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sony-laptop: always try to unblock rfkill on load
[linux-2.6/kvm.git] / include / linux / nfs_xdr.h
blobb89c34e40bc2b23e5d34485f8640a28197b7a3e5
1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
3
4 #include <linux/nfsacl.h>
5
6 /*
7 * To change the maximum rsize and wsize supported by the NFS client, adjust
8 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
9 * support a megabyte or more. The default is left at 4096 bytes, which is
10 * reasonable for NFS over UDP.
11 */
12 #define NFS_MAX_FILE_IO_SIZE (1048576U)
13 #define NFS_DEF_FILE_IO_SIZE (4096U)
14 #define NFS_MIN_FILE_IO_SIZE (1024U)
15
16 struct nfs_fsid {
17 uint64_t major;
18 uint64_t minor;
19 };
20
21 /*
22 * Helper for checking equality between 2 fsids.
23 */
24 static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
25 {
26 return a->major == b->major && a->minor == b->minor;
27 }
28
29 struct nfs_fattr {
30 unsigned int valid; /* which fields are valid */
31 umode_t mode;
32 __u32 nlink;
33 __u32 uid;
34 __u32 gid;
35 dev_t rdev;
36 __u64 size;
37 union {
38 struct {
39 __u32 blocksize;
40 __u32 blocks;
41 } nfs2;
42 struct {
43 __u64 used;
44 } nfs3;
45 } du;
46 struct nfs_fsid fsid;
47 __u64 fileid;
48 struct timespec atime;
49 struct timespec mtime;
50 struct timespec ctime;
51 __u64 change_attr; /* NFSv4 change attribute */
52 __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
53 __u64 pre_size; /* pre_op_attr.size */
54 struct timespec pre_mtime; /* pre_op_attr.mtime */
55 struct timespec pre_ctime; /* pre_op_attr.ctime */
56 unsigned long time_start;
57 unsigned long gencount;
58 };
59
60 #define NFS_ATTR_FATTR_TYPE (1U << 0)
61 #define NFS_ATTR_FATTR_MODE (1U << 1)
62 #define NFS_ATTR_FATTR_NLINK (1U << 2)
63 #define NFS_ATTR_FATTR_OWNER (1U << 3)
64 #define NFS_ATTR_FATTR_GROUP (1U << 4)
65 #define NFS_ATTR_FATTR_RDEV (1U << 5)
66 #define NFS_ATTR_FATTR_SIZE (1U << 6)
67 #define NFS_ATTR_FATTR_PRESIZE (1U << 7)
68 #define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
69 #define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
70 #define NFS_ATTR_FATTR_FSID (1U << 10)
71 #define NFS_ATTR_FATTR_FILEID (1U << 11)
72 #define NFS_ATTR_FATTR_ATIME (1U << 12)
73 #define NFS_ATTR_FATTR_MTIME (1U << 13)
74 #define NFS_ATTR_FATTR_CTIME (1U << 14)
75 #define NFS_ATTR_FATTR_PREMTIME (1U << 15)
76 #define NFS_ATTR_FATTR_PRECTIME (1U << 16)
77 #define NFS_ATTR_FATTR_CHANGE (1U << 17)
78 #define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
79 #define NFS_ATTR_FATTR_V4_REFERRAL (1U << 19) /* NFSv4 referral */
80
81 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
82 | NFS_ATTR_FATTR_MODE \
83 | NFS_ATTR_FATTR_NLINK \
84 | NFS_ATTR_FATTR_OWNER \
85 | NFS_ATTR_FATTR_GROUP \
86 | NFS_ATTR_FATTR_RDEV \
87 | NFS_ATTR_FATTR_SIZE \
88 | NFS_ATTR_FATTR_FSID \
89 | NFS_ATTR_FATTR_FILEID \
90 | NFS_ATTR_FATTR_ATIME \
91 | NFS_ATTR_FATTR_MTIME \
92 | NFS_ATTR_FATTR_CTIME)
93 #define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
94 | NFS_ATTR_FATTR_BLOCKS_USED)
95 #define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
96 | NFS_ATTR_FATTR_SPACE_USED)
97 #define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
