blob: e3a1527cbdbe7c8cd4bb0a8b6605e486b8ea538c [file] [log] [blame]
David Teiglande7fd4172006-01-18 09:30:29 +00001/******************************************************************************
2*******************************************************************************
3**
4** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
5** Copyright (C) 2005 Red Hat, Inc. All rights reserved.
6**
7** This copyrighted material is made available to anyone wishing to use,
8** modify, copy, or redistribute it subject to the terms and conditions
9** of the GNU General Public License v.2.
10**
11*******************************************************************************
12******************************************************************************/
13
14#include "dlm_internal.h"
15#include "lockspace.h"
16#include "member.h"
17#include "lowcomms.h"
18#include "midcomms.h"
19#include "rcom.h"
20#include "recover.h"
21#include "dir.h"
22#include "config.h"
23#include "memory.h"
24#include "lock.h"
25#include "util.h"
26
27
28static int rcom_response(struct dlm_ls *ls)
29{
30 return test_bit(LSFL_RCOM_READY, &ls->ls_flags);
31}
32
33static int create_rcom(struct dlm_ls *ls, int to_nodeid, int type, int len,
34 struct dlm_rcom **rc_ret, struct dlm_mhandle **mh_ret)
35{
36 struct dlm_rcom *rc;
37 struct dlm_mhandle *mh;
38 char *mb;
39 int mb_len = sizeof(struct dlm_rcom) + len;
40
Patrick Caulfield44f487a2007-06-06 09:21:22 -050041 mh = dlm_lowcomms_get_buffer(to_nodeid, mb_len, ls->ls_allocation, &mb);
David Teiglande7fd4172006-01-18 09:30:29 +000042 if (!mh) {
43 log_print("create_rcom to %d type %d len %d ENOBUFS",
44 to_nodeid, type, len);
45 return -ENOBUFS;
46 }
47 memset(mb, 0, mb_len);
48
49 rc = (struct dlm_rcom *) mb;
50
51 rc->rc_header.h_version = (DLM_HEADER_MAJOR | DLM_HEADER_MINOR);
52 rc->rc_header.h_lockspace = ls->ls_global_id;
53 rc->rc_header.h_nodeid = dlm_our_nodeid();
54 rc->rc_header.h_length = mb_len;
55 rc->rc_header.h_cmd = DLM_RCOM;
56
57 rc->rc_type = type;
58
David Teigland38aa8b02006-12-13 10:37:16 -060059 spin_lock(&ls->ls_recover_lock);
60 rc->rc_seq = ls->ls_recover_seq;
61 spin_unlock(&ls->ls_recover_lock);
62
David Teiglande7fd4172006-01-18 09:30:29 +000063 *mh_ret = mh;
64 *rc_ret = rc;
65 return 0;
66}
67
68static void send_rcom(struct dlm_ls *ls, struct dlm_mhandle *mh,
69 struct dlm_rcom *rc)
70{
71 dlm_rcom_out(rc);
72 dlm_lowcomms_commit_buffer(mh);
73}
74
75/* When replying to a status request, a node also sends back its
76 configuration values. The requesting node then checks that the remote
77 node is configured the same way as itself. */
78
79static void make_config(struct dlm_ls *ls, struct rcom_config *rf)
80{
81 rf->rf_lvblen = ls->ls_lvblen;
82 rf->rf_lsflags = ls->ls_exflags;
83}
84
David Teigland9e971b72006-12-13 10:37:55 -060085static int check_config(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid)
David Teiglande7fd4172006-01-18 09:30:29 +000086{
David Teigland9e971b72006-12-13 10:37:55 -060087 struct rcom_config *rf = (struct rcom_config *) rc->rc_buf;
88
89 if ((rc->rc_header.h_version & 0xFFFF0000) != DLM_HEADER_MAJOR) {
