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nfs41: pass iomode through layoutreturn args
[linux-2.6/btrfs-unstable.git] / include / linux / nfs_xdr.h
blob4fd7793d45d16f403ba7ea1c514d383bf075bcb5
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_getdeviceinfo_args {
256 struct nfs4_sequence_args seq_args;
257 struct pnfs_device *pdev;
258 };
259
260 struct nfs4_getdeviceinfo_res {
261 struct nfs4_sequence_res seq_res;
262 struct pnfs_device *pdev;
263 };
264
265 struct nfs4_layoutcommit_args {
266 struct nfs4_sequence_args seq_args;
267 nfs4_stateid stateid;
268 __u64 lastbytewritten;
269 struct inode *inode;
270 const u32 *bitmask;
271 size_t layoutupdate_len;
272 struct page *layoutupdate_page;
273 struct page **layoutupdate_pages;
274 };
275
276 struct nfs4_layoutcommit_res {
277 struct nfs4_sequence_res seq_res;
278 struct nfs_fattr *fattr;
279 const struct nfs_server *server;
280 int status;
281 };
282
283 struct nfs4_layoutcommit_data {
284 struct rpc_task task;
285 struct nfs_fattr fattr;
286 struct list_head lseg_list;
287 struct rpc_cred *cred;
288 struct nfs4_layoutcommit_args args;
289 struct nfs4_layoutcommit_res res;
290 };
291
292 struct nfs4_layoutreturn_args {
293 struct nfs4_sequence_args seq_args;
294 struct pnfs_layout_hdr *layout;
295 struct inode *inode;
296 enum pnfs_iomode iomode;
297 nfs4_stateid stateid;
298 __u32 layout_type;
299 };
300
301 struct nfs4_layoutreturn_res {
302 struct nfs4_sequence_res seq_res;
303 u32 lrs_present;
304 nfs4_stateid stateid;
305 };
306
307 struct nfs4_layoutreturn {
308 struct nfs4_layoutreturn_args args;
309 struct nfs4_layoutreturn_res res;
310 struct rpc_cred *cred;
311 struct nfs_client *clp;
312 int rpc_status;
313 };
314
315 struct stateowner_id {
316 __u64 create_time;
317 __u32 uniquifier;
318 };
319
320 /*
321 * Arguments to the open call.
322 */
323 struct nfs_openargs {
324 struct nfs4_sequence_args seq_args;
325 const struct nfs_fh * fh;
326 struct nfs_seqid * seqid;
327 int open_flags;
328 fmode_t fmode;
329 u32 access;
330 __u64 clientid;
331 struct stateowner_id id;
332 union {
333 struct {
334 struct iattr * attrs; /* UNCHECKED, GUARDED */
335 nfs4_verifier verifier; /* EXCLUSIVE */
336 };
337 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
338 fmode_t delegation_type; /* CLAIM_PREVIOUS */
339 } u;
340 const struct qstr * name;
341 const struct nfs_server *server; /* Needed for ID mapping */
342 const u32 * bitmask;
343 const u32 * open_bitmap;
344 __u32 claim;
345 enum createmode4 createmode;
346 const struct nfs4_label *label;
347 };
348
349 struct nfs_openres {
350 struct nfs4_sequence_res seq_res;
351 nfs4_stateid stateid;
352 struct nfs_fh fh;
353 struct nfs4_change_info cinfo;
354 __u32 rflags;
355 struct nfs_fattr * f_attr;
356 struct nfs4_label *f_label;
357 struct nfs_seqid * seqid;
358 const struct nfs_server *server;
359 fmode_t delegation_type;
360 nfs4_stateid delegation;
361 __u32 do_recall;
362 __u64 maxsize;
363 __u32 attrset[NFS4_BITMAP_SIZE];
364 struct nfs4_string *owner;
365 struct nfs4_string *group_owner;
366 __u32 access_request;
367 __u32 access_supported;
368 __u32 access_result;
369 };
370
371 /*
372 * Arguments to the open_confirm call.
373 */
374 struct nfs_open_confirmargs {
375 struct nfs4_sequence_args seq_args;
376 const struct nfs_fh * fh;
377 nfs4_stateid * stateid;
378 struct nfs_seqid * seqid;
379 };
380
381 struct nfs_open_confirmres {
382 struct nfs4_sequence_res seq_res;
383 nfs4_stateid stateid;
384 struct nfs_seqid * seqid;
385 };
386
387 /*
388 * Arguments to the close call.