98 | NFS_ATTR_FATTR_SPACE_USED \
99 | NFS_ATTR_FATTR_CHANGE)
100
101 /*
102 * Info on the file system
103 */
104 struct nfs_fsinfo {
105 struct nfs_fattr *fattr; /* Post-op attributes */
106 __u32 rtmax; /* max. read transfer size */
107 __u32 rtpref; /* pref. read transfer size */
108 __u32 rtmult; /* reads should be multiple of this */
109 __u32 wtmax; /* max. write transfer size */
110 __u32 wtpref; /* pref. write transfer size */
111 __u32 wtmult; /* writes should be multiple of this */
112 __u32 dtpref; /* pref. readdir transfer size */
113 __u64 maxfilesize;
114 __u32 lease_time; /* in seconds */
115 };
116
117 struct nfs_fsstat {
118 struct nfs_fattr *fattr; /* Post-op attributes */
119 __u64 tbytes; /* total size in bytes */
120 __u64 fbytes; /* # of free bytes */
121 __u64 abytes; /* # of bytes available to user */
122 __u64 tfiles; /* # of files */
123 __u64 ffiles; /* # of free files */
124 __u64 afiles; /* # of files available to user */
125 };
126
127 struct nfs2_fsstat {
128 __u32 tsize; /* Server transfer size */
129 __u32 bsize; /* Filesystem block size */
130 __u32 blocks; /* No. of "bsize" blocks on filesystem */
131 __u32 bfree; /* No. of free "bsize" blocks */
132 __u32 bavail; /* No. of available "bsize" blocks */
133 };
134
135 struct nfs_pathconf {
136 struct nfs_fattr *fattr; /* Post-op attributes */
137 __u32 max_link; /* max # of hard links */
138 __u32 max_namelen; /* max name length */
139 };
140
141 struct nfs4_change_info {
142 u32 atomic;
143 u64 before;
144 u64 after;
145 };
146
147 struct nfs_seqid;
148 /*
149 * Arguments to the open call.
150 */
151 struct nfs_openargs {
152 const struct nfs_fh * fh;
153 struct nfs_seqid * seqid;
154 int open_flags;
155 fmode_t fmode;
156 __u64 clientid;
157 __u64 id;
158 union {
159 struct iattr * attrs; /* UNCHECKED, GUARDED */
160 nfs4_verifier verifier; /* EXCLUSIVE */
161 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
162 fmode_t delegation_type; /* CLAIM_PREVIOUS */
163 } u;
164 const struct qstr * name;
165 const struct nfs_server *server; /* Needed for ID mapping */
166 const u32 * bitmask;
167 __u32 claim;
168 };
169
170 struct nfs_openres {
171 nfs4_stateid stateid;
172 struct nfs_fh fh;
173 struct nfs4_change_info cinfo;
174 __u32 rflags;
175 struct nfs_fattr * f_attr;
176 struct nfs_fattr * dir_attr;
177 struct nfs_seqid * seqid;
178 const struct nfs_server *server;
179 fmode_t delegation_type;
180 nfs4_stateid delegation;
181 __u32 do_recall;
182 __u64 maxsize;
183 __u32 attrset[NFS4_BITMAP_SIZE];
184 };
185
186 /*
187 * Arguments to the open_confirm call.
188 */
189 struct nfs_open_confirmargs {
190 const struct nfs_fh * fh;
191 nfs4_stateid * stateid;
192 struct nfs_seqid * seqid;
193 };
194
195 struct nfs_open_confirmres {
196 nfs4_stateid stateid;
197 struct nfs_seqid * seqid;
198 };
199
200 /*
201 * Arguments to the close call.
202 */
203 struct nfs_closeargs {
204 struct nfs_fh * fh;
205 nfs4_stateid * stateid;
206 struct nfs_seqid * seqid;
207 fmode_t fmode;
208 const u32 * bitmask;
209 };
210
211 struct nfs_closeres {
212 nfs4_stateid stateid;
213 struct nfs_fattr * fattr;
214 struct nfs_seqid * seqid;
215 const struct nfs_server *server;
216 };
217 /*
218 * * Arguments to the lock,lockt, and locku call.