90 log_error(ls, "version mismatch: %x nodeid %d: %x",
91 DLM_HEADER_MAJOR | DLM_HEADER_MINOR, nodeid,
92 rc->rc_header.h_version);
David Teigland8b0e7b22007-05-18 09:03:35 -050093 return -EPROTO;
David Teigland9e971b72006-12-13 10:37:55 -060094 }
95
David Teiglande7fd4172006-01-18 09:30:29 +000096 if (rf->rf_lvblen != ls->ls_lvblen ||
97 rf->rf_lsflags != ls->ls_exflags) {
98 log_error(ls, "config mismatch: %d,%x nodeid %d: %d,%x",
99 ls->ls_lvblen, ls->ls_exflags,
100 nodeid, rf->rf_lvblen, rf->rf_lsflags);
David Teigland8b0e7b22007-05-18 09:03:35 -0500101 return -EPROTO;
David Teiglande7fd4172006-01-18 09:30:29 +0000102 }
103 return 0;
104}
105
David Teigland98f176f2006-11-27 13:19:28 -0600106static void allow_sync_reply(struct dlm_ls *ls, uint64_t *new_seq)
107{
108 spin_lock(&ls->ls_rcom_spin);
109 *new_seq = ++ls->ls_rcom_seq;
110 set_bit(LSFL_RCOM_WAIT, &ls->ls_flags);
111 spin_unlock(&ls->ls_rcom_spin);
112}
113
114static void disallow_sync_reply(struct dlm_ls *ls)
115{
116 spin_lock(&ls->ls_rcom_spin);
117 clear_bit(LSFL_RCOM_WAIT, &ls->ls_flags);
118 clear_bit(LSFL_RCOM_READY, &ls->ls_flags);
119 spin_unlock(&ls->ls_rcom_spin);
120}
121
David Teiglande7fd4172006-01-18 09:30:29 +0000122int dlm_rcom_status(struct dlm_ls *ls, int nodeid)
123{
124 struct dlm_rcom *rc;
125 struct dlm_mhandle *mh;
126 int error = 0;
127
David Teiglandfaa0f262006-08-08 17:08:42 -0500128 ls->ls_recover_nodeid = nodeid;
David Teiglande7fd4172006-01-18 09:30:29 +0000129
130 if (nodeid == dlm_our_nodeid()) {
131 rc = (struct dlm_rcom *) ls->ls_recover_buf;
132 rc->rc_result = dlm_recover_status(ls);
133 goto out;
134 }
135
136 error = create_rcom(ls, nodeid, DLM_RCOM_STATUS, 0, &rc, &mh);
137 if (error)
138 goto out;
David Teigland98f176f2006-11-27 13:19:28 -0600139
140 allow_sync_reply(ls, &rc->rc_id);
David Teigland68c817a2007-01-09 09:41:48 -0600141 memset(ls->ls_recover_buf, 0, dlm_config.ci_buffer_size);
David Teiglande7fd4172006-01-18 09:30:29 +0000142
143 send_rcom(ls, mh, rc);
144
145 error = dlm_wait_function(ls, &rcom_response);
David Teigland98f176f2006-11-27 13:19:28 -0600146 disallow_sync_reply(ls);
David Teiglande7fd4172006-01-18 09:30:29 +0000147 if (error)
148 goto out;
149
150 rc = (struct dlm_rcom *) ls->ls_recover_buf;
151
152 if (rc->rc_result == -ESRCH) {
153 /* we pretend the remote lockspace exists with 0 status */
154 log_debug(ls, "remote node %d not ready", nodeid);
155 rc->rc_result = 0;
156 } else
David Teigland9e971b72006-12-13 10:37:55 -0600157 error = check_config(ls, rc, nodeid);
David Teiglande7fd4172006-01-18 09:30:29 +0000158 /* the caller looks at rc_result for the remote recovery status */
159 out:
160 return error;
161}
162
163static void receive_rcom_status(struct dlm_ls *ls, struct dlm_rcom *rc_in)
164{
165 struct dlm_rcom *rc;
166 struct dlm_mhandle *mh;
167 int error, nodeid = rc_in->rc_header.h_nodeid;
168
169 error = create_rcom(ls, nodeid, DLM_RCOM_STATUS_REPLY,
170 sizeof(struct rcom_config), &rc, &mh);
171 if (error)
172 return;
David Teigland4a99c3d2006-08-09 11:20:15 -0500173 rc->rc_id = rc_in->rc_id;
