]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - include/linux/nfs_xdr.h
projects / mirror_ubuntu-artful-kernel.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge tag 'linux-kselftest-4.13-rc6-fixes' of git://git.kernel.org/pub/scm/linux...
[mirror_ubuntu-artful-kernel.git] / include / linux / nfs_xdr.h
1 #ifndef _LINUX_NFS_XDR_H
2 #define _LINUX_NFS_XDR_H
3
4 #include <linux/nfsacl.h>
5 #include <linux/sunrpc/gss_api.h>
6
7 /*
8 * To change the maximum rsize and wsize supported by the NFS client, adjust
9 * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can
10 * support a megabyte or more. The default is left at 4096 bytes, which is
11 * reasonable for NFS over UDP.
12 */
13 #define NFS_MAX_FILE_IO_SIZE (1048576U)
14 #define NFS_DEF_FILE_IO_SIZE (4096U)
15 #define NFS_MIN_FILE_IO_SIZE (1024U)
16
17 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 * Maximal number of supported layout drivers.
129 */
130 #define NFS_MAX_LAYOUT_TYPES 8
131
132 /*
133 * Info on the file system
134 */
135 struct nfs_fsinfo {
136 struct nfs_fattr *fattr; /* Post-op attributes */
137 __u32 rtmax; /* max. read transfer size */
138 __u32 rtpref; /* pref. read transfer size */
139 __u32 rtmult; /* reads should be multiple of this */
140 __u32 wtmax; /* max. write transfer size */
141 __u32 wtpref; /* pref. write transfer size */
142 __u32 wtmult; /* writes should be multiple of this */
143 __u32 dtpref; /* pref. readdir transfer size */
144 __u64 maxfilesize;
145 struct timespec time_delta; /* server time granularity */
146 __u32 lease_time; /* in seconds */
147 __u32 nlayouttypes; /* number of layouttypes */
148 __u32 layouttype[NFS_MAX_LAYOUT_TYPES]; /* supported pnfs layout driver */
149 __u32 blksize; /* preferred pnfs io block size */
150 __u32 clone_blksize; /* granularity of a CLONE operation */
151 };
152
153 struct nfs_fsstat {
154 struct nfs_fattr *fattr; /* Post-op attributes */
155 __u64 tbytes; /* total size in bytes */
156 __u64 fbytes; /* # of free bytes */
157 __u64 abytes; /* # of bytes available to user */
158 __u64 tfiles; /* # of files */
159 __u64 ffiles; /* # of free files */
160 __u64 afiles; /* # of files available to user */
161 };
162
163 struct nfs2_fsstat {
164 __u32 tsize; /* Server transfer size */
165 __u32 bsize; /* Filesystem block size */
166 __u32 blocks; /* No. of "bsize" blocks on filesystem */
167 __u32 bfree; /* No. of free "bsize" blocks */
168 __u32 bavail; /* No. of available "bsize" blocks */
169 };
170
171 struct nfs_pathconf {
172 struct nfs_fattr *fattr; /* Post-op attributes */
173 __u32 max_link; /* max # of hard links */
174 __u32 max_namelen; /* max name length */
175 };
176
177 struct nfs4_change_info {
178 u32 atomic;
179 u64 before;
180 u64 after;
181 };
182
183 struct nfs_seqid;
184
185 /* nfs41 sessions channel attributes */
186 struct nfs4_channel_attrs {
187 u32 max_rqst_sz;
188 u32 max_resp_sz;
189 u32 max_resp_sz_cached;
190 u32 max_ops;
191 u32 max_reqs;
192 };
193
194 struct nfs4_slot;
195 struct nfs4_sequence_args {
196 struct nfs4_slot *sa_slot;
197 u8 sa_cache_this : 1,
198 sa_privileged : 1;
199 };
200
201 struct nfs4_sequence_res {
202 struct nfs4_slot *sr_slot; /* slot used to send request */
203 unsigned long sr_timestamp;
204 int sr_status; /* sequence operation status */
205 u32 sr_status_flags;
206 u32 sr_highest_slotid;
207 u32 sr_target_highest_slotid;
208 };
209
210 struct nfs4_get_lease_time_args {
211 struct nfs4_sequence_args la_seq_args;
212 };
213
214 struct nfs4_get_lease_time_res {
215 struct nfs4_sequence_res lr_seq_res;
216 struct nfs_fsinfo *lr_fsinfo;
217 };
218
219 struct xdr_stream;
220 struct nfs4_xdr_opaque_data;
221
222 struct nfs4_xdr_opaque_ops {
223 void (*encode)(struct xdr_stream *, const void *args,
224 const struct nfs4_xdr_opaque_data *);
225 void (*free)(struct nfs4_xdr_opaque_data *);
226 };
227
228 struct nfs4_xdr_opaque_data {
229 const struct nfs4_xdr_opaque_ops *ops;
230 void *data;
231 };
232
233 #define PNFS_LAYOUT_MAXSIZE 4096
234
235 struct nfs4_layoutdriver_data {
236 struct page **pages;
237 __u32 pglen;
238 __u32 len;
239 };
240
241 struct pnfs_layout_range {
242 u32 iomode;
243 u64 offset;
244 u64 length;
245 };
246
247 struct nfs4_layoutget_args {
248 struct nfs4_sequence_args seq_args;
249 __u32 type;
250 struct pnfs_layout_range range;
251 __u64 minlength;
252 __u32 maxcount;
253 struct inode *inode;
254 struct nfs_open_context *ctx;
255 nfs4_stateid stateid;
256 struct nfs4_layoutdriver_data layout;
257 };
258
259 struct nfs4_layoutget_res {
260 struct nfs4_sequence_res seq_res;
261 __u32 return_on_close;
262 struct pnfs_layout_range range;
263 __u32 type;
264 nfs4_stateid stateid;
265 struct nfs4_layoutdriver_data *layoutp;
266 };
267
268 struct nfs4_layoutget {
269 struct nfs4_layoutget_args args;
270 struct nfs4_layoutget_res res;
271 struct rpc_cred *cred;
272 gfp_t gfp_flags;
273 };
274
275 struct nfs4_getdeviceinfo_args {
276 struct nfs4_sequence_args seq_args;
277 struct pnfs_device *pdev;
278 __u32 notify_types;