389 */
390 struct nfs_closeargs {
391 struct nfs4_sequence_args seq_args;
392 struct nfs_fh * fh;
393 nfs4_stateid * stateid;
394 struct nfs_seqid * seqid;
395 fmode_t fmode;
396 const u32 * bitmask;
397 };
398
399 struct nfs_closeres {
400 struct nfs4_sequence_res seq_res;
401 nfs4_stateid stateid;
402 struct nfs_fattr * fattr;
403 struct nfs_seqid * seqid;
404 const struct nfs_server *server;
405 };
406 /*
407 * * Arguments to the lock,lockt, and locku call.
408 * */
409 struct nfs_lowner {
410 __u64 clientid;
411 __u64 id;
412 dev_t s_dev;
413 };
414
415 struct nfs_lock_args {
416 struct nfs4_sequence_args seq_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 };
428
429 struct nfs_lock_res {
430 struct nfs4_sequence_res seq_res;
431 nfs4_stateid stateid;
432 struct nfs_seqid * lock_seqid;
433 struct nfs_seqid * open_seqid;
434 };
435
436 struct nfs_locku_args {
437 struct nfs4_sequence_args seq_args;
438 struct nfs_fh * fh;
439 struct file_lock * fl;
440 struct nfs_seqid * seqid;
441 nfs4_stateid * stateid;
442 };
443
444 struct nfs_locku_res {
445 struct nfs4_sequence_res seq_res;
446 nfs4_stateid stateid;
447 struct nfs_seqid * seqid;
448 };
449
450 struct nfs_lockt_args {
451 struct nfs4_sequence_args seq_args;
452 struct nfs_fh * fh;
453 struct file_lock * fl;
454 struct nfs_lowner lock_owner;
455 };
456
457 struct nfs_lockt_res {
458 struct nfs4_sequence_res seq_res;
459 struct file_lock * denied; /* LOCK, LOCKT failed */
460 };
461
462 struct nfs_release_lockowner_args {
463 struct nfs4_sequence_args seq_args;
464 struct nfs_lowner lock_owner;
465 };
466
467 struct nfs_release_lockowner_res {
468 struct nfs4_sequence_res seq_res;
469 };
470
471 struct nfs4_delegreturnargs {
472 struct nfs4_sequence_args seq_args;
473 const struct nfs_fh *fhandle;
474 const nfs4_stateid *stateid;
475 const u32 * bitmask;
476 };
477
478 struct nfs4_delegreturnres {
479 struct nfs4_sequence_res seq_res;
480 struct nfs_fattr * fattr;
481 const struct nfs_server *server;
482 };
483
484 /*
485 * Arguments to the write call.
486 */
487 struct nfs_write_verifier {
488 char data[8];
489 };
490
491 struct nfs_writeverf {
492 struct nfs_write_verifier verifier;
493 enum nfs3_stable_how committed;
494 };
495
496 /*
497 * Arguments shared by the read and write call.
498 */
499 struct nfs_pgio_args {
500 struct nfs4_sequence_args seq_args;
501 struct nfs_fh * fh;
502 struct nfs_open_context *context;
503 struct nfs_lock_context *lock_context;
504 nfs4_stateid stateid;
505 __u64 offset;
506 __u32 count;
507 unsigned int pgbase;
508 struct page ** pages;
509 const u32 * bitmask; /* used by write */
510 enum nfs3_stable_how stable; /* used by write */
511 };
512
513 struct nfs_pgio_res {
514 struct nfs4_sequence_res seq_res;
515 struct nfs_fattr * fattr;
516 __u32 count;
517 __u32 op_status;
518 int eof; /* used by read */
519 struct nfs_writeverf * verf; /* used by write */
520 const struct nfs_server *server; /* used by write */
521
522 };
523
524 /*
525 * Arguments to the commit call.
526 */
527 struct nfs_commitargs {
528 struct nfs4_sequence_args seq_args;
529 struct nfs_fh *fh;
530 __u64 offset;
531 __u32 count;
532 const u32 *bitmask;
533 };
534
535 struct nfs_commitres {
536 struct nfs4_sequence_res seq_res;
537 __u32 op_status;
538 struct nfs_fattr *fattr;
539 struct nfs_writeverf *verf;
540 const struct nfs_server *server;
541 };
542
543 /*
544 * Common arguments to the unlink call
545 */
546 struct nfs_removeargs {
547 struct nfs4_sequence_args seq_args;
548 const struct nfs_fh *fh;
549 struct qstr name;
550 };
551
552 struct nfs_removeres {
553 struct nfs4_sequence_res seq_res;
554 const struct nfs_server *server;
555 struct nfs_fattr *dir_attr;
556 struct nfs4_change_info cinfo;
557 };
558
559 /*
560 * Common arguments to the rename call
561 */
562 struct nfs_renameargs {
563 struct nfs4_sequence_args seq_args;
564 const struct nfs_fh *old_dir;
565 const struct nfs_fh *new_dir;
566 const struct qstr *old_name;
567 const struct qstr *new_name;
568 };
569
570 struct nfs_renameres {
571 struct nfs4_sequence_res seq_res;
572 const struct nfs_server *server;
573 struct nfs4_change_info old_cinfo;
574 struct nfs_fattr *old_fattr;
575 struct nfs4_change_info new_cinfo;
576 struct nfs_fattr *new_fattr;
577 };
578
579 /* parsed sec= options */
580 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
581 struct nfs_auth_info {
582 unsigned int flavor_len;
583 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
584 };
585
586 /*
587 * Argument struct for decode_entry function
588 */
589 struct nfs_entry {
590 __u64 ino;
591 __u64 cookie,
592 prev_cookie;
593 const char * name;
594 unsigned int len;
595 int eof;
596 struct nfs_fh * fh;
597 struct nfs_fattr * fattr;
598 struct nfs4_label *label;
599 unsigned char d_type;
600 struct nfs_server * server;
601 };
602
603 /*
604 * The following types are for NFSv2 only.