David Teigland38aa8b02006-12-13 10:37:16 -0600174 rc->rc_seq_reply = rc_in->rc_seq;
David Teiglande7fd4172006-01-18 09:30:29 +0000175 rc->rc_result = dlm_recover_status(ls);
176 make_config(ls, (struct rcom_config *) rc->rc_buf);
177
178 send_rcom(ls, mh, rc);
179}
180
David Teigland4a99c3d2006-08-09 11:20:15 -0500181static void receive_sync_reply(struct dlm_ls *ls, struct dlm_rcom *rc_in)
David Teiglande7fd4172006-01-18 09:30:29 +0000182{
David Teigland98f176f2006-11-27 13:19:28 -0600183 spin_lock(&ls->ls_rcom_spin);
184 if (!test_bit(LSFL_RCOM_WAIT, &ls->ls_flags) ||
185 rc_in->rc_id != ls->ls_rcom_seq) {
186 log_debug(ls, "reject reply %d from %d seq %llx expect %llx",
187 rc_in->rc_type, rc_in->rc_header.h_nodeid,
Ryusuke Konishi57adf7e2006-11-29 09:33:48 -0500188 (unsigned long long)rc_in->rc_id,
189 (unsigned long long)ls->ls_rcom_seq);
David Teigland98f176f2006-11-27 13:19:28 -0600190 goto out;
David Teigland4a99c3d2006-08-09 11:20:15 -0500191 }
David Teiglande7fd4172006-01-18 09:30:29 +0000192 memcpy(ls->ls_recover_buf, rc_in, rc_in->rc_header.h_length);
193 set_bit(LSFL_RCOM_READY, &ls->ls_flags);
David Teigland98f176f2006-11-27 13:19:28 -0600194 clear_bit(LSFL_RCOM_WAIT, &ls->ls_flags);
David Teiglande7fd4172006-01-18 09:30:29 +0000195 wake_up(&ls->ls_wait_general);
David Teigland98f176f2006-11-27 13:19:28 -0600196 out:
197 spin_unlock(&ls->ls_rcom_spin);
David Teiglande7fd4172006-01-18 09:30:29 +0000198}
199
David Teigland4a99c3d2006-08-09 11:20:15 -0500200static void receive_rcom_status_reply(struct dlm_ls *ls, struct dlm_rcom *rc_in)
201{
202 receive_sync_reply(ls, rc_in);
203}
204
David Teiglande7fd4172006-01-18 09:30:29 +0000205int dlm_rcom_names(struct dlm_ls *ls, int nodeid, char *last_name, int last_len)
206{
207 struct dlm_rcom *rc;
208 struct dlm_mhandle *mh;
209 int error = 0, len = sizeof(struct dlm_rcom);
210
David Teiglandfaa0f262006-08-08 17:08:42 -0500211 ls->ls_recover_nodeid = nodeid;
David Teiglande7fd4172006-01-18 09:30:29 +0000212
213 if (nodeid == dlm_our_nodeid()) {
214 dlm_copy_master_names(ls, last_name, last_len,
215 ls->ls_recover_buf + len,
David Teigland68c817a2007-01-09 09:41:48 -0600216 dlm_config.ci_buffer_size - len, nodeid);
David Teiglande7fd4172006-01-18 09:30:29 +0000217 goto out;
218 }
219
220 error = create_rcom(ls, nodeid, DLM_RCOM_NAMES, last_len, &rc, &mh);
221 if (error)
222 goto out;
223 memcpy(rc->rc_buf, last_name, last_len);
David Teigland98f176f2006-11-27 13:19:28 -0600224
225 allow_sync_reply(ls, &rc->rc_id);
David Teigland68c817a2007-01-09 09:41:48 -0600226 memset(ls->ls_recover_buf, 0, dlm_config.ci_buffer_size);
David Teiglande7fd4172006-01-18 09:30:29 +0000227
228 send_rcom(ls, mh, rc);
229
230 error = dlm_wait_function(ls, &rcom_response);
David Teigland98f176f2006-11-27 13:19:28 -0600231 disallow_sync_reply(ls);
David Teiglande7fd4172006-01-18 09:30:29 +0000232 out:
233 return error;
234}
235
236static void receive_rcom_names(struct dlm_ls *ls, struct dlm_rcom *rc_in)
237{
238 struct dlm_rcom *rc;
239 struct dlm_mhandle *mh;
David Teigland38aa8b02006-12-13 10:37:16 -0600240 int error, inlen, outlen, nodeid;