219 * */
220 struct nfs_lowner {
221 __u64 clientid;
222 __u64 id;
223 };
224
225 struct nfs_lock_args {
226 struct nfs_fh * fh;
227 struct file_lock * fl;
228 struct nfs_seqid * lock_seqid;
229 nfs4_stateid * lock_stateid;
230 struct nfs_seqid * open_seqid;
231 nfs4_stateid * open_stateid;
232 struct nfs_lowner lock_owner;
233 unsigned char block : 1;
234 unsigned char reclaim : 1;
235 unsigned char new_lock_owner : 1;
236 };
237
238 struct nfs_lock_res {
239 nfs4_stateid stateid;
240 struct nfs_seqid * lock_seqid;
241 struct nfs_seqid * open_seqid;
242 };
243
244 struct nfs_locku_args {
245 struct nfs_fh * fh;
246 struct file_lock * fl;
247 struct nfs_seqid * seqid;
248 nfs4_stateid * stateid;
249 };
250
251 struct nfs_locku_res {
252 nfs4_stateid stateid;
253 struct nfs_seqid * seqid;
254 };
255
256 struct nfs_lockt_args {
257 struct nfs_fh * fh;
258 struct file_lock * fl;
259 struct nfs_lowner lock_owner;
260 };
261
262 struct nfs_lockt_res {
263 struct file_lock * denied; /* LOCK, LOCKT failed */
264 };
265
266 struct nfs4_delegreturnargs {
267 const struct nfs_fh *fhandle;
268 const nfs4_stateid *stateid;
269 const u32 * bitmask;
270 };
271
272 struct nfs4_delegreturnres {
273 struct nfs_fattr * fattr;
274 const struct nfs_server *server;
275 };
276
277 /*
278 * Arguments to the read call.
279 */
280 struct nfs_readargs {
281 struct nfs_fh * fh;
282 struct nfs_open_context *context;
283 __u64 offset;
284 __u32 count;
285 unsigned int pgbase;
286 struct page ** pages;
287 };
288
289 struct nfs_readres {
290 struct nfs_fattr * fattr;
291 __u32 count;
292 int eof;
293 };
294
295 /*
296 * Arguments to the write call.
297 */
298 struct nfs_writeargs {
299 struct nfs_fh * fh;
300 struct nfs_open_context *context;
301 __u64 offset;
302 __u32 count;
303 enum nfs3_stable_how stable;
304 unsigned int pgbase;
305 struct page ** pages;
306 const u32 * bitmask;
307 };
308
309 struct nfs_writeverf {
310 enum nfs3_stable_how committed;
311 __be32 verifier[2];
312 };
313
314 struct nfs_writeres {
315 struct nfs_fattr * fattr;
316 struct nfs_writeverf * verf;
317 __u32 count;
318 const struct nfs_server *server;
319 };
320
321 /*
322 * Common arguments to the unlink call
323 */
324 struct nfs_removeargs {
325 const struct nfs_fh *fh;
326 struct qstr name;
327 const u32 * bitmask;
328 };
329
330 struct nfs_removeres {
331 const struct nfs_server *server;
332 struct nfs4_change_info cinfo;
333 struct nfs_fattr dir_attr;
334 };
335
336 /*
337 * Argument struct for decode_entry function
338 */
339 struct nfs_entry {
340 __u64 ino;
341 __u64 cookie,
342 prev_cookie;
343 const char * name;
344 unsigned int len;
345 int eof;
346 struct nfs_fh * fh;
347 struct nfs_fattr * fattr;
348 };
349
350 /*
351 * The following types are for NFSv2 only.
