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6lowpan: remove initialization of tag value
[linux-2.6/btrfs-unstable.git] / include / linux / nfs_xdr.h
blobb2fb167b2e6d99ed71a1ab6ddeae6c7c3885600a
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 struct nfs4_string {
18 unsigned int len;
19 char *data;
20 };
21
22 struct nfs_fsid {
23 uint64_t major;
24 uint64_t minor;
25 };
26
27 /*
28 * Helper for checking equality between 2 fsids.
29 */
30 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
31 {
32 return a->major == b->major && a->minor == b->minor;
33 }
34
35 struct nfs4_threshold {
36 __u32 bm;
37 __u32 l_type;
38 __u64 rd_sz;
39 __u64 wr_sz;
40 __u64 rd_io_sz;
41 __u64 wr_io_sz;
42 };
43
44 struct nfs_fattr {
45 unsigned int valid; /* which fields are valid */
46 umode_t mode;
47 __u32 nlink;
48 kuid_t uid;
49 kgid_t gid;
50 dev_t rdev;
51 __u64 size;
52 union {
53 struct {
54 __u32 blocksize;
55 __u32 blocks;
56 } nfs2;
57 struct {
58 __u64 used;
59 } nfs3;
60 } du;
61 struct nfs_fsid fsid;
62 __u64 fileid;
63 __u64 mounted_on_fileid;
64 struct timespec atime;
65 struct timespec mtime;
66 struct timespec ctime;
67 __u64 change_attr; /* NFSv4 change attribute */
68 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
69 __u64 pre_size; /* pre_op_attr.size */
70 struct timespec pre_mtime; /* pre_op_attr.mtime */
71 struct timespec pre_ctime; /* pre_op_attr.ctime */
72 unsigned long time_start;
73 unsigned long gencount;
74 struct nfs4_string *owner_name;
75 struct nfs4_string *group_name;
76 struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
77 };
78
79 #define NFS_ATTR_FATTR_TYPE (1U << 0)
80 #define NFS_ATTR_FATTR_MODE (1U << 1)
81 #define NFS_ATTR_FATTR_NLINK (1U << 2)
82 #define NFS_ATTR_FATTR_OWNER (1U << 3)
83 #define NFS_ATTR_FATTR_GROUP (1U << 4)
84 #define NFS_ATTR_FATTR_RDEV (1U << 5)
85 #define NFS_ATTR_FATTR_SIZE (1U << 6)
86 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
87 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
88 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
89 #define NFS_ATTR_FATTR_FSID (1U << 10)
90 #define NFS_ATTR_FATTR_FILEID (1U << 11)
91 #define NFS_ATTR_FATTR_ATIME (1U << 12)
92 #define NFS_ATTR_FATTR_MTIME (1U << 13)
93 #define NFS_ATTR_FATTR_CTIME (1U << 14)
94 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
95 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
96 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
97 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
98 #define NFS_ATTR_FATTR_V4_LOCATIONS (1U << 19)
99 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
100 #define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
101 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
102 #define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
103 #define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
104 #define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25)
105
106 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
107 | NFS_ATTR_FATTR_MODE \
108 | NFS_ATTR_FATTR_NLINK \
109 | NFS_ATTR_FATTR_OWNER \
110 | NFS_ATTR_FATTR_GROUP \
111 | NFS_ATTR_FATTR_RDEV \
112 | NFS_ATTR_FATTR_SIZE \
113 | NFS_ATTR_FATTR_FSID \
114 | NFS_ATTR_FATTR_FILEID \
115 | NFS_ATTR_FATTR_ATIME \
116 | NFS_ATTR_FATTR_MTIME \
117 | NFS_ATTR_FATTR_CTIME \
118 | NFS_ATTR_FATTR_CHANGE)
119 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
120 | NFS_ATTR_FATTR_BLOCKS_USED)
121 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
122 | NFS_ATTR_FATTR_SPACE_USED)
123 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
124 | NFS_ATTR_FATTR_SPACE_USED \
125 | NFS_ATTR_FATTR_V4_SECURITY_LABEL)
126
127 /*
128 * Info on the file system
129 */
130 struct nfs_fsinfo {
131 struct nfs_fattr *fattr; /* Post-op attributes */
132 __u32 rtmax; /* max. read transfer size */
133 __u32 rtpref; /* pref. read transfer size */
134 __u32 rtmult; /* reads should be multiple of this */
135 __u32 wtmax; /* max. write transfer size */
136 __u32 wtpref; /* pref. write transfer size */
137 __u32 wtmult; /* writes should be multiple of this */
138 __u32 dtpref; /* pref. readdir transfer size */
139 __u64 maxfilesize;
140 struct timespec time_delta; /* server time granularity */
141 __u32 lease_time; /* in seconds */
142 __u32 layouttype; /* supported pnfs layout driver */
143 __u32 blksize; /* preferred pnfs io block size */
144 };
145
146 struct nfs_fsstat {
147 struct nfs_fattr *fattr; /* Post-op attributes */
148 __u64 tbytes; /* total size in bytes */
149 __u64 fbytes; /* # of free bytes */
150 __u64 abytes; /* # of bytes available to user */
151 __u64 tfiles; /* # of files */
152 __u64 ffiles; /* # of free files */
153 __u64 afiles; /* # of files available to user */
154 };
155
156 struct nfs2_fsstat {
157 __u32 tsize; /* Server transfer size */
158 __u32 bsize; /* Filesystem block size */
159 __u32 blocks; /* No. of "bsize" blocks on filesystem */
160 __u32 bfree; /* No. of free "bsize" blocks */
161 __u32 bavail; /* No. of available "bsize" blocks */
162 };
163
164 struct nfs_pathconf {
165 struct nfs_fattr *fattr; /* Post-op attributes */
