Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Copyright (c) 2001 The Regents of the University of Michigan. |
3 | * All rights reserved. | |
4 | * | |
5 | * Kendrick Smith <kmsmith@umich.edu> | |
6 | * Andy Adamson <andros@umich.edu> | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * 2. Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in the | |
16 | * documentation and/or other materials provided with the distribution. | |
17 | * 3. Neither the name of the University nor the names of its | |
18 | * contributors may be used to endorse or promote products derived | |
19 | * from this software without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
22 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
23 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
24 | * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | |
28 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
29 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
30 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
31 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | * | |
33 | */ | |
34 | ||
35 | #ifndef _NFSD4_STATE_H | |
36 | #define _NFSD4_STATE_H | |
37 | ||
38c2f4b1 | 38 | #include <linux/idr.h> |
19cf5c02 | 39 | #include <linux/sunrpc/svc_xprt.h> |
72579ac9 | 40 | #include <linux/nfsd/nfsfh.h> |
1557aca7 | 41 | #include "nfsfh.h" |
1da177e4 | 42 | |
1da177e4 LT |
43 | typedef struct { |
44 | u32 cl_boot; | |
45 | u32 cl_id; | |
46 | } clientid_t; | |
47 | ||
48 | typedef struct { | |
d3b313a4 BF |
49 | clientid_t so_clid; |
50 | u32 so_id; | |
1da177e4 LT |
51 | } stateid_opaque_t; |
52 | ||
53 | typedef struct { | |
54 | u32 si_generation; | |
55 | stateid_opaque_t si_opaque; | |
56 | } stateid_t; | |
1da177e4 | 57 | |
8c10cbdb BH |
58 | #define STATEID_FMT "(%08x/%08x/%08x/%08x)" |
59 | #define STATEID_VAL(s) \ | |
d3b313a4 BF |
60 | (s)->si_opaque.so_clid.cl_boot, \ |
61 | (s)->si_opaque.so_clid.cl_id, \ | |
62 | (s)->si_opaque.so_id, \ | |
8c10cbdb BH |
63 | (s)->si_generation |
64 | ||
227f98d9 | 65 | struct nfsd4_callback { |
fb003923 BF |
66 | void *cb_op; |
67 | struct nfs4_client *cb_clp; | |
5ce8ba25 | 68 | struct list_head cb_per_client; |
fb003923 | 69 | u32 cb_minorversion; |
5878453d BF |
70 | struct rpc_message cb_msg; |
71 | const struct rpc_call_ops *cb_ops; | |
b5a1a81e | 72 | struct work_struct cb_work; |
5ce8ba25 | 73 | bool cb_done; |
227f98d9 BF |
74 | }; |
75 | ||
d5477a8d BF |
76 | struct nfs4_stid { |
77 | #define NFS4_OPEN_STID 1 | |
78 | #define NFS4_LOCK_STID 2 | |
79 | #define NFS4_DELEG_STID 4 | |
f7a4d872 BF |
80 | /* For an open stateid kept around *only* to process close replays: */ |
81 | #define NFS4_CLOSED_STID 8 | |
82 | unsigned char sc_type; | |
d5477a8d | 83 | stateid_t sc_stateid; |
2a74aba7 | 84 | struct nfs4_client *sc_client; |
d5477a8d BF |
85 | }; |
86 | ||
1da177e4 | 87 | struct nfs4_delegation { |
996e0938 | 88 | struct nfs4_stid dl_stid; /* must be first field */ |
ea1da636 N |