David Teiglande7fd4172006-01-18 09:30:29 +0000241
242 nodeid = rc_in->rc_header.h_nodeid;
243 inlen = rc_in->rc_header.h_length - sizeof(struct dlm_rcom);
David Teigland68c817a2007-01-09 09:41:48 -0600244 outlen = dlm_config.ci_buffer_size - sizeof(struct dlm_rcom);
David Teiglande7fd4172006-01-18 09:30:29 +0000245
246 error = create_rcom(ls, nodeid, DLM_RCOM_NAMES_REPLY, outlen, &rc, &mh);
247 if (error)
248 return;
David Teigland4a99c3d2006-08-09 11:20:15 -0500249 rc->rc_id = rc_in->rc_id;
David Teigland38aa8b02006-12-13 10:37:16 -0600250 rc->rc_seq_reply = rc_in->rc_seq;
David Teiglande7fd4172006-01-18 09:30:29 +0000251
252 dlm_copy_master_names(ls, rc_in->rc_buf, inlen, rc->rc_buf, outlen,
253 nodeid);
254 send_rcom(ls, mh, rc);
255}
256
257static void receive_rcom_names_reply(struct dlm_ls *ls, struct dlm_rcom *rc_in)
258{
David Teigland4a99c3d2006-08-09 11:20:15 -0500259 receive_sync_reply(ls, rc_in);
David Teiglande7fd4172006-01-18 09:30:29 +0000260}
261
262int dlm_send_rcom_lookup(struct dlm_rsb *r, int dir_nodeid)
263{
264 struct dlm_rcom *rc;
265 struct dlm_mhandle *mh;
266 struct dlm_ls *ls = r->res_ls;
267 int error;
268
269 error = create_rcom(ls, dir_nodeid, DLM_RCOM_LOOKUP, r->res_length,
270 &rc, &mh);
271 if (error)
272 goto out;
273 memcpy(rc->rc_buf, r->res_name, r->res_length);
274 rc->rc_id = (unsigned long) r;
275
276 send_rcom(ls, mh, rc);
277 out:
278 return error;
279}
280
281static void receive_rcom_lookup(struct dlm_ls *ls, struct dlm_rcom *rc_in)
282{
283 struct dlm_rcom *rc;
284 struct dlm_mhandle *mh;
285 int error, ret_nodeid, nodeid = rc_in->rc_header.h_nodeid;
286 int len = rc_in->rc_header.h_length - sizeof(struct dlm_rcom);
287
288 error = create_rcom(ls, nodeid, DLM_RCOM_LOOKUP_REPLY, 0, &rc, &mh);
289 if (error)
290 return;
291
292 error = dlm_dir_lookup(ls, nodeid, rc_in->rc_buf, len, &ret_nodeid);
293 if (error)
294 ret_nodeid = error;
295 rc->rc_result = ret_nodeid;
296 rc->rc_id = rc_in->rc_id;
David Teigland38aa8b02006-12-13 10:37:16 -0600297 rc->rc_seq_reply = rc_in->rc_seq;
David Teiglande7fd4172006-01-18 09:30:29 +0000298
299 send_rcom(ls, mh, rc);
300}
301
302static void receive_rcom_lookup_reply(struct dlm_ls *ls, struct dlm_rcom *rc_in)
303{
304 dlm_recover_master_reply(ls, rc_in);
305}
306
307static void pack_rcom_lock(struct dlm_rsb *r, struct dlm_lkb *lkb,
308 struct rcom_lock *rl)
309{
310 memset(rl, 0, sizeof(*rl));
311
312 rl->rl_ownpid = lkb->lkb_ownpid;
313 rl->rl_lkid = lkb->lkb_id;
314 rl->rl_exflags = lkb->lkb_exflags;
315 rl->rl_flags = lkb->lkb_flags;
316 rl->rl_lvbseq = lkb->lkb_lvbseq;
317 rl->rl_rqmode = lkb->lkb_rqmode;
318 rl->rl_grmode = lkb->lkb_grmode;
319 rl->rl_status = lkb->lkb_status;
320 rl->rl_wait_type = lkb->lkb_wait_type;
321
322 if (lkb->lkb_bastaddr)
323 rl->rl_asts |= AST_BAST;
324 if (lkb->lkb_astaddr)
325 rl->rl_asts |= AST_COMP;
326
David Teiglande7fd4172006-01-18 09:30:29 +0000327 rl->rl_namelen = r->res_length;
328 memcpy(rl->rl_name, r->res_name, r->res_length);
329
330 /* FIXME: might we have an lvb without DLM_LKF_VALBLK set ?