166 __u32 max_link; /* max # of hard links */
167 __u32 max_namelen; /* max name length */
168 };
169
170 struct nfs4_change_info {
171 u32 atomic;
172 u64 before;
173 u64 after;
174 };
175
176 struct nfs_seqid;
177
178 /* nfs41 sessions channel attributes */
179 struct nfs4_channel_attrs {
180 u32 max_rqst_sz;
181 u32 max_resp_sz;
182 u32 max_resp_sz_cached;
183 u32 max_ops;
184 u32 max_reqs;
185 };
186
187 struct nfs4_slot;
188 struct nfs4_sequence_args {
189 struct nfs4_slot *sa_slot;
190 u8 sa_cache_this : 1,
191 sa_privileged : 1;
192 };
193
194 struct nfs4_sequence_res {
195 struct nfs4_slot *sr_slot; /* slot used to send request */
196 unsigned long sr_timestamp;
197 int sr_status; /* sequence operation status */
198 u32 sr_status_flags;
199 u32 sr_highest_slotid;
200 u32 sr_target_highest_slotid;
201 };
202
203 struct nfs4_get_lease_time_args {
204 struct nfs4_sequence_args la_seq_args;
205 };
206
207 struct nfs4_get_lease_time_res {
208 struct nfs4_sequence_res lr_seq_res;
209 struct nfs_fsinfo *lr_fsinfo;
210 };
211
212 #define PNFS_LAYOUT_MAXSIZE 4096
213
214 struct nfs4_layoutdriver_data {
215 struct page **pages;
216 __u32 pglen;
217 __u32 len;
218 };
219
220 struct pnfs_layout_range {
221 u32 iomode;
222 u64 offset;
223 u64 length;
224 };
225
226 struct nfs4_layoutget_args {
227 struct nfs4_sequence_args seq_args;
228 __u32 type;
229 struct pnfs_layout_range range;
230 __u64 minlength;
231 __u32 maxcount;
232 struct inode *inode;
233 struct nfs_open_context *ctx;
234 nfs4_stateid stateid;
235 unsigned long timestamp;
236 struct nfs4_layoutdriver_data layout;
237 };
238
239 struct nfs4_layoutget_res {
240 struct nfs4_sequence_res seq_res;
241 __u32 return_on_close;
242 struct pnfs_layout_range range;
243 __u32 type;
244 nfs4_stateid stateid;
245 struct nfs4_layoutdriver_data *layoutp;
246 };
247
248 struct nfs4_layoutget {
249 struct nfs4_layoutget_args args;
250 struct nfs4_layoutget_res res;
251 struct rpc_cred *cred;
252 gfp_t gfp_flags;
253 };
254
255 struct nfs4_getdevicelist_args {
256 struct nfs4_sequence_args seq_args;
257 const struct nfs_fh *fh;
258 u32 layoutclass;
259 };
260
261 struct nfs4_getdevicelist_res {
262 struct nfs4_sequence_res seq_res;
263 struct pnfs_devicelist *devlist;
264 };
265
266 struct nfs4_getdeviceinfo_args {
267 struct nfs4_sequence_args seq_args;
268 struct pnfs_device *pdev;
269 };
270
271 struct nfs4_getdeviceinfo_res {
272 struct nfs4_sequence_res seq_res;
273 struct pnfs_device *pdev;
274 };
275
276 struct nfs4_layoutcommit_args {
277 struct nfs4_sequence_args seq_args;
278 nfs4_stateid stateid;
279 __u64 lastbytewritten;
280 struct inode *inode;
281 const u32 *bitmask;
282 };
283
284 struct nfs4_layoutcommit_res {
285 struct nfs4_sequence_res seq_res;
286 struct nfs_fattr *fattr;
287 const struct nfs_server *server;
288 int status;
289 };
290
291 struct nfs4_layoutcommit_data {
292 struct rpc_task task;
293 struct nfs_fattr fattr;
294 struct list_head lseg_list;
295 struct rpc_cred *cred;
296 struct nfs4_layoutcommit_args args;
297 struct nfs4_layoutcommit_res res;
298 };
299
300 struct nfs4_layoutreturn_args {
301 struct nfs4_sequence_args seq_args;
302 struct pnfs_layout_hdr *layout;
303 struct inode *inode;
304 nfs4_stateid stateid;
305 __u32 layout_type;
306 };
307
308 struct nfs4_layoutreturn_res {
309 struct nfs4_sequence_res seq_res;
310 u32 lrs_present;
311 nfs4_stateid stateid;
312 };
313
314 struct nfs4_layoutreturn {
315 struct nfs4_layoutreturn_args args;
316 struct nfs4_layoutreturn_res res;
317 struct rpc_cred *cred;
318 struct nfs_client *clp;
319 int rpc_status;
320 };
321
322 struct stateowner_id {
323 __u64 create_time;
324 __u32 uniquifier;
325 };
326
327 /*
328 * Arguments to the open call.
329 */
330 struct nfs_openargs {
331 struct nfs4_sequence_args seq_args;
332 const struct nfs_fh * fh;
333 struct nfs_seqid * seqid;
334 int open_flags;
335 fmode_t fmode;
336 u32 access;
337 __u64 clientid;
338 struct stateowner_id id;
339 union {
340 struct {
341 struct iattr * attrs; /* UNCHECKED, GUARDED */
342 nfs4_verifier verifier; /* EXCLUSIVE */
343 };
344 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
345 fmode_t delegation_type; /* CLAIM_PREVIOUS */
346 } u;
347 const struct qstr * name;
348 const struct nfs_server *server; /* Needed for ID mapping */
349 const u32 * bitmask;
350 const u32 * open_bitmap;
351 __u32 claim;
352 enum createmode4 createmode;
353 const struct nfs4_label *label;
354 };
355
356 struct nfs_openres {
357 struct nfs4_sequence_res seq_res;
358 nfs4_stateid stateid;
359 struct nfs_fh fh;
360 struct nfs4_change_info cinfo;
361 __u32 rflags;
362 struct nfs_fattr * f_attr;
363 struct nfs4_label *f_label;
364 struct nfs_seqid * seqid;
365 const struct nfs_server *server;
366 fmode_t delegation_type;
367 nfs4_stateid delegation;
368 __u32 do_recall;
369 __u64 maxsize;
370 __u32 attrset[NFS4_BITMAP_SIZE];
371 struct nfs4_string *owner;
372 struct nfs4_string *group_owner;
373 __u32 access_request;
374 __u32 access_supported;
375 __u32 access_result;
376 };
377
378 /*
379 * Arguments to the open_confirm call.