89 | struct list_head dl_perfile; |
90 | struct list_head dl_perclnt; | |
1da177e4 LT |
91 | struct list_head dl_recall_lru; /* delegation recalled */ |
92 | atomic_t dl_count; /* ref count */ | |
1da177e4 | 93 | struct nfs4_file *dl_file; |
1da177e4 LT |
94 | u32 dl_type; |
95 | time_t dl_time; | |
b53d40c5 | 96 | /* For recall: */ |
b53d40c5 | 97 | struct knfsd_fh dl_fh; |
3aea09dc | 98 | int dl_retries; |
227f98d9 | 99 | struct nfsd4_callback dl_recall; |
1da177e4 LT |
100 | }; |
101 | ||
1da177e4 | 102 | /* client delegation callback info */ |
c237dc03 | 103 | struct nfs4_cb_conn { |
1da177e4 | 104 | /* SETCLIENTID info */ |
aa9a4ec7 | 105 | struct sockaddr_storage cb_addr; |
6f3d772f | 106 | struct sockaddr_storage cb_saddr; |
aa9a4ec7 | 107 | size_t cb_addrlen; |
8b5ce5cd BF |
108 | u32 cb_prog; /* used only in 4.0 case; |
109 | per-session otherwise */ | |
ab52ae6d | 110 | u32 cb_ident; /* minorversion 0 only */ |
2bf23875 | 111 | struct svc_xprt *cb_xprt; /* minorversion 1 only */ |
1da177e4 LT |
112 | }; |
113 | ||
f459e453 BF |
114 | static inline struct nfs4_delegation *delegstateid(struct nfs4_stid *s) |
115 | { | |
116 | return container_of(s, struct nfs4_delegation, dl_stid); | |
117 | } | |
118 | ||
a649637c AA |
119 | /* Maximum number of slots per session. 160 is useful for long haul TCP */ |
120 | #define NFSD_MAX_SLOTS_PER_SESSION 160 | |
ec6b5d7b AA |
121 | /* Maximum number of operations per session compound */ |
122 | #define NFSD_MAX_OPS_PER_COMPOUND 16 | |
557ce264 AA |
123 | /* Maximum session per slot cache size */ |
124 | #define NFSD_SLOT_CACHE_SIZE 1024 | |
a649637c AA |
125 | /* Maximum number of NFSD_SLOT_CACHE_SIZE slots per session */ |
126 | #define NFSD_CACHE_SIZE_SLOTS_PER_SESSION 32 | |
127 | #define NFSD_MAX_MEM_PER_SESSION \ | |
128 | (NFSD_CACHE_SIZE_SLOTS_PER_SESSION * NFSD_SLOT_CACHE_SIZE) | |
074fe897 | 129 | |
7116ed6b | 130 | struct nfsd4_slot { |
557ce264 AA |
131 | u32 sl_seqid; |
132 | __be32 sl_status; | |
133 | u32 sl_datalen; | |
73e79482 BF |
134 | u16 sl_opcnt; |
135 | #define NFSD4_SLOT_INUSE (1 << 0) | |
136 | #define NFSD4_SLOT_CACHETHIS (1 << 1) | |
bf5c43c8 | 137 | #define NFSD4_SLOT_INITIALIZED (1 << 2) |
73e79482 | 138 | u8 sl_flags; |
557ce264 | 139 | char sl_data[]; |
7116ed6b AA |
140 | }; |
141 | ||
6c18ba9f AB |
142 | struct nfsd4_channel_attrs { |
143 | u32 headerpadsz; | |
144 | u32 maxreq_sz; | |
145 | u32 maxresp_sz; | |
146 | u32 maxresp_cached; | |
147 | u32 maxops; | |
148 | u32 maxreqs; | |
149 | u32 nr_rdma_attrs; | |
150 | u32 rdma_attrs; | |
151 | }; | |
152 | ||
49557cc7 AA |
153 | struct nfsd4_create_session { |
154 | clientid_t clientid; | |
155 | struct nfs4_sessionid sessionid; | |
156 | u32 seqid; | |
157 | u32 flags; | |
158 | struct nfsd4_channel_attrs fore_channel; | |
159 | struct nfsd4_channel_attrs back_channel; | |
160 | u32 callback_prog; | |
161 | u32 uid; | |
162 | u32 gid; | |
163 | }; | |
164 | ||
1d1bc8f2 BF |
165 | struct nfsd4_bind_conn_to_session { |