279 };
280
281 struct nfs4_getdeviceinfo_res {
282 struct nfs4_sequence_res seq_res;
283 struct pnfs_device *pdev;
284 __u32 notification;
285 };
286
287 struct nfs4_layoutcommit_args {
288 struct nfs4_sequence_args seq_args;
289 nfs4_stateid stateid;
290 __u64 lastbytewritten;
291 struct inode *inode;
292 const u32 *bitmask;
293 size_t layoutupdate_len;
294 struct page *layoutupdate_page;
295 struct page **layoutupdate_pages;
296 __be32 *start_p;
297 };
298
299 struct nfs4_layoutcommit_res {
300 struct nfs4_sequence_res seq_res;
301 struct nfs_fattr *fattr;
302 const struct nfs_server *server;
303 int status;
304 };
305
306 struct nfs4_layoutcommit_data {
307 struct rpc_task task;
308 struct nfs_fattr fattr;
309 struct list_head lseg_list;
310 struct rpc_cred *cred;
311 struct inode *inode;
312 struct nfs4_layoutcommit_args args;
313 struct nfs4_layoutcommit_res res;
314 };
315
316 struct nfs4_layoutreturn_args {
317 struct nfs4_sequence_args seq_args;
318 struct pnfs_layout_hdr *layout;
319 struct inode *inode;
320 struct pnfs_layout_range range;
321 nfs4_stateid stateid;
322 __u32 layout_type;
323 struct nfs4_xdr_opaque_data *ld_private;
324 };
325
326 struct nfs4_layoutreturn_res {
327 struct nfs4_sequence_res seq_res;
328 u32 lrs_present;
329 nfs4_stateid stateid;
330 };
331
332 struct nfs4_layoutreturn {
333 struct nfs4_layoutreturn_args args;
334 struct nfs4_layoutreturn_res res;
335 struct rpc_cred *cred;
336 struct nfs_client *clp;
337 struct inode *inode;
338 int rpc_status;
339 struct nfs4_xdr_opaque_data ld_private;
340 };
341
342 #define PNFS_LAYOUTSTATS_MAXSIZE 256
343
344 struct nfs42_layoutstat_args;
345 struct nfs42_layoutstat_devinfo;
346 typedef void (*layoutstats_encode_t)(struct xdr_stream *,
347 struct nfs42_layoutstat_args *,
348 struct nfs42_layoutstat_devinfo *);
349
350 /* Per file per deviceid layoutstats */
351 struct nfs42_layoutstat_devinfo {
352 struct nfs4_deviceid dev_id;
353 __u64 offset;
354 __u64 length;
355 __u64 read_count;
356 __u64 read_bytes;
357 __u64 write_count;
358 __u64 write_bytes;
359 __u32 layout_type;
360 struct nfs4_xdr_opaque_data ld_private;
361 };
362
363 struct nfs42_layoutstat_args {
364 struct nfs4_sequence_args seq_args;
365 struct nfs_fh *fh;
366 struct inode *inode;
367 nfs4_stateid stateid;
368 int num_dev;
369 struct nfs42_layoutstat_devinfo *devinfo;
370 };
371
372 struct nfs42_layoutstat_res {
373 struct nfs4_sequence_res seq_res;
374 int num_dev;
375 int rpc_status;
376 };
377
378 struct nfs42_layoutstat_data {
379 struct inode *inode;
380 struct nfs42_layoutstat_args args;
381 struct nfs42_layoutstat_res res;
382 };
383
384 struct nfs42_clone_args {
385 struct nfs4_sequence_args seq_args;
386 struct nfs_fh *src_fh;
387 struct nfs_fh *dst_fh;
388 nfs4_stateid src_stateid;
389 nfs4_stateid dst_stateid;
390 __u64 src_offset;
391 __u64 dst_offset;
392 __u64 count;
393 const u32 *dst_bitmask;
394 };
395
396 struct nfs42_clone_res {
397 struct nfs4_sequence_res seq_res;
398 unsigned int rpc_status;
399 struct nfs_fattr *dst_fattr;
400 const struct nfs_server *server;
401 };
402
403 struct stateowner_id {
404 __u64 create_time;
405 __u32 uniquifier;
406 };
407
408 /*
409 * Arguments to the open call.
410 */
411 struct nfs_openargs {
412 struct nfs4_sequence_args seq_args;
413 const struct nfs_fh * fh;
414 struct nfs_seqid * seqid;
415 int open_flags;
416 fmode_t fmode;
417 u32 share_access;
418 u32 access;
419 __u64 clientid;
420 struct stateowner_id id;
421 union {
422 struct {
423 struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */
424 nfs4_verifier verifier; /* EXCLUSIVE */
425 };
426 nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
427 fmode_t delegation_type; /* CLAIM_PREVIOUS */
428 } u;
429 const struct qstr * name;
430 const struct nfs_server *server; /* Needed for ID mapping */
431 const u32 * bitmask;
432 const u32 * open_bitmap;
433 enum open_claim_type4 claim;
434 enum createmode4 createmode;
435 const struct nfs4_label *label;
436 umode_t umask;
437 };
438
439 struct nfs_openres {
440 struct nfs4_sequence_res seq_res;
441 nfs4_stateid stateid;
442 struct nfs_fh fh;
443 struct nfs4_change_info cinfo;
444 __u32 rflags;
445 struct nfs_fattr * f_attr;
446 struct nfs4_label *f_label;
447 struct nfs_seqid * seqid;
448 const struct nfs_server *server;
449 fmode_t delegation_type;
450 nfs4_stateid delegation;
451 unsigned long pagemod_limit;
452 __u32 do_recall;
453 __u32 attrset[NFS4_BITMAP_SIZE];
454 struct nfs4_string *owner;
455 struct nfs4_string *group_owner;
456 __u32 access_request;
457 __u32 access_supported;
458 __u32 access_result;
459 };
460
461 /*
462 * Arguments to the open_confirm call.
463 */
464 struct nfs_open_confirmargs {
465 struct nfs4_sequence_args seq_args;
466 const struct nfs_fh * fh;
467 nfs4_stateid * stateid;
468 struct nfs_seqid * seqid;
469 };
470
471 struct nfs_open_confirmres {
472 struct nfs4_sequence_res seq_res;
473 nfs4_stateid stateid;
474 struct nfs_seqid * seqid;
475 };
476
477 /*
478 * Arguments to the close call.