380 */
381 struct nfs_open_confirmargs {
382 struct nfs4_sequence_args seq_args;
383 const struct nfs_fh * fh;
384 nfs4_stateid * stateid;
385 struct nfs_seqid * seqid;
386 };
387
388 struct nfs_open_confirmres {
389 struct nfs4_sequence_res seq_res;
390 nfs4_stateid stateid;
391 struct nfs_seqid * seqid;
392 };
393
394 /*
395 * Arguments to the close call.
396 */
397 struct nfs_closeargs {
398 struct nfs4_sequence_args seq_args;
399 struct nfs_fh * fh;
400 nfs4_stateid * stateid;
401 struct nfs_seqid * seqid;
402 fmode_t fmode;
403 const u32 * bitmask;
404 };
405
406 struct nfs_closeres {
407 struct nfs4_sequence_res seq_res;
408 nfs4_stateid stateid;
409 struct nfs_fattr * fattr;
410 struct nfs_seqid * seqid;
411 const struct nfs_server *server;
412 };
413 /*
414 * * Arguments to the lock,lockt, and locku call.
415 * */
416 struct nfs_lowner {
417 __u64 clientid;
418 __u64 id;
419 dev_t s_dev;
420 };
421
422 struct nfs_lock_args {
423 struct nfs4_sequence_args seq_args;
424 struct nfs_fh * fh;
425 struct file_lock * fl;
426 struct nfs_seqid * lock_seqid;
427 nfs4_stateid * lock_stateid;
428 struct nfs_seqid * open_seqid;
429 nfs4_stateid * open_stateid;
430 struct nfs_lowner lock_owner;
431 unsigned char block : 1;
432 unsigned char reclaim : 1;
433 unsigned char new_lock_owner : 1;
434 };
435
436 struct nfs_lock_res {
437 struct nfs4_sequence_res seq_res;
438 nfs4_stateid stateid;
439 struct nfs_seqid * lock_seqid;
440 struct nfs_seqid * open_seqid;
441 };
442
443 struct nfs_locku_args {
444 struct nfs4_sequence_args seq_args;
445 struct nfs_fh * fh;
446 struct file_lock * fl;
447 struct nfs_seqid * seqid;
448 nfs4_stateid * stateid;
449 };
450
451 struct nfs_locku_res {
452 struct nfs4_sequence_res seq_res;
453 nfs4_stateid stateid;
454 struct nfs_seqid * seqid;
455 };
456
457 struct nfs_lockt_args {
458 struct nfs4_sequence_args seq_args;
459 struct nfs_fh * fh;
460 struct file_lock * fl;
461 struct nfs_lowner lock_owner;
462 };
463
464 struct nfs_lockt_res {
465 struct nfs4_sequence_res seq_res;
466 struct file_lock * denied; /* LOCK, LOCKT failed */
467 };
468
469 struct nfs_release_lockowner_args {
470 struct nfs_lowner lock_owner;
471 };
472
473 struct nfs4_delegreturnargs {
474 struct nfs4_sequence_args seq_args;
475 const struct nfs_fh *fhandle;
476 const nfs4_stateid *stateid;
477 const u32 * bitmask;
478 };
479
480 struct nfs4_delegreturnres {
481 struct nfs4_sequence_res seq_res;
482 struct nfs_fattr * fattr;
483 const struct nfs_server *server;
484 };
485
486 /*
487 * Arguments to the read call.
488 */
489 struct nfs_readargs {
490 struct nfs4_sequence_args seq_args;
491 struct nfs_fh * fh;
492 struct nfs_open_context *context;
493 struct nfs_lock_context *lock_context;
494 nfs4_stateid stateid;
495 __u64 offset;
496 __u32 count;
497 unsigned int pgbase;
498 struct page ** pages;
499 };
500
501 struct nfs_readres {
502 struct nfs4_sequence_res seq_res;
503 struct nfs_fattr * fattr;
504 __u32 count;
505 int eof;
506 };
507
508 /*
509 * Arguments to the write call.
510 */
511 struct nfs_writeargs {
512 struct nfs4_sequence_args seq_args;
513 struct nfs_fh * fh;
514 struct nfs_open_context *context;
515 struct nfs_lock_context *lock_context;
516 nfs4_stateid stateid;
517 __u64 offset;
518 __u32 count;
519 enum nfs3_stable_how stable;
520 unsigned int pgbase;
521 struct page ** pages;
522 const u32 * bitmask;
523 };
524
525 struct nfs_write_verifier {
526 char data[8];
527 };
528
529 struct nfs_writeverf {
530 struct nfs_write_verifier verifier;
531 enum nfs3_stable_how committed;
532 };
533
534 struct nfs_writeres {
535 struct nfs4_sequence_res seq_res;
536 struct nfs_fattr * fattr;
537 struct nfs_writeverf * verf;
538 __u32 count;
539 const struct nfs_server *server;
540 };
541
542 /*
543 * Arguments to the commit call.