166 | struct nfs4_sessionid sessionid; | |
167 | u32 dir; | |
168 | }; | |
169 | ||
49557cc7 AA |
170 | /* The single slot clientid cache structure */ |
171 | struct nfsd4_clid_slot { | |
172 | u32 sl_seqid; | |
173 | __be32 sl_status; | |
174 | struct nfsd4_create_session sl_cr_ses; | |
175 | }; | |
176 | ||
c7662518 BF |
177 | struct nfsd4_conn { |
178 | struct list_head cn_persession; | |
179 | struct svc_xprt *cn_xprt; | |
19cf5c02 BF |
180 | struct svc_xpt_user cn_xpt_user; |
181 | struct nfsd4_session *cn_session; | |
c7662518 BF |
182 | /* CDFC4_FORE, CDFC4_BACK: */ |
183 | unsigned char cn_flags; | |
184 | }; | |
185 | ||
7116ed6b AA |
186 | struct nfsd4_session { |
187 | struct kref se_ref; | |
188 | struct list_head se_hash; /* hash by sessionid */ | |
189 | struct list_head se_perclnt; | |
190 | u32 se_flags; | |
07cd4909 | 191 | struct nfs4_client *se_client; |
7116ed6b | 192 | struct nfs4_sessionid se_sessionid; |
6c18ba9f AB |
193 | struct nfsd4_channel_attrs se_fchannel; |
194 | struct nfsd4_channel_attrs se_bchannel; | |
c7662518 | 195 | struct list_head se_conns; |
8b5ce5cd | 196 | u32 se_cb_prog; |
ac7c46f2 | 197 | u32 se_cb_seq_nr; |
557ce264 | 198 | struct nfsd4_slot *se_slots[]; /* forward channel slots */ |
7116ed6b AA |
199 | }; |
200 | ||
508dc6e1 | 201 | extern void nfsd4_put_session(struct nfsd4_session *ses); |
7116ed6b | 202 | |
5282fd72 ME |
203 | /* formatted contents of nfs4_sessionid */ |
204 | struct nfsd4_sessionid { | |
205 | clientid_t clientid; | |
206 | u32 sequence; | |
207 | u32 reserved; | |
208 | }; | |
209 | ||
a55370a3 N |
210 | #define HEXDIR_LEN 33 /* hex version of 16 byte md5 of cl_name plus '\0' */ |
211 | ||
1da177e4 LT |
212 | /* |
213 | * struct nfs4_client - one per client. Clientids live here. | |
214 | * o Each nfs4_client is hashed by clientid. | |
215 | * | |
216 | * o Each nfs4_clients is also hashed by name | |
217 | * (the opaque quantity initially sent by the client to identify itself). | |
218 | * | |
219 | * o cl_perclient list is used to ensure no dangling stateowner references | |
220 | * when we expire the nfs4_client | |
221 | */ | |
222 | struct nfs4_client { | |
223 | struct list_head cl_idhash; /* hash by cl_clientid.id */ | |
224 | struct list_head cl_strhash; /* hash by cl_name */ | |
ea1da636 | 225 | struct list_head cl_openowners; |
38c2f4b1 | 226 | struct idr cl_stateids; /* stateid lookup */ |
ea1da636 | 227 | struct list_head cl_delegations; |
1da177e4 LT |
228 | struct list_head cl_lru; /* tail queue */ |
229 | struct xdr_netobj cl_name; /* id generated by client */ | |
a55370a3 | 230 | char cl_recdir[HEXDIR_LEN]; /* recovery dir */ |
1da177e4 LT |
231 | nfs4_verifier cl_verifier; /* generated by client */ |
232 | time_t cl_time; /* time of last lease renewal */ | |
363168b4 | 233 | struct sockaddr_storage cl_addr; /* client ipaddress */ |
61054b14 | 234 | u32 cl_flavor; /* setclientid pseudoflavor */ |
68e76ad0 | 235 | char *cl_principal; /* setclientid principal name */ |
