Commit | Line | Data |
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d7e09d03 PT |
1 | /* |
2 | * GPL HEADER START | |
3 | * | |
4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 only, | |
8 | * as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License version 2 for more details (a copy is included | |
14 | * in the LICENSE file that accompanied this code). | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * version 2 along with this program; If not, see | |
18 | * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf | |
19 | * | |
20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
21 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
22 | * have any questions. | |
23 | * | |
24 | * GPL HEADER END | |
25 | */ | |
26 | /* | |
27 | * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. | |
28 | * Use is subject to license terms. | |
29 | * | |
30 | * Copyright (c) 2011, 2012, Intel Corporation. | |
31 | */ | |
32 | /* | |
33 | * This file is part of Lustre, http://www.lustre.org/ | |
34 | * Lustre is a trademark of Sun Microsystems, Inc. | |
35 | */ | |
36 | ||
37 | #define DEBUG_SUBSYSTEM S_MDC | |
38 | ||
39 | # include <linux/module.h> | |
40 | # include <linux/pagemap.h> | |
41 | # include <linux/miscdevice.h> | |
42 | # include <linux/init.h> | |
43 | # include <linux/utsname.h> | |
44 | ||
05932307 GKH |
45 | #include "../include/lustre_acl.h" |
46 | #include "../include/obd_class.h" | |
47 | #include "../include/lustre_fid.h" | |
48 | #include "../include/lprocfs_status.h" | |
49 | #include "../include/lustre_param.h" | |
50 | #include "../include/lustre_log.h" | |
d7e09d03 PT |
51 | |
52 | #include "mdc_internal.h" | |
53 | ||
54 | #define REQUEST_MINOR 244 | |
55 | ||
d7e09d03 PT |
56 | static int mdc_cleanup(struct obd_device *obd); |
57 | ||
d7e09d03 PT |
58 | static inline int mdc_queue_wait(struct ptlrpc_request *req) |
59 | { | |
60 | struct client_obd *cli = &req->rq_import->imp_obd->u.cli; | |
61 | int rc; | |
62 | ||
63 | /* mdc_enter_request() ensures that this client has no more | |
64 | * than cl_max_rpcs_in_flight RPCs simultaneously inf light | |
65 | * against an MDT. */ | |
66 | rc = mdc_enter_request(cli); | |
67 | if (rc != 0) | |
68 | return rc; | |
69 | ||
70 | rc = ptlrpc_queue_wait(req); | |
71 | mdc_exit_request(cli); | |
72 | ||
73 | return rc; | |
74 | } | |
75 | ||
ef2e0f55 | 76 | static int mdc_getstatus(struct obd_export *exp, struct lu_fid *rootfid) |
d7e09d03 PT |
77 | { |
78 | struct ptlrpc_request *req; | |
79 | struct mdt_body *body; | |
80 | int rc; | |
d7e09d03 | 81 | |
ef2e0f55 OD |
82 | req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), |
83 | &RQF_MDS_GETSTATUS, | |
d7e09d03 PT |
84 | LUSTRE_MDS_VERSION, MDS_GETSTATUS); |
85 | if (req == NULL) | |
0a3bdb00 | 86 | return -ENOMEM; |
d7e09d03 | 87 | |
ef2e0f55 OD |
88 | mdc_pack_body(req, NULL, 0, 0, -1, 0); |
89 | req->rq_send_state = LUSTRE_IMP_FULL; | |
d7e09d03 PT |
90 | |
91 | ptlrpc_request_set_replen(req); | |
92 | ||
93 | rc = ptlrpc_queue_wait(req); | |
94 | if (rc) | |
d5fdc207 | 95 | goto out; |
d7e09d03 PT |
96 | |
97 | body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
d5fdc207 JL |
98 | if (body == NULL) { |
99 | rc = -EPROTO; | |
100 | goto out; | |
101 | } | |
d7e09d03 | 102 | |
d7e09d03 PT |
103 | *rootfid = body->fid1; |
104 | CDEBUG(D_NET, | |
b0f5aad5 | 105 | "root fid="DFID", last_committed=%llu\n", |
d7e09d03 PT |
106 | PFID(rootfid), |
107 | lustre_msg_get_last_committed(req->rq_repmsg)); | |
d7e09d03 PT |
108 | out: |
109 | ptlrpc_req_finished(req); | |
110 | return rc; | |
111 | } | |
112 | ||
d7e09d03 PT |
113 | /* |
114 | * This function now is known to always saying that it will receive 4 buffers | |
