfs_client              *client;
1146         uint32_t                        flags;
1147         uint32_t                        cb_program;
1148         struct nfs4_channel_attrs       fc_attrs;       /* Fore Channel */
1149         struct nfs4_channel_attrs       bc_attrs;       /* Back Channel */
1150 };
1151
1152 struct nfs41_create_session_res {
1153         struct nfs_client              *client;
1154 };
1155
1156 struct nfs41_reclaim_complete_args {
1157         /* In the future extend to include curr_fh for use with migration */
1158         unsigned char                   one_fs:1;
1159         struct nfs4_sequence_args       seq_args;
1160 };
1161
1162 struct nfs41_reclaim_complete_res {
1163         struct nfs4_sequence_res        seq_res;
1164 };
1165
1166 #define SECINFO_STYLE_CURRENT_FH 0
1167 #define SECINFO_STYLE_PARENT 1
1168 struct nfs41_secinfo_no_name_args {
1169         int                             style;
1170         struct nfs4_sequence_args       seq_args;
1171 };
1172
1173 struct nfs41_test_stateid_args {
1174         nfs4_stateid                    *stateid;
1175         struct nfs4_sequence_args       seq_args;
1176 };
1177
1178 struct nfs41_test_stateid_res {
1179         unsigned int                    status;
1180         struct nfs4_sequence_res        seq_res;
1181 };
1182
1183 struct nfs41_free_stateid_args {
1184         nfs4_stateid                    *stateid;
1185         struct nfs4_sequence_args       seq_args;
1186 };
1187
1188 struct nfs41_free_stateid_res {
1189         unsigned int                    status;
1190         struct nfs4_sequence_res        seq_res;
1191 };
1192
1193 #else
1194
1195 struct pnfs_ds_commit_info {
1196 };
1197
1198 #endif /* CONFIG_NFS_V4_1 */
1199
1200 struct nfs_page;
1201
1202 #define NFS_PAGEVEC_SIZE        (8U)
1203
1204 struct nfs_page_array {
1205         struct page             **pagevec;
1206         unsigned int            npages;         /* Max length of pagevec */
1207         struct page             *page_array[NFS_PAGEVEC_SIZE];
1208 };
1209
1210 struct nfs_read_data {
1211         struct nfs_pgio_header  *header;
1212         struct list_head        list;
1213         struct rpc_task         task;
1214         struct nfs_fattr        fattr;  /* fattr storage */
1215         struct nfs_readargs args;
1216         struct nfs_readres  res;
1217         unsigned long           timestamp;      /* For lease renewal */
1218         int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1219         __u64                   mds_offset;
1220         struct nfs_page_array   pages;
1221         struct nfs_client       *ds_clp;        /* pNFS data server */
1222 };
1223
1224 /* used as flag bits in nfs_pgio_header */
1225 enum {
1226         NFS_IOHDR_ERROR = 0,
1227         NFS_IOHDR_EOF,
1228         NFS_IOHDR_REDO,
1229         NFS_IOHDR_NEED_COMMIT,
1230         NFS_IOHDR_NEED_RESCHED,
1231 };
1232
1233 struct nfs_pgio_header {
1234         struct inode            *inode;
1235         struct rpc_cred         *cred;
1236         struct list_head        pages;
1237         struct list_head        rpc_list;
1238         atomic_t                refcnt;
1239         struct nfs_page         *req;
1240         struct nfs_writeverf    *verf;
1241         struct pnfs_layout_segment *lseg;
1242         loff_t                  io_start;
1243         const struct rpc_call_ops *mds_ops;
1244         void (*release) (struct nfs_pgio_header *hdr);
1245         const struct nfs_pgio_completion_ops *completion_ops;
1246         struct nfs_direct_req   *dreq;
1247         spinlock_t              lock;
1248         /* fields protected by lock */
1249         int                     pnfs_error;
1250         int                     error;          /* merge with pnfs_error */
1251         unsigned long           good_bytes;     /* boundary of good data */
1252         unsigned long           flags;
1253 };
1254
1255 struct nfs_read_header {
1256         struct nfs_pgio_header  header;
1257         struct nfs_read_data    rpc_data;
1258 };
1259
1260 struct nfs_write_data {
1261         struct nfs_pgio_header  *header;
1262         struct list_head        list;
1263         struct rpc_task         task;
1264         struct nfs_fattr        fattr;
1265         struct nfs_writeverf    verf;
1266         struct nfs_writeargs    args;           /* argument struct */