1da177e4 LT |
236 | struct svc_cred cl_cred; /* setclientid principal */ |
237 | clientid_t cl_clientid; /* generated by server */ | |
238 | nfs4_verifier cl_confirm; /* generated by server */ | |
8323c3b2 | 239 | u32 cl_minorversion; |
9fb87070 | 240 | |
2bf23875 BF |
241 | /* for v4.0 and v4.1 callbacks: */ |
242 | struct nfs4_cb_conn cl_cb_conn; | |
a52d726b JL |
243 | #define NFSD4_CLIENT_CB_UPDATE (0) |
244 | #define NFSD4_CLIENT_CB_KILL (1) | |
245 | #define NFSD4_CLIENT_STABLE (2) /* client on stable storage */ | |
246 | #define NFSD4_CLIENT_RECLAIM_COMPLETE (3) /* reclaim_complete done */ | |
247 | #define NFSD4_CLIENT_CB_FLAG_MASK (1 << NFSD4_CLIENT_CB_UPDATE | \ | |
248 | 1 << NFSD4_CLIENT_CB_KILL) | |
249 | unsigned long cl_flags; | |
2bf23875 | 250 | struct rpc_clnt *cl_cb_client; |
6ff8da08 | 251 | u32 cl_cb_ident; |
77a3569d BF |
252 | #define NFSD4_CB_UP 0 |
253 | #define NFSD4_CB_UNKNOWN 1 | |
254 | #define NFSD4_CB_DOWN 2 | |
5423732a | 255 | #define NFSD4_CB_FAULT 3 |
77a3569d | 256 | int cl_cb_state; |
cee277d9 | 257 | struct nfsd4_callback cl_cb_null; |
edd76786 | 258 | struct nfsd4_session *cl_cb_session; |
5ce8ba25 | 259 | struct list_head cl_callbacks; /* list of in-progress callbacks */ |
2bf23875 | 260 | |
6ff8da08 BF |
261 | /* for all client information that callback code might need: */ |
262 | spinlock_t cl_lock; | |
263 | ||
9fb87070 ME |
264 | /* for nfs41 */ |
265 | struct list_head cl_sessions; | |
49557cc7 | 266 | struct nfsd4_clid_slot cl_cs_slot; /* create_session slot */ |
0733d213 | 267 | u32 cl_exchange_flags; |
46583e25 BH |
268 | /* number of rpc's in progress over an associated session: */ |
269 | atomic_t cl_refcount; | |
38524ab3 AA |
270 | |
271 | /* for nfs41 callbacks */ | |
199ff35e RL |
272 | /* We currently support a single back channel with a single slot */ |
273 | unsigned long cl_cb_slot_busy; | |
199ff35e RL |
274 | struct rpc_wait_queue cl_cb_waitq; /* backchannel callers may */ |
275 | /* wait here for slots */ | |
1da177e4 LT |
276 | }; |
277 | ||
07cd4909 BH |
278 | static inline void |
279 | mark_client_expired(struct nfs4_client *clp) | |
280 | { | |
281 | clp->cl_time = 0; | |
282 | } | |
283 | ||
284 | static inline bool | |
285 | is_client_expired(struct nfs4_client *clp) | |
286 | { | |
287 | return clp->cl_time == 0; | |
288 | } | |
289 | ||
1da177e4 LT |
290 | /* struct nfs4_client_reset |
291 | * one per old client. Populates reset_str_hashtbl. Filled from conf_id_hashtbl | |
292 | * upon lease reset, or from upcall to state_daemon (to read in state | |
293 | * from non-volitile storage) upon reboot. | |
294 | */ | |
295 | struct nfs4_client_reclaim { | |
296 | struct list_head cr_strhash; /* hash by cr_name */ | |
a55370a3 | 297 | char cr_recdir[HEXDIR_LEN]; /* recover dir */ |
1da177e4 LT |
298 | }; |
299 | ||
300 | static inline void | |
301 | update_stateid(stateid_t *stateid) | |
302 | { | |
303 | stateid->si_generation++; | |
81b82965 BF |