352 */
353 struct nfs_sattrargs {
354 struct nfs_fh * fh;
355 struct iattr * sattr;
356 };
357
358 struct nfs_diropargs {
359 struct nfs_fh * fh;
360 const char * name;
361 unsigned int len;
362 };
363
364 struct nfs_createargs {
365 struct nfs_fh * fh;
366 const char * name;
367 unsigned int len;
368 struct iattr * sattr;
369 };
370
371 struct nfs_renameargs {
372 struct nfs_fh * fromfh;
373 const char * fromname;
374 unsigned int fromlen;
375 struct nfs_fh * tofh;
376 const char * toname;
377 unsigned int tolen;
378 };
379
380 struct nfs_setattrargs {
381 struct nfs_fh * fh;
382 nfs4_stateid stateid;
383 struct iattr * iap;
384 const struct nfs_server * server; /* Needed for name mapping */
385 const u32 * bitmask;
386 };
387
388 struct nfs_setaclargs {
389 struct nfs_fh * fh;
390 size_t acl_len;
391 unsigned int acl_pgbase;
392 struct page ** acl_pages;
393 };
394
395 struct nfs_getaclargs {
396 struct nfs_fh * fh;
397 size_t acl_len;
398 unsigned int acl_pgbase;
399 struct page ** acl_pages;
400 };
401
402 struct nfs_setattrres {
403 struct nfs_fattr * fattr;
404 const struct nfs_server * server;
405 };
406
407 struct nfs_linkargs {
408 struct nfs_fh * fromfh;
409 struct nfs_fh * tofh;
410 const char * toname;
411 unsigned int tolen;
412 };
413
414 struct nfs_symlinkargs {
415 struct nfs_fh * fromfh;
416 const char * fromname;
417 unsigned int fromlen;
418 struct page ** pages;
419 unsigned int pathlen;
420 struct iattr * sattr;
421 };
422
423 struct nfs_readdirargs {
424 struct nfs_fh * fh;
425 __u32 cookie;
426 unsigned int count;
427 struct page ** pages;
428 };
429
430 struct nfs3_getaclargs {
431 struct nfs_fh * fh;
432 int mask;
433 struct page ** pages;
434 };
435
436 struct nfs3_setaclargs {
437 struct inode * inode;
438 int mask;
439 struct posix_acl * acl_access;
440 struct posix_acl * acl_default;
441 size_t len;
442 unsigned int npages;
443 struct page ** pages;
444 };
445
446 struct nfs_diropok {
447 struct nfs_fh * fh;
448 struct nfs_fattr * fattr;
449 };
450
451 struct nfs_readlinkargs {
452 struct nfs_fh * fh;
453 unsigned int pgbase;
454 unsigned int pglen;
455 struct page ** pages;
456 };
457
458 struct nfs3_sattrargs {
459 struct nfs_fh * fh;
460 struct iattr * sattr;
461 unsigned int guard;
462 struct timespec guardtime;
463 };
464
465 struct nfs3_diropargs {
466 struct nfs_fh * fh;
467 const char * name;
468 unsigned int len;
469 };
470
471 struct nfs3_accessargs {
472 struct nfs_fh * fh;
473 __u32 access;
474 };
475
476 struct nfs3_createargs {
477 struct nfs_fh * fh;
478 const char * name;
479 unsigned int len;
480 struct iattr * sattr;
481 enum nfs3_createmode createmode;
482 __be32 verifier[2];
483 };
484
485 struct nfs3_mkdirargs {
486 struct nfs_fh * fh;
487 const char * name;
488 unsigned int len;
489 struct iattr * sattr;
490 };
491
492 struct nfs3_symlinkargs {
493 struct nfs_fh * fromfh;
494 const char * fromname;
495 unsigned int fromlen;
496 struct page ** pages;
497 unsigned int pathlen;
498 struct iattr * sattr;
499 };
500
501 struct nfs3_mknodargs {
502 struct nfs_fh * fh;
503 const char * name;
504 unsigned int len;
505 enum nfs3_ftype type;
506 struct iattr * sattr;
507 dev_t rdev;
508 };
509
510 struct nfs3_renameargs {
511 struct nfs_fh * fromfh;
512 const char * fromname;
513 unsigned int fromlen;
514 struct nfs_fh * tofh;
515 const char * toname;
516 unsigned int tolen;
517 };
518
519 struct nfs3_linkargs {
520 struct nfs_fh * fromfh;