115 | * from server. Even for cases when acl_size and md_size is zero, RPC header | |
116 | * will contain 4 fields and RPC itself will contain zero size fields. This is | |
117 | * because mdt_getattr*() _always_ returns 4 fields, but if acl is not needed | |
118 | * and thus zero, it shrinks it, making zero size. The same story about | |
119 | * md_size. And this is course of problem when client waits for smaller number | |
120 | * of fields. This issue will be fixed later when client gets aware of RPC | |
121 | * layouts. --umka | |
122 | */ | |
123 | static int mdc_getattr_common(struct obd_export *exp, | |
124 | struct ptlrpc_request *req) | |
125 | { | |
126 | struct req_capsule *pill = &req->rq_pill; | |
127 | struct mdt_body *body; | |
128 | void *eadata; | |
129 | int rc; | |
d7e09d03 PT |
130 | |
131 | /* Request message already built. */ | |
132 | rc = ptlrpc_queue_wait(req); | |
133 | if (rc != 0) | |
0a3bdb00 | 134 | return rc; |
d7e09d03 PT |
135 | |
136 | /* sanity check for the reply */ | |
137 | body = req_capsule_server_get(pill, &RMF_MDT_BODY); | |
138 | if (body == NULL) | |
0a3bdb00 | 139 | return -EPROTO; |
d7e09d03 PT |
140 | |
141 | CDEBUG(D_NET, "mode: %o\n", body->mode); | |
142 | ||
143 | if (body->eadatasize != 0) { | |
144 | mdc_update_max_ea_from_body(exp, body); | |
145 | ||
146 | eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD, | |
147 | body->eadatasize); | |
148 | if (eadata == NULL) | |
0a3bdb00 | 149 | return -EPROTO; |
d7e09d03 PT |
150 | } |
151 | ||
152 | if (body->valid & OBD_MD_FLRMTPERM) { | |
153 | struct mdt_remote_perm *perm; | |
154 | ||
155 | LASSERT(client_is_remote(exp)); | |
156 | perm = req_capsule_server_swab_get(pill, &RMF_ACL, | |
157 | lustre_swab_mdt_remote_perm); | |
158 | if (perm == NULL) | |
0a3bdb00 | 159 | return -EPROTO; |
d7e09d03 PT |
160 | } |
161 | ||
0a3bdb00 | 162 | return 0; |
d7e09d03 PT |
163 | } |
164 | ||
60ebee3b | 165 | static int mdc_getattr(struct obd_export *exp, struct md_op_data *op_data, |
d7e09d03 PT |
166 | struct ptlrpc_request **request) |
167 | { | |
168 | struct ptlrpc_request *req; | |
169 | int rc; | |
d7e09d03 PT |
170 | |
171 | /* Single MDS without an LMV case */ | |
172 | if (op_data->op_flags & MF_GET_MDT_IDX) { | |
173 | op_data->op_mds = 0; | |
0a3bdb00 | 174 | return 0; |
d7e09d03 PT |
175 | } |
176 | *request = NULL; | |
177 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR); | |
178 | if (req == NULL) | |
0a3bdb00 | 179 | return -ENOMEM; |
d7e09d03 | 180 | |
d7e09d03 PT |
181 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR); |
182 | if (rc) { | |
183 | ptlrpc_request_free(req); | |
0a3bdb00 | 184 | return rc; |
d7e09d03 PT |
185 | } |
186 | ||
ef2e0f55 OD |
187 | mdc_pack_body(req, &op_data->op_fid1, op_data->op_valid, |
188 | op_data->op_mode, -1, 0); | |
d7e09d03 PT |
189 | |
190 | req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, | |
191 | op_data->op_mode); | |
192 | if (op_data->op_valid & OBD_MD_FLRMTPERM) { | |
193 | LASSERT(client_is_remote(exp)); | |
194 | req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER, | |
195 | sizeof(struct mdt_remote_perm)); | |
196 | } | |
197 | ptlrpc_request_set_replen(req); | |
198 | ||
199 | rc = mdc_getattr_common(exp, req); | |
200 | if (rc) | |
201 | ptlrpc_req_finished(req); | |
202 | else | |
203 | *request = req; | |
0a3bdb00 | 204 | return rc; |
d7e09d03 PT |
205 | } |
206 | ||
60ebee3b | 207 | static int mdc_getattr_name(struct obd_export *exp, struct md_op_data *op_data, |
d7e09d03 PT |
208 | struct ptlrpc_request **request) |
209 | { | |
210 | struct ptlrpc_request *req; | |
211 | int rc; | |
d7e09d03 PT |
212 | |