605 */
606 struct nfs_sattrargs {
607 struct nfs_fh * fh;
608 struct iattr * sattr;
609 };
610
611 struct nfs_diropargs {
612 struct nfs_fh * fh;
613 const char * name;
614 unsigned int len;
615 };
616
617 struct nfs_createargs {
618 struct nfs_fh * fh;
619 const char * name;
620 unsigned int len;
621 struct iattr * sattr;
622 };
623
624 struct nfs_setattrargs {
625 struct nfs4_sequence_args seq_args;
626 struct nfs_fh * fh;
627 nfs4_stateid stateid;
628 struct iattr * iap;
629 const struct nfs_server * server; /* Needed for name mapping */
630 const u32 * bitmask;
631 const struct nfs4_label *label;
632 };
633
634 struct nfs_setaclargs {
635 struct nfs4_sequence_args seq_args;
636 struct nfs_fh * fh;
637 size_t acl_len;
638 unsigned int acl_pgbase;
639 struct page ** acl_pages;
640 };
641
642 struct nfs_setaclres {
643 struct nfs4_sequence_res seq_res;
644 };
645
646 struct nfs_getaclargs {
647 struct nfs4_sequence_args seq_args;
648 struct nfs_fh * fh;
649 size_t acl_len;
650 unsigned int acl_pgbase;
651 struct page ** acl_pages;
652 };
653
654 /* getxattr ACL interface flags */
655 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
656 struct nfs_getaclres {
657 struct nfs4_sequence_res seq_res;
658 size_t acl_len;
659 size_t acl_data_offset;
660 int acl_flags;
661 struct page * acl_scratch;
662 };
663
664 struct nfs_setattrres {
665 struct nfs4_sequence_res seq_res;
666 struct nfs_fattr * fattr;
667 struct nfs4_label *label;
668 const struct nfs_server * server;
669 };
670
671 struct nfs_linkargs {
672 struct nfs_fh * fromfh;
673 struct nfs_fh * tofh;
674 const char * toname;
675 unsigned int tolen;
676 };
677
678 struct nfs_symlinkargs {
679 struct nfs_fh * fromfh;
680 const char * fromname;
681 unsigned int fromlen;
682 struct page ** pages;
683 unsigned int pathlen;
684 struct iattr * sattr;
685 };
686
687 struct nfs_readdirargs {
688 struct nfs_fh * fh;
689 __u32 cookie;
690 unsigned int count;
691 struct page ** pages;
692 };
693
694 struct nfs3_getaclargs {
695 struct nfs_fh * fh;
696 int mask;
697 struct page ** pages;
698 };
699
700 struct nfs3_setaclargs {
701 struct inode * inode;
702 int mask;
703 struct posix_acl * acl_access;
704 struct posix_acl * acl_default;
705 size_t len;
706 unsigned int npages;
707 struct page ** pages;
708 };
709
710 struct nfs_diropok {
711 struct nfs_fh * fh;
712 struct nfs_fattr * fattr;
713 };
714
715 struct nfs_readlinkargs {
716 struct nfs_fh * fh;
717 unsigned int pgbase;
718 unsigned int pglen;
719 struct page ** pages;
720 };
721
722 struct nfs3_sattrargs {
723 struct nfs_fh * fh;
724 struct iattr * sattr;
725 unsigned int guard;
726 struct timespec guardtime;
727 };
728
729 struct nfs3_diropargs {
730 struct nfs_fh * fh;
731 const char * name;
732 unsigned int len;
733 };
734
735 struct nfs3_accessargs {
736 struct nfs_fh * fh;
737 __u32 access;
738 };
739
740 struct nfs3_createargs {
741 struct nfs_fh * fh;
742 const char * name;
743 unsigned int len;
744 struct iattr * sattr;
745 enum nfs3_createmode createmode;
746 __be32 verifier[2];
747 };
748
749 struct nfs3_mkdirargs {
750 struct nfs_fh * fh;
751 const char * name;
752 unsigned int len;
753 struct iattr * sattr;
754 };
755
756 struct nfs3_symlinkargs {
757 struct nfs_fh * fromfh;
758 const char * fromname;
759 unsigned int fromlen;
760 struct page ** pages;
761 unsigned int pathlen;
762 struct iattr * sattr;
763 };
764
765 struct nfs3_mknodargs {
766 struct nfs_fh * fh;
767 const char * name;
768 unsigned int len;
769 enum nfs3_ftype type;
770 struct iattr * sattr;
771 dev_t rdev;
772 };
773
774 struct nfs3_linkargs {
775 struct nfs_fh * fromfh;
776 struct nfs_fh * tofh;
777 const char * toname;
778 unsigned int tolen;
779 };
780
781 struct nfs3_readdirargs {
782 struct nfs_fh * fh;
783 __u64 cookie;
784 __be32 verf[2];
785 int plus;
786 unsigned int count;
787 struct page ** pages;