304 | /* Wraparound recommendation from 3530bis-13 9.1.3.2: */ |
305 | if (stateid->si_generation == 0) | |
306 | stateid->si_generation = 1; | |
1da177e4 LT |
307 | } |
308 | ||
309 | /* A reasonable value for REPLAY_ISIZE was estimated as follows: | |
310 | * The OPEN response, typically the largest, requires | |
311 | * 4(status) + 8(stateid) + 20(changeinfo) + 4(rflags) + 8(verifier) + | |
312 | * 4(deleg. type) + 8(deleg. stateid) + 4(deleg. recall flag) + | |
313 | * 20(deleg. space limit) + ~32(deleg. ace) = 112 bytes | |
314 | */ | |
315 | ||
316 | #define NFSD4_REPLAY_ISIZE 112 | |
317 | ||
318 | /* | |
319 | * Replay buffer, where the result of the last seqid-mutating operation | |
320 | * is cached. | |
321 | */ | |
322 | struct nfs4_replay { | |
b37ad28b | 323 | __be32 rp_status; |
1da177e4 LT |
324 | unsigned int rp_buflen; |
325 | char *rp_buf; | |
a4773c08 | 326 | struct knfsd_fh rp_openfh; |
1da177e4 LT |
327 | char rp_ibuf[NFSD4_REPLAY_ISIZE]; |
328 | }; | |
329 | ||
1da177e4 | 330 | struct nfs4_stateowner { |
1da177e4 | 331 | struct list_head so_strhash; /* hash by op_name */ |
ea1da636 | 332 | struct list_head so_stateids; |
1da177e4 | 333 | struct nfs4_client * so_client; |
7fb64cee N |
334 | /* after increment in ENCODE_SEQID_OP_TAIL, represents the next |
335 | * sequence id expected from the client: */ | |
336 | u32 so_seqid; | |
1da177e4 | 337 | struct xdr_netobj so_owner; /* open owner name */ |
1da177e4 | 338 | struct nfs4_replay so_replay; |
3557e43b | 339 | bool so_is_open_owner; |
1da177e4 LT |
340 | }; |
341 | ||
fe0750e5 BF |
342 | struct nfs4_openowner { |
343 | struct nfs4_stateowner oo_owner; /* must be first field */ | |
344 | struct list_head oo_perclient; | |
b31b30e5 BF |
345 | /* |
346 | * We keep around openowners a little while after last close, | |
347 | * which saves clients from having to confirm, and allows us to | |
348 | * handle close replays if they come soon enough. The close_lru | |
349 | * is a list of such openowners, to be reaped by the laundromat | |
350 | * thread eventually if they remain unused: | |
351 | */ | |
352 | struct list_head oo_close_lru; | |
38c387b5 | 353 | struct nfs4_ol_stateid *oo_last_closed_stid; |
fe0750e5 | 354 | time_t oo_time; /* time of placement on so_close_lru */ |
dad1c067 | 355 | #define NFS4_OO_CONFIRMED 1 |
38c387b5 | 356 | #define NFS4_OO_PURGE_CLOSE 2 |
d29b20cd | 357 | #define NFS4_OO_NEW 4 |
dad1c067 | 358 | unsigned char oo_flags; |
fe0750e5 BF |
359 | }; |
360 | ||
361 | struct nfs4_lockowner { | |
362 | struct nfs4_stateowner lo_owner; /* must be first element */ | |
009673b4 | 363 | struct list_head lo_owner_ino_hash; /* hash by owner,file */ |
fe0750e5 BF |
364 | struct list_head lo_perstateid; /* for lockowners only */ |
365 | struct list_head lo_list; /* for temporary uses */ | |
366 | }; | |
367 | ||
368 | static inline struct nfs4_openowner * openowner(struct nfs4_stateowner *so) | |
369 | { | |
370 | return container_of(so, struct nfs4_openowner, oo_owner); | |