479 */
480 struct nfs_closeargs {
481 struct nfs4_sequence_args seq_args;
482 struct nfs_fh * fh;
483 nfs4_stateid stateid;
484 struct nfs_seqid * seqid;
485 fmode_t fmode;
486 u32 share_access;
487 const u32 * bitmask;
488 struct nfs4_layoutreturn_args *lr_args;
489 };
490
491 struct nfs_closeres {
492 struct nfs4_sequence_res seq_res;
493 nfs4_stateid stateid;
494 struct nfs_fattr * fattr;
495 struct nfs_seqid * seqid;
496 const struct nfs_server *server;
497 struct nfs4_layoutreturn_res *lr_res;
498 int lr_ret;
499 };
500 /*
501 * * Arguments to the lock,lockt, and locku call.
502 * */
503 struct nfs_lowner {
504 __u64 clientid;
505 __u64 id;
506 dev_t s_dev;
507 };
508
509 struct nfs_lock_args {
510 struct nfs4_sequence_args seq_args;
511 struct nfs_fh * fh;
512 struct file_lock * fl;
513 struct nfs_seqid * lock_seqid;
514 nfs4_stateid lock_stateid;
515 struct nfs_seqid * open_seqid;
516 nfs4_stateid open_stateid;
517 struct nfs_lowner lock_owner;
518 unsigned char block : 1;
519 unsigned char reclaim : 1;
520 unsigned char new_lock : 1;
521 unsigned char new_lock_owner : 1;
522 };
523
524 struct nfs_lock_res {
525 struct nfs4_sequence_res seq_res;
526 nfs4_stateid stateid;
527 struct nfs_seqid * lock_seqid;
528 struct nfs_seqid * open_seqid;
529 };
530
531 struct nfs_locku_args {
532 struct nfs4_sequence_args seq_args;
533 struct nfs_fh * fh;
534 struct file_lock * fl;
535 struct nfs_seqid * seqid;
536 nfs4_stateid stateid;
537 };
538
539 struct nfs_locku_res {
540 struct nfs4_sequence_res seq_res;
541 nfs4_stateid stateid;
542 struct nfs_seqid * seqid;
543 };
544
545 struct nfs_lockt_args {
546 struct nfs4_sequence_args seq_args;
547 struct nfs_fh * fh;
548 struct file_lock * fl;
549 struct nfs_lowner lock_owner;
550 };
551
552 struct nfs_lockt_res {
553 struct nfs4_sequence_res seq_res;
554 struct file_lock * denied; /* LOCK, LOCKT failed */
555 };
556
557 struct nfs_release_lockowner_args {
558 struct nfs4_sequence_args seq_args;
559 struct nfs_lowner lock_owner;
560 };
561
562 struct nfs_release_lockowner_res {
563 struct nfs4_sequence_res seq_res;
564 };
565
566 struct nfs4_delegreturnargs {
567 struct nfs4_sequence_args seq_args;
568 const struct nfs_fh *fhandle;
569 const nfs4_stateid *stateid;
570 const u32 * bitmask;
571 struct nfs4_layoutreturn_args *lr_args;
572 };
573
574 struct nfs4_delegreturnres {
575 struct nfs4_sequence_res seq_res;
576 struct nfs_fattr * fattr;
577 struct nfs_server *server;
578 struct nfs4_layoutreturn_res *lr_res;
579 int lr_ret;
580 };
581
582 /*
583 * Arguments to the write call.
584 */
585 struct nfs_write_verifier {
586 char data[8];
587 };
588
589 struct nfs_writeverf {
590 struct nfs_write_verifier verifier;
591 enum nfs3_stable_how committed;
592 };
593
594 /*
595 * Arguments shared by the read and write call.
596 */
597 struct nfs_pgio_args {
598 struct nfs4_sequence_args seq_args;
599 struct nfs_fh * fh;
600 struct nfs_open_context *context;
601 struct nfs_lock_context *lock_context;
602 nfs4_stateid stateid;
603 __u64 offset;
604 __u32 count;
605 unsigned int pgbase;
606 struct page ** pages;
607 const u32 * bitmask; /* used by write */
608 enum nfs3_stable_how stable; /* used by write */
609 };
610
611 struct nfs_pgio_res {
612 struct nfs4_sequence_res seq_res;
613 struct nfs_fattr * fattr;
614 __u32 count;
615 __u32 op_status;
616 int eof; /* used by read */
617 struct nfs_writeverf * verf; /* used by write */
618 const struct nfs_server *server; /* used by write */
619
620 };
621
622 /*
623 * Arguments to the commit call.
624 */
625 struct nfs_commitargs {
626 struct nfs4_sequence_args seq_args;
627 struct nfs_fh *fh;
628 __u64 offset;
629 __u32 count;
630 const u32 *bitmask;
631 };
632
633 struct nfs_commitres {
634 struct nfs4_sequence_res seq_res;
635 __u32 op_status;
636 struct nfs_fattr *fattr;
637 struct nfs_writeverf *verf;
638 const struct nfs_server *server;
639 };
640
641 /*
642 * Common arguments to the unlink call
643 */
644 struct nfs_removeargs {
645 struct nfs4_sequence_args seq_args;
646 const struct nfs_fh *fh;
647 struct qstr name;
648 };
649
650 struct nfs_removeres {
651 struct nfs4_sequence_res seq_res;
652 struct nfs_server *server;
653 struct nfs_fattr *dir_attr;
654 struct nfs4_change_info cinfo;
655 };
656
657 /*
658 * Common arguments to the rename call
659 */
660 struct nfs_renameargs {
661 struct nfs4_sequence_args seq_args;
662 const struct nfs_fh *old_dir;
663 const struct nfs_fh *new_dir;
664 const struct qstr *old_name;
665 const struct qstr *new_name;
666 };
667
668 struct nfs_renameres {
669 struct nfs4_sequence_res seq_res;
670 struct nfs_server *server;
671 struct nfs4_change_info old_cinfo;
672 struct nfs_fattr *old_fattr;
673 struct nfs4_change_info new_cinfo;
674 struct nfs_fattr *new_fattr;
675 };
676
677 /* parsed sec= options */
678 #define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
679 struct nfs_auth_info {
680 unsigned int flavor_len;
681 rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
682 };
683
684 /*
685 * Argument struct for decode_entry function
686 */
687 struct nfs_entry {
688 __u64 ino;
689 __u64 cookie,
690 prev_cookie;
691 const char * name;
692 unsigned int len;
693 int eof;
694 struct nfs_fh * fh;
695 struct nfs_fattr * fattr;
696 struct nfs4_label *label;
697 unsigned char d_type;
698 struct nfs_server * server;
699 };
700
701 /*
702 * The following types are for NFSv2 only.