544 */
545 struct nfs_commitargs {
546 struct nfs4_sequence_args seq_args;
547 struct nfs_fh *fh;
548 __u64 offset;
549 __u32 count;
550 const u32 *bitmask;
551 };
552
553 struct nfs_commitres {
554 struct nfs4_sequence_res seq_res;
555 struct nfs_fattr *fattr;
556 struct nfs_writeverf *verf;
557 const struct nfs_server *server;
558 };
559
560 /*
561 * Common arguments to the unlink call
562 */
563 struct nfs_removeargs {
564 struct nfs4_sequence_args seq_args;
565 const struct nfs_fh *fh;
566 struct qstr name;
567 };
568
569 struct nfs_removeres {
570 struct nfs4_sequence_res seq_res;
571 const struct nfs_server *server;
572 struct nfs_fattr *dir_attr;
573 struct nfs4_change_info cinfo;
574 };
575
576 /*
577 * Common arguments to the rename call
578 */
579 struct nfs_renameargs {
580 struct nfs4_sequence_args seq_args;
581 const struct nfs_fh *old_dir;
582 const struct nfs_fh *new_dir;
583 const struct qstr *old_name;
584 const struct qstr *new_name;
585 };
586
587 struct nfs_renameres {
588 struct nfs4_sequence_res seq_res;
589 const struct nfs_server *server;
590 struct nfs4_change_info old_cinfo;
591 struct nfs_fattr *old_fattr;
592 struct nfs4_change_info new_cinfo;
593 struct nfs_fattr *new_fattr;
594 };
595
596 /* parsed sec= options */
597 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
598 struct nfs_auth_info {
599 unsigned int flavor_len;
600 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
601 };
602
603 /*
604 * Argument struct for decode_entry function
605 */
606 struct nfs_entry {
607 __u64 ino;
608 __u64 cookie,
609 prev_cookie;
610 const char * name;
611 unsigned int len;
612 int eof;
613 struct nfs_fh * fh;
614 struct nfs_fattr * fattr;
615 struct nfs4_label *label;
616 unsigned char d_type;
617 struct nfs_server * server;
618 };
619
620 /*
621 * The following types are for NFSv2 only.
622 */
623 struct nfs_sattrargs {
624 struct nfs_fh * fh;
625 struct iattr * sattr;
626 };
627
628 struct nfs_diropargs {
629 struct nfs_fh * fh;
630 const char * name;
631 unsigned int len;
632 };
633
634 struct nfs_createargs {
635 struct nfs_fh * fh;
636 const char * name;
637 unsigned int len;
638 struct iattr * sattr;
639 };
640
641 struct nfs_setattrargs {
642 struct nfs4_sequence_args seq_args;
643 struct nfs_fh * fh;
644 nfs4_stateid stateid;
645 struct iattr * iap;
646 const struct nfs_server * server; /* Needed for name mapping */
647 const u32 * bitmask;
648 const struct nfs4_label *label;
649 };
650
651 struct nfs_setaclargs {
652 struct nfs4_sequence_args seq_args;
653 struct nfs_fh * fh;
654 size_t acl_len;
655 unsigned int acl_pgbase;
656 struct page ** acl_pages;
657 };
658
659 struct nfs_setaclres {
660 struct nfs4_sequence_res seq_res;
661 };
662
663 struct nfs_getaclargs {
664 struct nfs4_sequence_args seq_args;
665 struct nfs_fh * fh;
666 size_t acl_len;
667 unsigned int acl_pgbase;
668 struct page ** acl_pages;
669 };
670
671 /* getxattr ACL interface flags */
672 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
673 struct nfs_getaclres {
674 struct nfs4_sequence_res seq_res;
675 size_t acl_len;
676 size_t acl_data_offset;
677 int acl_flags;
678 struct page * acl_scratch;
679 };
680
681 struct nfs_setattrres {
682 struct nfs4_sequence_res seq_res;
683 struct nfs_fattr * fattr;
684 struct nfs4_label *label;
685 const struct nfs_server * server;
686 };
687
688 struct nfs_linkargs {
689 struct nfs_fh * fromfh;
690 struct nfs_fh * tofh;
691 const char * toname;
692 unsigned int tolen;
693 };
694
695 struct nfs_symlinkargs {
696 struct nfs_fh * fromfh;
697 const char * fromname;
698 unsigned int fromlen;
699 struct page ** pages;
700 unsigned int pathlen;
701 struct iattr * sattr;
702 };
703
704 struct nfs_readdirargs {
705 struct nfs_fh * fh;
706 __u32 cookie;
707 unsigned int count;
708 struct page ** pages;
709 };
710
711 struct nfs3_getaclargs {
712 struct nfs_fh * fh;
713 int mask;
714 struct page ** pages;
715 };
716
717 struct nfs3_setaclargs {
718 struct inode * inode;
719 int mask;
720 struct posix_acl * acl_access;
721 struct posix_acl * acl_default;
722 size_t len;
723 unsigned int npages;
724 struct page ** pages;
725 };
726
727 struct nfs_diropok {
728 struct nfs_fh * fh;
729 struct nfs_fattr * fattr;
730 };
731
732 struct nfs_readlinkargs {
733 struct nfs_fh * fh;
734 unsigned int pgbase;
735 unsigned int pglen;
736 struct page ** pages;
737 };
738
739 struct nfs3_sattrargs {
740 struct nfs_fh * fh;
741 struct iattr * sattr;
742 unsigned int guard;
743 struct timespec guardtime;
744 };
745
746 struct nfs3_diropargs {
747 struct nfs_fh * fh;
748 const char * name;
749 unsigned int len;
750 };
751
752 struct nfs3_accessargs {
753 struct nfs_fh * fh;
754 __u32 access;
755 };
756
757 struct nfs3_createargs {
758 struct nfs_fh * fh;
759 const char * name;
760 unsigned int len;
761 struct iattr * sattr;
762 enum nfs3_createmode createmode;
763 __be32 verifier[2];
764 };
765
766 struct nfs3_mkdirargs {
767 struct nfs_fh * fh;
768 const char * name;
769 unsigned int len;
770 struct iattr * sattr;
771 };
772
773 struct nfs3_symlinkargs {
774 struct nfs_fh * fromfh;
775 const char * fromname;
776 unsigned int fromlen;
777 struct page ** pages;
778 unsigned int pathlen;
779 struct iattr * sattr;
780 };
781
782 struct nfs3_mknodargs {