1267         struct nfs_writeres     res;            /* result struct */
1268         unsigned long           timestamp;      /* For lease renewal */
1269         int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1270         __u64                   mds_offset;     /* Filelayout dense stripe */
1271         struct nfs_page_array   pages;
1272         struct nfs_client       *ds_clp;        /* pNFS data server */
1273 };
1274
1275 struct nfs_write_header {
1276         struct nfs_pgio_header  header;
1277         struct nfs_write_data   rpc_data;
1278         struct nfs_writeverf    verf;
1279 };
1280
1281 struct nfs_mds_commit_info {
1282         atomic_t rpcs_out;
1283         unsigned long           ncommit;
1284         struct list_head        list;
1285 };
1286
1287 struct nfs_commit_data;
1288 struct nfs_inode;
1289 struct nfs_commit_completion_ops {
1290         void (*error_cleanup) (struct nfs_inode *nfsi);
1291         void (*completion) (struct nfs_commit_data *data);
1292 };
1293
1294 struct nfs_commit_info {
1295         spinlock_t                      *lock;
1296         struct nfs_mds_commit_info      *mds;
1297         struct pnfs_ds_commit_info      *ds;
1298         struct nfs_direct_req           *dreq;  /* O_DIRECT request */
1299         const struct nfs_commit_completion_ops *completion_ops;
1300 };
1301
1302 struct nfs_commit_data {
1303         struct rpc_task         task;
1304         struct inode            *inode;
1305         struct rpc_cred         *cred;
1306         struct nfs_fattr        fattr;
1307         struct nfs_writeverf    verf;
1308         struct list_head        pages;          /* Coalesced requests we wish to flush */
1309         struct list_head        list;           /* lists of struct nfs_write_data */
1310         struct nfs_direct_req   *dreq;          /* O_DIRECT request */
1311         struct nfs_commitargs   args;           /* argument struct */
1312         struct nfs_commitres    res;            /* result struct */
1313         struct nfs_open_context *context;
1314         struct pnfs_layout_segment *lseg;
1315         struct nfs_client       *ds_clp;        /* pNFS data server */
1316         int                     ds_commit_index;
1317         const struct rpc_call_ops *mds_ops;
1318         const struct nfs_commit_completion_ops *completion_ops;
1319         int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1320 };
1321
1322 struct nfs_pgio_completion_ops {
1323         void    (*error_cleanup)(struct list_head *head);
1324         void    (*init_hdr)(struct nfs_pgio_header *hdr);
1325         void    (*completion)(struct nfs_pgio_header *hdr);
1326 };
1327
1328 struct nfs_unlinkdata {
1329         struct hlist_node list;
1330         struct nfs_removeargs args;
1331         struct nfs_removeres res;
1332         struct inode *dir;
1333         struct rpc_cred *cred;
1334         struct nfs_fattr dir_attr;
1335 };
1336
1337 struct nfs_renamedata {
1338         struct nfs_renameargs   args;
1339         struct nfs_renameres    res;
1340         struct rpc_cred         *cred;
1341         struct inode            *old_dir;
1342         struct dentry           *old_dentry;
1343         struct nfs_fattr        old_fattr;
1344         struct inode            *new_dir;
1345         struct dentry           *new_dentry;
1346         struct nfs_fattr        new_fattr;
1347 };
1348
1349 struct nfs_access_entry;
1350 struct nfs_client;
1351 struct rpc_timeout;
1352
1353 /*
1354  * RPC procedure vector for NFSv2/NFSv3 demuxing
1355  */
1356 struct nfs_rpc_ops {
1357         u32     version;                /* Protocol version */
1358         const struct dentry_operations *dentry_ops;
1359         const struct inode_operations *dir_inode_ops;
1360         const struct inode_operations *file_inode_ops;
1361         const struct file_operations *file_ops;
1362
1363         int     (*getroot) (struct nfs_server *, struct nfs_fh *,
1364                             struct nfs_fsinfo *);
1365         struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1366                                       struct nfs_fh *, struct nfs_fattr *);
1367         int     (*getattr) (struct nfs_server *, struct nfs_fh *,
1368                             struct nfs_fattr *);
1369         int     (*setattr) (struct dentry *, struct nfs_fattr *,
1370                             struct iattr *);