703 */
704 struct nfs_sattrargs {
705 struct nfs_fh * fh;
706 struct iattr * sattr;
707 };
708
709 struct nfs_diropargs {
710 struct nfs_fh * fh;
711 const char * name;
712 unsigned int len;
713 };
714
715 struct nfs_createargs {
716 struct nfs_fh * fh;
717 const char * name;
718 unsigned int len;
719 struct iattr * sattr;
720 };
721
722 struct nfs_setattrargs {
723 struct nfs4_sequence_args seq_args;
724 struct nfs_fh * fh;
725 nfs4_stateid stateid;
726 struct iattr * iap;
727 const struct nfs_server * server; /* Needed for name mapping */
728 const u32 * bitmask;
729 const struct nfs4_label *label;
730 };
731
732 struct nfs_setaclargs {
733 struct nfs4_sequence_args seq_args;
734 struct nfs_fh * fh;
735 size_t acl_len;
736 struct page ** acl_pages;
737 };
738
739 struct nfs_setaclres {
740 struct nfs4_sequence_res seq_res;
741 };
742
743 struct nfs_getaclargs {
744 struct nfs4_sequence_args seq_args;
745 struct nfs_fh * fh;
746 size_t acl_len;
747 struct page ** acl_pages;
748 };
749
750 /* getxattr ACL interface flags */
751 #define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
752 struct nfs_getaclres {
753 struct nfs4_sequence_res seq_res;
754 size_t acl_len;
755 size_t acl_data_offset;
756 int acl_flags;
757 struct page * acl_scratch;
758 };
759
760 struct nfs_setattrres {
761 struct nfs4_sequence_res seq_res;
762 struct nfs_fattr * fattr;
763 struct nfs4_label *label;
764 const struct nfs_server * server;
765 };
766
767 struct nfs_linkargs {
768 struct nfs_fh * fromfh;
769 struct nfs_fh * tofh;
770 const char * toname;
771 unsigned int tolen;
772 };
773
774 struct nfs_symlinkargs {
775 struct nfs_fh * fromfh;
776 const char * fromname;
777 unsigned int fromlen;
778 struct page ** pages;
779 unsigned int pathlen;
780 struct iattr * sattr;
781 };
782
783 struct nfs_readdirargs {
784 struct nfs_fh * fh;
785 __u32 cookie;
786 unsigned int count;
787 struct page ** pages;
788 };
789
790 struct nfs3_getaclargs {
791 struct nfs_fh * fh;
792 int mask;
793 struct page ** pages;
794 };
795
796 struct nfs3_setaclargs {
797 struct inode * inode;
798 int mask;
799 struct posix_acl * acl_access;
800 struct posix_acl * acl_default;
801 size_t len;
802 unsigned int npages;
803 struct page ** pages;
804 };
805
806 struct nfs_diropok {
807 struct nfs_fh * fh;
808 struct nfs_fattr * fattr;
809 };
810
811 struct nfs_readlinkargs {
812 struct nfs_fh * fh;
813 unsigned int pgbase;
814 unsigned int pglen;
815 struct page ** pages;
816 };
817
818 struct nfs3_sattrargs {
819 struct nfs_fh * fh;
820 struct iattr * sattr;
821 unsigned int guard;
822 struct timespec guardtime;
823 };
824
825 struct nfs3_diropargs {
826 struct nfs_fh * fh;
827 const char * name;
828 unsigned int len;
829 };
830
831 struct nfs3_accessargs {
832 struct nfs_fh * fh;
833 __u32 access;
834 };
835
836 struct nfs3_createargs {
837 struct nfs_fh * fh;
838 const char * name;
839 unsigned int len;
840 struct iattr * sattr;
841 enum nfs3_createmode createmode;
842 __be32 verifier[2];
843 };
844
845 struct nfs3_mkdirargs {
846 struct nfs_fh * fh;
847 const char * name;
848 unsigned int len;
849 struct iattr * sattr;
850 };
851
852 struct nfs3_symlinkargs {
853 struct nfs_fh * fromfh;
854 const char * fromname;
855 unsigned int fromlen;
856 struct page ** pages;
857 unsigned int pathlen;
858 struct iattr * sattr;
859 };
860
861 struct nfs3_mknodargs {
862 struct nfs_fh * fh;
863 const char * name;
864 unsigned int len;
865 enum nfs3_ftype type;
866 struct iattr * sattr;
867 dev_t rdev;
868 };
869
870 struct nfs3_linkargs {
871 struct nfs_fh * fromfh;
872 struct nfs_fh * tofh;
873 const char * toname;
874 unsigned int tolen;
875 };
876
877 struct nfs3_readdirargs {
878 struct nfs_fh * fh;
879 __u64 cookie;
880 __be32 verf[2];
881 bool plus;
882 unsigned int count;
883 struct page ** pages;
884 };
885
886 struct nfs3_diropres {
887 struct nfs_fattr * dir_attr;
888 struct nfs_fh * fh;
889 struct nfs_fattr * fattr;
890 };
891
892 struct nfs3_accessres {
893 struct nfs_fattr * fattr;
894 __u32 access;
895 };
896
897 struct nfs3_readlinkargs {
898 struct nfs_fh * fh;
899 unsigned int pgbase;
900 unsigned int pglen;
901 struct page ** pages;
902 };
903
904 struct nfs3_linkres {
905 struct nfs_fattr * dir_attr;
906 struct nfs_fattr * fattr;
907 };
908
909 struct nfs3_readdirres {
910 struct nfs_fattr * dir_attr;
911 __be32 * verf;
912 bool plus;
913 };
914
915 struct nfs3_getaclres {
916 struct nfs_fattr * fattr;
917 int mask;
918 unsigned int acl_access_count;
919 unsigned int acl_default_count;
920 struct posix_acl * acl_access;
921 struct posix_acl * acl_default;
922 };
923
924 #if IS_ENABLED(CONFIG_NFS_V4)
925
926 typedef u64 clientid4;
927
928 struct nfs4_accessargs {
929 struct nfs4_sequence_args seq_args;
930 const struct nfs_fh * fh;
931 const u32 * bitmask;
932 u32 access;
933 };
934
935 struct nfs4_accessres {
936 struct nfs4_sequence_res seq_res;
937 const struct nfs_server * server;
938 struct nfs_fattr * fattr;
939 u32 supported;
940 u32 access;
941 };
942
943 struct nfs4_create_arg {
944 struct nfs4_sequence_args seq_args;
945 u32 ftype;
946 union {
947 struct {
948 struct page ** pages;
949 unsigned int len;