783 struct nfs_fh * fh;
784 const char * name;
785 unsigned int len;
786 enum nfs3_ftype type;
787 struct iattr * sattr;
788 dev_t rdev;
789 };
790
791 struct nfs3_linkargs {
792 struct nfs_fh * fromfh;
793 struct nfs_fh * tofh;
794 const char * toname;
795 unsigned int tolen;
796 };
797
798 struct nfs3_readdirargs {
799 struct nfs_fh * fh;
800 __u64 cookie;
801 __be32 verf[2];
802 int plus;
803 unsigned int count;
804 struct page ** pages;
805 };
806
807 struct nfs3_diropres {
808 struct nfs_fattr * dir_attr;
809 struct nfs_fh * fh;
810 struct nfs_fattr * fattr;
811 };
812
813 struct nfs3_accessres {
814 struct nfs_fattr * fattr;
815 __u32 access;
816 };
817
818 struct nfs3_readlinkargs {
819 struct nfs_fh * fh;
820 unsigned int pgbase;
821 unsigned int pglen;
822 struct page ** pages;
823 };
824
825 struct nfs3_linkres {
826 struct nfs_fattr * dir_attr;
827 struct nfs_fattr * fattr;
828 };
829
830 struct nfs3_readdirres {
831 struct nfs_fattr * dir_attr;
832 __be32 * verf;
833 int plus;
834 };
835
836 struct nfs3_getaclres {
837 struct nfs_fattr * fattr;
838 int mask;
839 unsigned int acl_access_count;
840 unsigned int acl_default_count;
841 struct posix_acl * acl_access;
842 struct posix_acl * acl_default;
843 };
844
845 #if IS_ENABLED(CONFIG_NFS_V4)
846
847 typedef u64 clientid4;
848
849 struct nfs4_accessargs {
850 struct nfs4_sequence_args seq_args;
851 const struct nfs_fh * fh;
852 const u32 * bitmask;
853 u32 access;
854 };
855
856 struct nfs4_accessres {
857 struct nfs4_sequence_res seq_res;
858 const struct nfs_server * server;
859 struct nfs_fattr * fattr;
860 u32 supported;
861 u32 access;
862 };
863
864 struct nfs4_create_arg {
865 struct nfs4_sequence_args seq_args;
866 u32 ftype;
867 union {
868 struct {
869 struct page ** pages;
870 unsigned int len;
871 } symlink; /* NF4LNK */
872 struct {
873 u32 specdata1;
874 u32 specdata2;
875 } device; /* NF4BLK, NF4CHR */
876 } u;
877 const struct qstr * name;
878 const struct nfs_server * server;
879 const struct iattr * attrs;
880 const struct nfs_fh * dir_fh;
881 const u32 * bitmask;
882 const struct nfs4_label *label;
883 };
884
885 struct nfs4_create_res {
886 struct nfs4_sequence_res seq_res;
887 const struct nfs_server * server;
888 struct nfs_fh * fh;
889 struct nfs_fattr * fattr;
890 struct nfs4_label *label;
891 struct nfs4_change_info dir_cinfo;
892 };
893
894 struct nfs4_fsinfo_arg {
895 struct nfs4_sequence_args seq_args;
896 const struct nfs_fh * fh;
897 const u32 * bitmask;
898 };
899
900 struct nfs4_fsinfo_res {
901 struct nfs4_sequence_res seq_res;
902 struct nfs_fsinfo *fsinfo;
903 };
904
905 struct nfs4_getattr_arg {
906 struct nfs4_sequence_args seq_args;
907 const struct nfs_fh * fh;
908 const u32 * bitmask;
909 };
910
911 struct nfs4_getattr_res {
912 struct nfs4_sequence_res seq_res;
913 const struct nfs_server * server;
914 struct nfs_fattr * fattr;
915 struct nfs4_label *label;
916 };
917
918 struct nfs4_link_arg {
919 struct nfs4_sequence_args seq_args;
920 const struct nfs_fh * fh;
921 const struct nfs_fh * dir_fh;
922 const struct qstr * name;
923 const u32 * bitmask;
924 };
925
926 struct nfs4_link_res {
927 struct nfs4_sequence_res seq_res;
928 const struct nfs_server * server;
929 struct nfs_fattr * fattr;
930 struct nfs4_label *label;
931 struct nfs4_change_info cinfo;
932 struct nfs_fattr * dir_attr;
933 };
934
935
936 struct nfs4_lookup_arg {
937 struct nfs4_sequence_args seq_args;
938 const struct nfs_fh * dir_fh;
939 const struct qstr * name;
940 const u32 * bitmask;
941 };
942
943 struct nfs4_lookup_res {
944 struct nfs4_sequence_res seq_res;
945 const struct nfs_server * server;
946 struct nfs_fattr * fattr;
947 struct nfs_fh * fh;
948 struct nfs4_label *label;
949 };
950
951 struct nfs4_lookup_root_arg {
952 struct nfs4_sequence_args seq_args;
953 const u32 * bitmask;
954 };
955
956 struct nfs4_pathconf_arg {
957 struct nfs4_sequence_args seq_args;
958 const struct nfs_fh * fh;
959 const u32 * bitmask;
960 };
961
962 struct nfs4_pathconf_res {
963 struct nfs4_sequence_res seq_res;
964 struct nfs_pathconf *pathconf;
965 };
966
967 struct nfs4_readdir_arg {
968 struct nfs4_sequence_args seq_args;
969 const struct nfs_fh * fh;
970 u64 cookie;
971 nfs4_verifier verifier;
972 u32 count;
973 struct page ** pages; /* zero-copy data */
974 unsigned int pgbase; /* zero-copy data */
975 const u32 * bitmask;
976 int plus;
977 };
978
979 struct nfs4_readdir_res {
980 struct nfs4_sequence_res seq_res;
981 nfs4_verifier verifier;
982 unsigned int pgbase;
983 };
984
985 struct nfs4_readlink {
986 struct nfs4_sequence_args seq_args;
987 const struct nfs_fh * fh;
988 unsigned int pgbase;
989 unsigned int pglen; /* zero-copy data */
990 struct page ** pages; /* zero-copy data */
991 };
992
993 struct nfs4_readlink_res {
994 struct nfs4_sequence_res seq_res;
995 };
996
997 #define NFS4_SETCLIENTID_NAMELEN (127)
998 struct nfs4_setclientid {
999 const nfs4_verifier * sc_verifier;
1000 unsigned int sc_name_len;
1001 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
1002 u32 sc_prog;
1003 unsigned int sc_netid_len;
1004 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
1005 unsigned int sc_uaddr_len;
1006 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
1007 u32 sc_cb_ident;