1371         int     (*lookup)  (struct inode *, struct qstr *,
1372                             struct nfs_fh *, struct nfs_fattr *);
1373         int     (*access)  (struct inode *, struct nfs_access_entry *);
1374         int     (*readlink)(struct inode *, struct page *, unsigned int,
1375                             unsigned int);
1376         int     (*create)  (struct inode *, struct dentry *,
1377                             struct iattr *, int, struct nfs_open_context *);
1378         int     (*remove)  (struct inode *, struct qstr *);
1379         void    (*unlink_setup)  (struct rpc_message *, struct inode *dir);
1380         void    (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1381         int     (*unlink_done) (struct rpc_task *, struct inode *);
1382         int     (*rename)  (struct inode *, struct qstr *,
1383                             struct inode *, struct qstr *);
1384         void    (*rename_setup)  (struct rpc_message *msg, struct inode *dir);
1385         void    (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1386         int     (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1387         int     (*link)    (struct inode *, struct inode *, struct qstr *);
1388         int     (*symlink) (struct inode *, struct dentry *, struct page *,
1389                             unsigned int, struct iattr *);
1390         int     (*mkdir)   (struct inode *, struct dentry *, struct iattr *);
1391         int     (*rmdir)   (struct inode *, struct qstr *);
1392         int     (*readdir) (struct dentry *, struct rpc_cred *,
1393                             u64, struct page **, unsigned int, int);
1394         int     (*mknod)   (struct inode *, struct dentry *, struct iattr *,
1395                             dev_t);
1396         int     (*statfs)  (struct nfs_server *, struct nfs_fh *,
1397                             struct nfs_fsstat *);
1398         int     (*fsinfo)  (struct nfs_server *, struct nfs_fh *,
1399                             struct nfs_fsinfo *);
1400         int     (*pathconf) (struct nfs_server *, struct nfs_fh *,
1401                              struct nfs_pathconf *);
1402         int     (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1403         int     (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1404         void    (*read_setup)   (struct nfs_read_data *, struct rpc_message *);
1405         void    (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1406         int     (*read_done)  (struct rpc_task *, struct nfs_read_data *);
1407         void    (*write_setup)  (struct nfs_write_data *, struct rpc_message *);
1408         void    (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1409         int     (*write_done)  (struct rpc_task *, struct nfs_write_data *);
1410         void    (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1411         void    (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1412         int     (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1413         int     (*lock)(struct file *, int, struct file_lock *);
1414         int     (*lock_check_bounds)(const struct file_lock *);
1415         void    (*clear_acl_cache)(struct inode *);
1416         void    (*close_context)(struct nfs_open_context *ctx, int);
1417         struct inode * (*open_context) (struct inode *dir,
1418                                 struct nfs_open_context *ctx,
1419                                 int open_flags,
1420                                 struct iattr *iattr);
1421         struct nfs_client *
1422                 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1423                                 const char *, rpc_authflavor_t);
1424 };
1425
1426 /*
1427  *      NFS_CALL(getattr, inode, (fattr));
1428  * into
1429  *      NFS_PROTO(inode)->getattr(fattr);
1430  */
1431 #define NFS_CALL(op, inode, args)       NFS_PROTO(inode)->op args
1432
1433 /*
1434  * Function vectors etc. for the NFS client
1435  */
1436 extern const struct nfs_rpc_ops nfs_v2_clientops;
1437 extern const struct nfs_rpc_ops nfs_v3_clientops;
1438 extern const struct nfs_rpc_ops nfs_v4_clientops;
1439 extern const struct rpc_version nfs_version2;
1440 extern const struct rpc_version nfs_version3;
1441 extern const struct rpc_version nfs_version4;
1442
1443 extern const struct rpc_version nfsacl_version3;
1444 extern const struct rpc_program nfsacl_program;
1445
1446 #endif