521 struct nfs_fh * tofh;
522 const char * toname;
523 unsigned int tolen;
524 };
525
526 struct nfs3_readdirargs {
527 struct nfs_fh * fh;
528 __u64 cookie;
529 __be32 verf[2];
530 int plus;
531 unsigned int count;
532 struct page ** pages;
533 };
534
535 struct nfs3_diropres {
536 struct nfs_fattr * dir_attr;
537 struct nfs_fh * fh;
538 struct nfs_fattr * fattr;
539 };
540
541 struct nfs3_accessres {
542 struct nfs_fattr * fattr;
543 __u32 access;
544 };
545
546 struct nfs3_readlinkargs {
547 struct nfs_fh * fh;
548 unsigned int pgbase;
549 unsigned int pglen;
550 struct page ** pages;
551 };
552
553 struct nfs3_renameres {
554 struct nfs_fattr * fromattr;
555 struct nfs_fattr * toattr;
556 };
557
558 struct nfs3_linkres {
559 struct nfs_fattr * dir_attr;
560 struct nfs_fattr * fattr;
561 };
562
563 struct nfs3_readdirres {
564 struct nfs_fattr * dir_attr;
565 __be32 * verf;
566 int plus;
567 };
568
569 struct nfs3_getaclres {
570 struct nfs_fattr * fattr;
571 int mask;
572 unsigned int acl_access_count;
573 unsigned int acl_default_count;
574 struct posix_acl * acl_access;
575 struct posix_acl * acl_default;
576 };
577
578 #ifdef CONFIG_NFS_V4
579
580 typedef u64 clientid4;
581
582 struct nfs4_accessargs {
583 const struct nfs_fh * fh;
584 const u32 * bitmask;
585 u32 access;
586 };
587
588 struct nfs4_accessres {
589 const struct nfs_server * server;
590 struct nfs_fattr * fattr;
591 u32 supported;
592 u32 access;
593 };
594
595 struct nfs4_create_arg {
596 u32 ftype;
597 union {
598 struct {
599 struct page ** pages;
600 unsigned int len;
601 } symlink; /* NF4LNK */
602 struct {
603 u32 specdata1;
604 u32 specdata2;
605 } device; /* NF4BLK, NF4CHR */
606 } u;
607 const struct qstr * name;
608 const struct nfs_server * server;
609 const struct iattr * attrs;
610 const struct nfs_fh * dir_fh;
611 const u32 * bitmask;
612 };
613
614 struct nfs4_create_res {
615 const struct nfs_server * server;
616 struct nfs_fh * fh;
617 struct nfs_fattr * fattr;
618 struct nfs4_change_info dir_cinfo;
619 struct nfs_fattr * dir_fattr;
620 };
621
622 struct nfs4_fsinfo_arg {
623 const struct nfs_fh * fh;
624 const u32 * bitmask;
625 };
626
627 struct nfs4_getattr_arg {
628 const struct nfs_fh * fh;
629 const u32 * bitmask;
630 };
631
632 struct nfs4_getattr_res {
633 const struct nfs_server * server;
634 struct nfs_fattr * fattr;
635 };
636
637 struct nfs4_link_arg {
638 const struct nfs_fh * fh;
639 const struct nfs_fh * dir_fh;
640 const struct qstr * name;
641 const u32 * bitmask;
642 };
643
644 struct nfs4_link_res {
645 const struct nfs_server * server;
646 struct nfs_fattr * fattr;
647 struct nfs4_change_info cinfo;
648 struct nfs_fattr * dir_attr;
649 };
650
651
652 struct nfs4_lookup_arg {
653 const struct nfs_fh * dir_fh;
654 const struct qstr * name;
655 const u32 * bitmask;
656 };
657
658 struct nfs4_lookup_res {
659 const struct nfs_server * server;
660 struct nfs_fattr * fattr;
661 struct nfs_fh * fh;
662 };
663
664 struct nfs4_lookup_root_arg {
665 const u32 * bitmask;
666 };
667
668 struct nfs4_pathconf_arg {
669 const struct nfs_fh * fh;
670 const u32 * bitmask;
671 };
672
673 struct nfs4_readdir_arg {
674 const struct nfs_fh * fh;
675 u64 cookie;
676 nfs4_verifier verifier;
677 u32 count;
678 struct page ** pages; /* zero-copy data */
679 unsigned int pgbase; /* zero-copy data */
680 const u32 * bitmask;
681 };
682
683 struct nfs4_readdir_res {
684 nfs4_verifier verifier;