1008 };
1009
1010 struct nfs4_setclientid_res {
1011 u64 clientid;
1012 nfs4_verifier confirm;
1013 };
1014
1015 struct nfs4_statfs_arg {
1016 struct nfs4_sequence_args seq_args;
1017 const struct nfs_fh * fh;
1018 const u32 * bitmask;
1019 };
1020
1021 struct nfs4_statfs_res {
1022 struct nfs4_sequence_res seq_res;
1023 struct nfs_fsstat *fsstat;
1024 };
1025
1026 struct nfs4_server_caps_arg {
1027 struct nfs4_sequence_args seq_args;
1028 struct nfs_fh *fhandle;
1029 };
1030
1031 struct nfs4_server_caps_res {
1032 struct nfs4_sequence_res seq_res;
1033 u32 attr_bitmask[3];
1034 u32 acl_bitmask;
1035 u32 has_links;
1036 u32 has_symlinks;
1037 u32 fh_expire_type;
1038 };
1039
1040 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1041 struct nfs4_pathname {
1042 unsigned int ncomponents;
1043 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1044 };
1045
1046 #define NFS4_FS_LOCATION_MAXSERVERS 10
1047 struct nfs4_fs_location {
1048 unsigned int nservers;
1049 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1050 struct nfs4_pathname rootpath;
1051 };
1052
1053 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1054 struct nfs4_fs_locations {
1055 struct nfs_fattr fattr;
1056 const struct nfs_server *server;
1057 struct nfs4_pathname fs_path;
1058 int nlocations;
1059 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1060 };
1061
1062 struct nfs4_fs_locations_arg {
1063 struct nfs4_sequence_args seq_args;
1064 const struct nfs_fh *dir_fh;
1065 const struct nfs_fh *fh;
1066 const struct qstr *name;
1067 struct page *page;
1068 const u32 *bitmask;
1069 clientid4 clientid;
1070 unsigned char migration:1, renew:1;
1071 };
1072
1073 struct nfs4_fs_locations_res {
1074 struct nfs4_sequence_res seq_res;
1075 struct nfs4_fs_locations *fs_locations;
1076 unsigned char migration:1, renew:1;
1077 };
1078
1079 struct nfs4_secinfo4 {
1080 u32 flavor;
1081 struct rpcsec_gss_info flavor_info;
1082 };
1083
1084 struct nfs4_secinfo_flavors {
1085 unsigned int num_flavors;
1086 struct nfs4_secinfo4 flavors[0];
1087 };
1088
1089 struct nfs4_secinfo_arg {
1090 struct nfs4_sequence_args seq_args;
1091 const struct nfs_fh *dir_fh;
1092 const struct qstr *name;
1093 };
1094
1095 struct nfs4_secinfo_res {
1096 struct nfs4_sequence_res seq_res;
1097 struct nfs4_secinfo_flavors *flavors;
1098 };
1099
1100 struct nfs4_fsid_present_arg {
1101 struct nfs4_sequence_args seq_args;
1102 const struct nfs_fh *fh;
1103 clientid4 clientid;
1104 unsigned char renew:1;
1105 };
1106
1107 struct nfs4_fsid_present_res {
1108 struct nfs4_sequence_res seq_res;
1109 struct nfs_fh *fh;
1110 unsigned char renew:1;
1111 };
1112
1113 #endif /* CONFIG_NFS_V4 */
1114
1115 struct nfstime4 {
1116 u64 seconds;
1117 u32 nseconds;
1118 };
1119
1120 #ifdef CONFIG_NFS_V4_1
1121
1122 struct pnfs_commit_bucket {
1123 struct list_head written;
1124 struct list_head committing;
1125 struct pnfs_layout_segment *wlseg;
1126 struct pnfs_layout_segment *clseg;
1127 };
1128
1129 struct pnfs_ds_commit_info {
1130 int nwritten;
1131 int ncommitting;
1132 int nbuckets;
1133 struct pnfs_commit_bucket *buckets;
1134 };
1135
1136 #define NFS4_OP_MAP_NUM_LONGS \
1137 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1138 #define NFS4_OP_MAP_NUM_WORDS \
1139 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1140 struct nfs4_op_map {
1141 union {
1142 unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
1143 u32 words[NFS4_OP_MAP_NUM_WORDS];
1144 } u;
1145 };
1146
1147 struct nfs41_state_protection {
1148 u32 how;
1149 struct nfs4_op_map enforce;
1150 struct nfs4_op_map allow;
1151 };
1152
1153 #define NFS4_EXCHANGE_ID_LEN (48)
1154 struct nfs41_exchange_id_args {
1155 struct nfs_client *client;
1156 nfs4_verifier *verifier;
1157 unsigned int id_len;
1158 char id[NFS4_EXCHANGE_ID_LEN];
1159 u32 flags;
1160 struct nfs41_state_protection state_protect;
1161 };
1162
1163 struct nfs41_server_owner {
1164 uint64_t minor_id;
1165 uint32_t major_id_sz;
1166 char major_id[NFS4_OPAQUE_LIMIT];
1167 };
1168
1169 struct nfs41_server_scope {
1170 uint32_t server_scope_sz;
1171 char server_scope[NFS4_OPAQUE_LIMIT];
1172 };
1173
1174 struct nfs41_impl_id {
1175 char domain[NFS4_OPAQUE_LIMIT + 1];
1176 char name[NFS4_OPAQUE_LIMIT + 1];
1177 struct nfstime4 date;
1178 };
1179
1180 struct nfs41_bind_conn_to_session_res {
1181 struct nfs4_session *session;
1182 u32 dir;
1183 bool use_conn_in_rdma_mode;
1184 };
1185
1186 struct nfs41_exchange_id_res {
1187 u64 clientid;
1188 u32 seqid;
1189 u32 flags;
1190 struct nfs41_server_owner *server_owner;
1191 struct nfs41_server_scope *server_scope;
1192 struct nfs41_impl_id *impl_id;
1193 struct nfs41_state_protection state_protect;
1194 };
1195
1196 struct nfs41_create_session_args {
1197 struct nfs_client *client;
1198 uint32_t flags;
1199 uint32_t cb_program;
1200 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1201 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1202 };
1203
1204 struct nfs41_create_session_res {
1205 struct nfs_client *client;
1206 };
1207
1208 struct nfs41_reclaim_complete_args {
1209 struct nfs4_sequence_args seq_args;
1210 /* In the future extend to include curr_fh for use with migration */
1211 unsigned char one_fs:1;
1212 };
1213