788 };
789
790 struct nfs3_diropres {
791 struct nfs_fattr * dir_attr;
792 struct nfs_fh * fh;
793 struct nfs_fattr * fattr;
794 };
795
796 struct nfs3_accessres {
797 struct nfs_fattr * fattr;
798 __u32 access;
799 };
800
801 struct nfs3_readlinkargs {
802 struct nfs_fh * fh;
803 unsigned int pgbase;
804 unsigned int pglen;
805 struct page ** pages;
806 };
807
808 struct nfs3_linkres {
809 struct nfs_fattr * dir_attr;
810 struct nfs_fattr * fattr;
811 };
812
813 struct nfs3_readdirres {
814 struct nfs_fattr * dir_attr;
815 __be32 * verf;
816 int plus;
817 };
818
819 struct nfs3_getaclres {
820 struct nfs_fattr * fattr;
821 int mask;
822 unsigned int acl_access_count;
823 unsigned int acl_default_count;
824 struct posix_acl * acl_access;
825 struct posix_acl * acl_default;
826 };
827
828 #if IS_ENABLED(CONFIG_NFS_V4)
829
830 typedef u64 clientid4;
831
832 struct nfs4_accessargs {
833 struct nfs4_sequence_args seq_args;
834 const struct nfs_fh * fh;
835 const u32 * bitmask;
836 u32 access;
837 };
838
839 struct nfs4_accessres {
840 struct nfs4_sequence_res seq_res;
841 const struct nfs_server * server;
842 struct nfs_fattr * fattr;
843 u32 supported;
844 u32 access;
845 };
846
847 struct nfs4_create_arg {
848 struct nfs4_sequence_args seq_args;
849 u32 ftype;
850 union {
851 struct {
852 struct page ** pages;
853 unsigned int len;
854 } symlink; /* NF4LNK */
855 struct {
856 u32 specdata1;
857 u32 specdata2;
858 } device; /* NF4BLK, NF4CHR */
859 } u;
860 const struct qstr * name;
861 const struct nfs_server * server;
862 const struct iattr * attrs;
863 const struct nfs_fh * dir_fh;
864 const u32 * bitmask;
865 const struct nfs4_label *label;
866 };
867
868 struct nfs4_create_res {
869 struct nfs4_sequence_res seq_res;
870 const struct nfs_server * server;
871 struct nfs_fh * fh;
872 struct nfs_fattr * fattr;
873 struct nfs4_label *label;
874 struct nfs4_change_info dir_cinfo;
875 };
876
877 struct nfs4_fsinfo_arg {
878 struct nfs4_sequence_args seq_args;
879 const struct nfs_fh * fh;
880 const u32 * bitmask;
881 };
882
883 struct nfs4_fsinfo_res {
884 struct nfs4_sequence_res seq_res;
885 struct nfs_fsinfo *fsinfo;
886 };
887
888 struct nfs4_getattr_arg {
889 struct nfs4_sequence_args seq_args;
890 const struct nfs_fh * fh;
891 const u32 * bitmask;
892 };
893
894 struct nfs4_getattr_res {
895 struct nfs4_sequence_res seq_res;
896 const struct nfs_server * server;
897 struct nfs_fattr * fattr;
898 struct nfs4_label *label;
899 };
900
901 struct nfs4_link_arg {
902 struct nfs4_sequence_args seq_args;
903 const struct nfs_fh * fh;
904 const struct nfs_fh * dir_fh;
905 const struct qstr * name;
906 const u32 * bitmask;
907 };
908
909 struct nfs4_link_res {
910 struct nfs4_sequence_res seq_res;
911 const struct nfs_server * server;
912 struct nfs_fattr * fattr;
913 struct nfs4_label *label;
914 struct nfs4_change_info cinfo;
915 struct nfs_fattr * dir_attr;
916 };
917
918
919 struct nfs4_lookup_arg {
920 struct nfs4_sequence_args seq_args;
921 const struct nfs_fh * dir_fh;
922 const struct qstr * name;
923 const u32 * bitmask;
924 };
925
926 struct nfs4_lookup_res {
927 struct nfs4_sequence_res seq_res;
928 const struct nfs_server * server;
929 struct nfs_fattr * fattr;
930 struct nfs_fh * fh;
931 struct nfs4_label *label;
932 };
933
934 struct nfs4_lookup_root_arg {
935 struct nfs4_sequence_args seq_args;
936 const u32 * bitmask;
937 };
938
939 struct nfs4_pathconf_arg {
940 struct nfs4_sequence_args seq_args;
941 const struct nfs_fh * fh;
942 const u32 * bitmask;
943 };
944
945 struct nfs4_pathconf_res {
946 struct nfs4_sequence_res seq_res;
947 struct nfs_pathconf *pathconf;
948 };
949
950 struct nfs4_readdir_arg {
951 struct nfs4_sequence_args seq_args;
952 const struct nfs_fh * fh;
953 u64 cookie;
954 nfs4_verifier verifier;
955 u32 count;
956 struct page ** pages; /* zero-copy data */