371 | } | |
372 | ||
373 | static inline struct nfs4_lockowner * lockowner(struct nfs4_stateowner *so) | |
374 | { | |
375 | return container_of(so, struct nfs4_lockowner, lo_owner); | |
376 | } | |
377 | ||
1da177e4 LT |
378 | /* |
379 | * nfs4_file: a file opened by some number of (open) nfs4_stateowners. | |
380 | * o fi_perfile list is used to search for conflicting | |
381 | * share_acces, share_deny on the file. | |
382 | */ | |
383 | struct nfs4_file { | |
8b671b80 | 384 | atomic_t fi_ref; |
1da177e4 | 385 | struct list_head fi_hash; /* hash by "struct inode *" */ |
8beefa24 N |
386 | struct list_head fi_stateids; |
387 | struct list_head fi_delegations; | |
f9d7562f BF |
388 | /* One each for O_RDONLY, O_WRONLY, O_RDWR: */ |
389 | struct file * fi_fds[3]; | |
f9d7562f | 390 | /* |
6409a5a6 BF |
391 | * Each open or lock stateid contributes 0-4 to the counts |
392 | * below depending on which bits are set in st_access_bitmap: | |
393 | * 1 to fi_access[O_RDONLY] if NFS4_SHARE_ACCES_READ is set | |
394 | * + 1 to fi_access[O_WRONLY] if NFS4_SHARE_ACCESS_WRITE is set | |
395 | * + 1 to both of the above if NFS4_SHARE_ACCESS_BOTH is set. | |
f9d7562f | 396 | */ |
9ae78bcc | 397 | atomic_t fi_access[2]; |
acfdf5c3 BF |
398 | struct file *fi_deleg_file; |
399 | struct file_lock *fi_lease; | |
400 | atomic_t fi_delegees; | |
1da177e4 | 401 | struct inode *fi_inode; |
47f9940c | 402 | bool fi_had_conflict; |
1da177e4 LT |
403 | }; |
404 | ||
f9d7562f BF |
405 | /* XXX: for first cut may fall back on returning file that doesn't work |
406 | * at all? */ | |
407 | static inline struct file *find_writeable_file(struct nfs4_file *f) | |
408 | { | |
7d947842 BF |
409 | if (f->fi_fds[O_WRONLY]) |
410 | return f->fi_fds[O_WRONLY]; | |
411 | return f->fi_fds[O_RDWR]; | |
f9d7562f BF |
412 | } |
413 | ||
414 | static inline struct file *find_readable_file(struct nfs4_file *f) | |
415 | { | |
7d947842 BF |
416 | if (f->fi_fds[O_RDONLY]) |
417 | return f->fi_fds[O_RDONLY]; | |
418 | return f->fi_fds[O_RDWR]; | |
f9d7562f BF |
419 | } |
420 | ||
421 | static inline struct file *find_any_file(struct nfs4_file *f) | |
422 | { | |
423 | if (f->fi_fds[O_RDWR]) | |
424 | return f->fi_fds[O_RDWR]; | |
18608ad4 | 425 | else if (f->fi_fds[O_WRONLY]) |
f9d7562f BF |
426 | return f->fi_fds[O_WRONLY]; |
427 | else | |
428 | return f->fi_fds[O_RDONLY]; | |
429 | } | |
430 | ||
d5477a8d | 431 | /* "ol" stands for "Open or Lock". Better suggestions welcome. */ |
dcef0413 | 432 | struct nfs4_ol_stateid { |
996e0938 | 433 | struct nfs4_stid st_stid; /* must be first field */ |
1da177e4 | 434 | struct list_head st_perfile; |
ea1da636 N |
435 | struct list_head st_perstateowner; |
436 | struct list_head st_lockowners; | |
1da177e4 LT |
437 | struct nfs4_stateowner * st_stateowner; |
438 | struct nfs4_file * st_file; | |
1da177e4 LT |
439 | unsigned long st_access_bmap; |
440 | unsigned long st_deny_bmap; | |
dcef0413 | 441 | struct nfs4_ol_stateid * st_openstp; |