1214 struct nfs41_reclaim_complete_res {
1215 struct nfs4_sequence_res seq_res;
1216 };
1217
1218 #define SECINFO_STYLE_CURRENT_FH 0
1219 #define SECINFO_STYLE_PARENT 1
1220 struct nfs41_secinfo_no_name_args {
1221 struct nfs4_sequence_args seq_args;
1222 int style;
1223 };
1224
1225 struct nfs41_test_stateid_args {
1226 struct nfs4_sequence_args seq_args;
1227 nfs4_stateid *stateid;
1228 };
1229
1230 struct nfs41_test_stateid_res {
1231 struct nfs4_sequence_res seq_res;
1232 unsigned int status;
1233 };
1234
1235 struct nfs41_free_stateid_args {
1236 struct nfs4_sequence_args seq_args;
1237 nfs4_stateid stateid;
1238 };
1239
1240 struct nfs41_free_stateid_res {
1241 struct nfs4_sequence_res seq_res;
1242 unsigned int status;
1243 };
1244
1245 #else
1246
1247 struct pnfs_ds_commit_info {
1248 };
1249
1250 #endif /* CONFIG_NFS_V4_1 */
1251
1252 struct nfs_page;
1253
1254 #define NFS_PAGEVEC_SIZE (8U)
1255
1256 struct nfs_page_array {
1257 struct page **pagevec;
1258 unsigned int npages; /* Max length of pagevec */
1259 struct page *page_array[NFS_PAGEVEC_SIZE];
1260 };
1261
1262 struct nfs_read_data {
1263 struct nfs_pgio_header *header;
1264 struct list_head list;
1265 struct rpc_task task;
1266 struct nfs_fattr fattr; /* fattr storage */
1267 struct nfs_readargs args;
1268 struct nfs_readres res;
1269 unsigned long timestamp; /* For lease renewal */
1270 int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
1271 __u64 mds_offset;
1272 struct nfs_page_array pages;
1273 struct nfs_client *ds_clp; /* pNFS data server */
1274 };
1275
1276 /* used as flag bits in nfs_pgio_header */
1277 enum {
1278 NFS_IOHDR_ERROR = 0,
1279 NFS_IOHDR_EOF,
1280 NFS_IOHDR_REDO,
1281 NFS_IOHDR_NEED_COMMIT,
1282 NFS_IOHDR_NEED_RESCHED,
1283 };
1284
1285 struct nfs_pgio_header {
1286 struct inode *inode;
1287 struct rpc_cred *cred;
1288 struct list_head pages;
1289 struct list_head rpc_list;
1290 atomic_t refcnt;
1291 struct nfs_page *req;
1292 struct nfs_writeverf *verf;
1293 struct pnfs_layout_segment *lseg;
1294 loff_t io_start;
1295 const struct rpc_call_ops *mds_ops;
1296 void (*release) (struct nfs_pgio_header *hdr);
1297 const struct nfs_pgio_completion_ops *completion_ops;
1298 struct nfs_direct_req *dreq;
1299 void *layout_private;
1300 spinlock_t lock;
1301 /* fields protected by lock */
1302 int pnfs_error;
1303 int error; /* merge with pnfs_error */
1304 unsigned long good_bytes; /* boundary of good data */
1305 unsigned long flags;
1306 };
1307
1308 struct nfs_read_header {
1309 struct nfs_pgio_header header;
1310 struct nfs_read_data rpc_data;
1311 };
1312
1313 struct nfs_write_data {
1314 struct nfs_pgio_header *header;
1315 struct list_head list;
1316 struct rpc_task task;
1317 struct nfs_fattr fattr;
1318 struct nfs_writeverf verf;
1319 struct nfs_writeargs args; /* argument struct */
1320 struct nfs_writeres res; /* result struct */
1321 unsigned long timestamp; /* For lease renewal */
1322 int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
1323 __u64 mds_offset; /* Filelayout dense stripe */
1324 struct nfs_page_array pages;
1325 struct nfs_client *ds_clp; /* pNFS data server */
1326 };
1327
1328 struct nfs_write_header {
1329 struct nfs_pgio_header header;
1330 struct nfs_write_data rpc_data;
1331 struct nfs_writeverf verf;
1332 };
1333
1334 struct nfs_mds_commit_info {
1335 atomic_t rpcs_out;
1336 unsigned long ncommit;
1337 struct list_head list;
1338 };
1339
1340 struct nfs_commit_data;
1341 struct nfs_inode;
1342 struct nfs_commit_completion_ops {
1343 void (*error_cleanup) (struct nfs_inode *nfsi);
1344 void (*completion) (struct nfs_commit_data *data);
1345 };
1346
1347 struct nfs_commit_info {
1348 spinlock_t *lock;
1349 struct nfs_mds_commit_info *mds;
1350 struct pnfs_ds_commit_info *ds;
1351 struct nfs_direct_req *dreq; /* O_DIRECT request */
1352 const struct nfs_commit_completion_ops *completion_ops;
1353 };
1354
1355 struct nfs_commit_data {
1356 struct rpc_task task;
1357 struct inode *inode;
1358 struct rpc_cred *cred;
1359 struct nfs_fattr fattr;
1360 struct nfs_writeverf verf;
1361 struct list_head pages; /* Coalesced requests we wish to flush */
1362 struct list_head list; /* lists of struct nfs_write_data */
1363 struct nfs_direct_req *dreq; /* O_DIRECT request */
1364 struct nfs_commitargs args; /* argument struct */
1365 struct nfs_commitres res; /* result struct */
1366 struct nfs_open_context *context;
1367 struct pnfs_layout_segment *lseg;
1368 struct nfs_client *ds_clp; /* pNFS data server */
1369 int ds_commit_index;
1370 const struct rpc_call_ops *mds_ops;
1371 const struct nfs_commit_completion_ops *completion_ops;
1372 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1373 };
1374
1375 struct nfs_pgio_completion_ops {
1376 void (*error_cleanup)(struct list_head *head);
1377 void (*init_hdr)(struct nfs_pgio_header *hdr);
1378 void (*completion)(struct nfs_pgio_header *hdr);
1379 };
1380
1381 struct nfs_unlinkdata {
1382 struct hlist_node list;
1383 struct nfs_removeargs args;
1384 struct nfs_removeres res;
1385 struct inode *dir;
1386 struct rpc_cred *cred;
1387 struct nfs_fattr dir_attr;
1388 };
1389
1390 struct nfs_renamedata {
1391 struct nfs_renameargs args;
1392 struct nfs_renameres res;
1393 struct rpc_cred *cred;
1394 struct inode *old_dir;