957 unsigned int pgbase; /* zero-copy data */
958 const u32 * bitmask;
959 int plus;
960 };
961
962 struct nfs4_readdir_res {
963 struct nfs4_sequence_res seq_res;
964 nfs4_verifier verifier;
965 unsigned int pgbase;
966 };
967
968 struct nfs4_readlink {
969 struct nfs4_sequence_args seq_args;
970 const struct nfs_fh * fh;
971 unsigned int pgbase;
972 unsigned int pglen; /* zero-copy data */
973 struct page ** pages; /* zero-copy data */
974 };
975
976 struct nfs4_readlink_res {
977 struct nfs4_sequence_res seq_res;
978 };
979
980 #define NFS4_SETCLIENTID_NAMELEN (127)
981 struct nfs4_setclientid {
982 const nfs4_verifier * sc_verifier;
983 unsigned int sc_name_len;
984 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
985 u32 sc_prog;
986 unsigned int sc_netid_len;
987 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
988 unsigned int sc_uaddr_len;
989 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
990 u32 sc_cb_ident;
991 struct rpc_cred *sc_cred;
992 };
993
994 struct nfs4_setclientid_res {
995 u64 clientid;
996 nfs4_verifier confirm;
997 };
998
999 struct nfs4_statfs_arg {
1000 struct nfs4_sequence_args seq_args;
1001 const struct nfs_fh * fh;
1002 const u32 * bitmask;
1003 };
1004
1005 struct nfs4_statfs_res {
1006 struct nfs4_sequence_res seq_res;
1007 struct nfs_fsstat *fsstat;
1008 };
1009
1010 struct nfs4_server_caps_arg {
1011 struct nfs4_sequence_args seq_args;
1012 struct nfs_fh *fhandle;
1013 };
1014
1015 struct nfs4_server_caps_res {
1016 struct nfs4_sequence_res seq_res;
1017 u32 attr_bitmask[3];
1018 u32 acl_bitmask;
1019 u32 has_links;
1020 u32 has_symlinks;
1021 u32 fh_expire_type;
1022 };
1023
1024 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1025 struct nfs4_pathname {
1026 unsigned int ncomponents;
1027 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1028 };
1029
1030 #define NFS4_FS_LOCATION_MAXSERVERS 10
1031 struct nfs4_fs_location {
1032 unsigned int nservers;
1033 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1034 struct nfs4_pathname rootpath;
1035 };
1036
1037 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1038 struct nfs4_fs_locations {
1039 struct nfs_fattr fattr;
1040 const struct nfs_server *server;
1041 struct nfs4_pathname fs_path;
1042 int nlocations;
1043 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1044 };
1045
1046 struct nfs4_fs_locations_arg {
1047 struct nfs4_sequence_args seq_args;
1048 const struct nfs_fh *dir_fh;
1049 const struct nfs_fh *fh;
1050 const struct qstr *name;
1051 struct page *page;
1052 const u32 *bitmask;
1053 clientid4 clientid;
1054 unsigned char migration:1, renew:1;
1055 };
1056
1057 struct nfs4_fs_locations_res {
1058 struct nfs4_sequence_res seq_res;
1059 struct nfs4_fs_locations *fs_locations;
1060 unsigned char migration:1, renew:1;
1061 };
1062
1063 struct nfs4_secinfo4 {
1064 u32 flavor;
1065 struct rpcsec_gss_info flavor_info;
1066 };
1067
1068 struct nfs4_secinfo_flavors {
1069 unsigned int num_flavors;
1070 struct nfs4_secinfo4 flavors[0];
1071 };
1072
1073 struct nfs4_secinfo_arg {
1074 struct nfs4_sequence_args seq_args;
1075 const struct nfs_fh *dir_fh;
1076 const struct qstr *name;
1077 };
1078
1079 struct nfs4_secinfo_res {
1080 struct nfs4_sequence_res seq_res;
1081 struct nfs4_secinfo_flavors *flavors;
1082 };
1083
1084 struct nfs4_fsid_present_arg {
1085 struct nfs4_sequence_args seq_args;
1086 const struct nfs_fh *fh;
1087 clientid4 clientid;
1088 unsigned char renew:1;
1089 };
1090
1091 struct nfs4_fsid_present_res {
1092 struct nfs4_sequence_res seq_res;
1093 struct nfs_fh *fh;
1094 unsigned char renew:1;
1095 };
1096
1097 #endif /* CONFIG_NFS_V4 */
1098
1099 struct nfstime4 {
1100 u64 seconds;
1101 u32 nseconds;
1102 };
1103
1104 #ifdef CONFIG_NFS_V4_1
1105
1106 struct pnfs_commit_bucket {
1107 struct list_head written;