331 If so, receive_rcom_lock_args() won't take this copy. */
332
333 if (lkb->lkb_lvbptr)
334 memcpy(rl->rl_lvb, lkb->lkb_lvbptr, r->res_ls->ls_lvblen);
335}
336
337int dlm_send_rcom_lock(struct dlm_rsb *r, struct dlm_lkb *lkb)
338{
339 struct dlm_ls *ls = r->res_ls;
340 struct dlm_rcom *rc;
341 struct dlm_mhandle *mh;
342 struct rcom_lock *rl;
343 int error, len = sizeof(struct rcom_lock);
344
345 if (lkb->lkb_lvbptr)
346 len += ls->ls_lvblen;
347
348 error = create_rcom(ls, r->res_nodeid, DLM_RCOM_LOCK, len, &rc, &mh);
349 if (error)
350 goto out;
351
352 rl = (struct rcom_lock *) rc->rc_buf;
353 pack_rcom_lock(r, lkb, rl);
354 rc->rc_id = (unsigned long) r;
355
356 send_rcom(ls, mh, rc);
357 out:
358 return error;
359}
360
361static void receive_rcom_lock(struct dlm_ls *ls, struct dlm_rcom *rc_in)
362{
363 struct dlm_rcom *rc;
364 struct dlm_mhandle *mh;
365 int error, nodeid = rc_in->rc_header.h_nodeid;
366
367 dlm_recover_master_copy(ls, rc_in);
368
369 error = create_rcom(ls, nodeid, DLM_RCOM_LOCK_REPLY,
370 sizeof(struct rcom_lock), &rc, &mh);
371 if (error)
372 return;
373
374 /* We send back the same rcom_lock struct we received, but
375 dlm_recover_master_copy() has filled in rl_remid and rl_result */
376
377 memcpy(rc->rc_buf, rc_in->rc_buf, sizeof(struct rcom_lock));
378 rc->rc_id = rc_in->rc_id;
David Teigland38aa8b02006-12-13 10:37:16 -0600379 rc->rc_seq_reply = rc_in->rc_seq;
David Teiglande7fd4172006-01-18 09:30:29 +0000380
381 send_rcom(ls, mh, rc);
382}
383
384static void receive_rcom_lock_reply(struct dlm_ls *ls, struct dlm_rcom *rc_in)
385{
David Teiglande7fd4172006-01-18 09:30:29 +0000386 dlm_recover_process_copy(ls, rc_in);
387}
388
Patrick Caulfield44f487a2007-06-06 09:21:22 -0500389static int send_ls_not_ready(struct dlm_ls *ls, int nodeid,
390 struct dlm_rcom *rc_in)
David Teiglande7fd4172006-01-18 09:30:29 +0000391{
392 struct dlm_rcom *rc;
David Teigland1babdb42006-11-27 13:18:41 -0600393 struct rcom_config *rf;
David Teiglande7fd4172006-01-18 09:30:29 +0000394 struct dlm_mhandle *mh;
395 char *mb;
David Teigland1babdb42006-11-27 13:18:41 -0600396 int mb_len = sizeof(struct dlm_rcom) + sizeof(struct rcom_config);
David Teiglande7fd4172006-01-18 09:30:29 +0000397
Patrick Caulfield44f487a2007-06-06 09:21:22 -0500398 mh = dlm_lowcomms_get_buffer(nodeid, mb_len, ls->ls_allocation, &mb);
David Teiglande7fd4172006-01-18 09:30:29 +0000399 if (!mh)
400 return -ENOBUFS;
401 memset(mb, 0, mb_len);
402
403 rc = (struct dlm_rcom *) mb;
404
405 rc->rc_header.h_version = (DLM_HEADER_MAJOR | DLM_HEADER_MINOR);
406 rc->rc_header.h_lockspace = rc_in->rc_header.h_lockspace;
407 rc->rc_header.h_nodeid = dlm_our_nodeid();
408 rc->rc_header.h_length = mb_len;
409 rc->rc_header.h_cmd = DLM_RCOM;
410
411 rc->rc_type = DLM_RCOM_STATUS_REPLY;
David Teiglandf5888752006-08-23 12:50:54 -0500412 rc->rc_id = rc_in->rc_id;
David Teigland38aa8b02006-12-13 10:37:16 -0600413 rc->rc_seq_reply = rc_in->rc_seq;
David Teiglande7fd4172006-01-18 09:30:29 +0000414 rc->rc_result = -ESRCH;
415
David Teigland1babdb42006-11-27 13:18:41 -0600416 rf = (struct rcom_config *) rc->rc_buf;
417 rf->rf_lvblen = -1;
418