1395 struct dentry *old_dentry;
1396 struct nfs_fattr old_fattr;
1397 struct inode *new_dir;
1398 struct dentry *new_dentry;
1399 struct nfs_fattr new_fattr;
1400 };
1401
1402 struct nfs_access_entry;
1403 struct nfs_client;
1404 struct rpc_timeout;
1405 struct nfs_subversion;
1406 struct nfs_mount_info;
1407 struct nfs_client_initdata;
1408 struct nfs_pageio_descriptor;
1409
1410 /*
1411 * RPC procedure vector for NFSv2/NFSv3 demuxing
1412 */
1413 struct nfs_rpc_ops {
1414 u32 version; /* Protocol version */
1415 const struct dentry_operations *dentry_ops;
1416 const struct inode_operations *dir_inode_ops;
1417 const struct inode_operations *file_inode_ops;
1418 const struct file_operations *file_ops;
1419
1420 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1421 struct nfs_fsinfo *);
1422 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1423 struct nfs_fh *, struct nfs_fattr *);
1424 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1425 struct nfs_subversion *);
1426 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1427 struct nfs_fattr *, struct nfs4_label *);
1428 int (*setattr) (struct dentry *, struct nfs_fattr *,
1429 struct iattr *);
1430 int (*lookup) (struct inode *, struct qstr *,
1431 struct nfs_fh *, struct nfs_fattr *,
1432 struct nfs4_label *);
1433 int (*access) (struct inode *, struct nfs_access_entry *);
1434 int (*readlink)(struct inode *, struct page *, unsigned int,
1435 unsigned int);
1436 int (*create) (struct inode *, struct dentry *,
1437 struct iattr *, int);
1438 int (*remove) (struct inode *, struct qstr *);
1439 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1440 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1441 int (*unlink_done) (struct rpc_task *, struct inode *);
1442 int (*rename) (struct inode *, struct qstr *,
1443 struct inode *, struct qstr *);
1444 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1445 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1446 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1447 int (*link) (struct inode *, struct inode *, struct qstr *);
1448 int (*symlink) (struct inode *, struct dentry *, struct page *,
1449 unsigned int, struct iattr *);
1450 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1451 int (*rmdir) (struct inode *, struct qstr *);
1452 int (*readdir) (struct dentry *, struct rpc_cred *,
1453 u64, struct page **, unsigned int, int);
1454 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1455 dev_t);
1456 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1457 struct nfs_fsstat *);
1458 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1459 struct nfs_fsinfo *);
1460 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1461 struct nfs_pathconf *);
1462 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1463 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1464 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
1465 void (*read_pageio_init)(struct nfs_pageio_descriptor *, struct inode *,
1466 const struct nfs_pgio_completion_ops *);
1467 int (*read_rpc_prepare)(struct rpc_task *, struct nfs_read_data *);
1468 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
1469 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
1470 void (*write_pageio_init)(struct nfs_pageio_descriptor *, struct inode *, int,
1471 const struct nfs_pgio_completion_ops *);
1472 int (*write_rpc_prepare)(struct rpc_task *, struct nfs_write_data *);
1473 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
1474 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1475 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1476 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1477 int (*lock)(struct file *, int, struct file_lock *);
1478 int (*lock_check_bounds)(const struct file_lock *);
1479 void (*clear_acl_cache)(struct inode *);
1480 void (*close_context)(struct nfs_open_context *ctx, int);
1481 struct inode * (*open_context) (struct inode *dir,
1482 struct nfs_open_context *ctx,
1483 int open_flags,
1484 struct iattr *iattr,
1485 int *);
1486 int (*have_delegation)(struct inode *, fmode_t);
1487 int (*return_delegation)(struct inode *);
1488 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1489 struct nfs_client *
1490 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1491 const char *);
1492 void (*free_client) (struct nfs_client *);
1493 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1494 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1495 struct nfs_fattr *, rpc_authflavor_t);
1496 };
1497
1498 /*
1499 * NFS_CALL(getattr, inode, (fattr));
1500 * into
1501 * NFS_PROTO(inode)->getattr(fattr);
1502 */
1503 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1504
1505 /*
1506 * Function vectors etc. for the NFS client
1507 */
1508 extern const struct nfs_rpc_ops nfs_v2_clientops;
1509 extern const struct nfs_rpc_ops nfs_v3_clientops;
1510 extern const struct nfs_rpc_ops nfs_v4_clientops;
1511 extern const struct rpc_version nfs_version2;
1512 extern const struct rpc_version nfs_version3;
1513 extern const struct rpc_version nfs_version4;
1514
1515 extern const struct rpc_version nfsacl_version3;
1516 extern const struct rpc_program nfsacl_program;
1517
1518 #endif
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