950 } symlink; /* NF4LNK */
951 struct {
952 u32 specdata1;
953 u32 specdata2;
954 } device; /* NF4BLK, NF4CHR */
955 } u;
956 const struct qstr * name;
957 const struct nfs_server * server;
958 const struct iattr * attrs;
959 const struct nfs_fh * dir_fh;
960 const u32 * bitmask;
961 const struct nfs4_label *label;
962 umode_t umask;
963 };
964
965 struct nfs4_create_res {
966 struct nfs4_sequence_res seq_res;
967 const struct nfs_server * server;
968 struct nfs_fh * fh;
969 struct nfs_fattr * fattr;
970 struct nfs4_label *label;
971 struct nfs4_change_info dir_cinfo;
972 };
973
974 struct nfs4_fsinfo_arg {
975 struct nfs4_sequence_args seq_args;
976 const struct nfs_fh * fh;
977 const u32 * bitmask;
978 };
979
980 struct nfs4_fsinfo_res {
981 struct nfs4_sequence_res seq_res;
982 struct nfs_fsinfo *fsinfo;
983 };
984
985 struct nfs4_getattr_arg {
986 struct nfs4_sequence_args seq_args;
987 const struct nfs_fh * fh;
988 const u32 * bitmask;
989 };
990
991 struct nfs4_getattr_res {
992 struct nfs4_sequence_res seq_res;
993 const struct nfs_server * server;
994 struct nfs_fattr * fattr;
995 struct nfs4_label *label;
996 };
997
998 struct nfs4_link_arg {
999 struct nfs4_sequence_args seq_args;
1000 const struct nfs_fh * fh;
1001 const struct nfs_fh * dir_fh;
1002 const struct qstr * name;
1003 const u32 * bitmask;
1004 };
1005
1006 struct nfs4_link_res {
1007 struct nfs4_sequence_res seq_res;
1008 const struct nfs_server * server;
1009 struct nfs_fattr * fattr;
1010 struct nfs4_label *label;
1011 struct nfs4_change_info cinfo;
1012 struct nfs_fattr * dir_attr;
1013 };
1014
1015 struct nfs4_lookup_arg {
1016 struct nfs4_sequence_args seq_args;
1017 const struct nfs_fh * dir_fh;
1018 const struct qstr * name;
1019 const u32 * bitmask;
1020 };
1021
1022 struct nfs4_lookup_res {
1023 struct nfs4_sequence_res seq_res;
1024 const struct nfs_server * server;
1025 struct nfs_fattr * fattr;
1026 struct nfs_fh * fh;
1027 struct nfs4_label *label;
1028 };
1029
1030 struct nfs4_lookupp_arg {
1031 struct nfs4_sequence_args seq_args;
1032 const struct nfs_fh *fh;
1033 const u32 *bitmask;
1034 };
1035
1036 struct nfs4_lookupp_res {
1037 struct nfs4_sequence_res seq_res;
1038 const struct nfs_server *server;
1039 struct nfs_fattr *fattr;
1040 struct nfs_fh *fh;
1041 struct nfs4_label *label;
1042 };
1043
1044 struct nfs4_lookup_root_arg {
1045 struct nfs4_sequence_args seq_args;
1046 const u32 * bitmask;
1047 };
1048
1049 struct nfs4_pathconf_arg {
1050 struct nfs4_sequence_args seq_args;
1051 const struct nfs_fh * fh;
1052 const u32 * bitmask;
1053 };
1054
1055 struct nfs4_pathconf_res {
1056 struct nfs4_sequence_res seq_res;
1057 struct nfs_pathconf *pathconf;
1058 };
1059
1060 struct nfs4_readdir_arg {
1061 struct nfs4_sequence_args seq_args;
1062 const struct nfs_fh * fh;
1063 u64 cookie;
1064 nfs4_verifier verifier;
1065 u32 count;
1066 struct page ** pages; /* zero-copy data */
1067 unsigned int pgbase; /* zero-copy data */
1068 const u32 * bitmask;
1069 bool plus;
1070 };
1071
1072 struct nfs4_readdir_res {
1073 struct nfs4_sequence_res seq_res;
1074 nfs4_verifier verifier;
1075 unsigned int pgbase;
1076 };
1077
1078 struct nfs4_readlink {
1079 struct nfs4_sequence_args seq_args;
1080 const struct nfs_fh * fh;
1081 unsigned int pgbase;
1082 unsigned int pglen; /* zero-copy data */
1083 struct page ** pages; /* zero-copy data */
1084 };
1085
1086 struct nfs4_readlink_res {
1087 struct nfs4_sequence_res seq_res;
1088 };
1089
1090 struct nfs4_setclientid {
1091 const nfs4_verifier * sc_verifier;
1092 u32 sc_prog;
1093 unsigned int sc_netid_len;
1094 char sc_netid[RPCBIND_MAXNETIDLEN + 1];
1095 unsigned int sc_uaddr_len;
1096 char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
1097 struct nfs_client *sc_clnt;
1098 struct rpc_cred *sc_cred;
1099 };
1100
1101 struct nfs4_setclientid_res {
1102 u64 clientid;
1103 nfs4_verifier confirm;
1104 };
1105
1106 struct nfs4_statfs_arg {
1107 struct nfs4_sequence_args seq_args;
1108 const struct nfs_fh * fh;
1109 const u32 * bitmask;
1110 };
1111
1112 struct nfs4_statfs_res {
1113 struct nfs4_sequence_res seq_res;
1114 struct nfs_fsstat *fsstat;
1115 };
1116
1117 struct nfs4_server_caps_arg {
1118 struct nfs4_sequence_args seq_args;
1119 struct nfs_fh *fhandle;
1120 const u32 * bitmask;
1121 };
1122
1123 struct nfs4_server_caps_res {
1124 struct nfs4_sequence_res seq_res;
1125 u32 attr_bitmask[3];
1126 u32 exclcreat_bitmask[3];
1127 u32 acl_bitmask;
1128 u32 has_links;
1129 u32 has_symlinks;
1130 u32 fh_expire_type;
1131 };
1132
1133 #define NFS4_PATHNAME_MAXCOMPONENTS 512
1134 struct nfs4_pathname {
1135 unsigned int ncomponents;
1136 struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
1137 };
1138
1139 #define NFS4_FS_LOCATION_MAXSERVERS 10
1140 struct nfs4_fs_location {
1141 unsigned int nservers;
1142 struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
1143 struct nfs4_pathname rootpath;
1144 };
1145
1146 #define NFS4_FS_LOCATIONS_MAXENTRIES 10
1147 struct nfs4_fs_locations {
1148 struct nfs_fattr fattr;
1149 const struct nfs_server *server;
1150 struct nfs4_pathname fs_path;
1151 int nlocations;
1152 struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