1da177e4 LT |
442 | }; |
443 | ||
dcef0413 BF |
444 | static inline struct nfs4_ol_stateid *openlockstateid(struct nfs4_stid *s) |
445 | { | |
446 | return container_of(s, struct nfs4_ol_stateid, st_stid); | |
447 | } | |
448 | ||
1da177e4 | 449 | /* flags for preprocess_seqid_op() */ |
1da177e4 LT |
450 | #define RD_STATE 0x00000010 |
451 | #define WR_STATE 0x00000020 | |
1da177e4 | 452 | |
dd453dfd BH |
453 | struct nfsd4_compound_state; |
454 | ||
455 | extern __be32 nfs4_preprocess_stateid_op(struct nfsd4_compound_state *cstate, | |
1da177e4 | 456 | stateid_t *stateid, int flags, struct file **filp); |
1da177e4 LT |
457 | extern void nfs4_lock_state(void); |
458 | extern void nfs4_unlock_state(void); | |
459 | extern int nfs4_in_grace(void); | |
2a4317c5 JL |
460 | extern void nfs4_release_reclaim(void); |
461 | extern struct nfs4_client_reclaim *nfsd4_find_reclaim_client(struct nfs4_client *crp); | |
b37ad28b | 462 | extern __be32 nfs4_check_open_reclaim(clientid_t *clid); |
fe0750e5 BF |
463 | extern void nfs4_free_openowner(struct nfs4_openowner *); |
464 | extern void nfs4_free_lockowner(struct nfs4_lockowner *); | |
80fc015b | 465 | extern int set_callback_cred(void); |
5a3c9d71 | 466 | extern void nfsd4_probe_callback(struct nfs4_client *clp); |
84f5f7cc | 467 | extern void nfsd4_probe_callback_sync(struct nfs4_client *clp); |
5a3c9d71 | 468 | extern void nfsd4_change_callback(struct nfs4_client *clp, struct nfs4_cb_conn *); |
b5a1a81e | 469 | extern void nfsd4_do_callback_rpc(struct work_struct *); |
1da177e4 | 470 | extern void nfsd4_cb_recall(struct nfs4_delegation *dp); |
b5a1a81e BF |
471 | extern int nfsd4_create_callback_queue(void); |
472 | extern void nfsd4_destroy_callback_queue(void); | |
6ff8da08 | 473 | extern void nfsd4_shutdown_callback(struct nfs4_client *); |
1da177e4 | 474 | extern void nfs4_put_delegation(struct nfs4_delegation *dp); |
b37ad28b | 475 | extern __be32 nfs4_make_rec_clidname(char *clidname, struct xdr_netobj *clname); |
190e4fbf | 476 | extern int nfs4_client_to_reclaim(const char *name); |
a1bcecd2 | 477 | extern int nfs4_has_reclaimed_state(const char *name, bool use_exchange_id); |
d7682988 | 478 | extern void release_session_client(struct nfsd4_session *); |
38c2f4b1 | 479 | extern __be32 nfs4_validate_stateid(struct nfs4_client *, stateid_t *); |
38c387b5 | 480 | extern void nfsd4_purge_closed_stateid(struct nfs4_stateowner *); |
1da177e4 | 481 | |
2a4317c5 JL |
482 | /* nfs4recover operations */ |
483 | extern int nfsd4_client_tracking_init(struct net *net); | |
484 | extern void nfsd4_client_tracking_exit(struct net *net); | |
485 | extern void nfsd4_client_record_create(struct nfs4_client *clp); | |
486 | extern void nfsd4_client_record_remove(struct nfs4_client *clp); | |
487 | extern int nfsd4_client_record_check(struct nfs4_client *clp); | |
488 | extern void nfsd4_record_grace_done(struct net *net, time_t boot_time); | |
1da177e4 | 489 | #endif /* NFSD4_STATE_H */ |