1108 struct list_head committing;
1109 struct pnfs_layout_segment *wlseg;
1110 struct pnfs_layout_segment *clseg;
1111 struct nfs_writeverf direct_verf;
1112 };
1113
1114 struct pnfs_ds_commit_info {
1115 int nwritten;
1116 int ncommitting;
1117 int nbuckets;
1118 struct pnfs_commit_bucket *buckets;
1119 };
1120
1121 #define NFS4_OP_MAP_NUM_LONGS \
1122 DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
1123 #define NFS4_OP_MAP_NUM_WORDS \
1124 (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
1125 struct nfs4_op_map {
1126 union {
1127 unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
1128 u32 words[NFS4_OP_MAP_NUM_WORDS];
1129 } u;
1130 };
1131
1132 struct nfs41_state_protection {
1133 u32 how;
1134 struct nfs4_op_map enforce;
1135 struct nfs4_op_map allow;
1136 };
1137
1138 #define NFS4_EXCHANGE_ID_LEN (48)
1139 struct nfs41_exchange_id_args {
1140 struct nfs_client *client;
1141 nfs4_verifier *verifier;
1142 unsigned int id_len;
1143 char id[NFS4_EXCHANGE_ID_LEN];
1144 u32 flags;
1145 struct nfs41_state_protection state_protect;
1146 };
1147
1148 struct nfs41_server_owner {
1149 uint64_t minor_id;
1150 uint32_t major_id_sz;
1151 char major_id[NFS4_OPAQUE_LIMIT];
1152 };
1153
1154 struct nfs41_server_scope {
1155 uint32_t server_scope_sz;
1156 char server_scope[NFS4_OPAQUE_LIMIT];
1157 };
1158
1159 struct nfs41_impl_id {
1160 char domain[NFS4_OPAQUE_LIMIT + 1];
1161 char name[NFS4_OPAQUE_LIMIT + 1];
1162 struct nfstime4 date;
1163 };
1164
1165 struct nfs41_bind_conn_to_session_res {
1166 struct nfs4_session *session;
1167 u32 dir;
1168 bool use_conn_in_rdma_mode;
1169 };
1170
1171 struct nfs41_exchange_id_res {
1172 u64 clientid;
1173 u32 seqid;
1174 u32 flags;
1175 struct nfs41_server_owner *server_owner;
1176 struct nfs41_server_scope *server_scope;
1177 struct nfs41_impl_id *impl_id;
1178 struct nfs41_state_protection state_protect;
1179 };
1180
1181 struct nfs41_create_session_args {
1182 struct nfs_client *client;
1183 uint32_t flags;
1184 uint32_t cb_program;
1185 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1186 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1187 };
1188
1189 struct nfs41_create_session_res {
1190 struct nfs_client *client;
1191 };
1192
1193 struct nfs41_reclaim_complete_args {
1194 struct nfs4_sequence_args seq_args;
1195 /* In the future extend to include curr_fh for use with migration */
1196 unsigned char one_fs:1;
1197 };
1198
1199 struct nfs41_reclaim_complete_res {
1200 struct nfs4_sequence_res seq_res;
1201 };
1202
1203 #define SECINFO_STYLE_CURRENT_FH 0
1204 #define SECINFO_STYLE_PARENT 1
1205 struct nfs41_secinfo_no_name_args {
1206 struct nfs4_sequence_args seq_args;
1207 int style;
1208 };
1209
1210 struct nfs41_test_stateid_args {
1211 struct nfs4_sequence_args seq_args;
1212 nfs4_stateid *stateid;
1213 };
1214
1215 struct nfs41_test_stateid_res {
1216 struct nfs4_sequence_res seq_res;
1217 unsigned int status;
1218 };
1219
1220 struct nfs41_free_stateid_args {
1221 struct nfs4_sequence_args seq_args;
1222 nfs4_stateid stateid;
1223 };
1224
1225 struct nfs41_free_stateid_res {
1226 struct nfs4_sequence_res seq_res;
1227 unsigned int status;
1228 };
1229
1230 static inline void
1231 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1232 {
1233 kfree(cinfo->buckets);
1234 }
1235
1236 #else
1237
1238 struct pnfs_ds_commit_info {
1239 };
1240
1241 static inline void
1242 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1243 {
1244 }
1245
1246 #endif /* CONFIG_NFS_V4_1 */
1247
1248 #ifdef CONFIG_NFS_V4_2
1249 struct nfs42_falloc_args {
1250 struct nfs4_sequence_args seq_args;
1251
1252 struct nfs_fh *falloc_fh;
1253 nfs4_stateid falloc_stateid;
1254 u64 falloc_offset;
1255 u64 falloc_length;
1256 };
1257
1258 struct nfs42_falloc_res {
1259 struct nfs4_sequence_res seq_res;
1260 unsigned int status;
1261 };
1262
1263 struct nfs42_seek_args {