685 unsigned int pgbase;
686 };
687
688 struct nfs4_readlink {
689 const struct nfs_fh * fh;
690 unsigned int pgbase;
691 unsigned int pglen; /* zero-copy data */
692 struct page ** pages; /* zero-copy data */
693 };
694
695 struct nfs4_rename_arg {
696 const struct nfs_fh * old_dir;
697 const struct nfs_fh * new_dir;
698 const struct qstr * old_name;
699 const struct qstr * new_name;
700 const u32 * bitmask;
701 };
702
703 struct nfs4_rename_res {
704 const struct nfs_server * server;
705 struct nfs4_change_info old_cinfo;
706 struct nfs_fattr * old_fattr;
707 struct nfs4_change_info new_cinfo;
708 struct nfs_fattr * new_fattr;
709 };
710
711 #define NFS4_SETCLIENTID_NAMELEN (127)
712 struct nfs4_setclientid {
713 const nfs4_verifier * sc_verifier;
714 unsigned int sc_name_len;
715 char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
716 u32 sc_prog;
717 unsigned int sc_netid_len;
718 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
719 unsigned int sc_uaddr_len;
720 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
721 u32 sc_cb_ident;
722 };
723
724 struct nfs4_statfs_arg {
725 const struct nfs_fh * fh;
726 const u32 * bitmask;
727 };
728
729 struct nfs4_server_caps_res {
730 u32 attr_bitmask[2];
731 u32 acl_bitmask;
732 u32 has_links;
733 u32 has_symlinks;
734 };
735
736 struct nfs4_string {
737 unsigned int len;
738 char *data;
739 };
740
741 #define NFS4_PATHNAME_MAXCOMPONENTS 512
742 struct nfs4_pathname {
743 unsigned int ncomponents;
744 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
745 };
746
747 #define NFS4_FS_LOCATION_MAXSERVERS 10
748 struct nfs4_fs_location {
749 unsigned int nservers;
750 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
751 struct nfs4_pathname rootpath;
752 };
753
754 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
755 struct nfs4_fs_locations {
756 struct nfs_fattr fattr;
757 const struct nfs_server *server;
758 struct nfs4_pathname fs_path;
759 int nlocations;
760 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
761 };
762
763 struct nfs4_fs_locations_arg {
764 const struct nfs_fh *dir_fh;
765 const struct qstr *name;
766 struct page *page;
767 const u32 *bitmask;
768 };
769
770 #endif /* CONFIG_NFS_V4 */
771
772 struct nfs_page;
773
774 #define NFS_PAGEVEC_SIZE (8U)
775
776 struct nfs_read_data {
777 int flags;
778 struct rpc_task task;
779 struct inode *inode;
780 struct rpc_cred *cred;
781 struct nfs_fattr fattr; /* fattr storage */
782 struct list_head pages; /* Coalesced read requests */
783 struct nfs_page *req; /* multi ops per nfs_page */
784 struct page **pagevec;
785 unsigned int npages; /* Max length of pagevec */
786 struct nfs_readargs args;
787 struct nfs_readres res;
788 #ifdef CONFIG_NFS_V4
789 unsigned long timestamp; /* For lease renewal */
790 #endif
791 struct page *page_array[NFS_PAGEVEC_SIZE];
792 };
793
794 struct nfs_write_data {
795 int flags;
796 struct rpc_task task;
797 struct inode *inode;
798 struct rpc_cred *cred;
799 struct nfs_fattr fattr;
800 struct nfs_writeverf verf;
801 struct list_head pages; /* Coalesced requests we wish to flush */
802 struct nfs_page *req; /* multi ops per nfs_page */
803 struct page **pagevec;
804 unsigned int npages; /* Max length of pagevec */
805 struct nfs_writeargs args; /* argument struct */
806 struct nfs_writeres res; /* result struct */
807 #ifdef CONFIG_NFS_V4
808 unsigned long timestamp; /* For lease renewal */
809 #endif