1153 };
1154
1155 struct nfs4_fs_locations_arg {
1156 struct nfs4_sequence_args seq_args;
1157 const struct nfs_fh *dir_fh;
1158 const struct nfs_fh *fh;
1159 const struct qstr *name;
1160 struct page *page;
1161 const u32 *bitmask;
1162 clientid4 clientid;
1163 unsigned char migration:1, renew:1;
1164 };
1165
1166 struct nfs4_fs_locations_res {
1167 struct nfs4_sequence_res seq_res;
1168 struct nfs4_fs_locations *fs_locations;
1169 unsigned char migration:1, renew:1;
1170 };
1171
1172 struct nfs4_secinfo4 {
1173 u32 flavor;
1174 struct rpcsec_gss_info flavor_info;
1175 };
1176
1177 struct nfs4_secinfo_flavors {
1178 unsigned int num_flavors;
1179 struct nfs4_secinfo4 flavors[0];
1180 };
1181
1182 struct nfs4_secinfo_arg {
1183 struct nfs4_sequence_args seq_args;
1184 const struct nfs_fh *dir_fh;
1185 const struct qstr *name;
1186 };
1187
1188 struct nfs4_secinfo_res {
1189 struct nfs4_sequence_res seq_res;
1190 struct nfs4_secinfo_flavors *flavors;
1191 };
1192
1193 struct nfs4_fsid_present_arg {
1194 struct nfs4_sequence_args seq_args;
1195 const struct nfs_fh *fh;
1196 clientid4 clientid;
1197 unsigned char renew:1;
1198 };
1199
1200 struct nfs4_fsid_present_res {
1201 struct nfs4_sequence_res seq_res;
1202 struct nfs_fh *fh;
1203 unsigned char renew:1;
1204 };
1205
1206 #endif /* CONFIG_NFS_V4 */
1207
1208 struct nfstime4 {
1209 u64 seconds;
1210 u32 nseconds;
1211 };
1212
1213 #ifdef CONFIG_NFS_V4_1
1214
1215 struct pnfs_commit_bucket {
1216 struct list_head written;
1217 struct list_head committing;
1218 struct pnfs_layout_segment *wlseg;
1219 struct pnfs_layout_segment *clseg;
1220 struct nfs_writeverf direct_verf;
1221 };
1222
1223 struct pnfs_ds_commit_info {
1224 int nwritten;
1225 int ncommitting;
1226 int nbuckets;
1227 struct pnfs_commit_bucket *buckets;
1228 };
1229
1230 struct nfs41_state_protection {
1231 u32 how;
1232 struct nfs4_op_map enforce;
1233 struct nfs4_op_map allow;
1234 };
1235
1236 struct nfs41_exchange_id_args {
1237 struct nfs_client *client;
1238 nfs4_verifier verifier;
1239 u32 flags;
1240 struct nfs41_state_protection state_protect;
1241 };
1242
1243 struct nfs41_server_owner {
1244 uint64_t minor_id;
1245 uint32_t major_id_sz;
1246 char major_id[NFS4_OPAQUE_LIMIT];
1247 };
1248
1249 struct nfs41_server_scope {
1250 uint32_t server_scope_sz;
1251 char server_scope[NFS4_OPAQUE_LIMIT];
1252 };
1253
1254 struct nfs41_impl_id {
1255 char domain[NFS4_OPAQUE_LIMIT + 1];
1256 char name[NFS4_OPAQUE_LIMIT + 1];
1257 struct nfstime4 date;
1258 };
1259
1260 struct nfs41_bind_conn_to_session_args {
1261 struct nfs_client *client;
1262 struct nfs4_sessionid sessionid;
1263 u32 dir;
1264 bool use_conn_in_rdma_mode;
1265 };
1266
1267 struct nfs41_bind_conn_to_session_res {
1268 struct nfs4_sessionid sessionid;
1269 u32 dir;
1270 bool use_conn_in_rdma_mode;
1271 };
1272
1273 struct nfs41_exchange_id_res {
1274 u64 clientid;
1275 u32 seqid;
1276 u32 flags;
1277 struct nfs41_server_owner *server_owner;
1278 struct nfs41_server_scope *server_scope;
1279 struct nfs41_impl_id *impl_id;
1280 struct nfs41_state_protection state_protect;
1281 };
1282
1283 struct nfs41_create_session_args {
1284 struct nfs_client *client;
1285 u64 clientid;
1286 uint32_t seqid;
1287 uint32_t flags;
1288 uint32_t cb_program;
1289 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1290 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1291 };
1292
1293 struct nfs41_create_session_res {
1294 struct nfs4_sessionid sessionid;
1295 uint32_t seqid;
1296 uint32_t flags;
1297 struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
1298 struct nfs4_channel_attrs bc_attrs; /* Back Channel */
1299 };
1300
1301 struct nfs41_reclaim_complete_args {
1302 struct nfs4_sequence_args seq_args;
1303 /* In the future extend to include curr_fh for use with migration */
1304 unsigned char one_fs:1;
1305 };
1306
1307 struct nfs41_reclaim_complete_res {
1308 struct nfs4_sequence_res seq_res;
1309 };
1310
1311 #define SECINFO_STYLE_CURRENT_FH 0
1312 #define SECINFO_STYLE_PARENT 1
1313 struct nfs41_secinfo_no_name_args {
1314 struct nfs4_sequence_args seq_args;
1315 int style;
1316 };
1317
1318 struct nfs41_test_stateid_args {
1319 struct nfs4_sequence_args seq_args;
1320 nfs4_stateid *stateid;
1321 };
1322
1323 struct nfs41_test_stateid_res {
1324 struct nfs4_sequence_res seq_res;
1325 unsigned int status;
1326 };
1327
1328 struct nfs41_free_stateid_args {
1329 struct nfs4_sequence_args seq_args;
1330 nfs4_stateid stateid;
1331 };
1332
1333 struct nfs41_free_stateid_res {
1334 struct nfs4_sequence_res seq_res;
1335 unsigned int status;
1336 };
1337
1338 static inline void
1339 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1340 {
1341 kfree(cinfo->buckets);
1342 }
1343
1344 #else
1345
1346 struct pnfs_ds_commit_info {
1347 };
1348
1349 static inline void
1350 nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
1351 {
1352 }
1353
1354 #endif /* CONFIG_NFS_V4_1 */
1355
1356 #ifdef CONFIG_NFS_V4_2
1357 struct nfs42_falloc_args {
1358 struct nfs4_sequence_args seq_args;
1359
1360 struct nfs_fh *falloc_fh;
1361 nfs4_stateid falloc_stateid;
1362 u64 falloc_offset;
1363 u64 falloc_length;