1264 struct nfs4_sequence_args seq_args;
1265
1266 struct nfs_fh *sa_fh;
1267 nfs4_stateid sa_stateid;
1268 u64 sa_offset;
1269 u32 sa_what;
1270 };
1271
1272 struct nfs42_seek_res {
1273 struct nfs4_sequence_res seq_res;
1274 unsigned int status;
1275
1276 u32 sr_eof;
1277 u64 sr_offset;
1278 };
1279 #endif
1280
1281 struct nfs_page;
1282
1283 #define NFS_PAGEVEC_SIZE (8U)
1284
1285 struct nfs_page_array {
1286 struct page **pagevec;
1287 unsigned int npages; /* Max length of pagevec */
1288 struct page *page_array[NFS_PAGEVEC_SIZE];
1289 };
1290
1291 /* used as flag bits in nfs_pgio_header */
1292 enum {
1293 NFS_IOHDR_ERROR = 0,
1294 NFS_IOHDR_EOF,
1295 NFS_IOHDR_REDO,
1296 };
1297
1298 struct nfs_pgio_header {
1299 struct inode *inode;
1300 struct rpc_cred *cred;
1301 struct list_head pages;
1302 struct nfs_page *req;
1303 struct nfs_writeverf verf; /* Used for writes */
1304 struct pnfs_layout_segment *lseg;
1305 loff_t io_start;
1306 const struct rpc_call_ops *mds_ops;
1307 void (*release) (struct nfs_pgio_header *hdr);
1308 const struct nfs_pgio_completion_ops *completion_ops;
1309 const struct nfs_rw_ops *rw_ops;
1310 struct nfs_direct_req *dreq;
1311 void *layout_private;
1312 spinlock_t lock;
1313 /* fields protected by lock */
1314 int pnfs_error;
1315 int error; /* merge with pnfs_error */
1316 unsigned long good_bytes; /* boundary of good data */
1317 unsigned long flags;
1318
1319 /*
1320 * rpc data
1321 */
1322 struct rpc_task task;
1323 struct nfs_fattr fattr;
1324 struct nfs_pgio_args args; /* argument struct */
1325 struct nfs_pgio_res res; /* result struct */
1326 unsigned long timestamp; /* For lease renewal */
1327 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
1328 __u64 mds_offset; /* Filelayout dense stripe */
1329 struct nfs_page_array page_array;
1330 struct nfs_client *ds_clp; /* pNFS data server */
1331 int ds_idx; /* ds index if ds_clp is set */
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 loff_t lwb;
1371 const struct rpc_call_ops *mds_ops;
1372 const struct nfs_commit_completion_ops *completion_ops;
1373 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1374 };
1375
1376 struct nfs_pgio_completion_ops {
1377 void (*error_cleanup)(struct list_head *head);
1378 void (*init_hdr)(struct nfs_pgio_header *hdr);
1379 void (*completion)(struct nfs_pgio_header *hdr);
1380 };
1381
1382 struct nfs_unlinkdata {
1383 struct hlist_node list;
1384 struct nfs_removeargs args;
1385 struct nfs_removeres res;
1386 struct inode *dir;
1387 struct rpc_cred *cred;
1388 struct nfs_fattr dir_attr;
1389 long timeout;
1390 };
1391
1392 struct nfs_renamedata {
1393 struct nfs_renameargs args;
1394 struct nfs_renameres res;
1395 struct rpc_cred *cred;
1396 struct inode *old_dir;
1397 struct dentry *old_dentry;
1398 struct nfs_fattr old_fattr;
1399 struct inode *new_dir;
1400 struct dentry *new_dentry;
1401 struct nfs_fattr new_fattr;
1402 void (*complete)(struct rpc_task *, struct nfs_renamedata *);
1403 long timeout;
1404 };
1405
1406 struct nfs_access_entry;
1407 struct nfs_client;
1408 struct rpc_timeout;
1409 struct nfs_subversion;
1410 struct nfs_mount_info;
1411 struct nfs_client_initdata;
1412 struct nfs_pageio_descriptor;
1413
1414 /*
1415 * RPC procedure vector for NFSv2/NFSv3 demuxing
1416 */
1417 struct nfs_rpc_ops {
1418 u32 version; /* Protocol version */
1419 const struct dentry_operations *dentry_ops;
1420 const struct inode_operations *dir_inode_ops;
1421 const struct inode_operations *file_inode_ops;
1422 const struct file_operations *file_ops;
1423
1424 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1425 struct nfs_fsinfo *);
1426 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1427 struct nfs_fh *, struct nfs_fattr *);
1428 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1429 struct nfs_subversion *);