David Teiglande7fd4172006-01-18 09:30:29 +0000419 dlm_rcom_out(rc);
420 dlm_lowcomms_commit_buffer(mh);
421
422 return 0;
423}
424
David Teigland38aa8b02006-12-13 10:37:16 -0600425static int is_old_reply(struct dlm_ls *ls, struct dlm_rcom *rc)
426{
427 uint64_t seq;
428 int rv = 0;
429
430 switch (rc->rc_type) {
431 case DLM_RCOM_STATUS_REPLY:
432 case DLM_RCOM_NAMES_REPLY:
433 case DLM_RCOM_LOOKUP_REPLY:
434 case DLM_RCOM_LOCK_REPLY:
435 spin_lock(&ls->ls_recover_lock);
436 seq = ls->ls_recover_seq;
437 spin_unlock(&ls->ls_recover_lock);
438 if (rc->rc_seq_reply != seq) {
David Teigland8ec68862007-01-09 09:38:39 -0600439 log_debug(ls, "ignoring old reply %x from %d "
David Teigland38aa8b02006-12-13 10:37:16 -0600440 "seq_reply %llx expect %llx",
441 rc->rc_type, rc->rc_header.h_nodeid,
442 (unsigned long long)rc->rc_seq_reply,
443 (unsigned long long)seq);
444 rv = 1;
445 }
446 }
447 return rv;
448}
449
David Teiglande7fd4172006-01-18 09:30:29 +0000450/* Called by dlm_recvd; corresponds to dlm_receive_message() but special
451 recovery-only comms are sent through here. */
452
453void dlm_receive_rcom(struct dlm_header *hd, int nodeid)
454{
455 struct dlm_rcom *rc = (struct dlm_rcom *) hd;
456 struct dlm_ls *ls;
457
458 dlm_rcom_in(rc);
459
460 /* If the lockspace doesn't exist then still send a status message
461 back; it's possible that it just doesn't have its global_id yet. */
462
463 ls = dlm_find_lockspace_global(hd->h_lockspace);
464 if (!ls) {
David Teigland435618b2006-11-02 09:45:56 -0600465 log_print("lockspace %x from %d type %x not found",
466 hd->h_lockspace, nodeid, rc->rc_type);
467 if (rc->rc_type == DLM_RCOM_STATUS)
Patrick Caulfield44f487a2007-06-06 09:21:22 -0500468 send_ls_not_ready(ls, nodeid, rc);
David Teiglande7fd4172006-01-18 09:30:29 +0000469 return;
470 }
471
472 if (dlm_recovery_stopped(ls) && (rc->rc_type != DLM_RCOM_STATUS)) {
David Teigland8ec68862007-01-09 09:38:39 -0600473 log_debug(ls, "ignoring recovery message %x from %d",
David Teiglande7fd4172006-01-18 09:30:29 +0000474 rc->rc_type, nodeid);
475 goto out;
476 }
477
David Teigland38aa8b02006-12-13 10:37:16 -0600478 if (is_old_reply(ls, rc))
479 goto out;
480
David Teiglande7fd4172006-01-18 09:30:29 +0000481 if (nodeid != rc->rc_header.h_nodeid) {
482 log_error(ls, "bad rcom nodeid %d from %d",
483 rc->rc_header.h_nodeid, nodeid);
484 goto out;
485 }
486
487 switch (rc->rc_type) {
488 case DLM_RCOM_STATUS:
489 receive_rcom_status(ls, rc);
490 break;
491
492 case DLM_RCOM_NAMES:
493 receive_rcom_names(ls, rc);
494 break;
495
496 case DLM_RCOM_LOOKUP:
497 receive_rcom_lookup(ls, rc);
498 break;
499
500 case DLM_RCOM_LOCK:
501 receive_rcom_lock(ls, rc);
502 break;
503
504 case DLM_RCOM_STATUS_REPLY:
505 receive_rcom_status_reply(ls, rc);
506 break;
507
508 case DLM_RCOM_NAMES_REPLY:
509 receive_rcom_names_reply(ls, rc);
510 break;
511
512 case DLM_RCOM_LOOKUP_REPLY:
513 receive_rcom_lookup_reply(ls, rc);
514 break;
515
516 case DLM_RCOM_LOCK_REPLY:
517 receive_rcom_lock_reply(ls, rc);
518 break;
519
520 default:
521 DLM_ASSERT(0, printk("rc_type=%x\n", rc->rc_type););
522 }
523 out:
524 dlm_put_lockspace(ls);
525}
526