1364 const u32 *falloc_bitmask;
1365 };
1366
1367 struct nfs42_falloc_res {
1368 struct nfs4_sequence_res seq_res;
1369 unsigned int status;
1370
1371 struct nfs_fattr *falloc_fattr;
1372 const struct nfs_server *falloc_server;
1373 };
1374
1375 struct nfs42_copy_args {
1376 struct nfs4_sequence_args seq_args;
1377
1378 struct nfs_fh *src_fh;
1379 nfs4_stateid src_stateid;
1380 u64 src_pos;
1381
1382 struct nfs_fh *dst_fh;
1383 nfs4_stateid dst_stateid;
1384 u64 dst_pos;
1385
1386 u64 count;
1387 };
1388
1389 struct nfs42_write_res {
1390 u64 count;
1391 struct nfs_writeverf verifier;
1392 };
1393
1394 struct nfs42_copy_res {
1395 struct nfs4_sequence_res seq_res;
1396 struct nfs42_write_res write_res;
1397 bool consecutive;
1398 bool synchronous;
1399 struct nfs_commitres commit_res;
1400 };
1401
1402 struct nfs42_seek_args {
1403 struct nfs4_sequence_args seq_args;
1404
1405 struct nfs_fh *sa_fh;
1406 nfs4_stateid sa_stateid;
1407 u64 sa_offset;
1408 u32 sa_what;
1409 };
1410
1411 struct nfs42_seek_res {
1412 struct nfs4_sequence_res seq_res;
1413 unsigned int status;
1414
1415 u32 sr_eof;
1416 u64 sr_offset;
1417 };
1418 #endif
1419
1420 struct nfs_page;
1421
1422 #define NFS_PAGEVEC_SIZE (8U)
1423
1424 struct nfs_page_array {
1425 struct page **pagevec;
1426 unsigned int npages; /* Max length of pagevec */
1427 struct page *page_array[NFS_PAGEVEC_SIZE];
1428 };
1429
1430 /* used as flag bits in nfs_pgio_header */
1431 enum {
1432 NFS_IOHDR_ERROR = 0,
1433 NFS_IOHDR_EOF,
1434 NFS_IOHDR_REDO,
1435 NFS_IOHDR_STAT,
1436 };
1437
1438 struct nfs_io_completion;
1439 struct nfs_pgio_header {
1440 struct inode *inode;
1441 struct rpc_cred *cred;
1442 struct list_head pages;
1443 struct nfs_page *req;
1444 struct nfs_writeverf verf; /* Used for writes */
1445 fmode_t rw_mode;
1446 struct pnfs_layout_segment *lseg;
1447 loff_t io_start;
1448 const struct rpc_call_ops *mds_ops;
1449 void (*release) (struct nfs_pgio_header *hdr);
1450 const struct nfs_pgio_completion_ops *completion_ops;
1451 const struct nfs_rw_ops *rw_ops;
1452 struct nfs_io_completion *io_completion;
1453 struct nfs_direct_req *dreq;
1454 spinlock_t lock;
1455 /* fields protected by lock */
1456 int pnfs_error;
1457 int error; /* merge with pnfs_error */
1458 unsigned long good_bytes; /* boundary of good data */
1459 unsigned long flags;
1460
1461 /*
1462 * rpc data
1463 */
1464 struct rpc_task task;
1465 struct nfs_fattr fattr;
1466 struct nfs_pgio_args args; /* argument struct */
1467 struct nfs_pgio_res res; /* result struct */
1468 unsigned long timestamp; /* For lease renewal */
1469 int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
1470 __u64 mds_offset; /* Filelayout dense stripe */
1471 struct nfs_page_array page_array;
1472 struct nfs_client *ds_clp; /* pNFS data server */
1473 int ds_commit_idx; /* ds index if ds_clp is set */
1474 int pgio_mirror_idx;/* mirror index in pgio layer */
1475 };
1476
1477 struct nfs_mds_commit_info {
1478 atomic_t rpcs_out;
1479 unsigned long ncommit;
1480 struct list_head list;
1481 };
1482
1483 struct nfs_commit_info;
1484 struct nfs_commit_data;
1485 struct nfs_inode;
1486 struct nfs_commit_completion_ops {
1487 void (*completion) (struct nfs_commit_data *data);
1488 void (*resched_write) (struct nfs_commit_info *, struct nfs_page *);
1489 };
1490
1491 struct nfs_commit_info {
1492 struct inode *inode; /* Needed for inode->i_lock */
1493 struct nfs_mds_commit_info *mds;
1494 struct pnfs_ds_commit_info *ds;
1495 struct nfs_direct_req *dreq; /* O_DIRECT request */
1496 const struct nfs_commit_completion_ops *completion_ops;
1497 };
1498
1499 struct nfs_commit_data {
1500 struct rpc_task task;
1501 struct inode *inode;
1502 struct rpc_cred *cred;
1503 struct nfs_fattr fattr;
1504 struct nfs_writeverf verf;
1505 struct list_head pages; /* Coalesced requests we wish to flush */
1506 struct list_head list; /* lists of struct nfs_write_data */
1507 struct nfs_direct_req *dreq; /* O_DIRECT request */
1508 struct nfs_commitargs args; /* argument struct */
1509 struct nfs_commitres res; /* result struct */
1510 struct nfs_open_context *context;
1511 struct pnfs_layout_segment *lseg;
1512 struct nfs_client *ds_clp; /* pNFS data server */
1513 int ds_commit_index;
1514 loff_t lwb;
1515 const struct rpc_call_ops *mds_ops;
1516 const struct nfs_commit_completion_ops *completion_ops;
1517 int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
1518 unsigned long flags;
1519 };
1520
1521 struct nfs_pgio_completion_ops {
1522 void (*error_cleanup)(struct list_head *head);
1523 void (*init_hdr)(struct nfs_pgio_header *hdr);
1524 void (*completion)(struct nfs_pgio_header *hdr);
1525 void (*reschedule_io)(struct nfs_pgio_header *hdr);
1526 };
1527
1528 struct nfs_unlinkdata {
1529 struct nfs_removeargs args;
1530 struct nfs_removeres res;
1531 struct dentry *dentry;
1532 wait_queue_head_t wq;
1533 struct rpc_cred *cred;
1534 struct nfs_fattr dir_attr;
1535 long timeout;
1536 };
1537
1538 struct nfs_renamedata {
1539 struct nfs_renameargs args;
1540 struct nfs_renameres res;
1541 struct rpc_cred *cred;
1542 struct inode *old_dir;
1543 struct dentry *old_dentry;
1544 struct nfs_fattr old_fattr;