1430 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1431 struct nfs_fattr *, struct nfs4_label *);
1432 int (*setattr) (struct dentry *, struct nfs_fattr *,
1433 struct iattr *);
1434 int (*lookup) (struct inode *, struct qstr *,
1435 struct nfs_fh *, struct nfs_fattr *,
1436 struct nfs4_label *);
1437 int (*access) (struct inode *, struct nfs_access_entry *);
1438 int (*readlink)(struct inode *, struct page *, unsigned int,
1439 unsigned int);
1440 int (*create) (struct inode *, struct dentry *,
1441 struct iattr *, int);
1442 int (*remove) (struct inode *, struct qstr *);
1443 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1444 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1445 int (*unlink_done) (struct rpc_task *, struct inode *);
1446 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1447 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1448 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1449 int (*link) (struct inode *, struct inode *, struct qstr *);
1450 int (*symlink) (struct inode *, struct dentry *, struct page *,
1451 unsigned int, struct iattr *);
1452 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1453 int (*rmdir) (struct inode *, struct qstr *);
1454 int (*readdir) (struct dentry *, struct rpc_cred *,
1455 u64, struct page **, unsigned int, int);
1456 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1457 dev_t);
1458 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1459 struct nfs_fsstat *);
1460 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1461 struct nfs_fsinfo *);
1462 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1463 struct nfs_pathconf *);
1464 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1465 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
1466 int (*pgio_rpc_prepare)(struct rpc_task *,
1467 struct nfs_pgio_header *);
1468 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
1469 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
1470 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *);
1471 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
1472 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1473 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1474 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1475 int (*lock)(struct file *, int, struct file_lock *);
1476 int (*lock_check_bounds)(const struct file_lock *);
1477 void (*clear_acl_cache)(struct inode *);
1478 void (*close_context)(struct nfs_open_context *ctx, int);
1479 struct inode * (*open_context) (struct inode *dir,
1480 struct nfs_open_context *ctx,
1481 int open_flags,
1482 struct iattr *iattr,
1483 int *);
1484 int (*have_delegation)(struct inode *, fmode_t);
1485 int (*return_delegation)(struct inode *);
1486 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1487 struct nfs_client *
1488 (*init_client) (struct nfs_client *, const struct rpc_timeout *,
1489 const char *);
1490 void (*free_client) (struct nfs_client *);
1491 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1492 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1493 struct nfs_fattr *, rpc_authflavor_t);
1494 };
1495
1496 /*
1497 * NFS_CALL(getattr, inode, (fattr));
1498 * into
1499 * NFS_PROTO(inode)->getattr(fattr);
1500 */
1501 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1502
1503 /*
1504 * Function vectors etc. for the NFS client
1505 */
1506 extern const struct nfs_rpc_ops nfs_v2_clientops;
1507 extern const struct nfs_rpc_ops nfs_v3_clientops;
1508 extern const struct nfs_rpc_ops nfs_v4_clientops;
1509 extern const struct rpc_version nfs_version2;
1510 extern const struct rpc_version nfs_version3;
1511 extern const struct rpc_version nfs_version4;
1512
1513 extern const struct rpc_version nfsacl_version3;
1514 extern const struct rpc_program nfsacl_program;
1515
1516 #endif
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