810 struct page *page_array[NFS_PAGEVEC_SIZE];
811 };
812
813 struct nfs_access_entry;
814
815 /*
816 * RPC procedure vector for NFSv2/NFSv3 demuxing
817 */
818 struct nfs_rpc_ops {
819 u32 version; /* Protocol version */
820 const struct dentry_operations *dentry_ops;
821 const struct inode_operations *dir_inode_ops;
822 const struct inode_operations *file_inode_ops;
823
824 int (*getroot) (struct nfs_server *, struct nfs_fh *,
825 struct nfs_fsinfo *);
826 int (*lookupfh)(struct nfs_server *, struct nfs_fh *,
827 struct qstr *, struct nfs_fh *,
828 struct nfs_fattr *);
829 int (*getattr) (struct nfs_server *, struct nfs_fh *,
830 struct nfs_fattr *);
831 int (*setattr) (struct dentry *, struct nfs_fattr *,
832 struct iattr *);
833 int (*lookup) (struct inode *, struct qstr *,
834 struct nfs_fh *, struct nfs_fattr *);
835 int (*access) (struct inode *, struct nfs_access_entry *);
836 int (*readlink)(struct inode *, struct page *, unsigned int,
837 unsigned int);
838 int (*create) (struct inode *, struct dentry *,
839 struct iattr *, int, struct nameidata *);
840 int (*remove) (struct inode *, struct qstr *);
841 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
842 int (*unlink_done) (struct rpc_task *, struct inode *);
843 int (*rename) (struct inode *, struct qstr *,
844 struct inode *, struct qstr *);
845 int (*link) (struct inode *, struct inode *, struct qstr *);
846 int (*symlink) (struct inode *, struct dentry *, struct page *,
847 unsigned int, struct iattr *);
848 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
849 int (*rmdir) (struct inode *, struct qstr *);
850 int (*readdir) (struct dentry *, struct rpc_cred *,
851 u64, struct page *, unsigned int, int);
852 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
853 dev_t);
854 int (*statfs) (struct nfs_server *, struct nfs_fh *,
855 struct nfs_fsstat *);
856 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
857 struct nfs_fsinfo *);
858 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
859 struct nfs_pathconf *);
860 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
861 __be32 *(*decode_dirent)(__be32 *, struct nfs_entry *, int plus);
862 void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
863 int (*read_done) (struct rpc_task *, struct nfs_read_data *);
864 void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
865 int (*write_done) (struct rpc_task *, struct nfs_write_data *);
866 void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
867 int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
868 int (*lock)(struct file *, int, struct file_lock *);
869 int (*lock_check_bounds)(const struct file_lock *);
870 void (*clear_acl_cache)(struct inode *);
871 void (*close_context)(struct nfs_open_context *ctx, int);
872 };
873
874 /*
875 * NFS_CALL(getattr, inode, (fattr));
876 * into
877 * NFS_PROTO(inode)->getattr(fattr);
878 */
879 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
880
881 /*
882 * Function vectors etc. for the NFS client
883 */
884 extern const struct nfs_rpc_ops nfs_v2_clientops;
885 extern const struct nfs_rpc_ops nfs_v3_clientops;
886 extern const struct nfs_rpc_ops nfs_v4_clientops;
887 extern struct rpc_version nfs_version2;
888 extern struct rpc_version nfs_version3;
889 extern struct rpc_version nfs_version4;
890
891 extern struct rpc_version nfsacl_version3;
892 extern struct rpc_program nfsacl_program;
893
894 #endif
kernel-based virtual machine