1545 struct inode *new_dir;
1546 struct dentry *new_dentry;
1547 struct nfs_fattr new_fattr;
1548 void (*complete)(struct rpc_task *, struct nfs_renamedata *);
1549 long timeout;
1550 bool cancelled;
1551 };
1552
1553 struct nfs_access_entry;
1554 struct nfs_client;
1555 struct rpc_timeout;
1556 struct nfs_subversion;
1557 struct nfs_mount_info;
1558 struct nfs_client_initdata;
1559 struct nfs_pageio_descriptor;
1560
1561 /*
1562 * RPC procedure vector for NFSv2/NFSv3 demuxing
1563 */
1564 struct nfs_rpc_ops {
1565 u32 version; /* Protocol version */
1566 const struct dentry_operations *dentry_ops;
1567 const struct inode_operations *dir_inode_ops;
1568 const struct inode_operations *file_inode_ops;
1569 const struct file_operations *file_ops;
1570 const struct nlmclnt_operations *nlmclnt_ops;
1571
1572 int (*getroot) (struct nfs_server *, struct nfs_fh *,
1573 struct nfs_fsinfo *);
1574 struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
1575 struct nfs_fh *, struct nfs_fattr *);
1576 struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
1577 struct nfs_subversion *);
1578 int (*getattr) (struct nfs_server *, struct nfs_fh *,
1579 struct nfs_fattr *, struct nfs4_label *);
1580 int (*setattr) (struct dentry *, struct nfs_fattr *,
1581 struct iattr *);
1582 int (*lookup) (struct inode *, const struct qstr *,
1583 struct nfs_fh *, struct nfs_fattr *,
1584 struct nfs4_label *);
1585 int (*lookupp) (struct inode *, struct nfs_fh *,
1586 struct nfs_fattr *, struct nfs4_label *);
1587 int (*access) (struct inode *, struct nfs_access_entry *);
1588 int (*readlink)(struct inode *, struct page *, unsigned int,
1589 unsigned int);
1590 int (*create) (struct inode *, struct dentry *,
1591 struct iattr *, int);
1592 int (*remove) (struct inode *, const struct qstr *);
1593 void (*unlink_setup) (struct rpc_message *, struct inode *dir);
1594 void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
1595 int (*unlink_done) (struct rpc_task *, struct inode *);
1596 void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
1597 void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
1598 int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
1599 int (*link) (struct inode *, struct inode *, const struct qstr *);
1600 int (*symlink) (struct inode *, struct dentry *, struct page *,
1601 unsigned int, struct iattr *);
1602 int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
1603 int (*rmdir) (struct inode *, const struct qstr *);
1604 int (*readdir) (struct dentry *, struct rpc_cred *,
1605 u64, struct page **, unsigned int, bool);
1606 int (*mknod) (struct inode *, struct dentry *, struct iattr *,
1607 dev_t);
1608 int (*statfs) (struct nfs_server *, struct nfs_fh *,
1609 struct nfs_fsstat *);
1610 int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
1611 struct nfs_fsinfo *);
1612 int (*pathconf) (struct nfs_server *, struct nfs_fh *,
1613 struct nfs_pathconf *);
1614 int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
1615 int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, bool);
1616 int (*pgio_rpc_prepare)(struct rpc_task *,
1617 struct nfs_pgio_header *);
1618 void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
1619 int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
1620 void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *);
1621 int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
1622 void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
1623 void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
1624 int (*commit_done) (struct rpc_task *, struct nfs_commit_data *);
1625 int (*lock)(struct file *, int, struct file_lock *);
1626 int (*lock_check_bounds)(const struct file_lock *);
1627 void (*clear_acl_cache)(struct inode *);
1628 void (*close_context)(struct nfs_open_context *ctx, int);
1629 struct inode * (*open_context) (struct inode *dir,
1630 struct nfs_open_context *ctx,
1631 int open_flags,
1632 struct iattr *iattr,
1633 int *);
1634 int (*have_delegation)(struct inode *, fmode_t);
1635 int (*return_delegation)(struct inode *);
1636 struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
1637 struct nfs_client *(*init_client) (struct nfs_client *,
1638 const struct nfs_client_initdata *);
1639 void (*free_client) (struct nfs_client *);
1640 struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
1641 struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
1642 struct nfs_fattr *, rpc_authflavor_t);
1643 };
1644
1645 /*
1646 * NFS_CALL(getattr, inode, (fattr));
1647 * into
1648 * NFS_PROTO(inode)->getattr(fattr);
1649 */
1650 #define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
1651
1652 /*
1653 * Function vectors etc. for the NFS client
1654 */
1655 extern const struct nfs_rpc_ops nfs_v2_clientops;
1656 extern const struct nfs_rpc_ops nfs_v3_clientops;
1657 extern const struct nfs_rpc_ops nfs_v4_clientops;
1658 extern const struct rpc_version nfs_version2;
1659 extern const struct rpc_version nfs_version3;
1660 extern const struct rpc_version nfs_version4;
1661
1662 extern const struct rpc_version nfsacl_version3;
1663 extern const struct rpc_program nfsacl_program;
1664
1665 #endif
Ubuntu Artful kernel mirror