213 | *request = NULL; | |
214 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
215 | &RQF_MDS_GETATTR_NAME); | |
216 | if (req == NULL) | |
0a3bdb00 | 217 | return -ENOMEM; |
d7e09d03 | 218 | |
d7e09d03 PT |
219 | req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT, |
220 | op_data->op_namelen + 1); | |
221 | ||
222 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR_NAME); | |
223 | if (rc) { | |
224 | ptlrpc_request_free(req); | |
0a3bdb00 | 225 | return rc; |
d7e09d03 PT |
226 | } |
227 | ||
ef2e0f55 OD |
228 | mdc_pack_body(req, &op_data->op_fid1, op_data->op_valid, |
229 | op_data->op_mode, op_data->op_suppgids[0], 0); | |
d7e09d03 PT |
230 | |
231 | if (op_data->op_name) { | |
232 | char *name = req_capsule_client_get(&req->rq_pill, &RMF_NAME); | |
7436d070 | 233 | |
d7e09d03 PT |
234 | LASSERT(strnlen(op_data->op_name, op_data->op_namelen) == |
235 | op_data->op_namelen); | |
236 | memcpy(name, op_data->op_name, op_data->op_namelen); | |
237 | } | |
238 | ||
239 | req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, | |
240 | op_data->op_mode); | |
241 | ptlrpc_request_set_replen(req); | |
242 | ||
243 | rc = mdc_getattr_common(exp, req); | |
244 | if (rc) | |
245 | ptlrpc_req_finished(req); | |
246 | else | |
247 | *request = req; | |
0a3bdb00 | 248 | return rc; |
d7e09d03 PT |
249 | } |
250 | ||
251 | static int mdc_is_subdir(struct obd_export *exp, | |
252 | const struct lu_fid *pfid, | |
253 | const struct lu_fid *cfid, | |
254 | struct ptlrpc_request **request) | |
255 | { | |
256 | struct ptlrpc_request *req; | |
257 | int rc; | |
258 | ||
d7e09d03 PT |
259 | *request = NULL; |
260 | req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), | |
261 | &RQF_MDS_IS_SUBDIR, LUSTRE_MDS_VERSION, | |
262 | MDS_IS_SUBDIR); | |
263 | if (req == NULL) | |
0a3bdb00 | 264 | return -ENOMEM; |
d7e09d03 PT |
265 | |
266 | mdc_is_subdir_pack(req, pfid, cfid, 0); | |
267 | ptlrpc_request_set_replen(req); | |
268 | ||
269 | rc = ptlrpc_queue_wait(req); | |
270 | if (rc && rc != -EREMOTE) | |
271 | ptlrpc_req_finished(req); | |
272 | else | |
273 | *request = req; | |
0a3bdb00 | 274 | return rc; |
d7e09d03 PT |
275 | } |
276 | ||
301af906 SM |
277 | static int mdc_xattr_common(struct obd_export *exp, |
278 | const struct req_format *fmt, | |
d7e09d03 | 279 | const struct lu_fid *fid, |
ef2e0f55 | 280 | int opcode, u64 valid, |
d7e09d03 PT |
281 | const char *xattr_name, const char *input, |
282 | int input_size, int output_size, int flags, | |
283 | __u32 suppgid, struct ptlrpc_request **request) | |
284 | { | |
285 | struct ptlrpc_request *req; | |
286 | int xattr_namelen = 0; | |
287 | char *tmp; | |
288 | int rc; | |
d7e09d03 PT |
289 | |
290 | *request = NULL; | |
291 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), fmt); | |
292 | if (req == NULL) | |
0a3bdb00 | 293 | return -ENOMEM; |
d7e09d03 | 294 | |
d7e09d03 PT |
295 | if (xattr_name) { |
296 | xattr_namelen = strlen(xattr_name) + 1; | |
297 | req_capsule_set_size(&req->rq_pill, &RMF_NAME, RCL_CLIENT, | |
298 | xattr_namelen); | |
299 | } | |
300 | if (input_size) { | |
301 | LASSERT(input); | |
302 | req_capsule_set_size(&req->rq_pill, &RMF_EADATA, RCL_CLIENT, | |
303 | input_size); | |
304 | } | |
305 | ||
e93a3082 AP |
306 | /* Flush local XATTR locks to get rid of a possible cancel RPC */ |
307 | if (opcode == MDS_REINT && fid_is_sane(fid) && | |
308 | exp->exp_connect_data.ocd_ibits_known & MDS_INODELOCK_XATTR) { | |
309 | LIST_HEAD(cancels); | |
310 | int count; | |
311 | ||
312 | /* Without that packing would fail */ | |
313 | if (input_size == 0) | |
314 | req_capsule_set_size(&req->rq_pill, &RMF_EADATA, | |
315 | RCL_CLIENT, 0); | |
316 | ||
317 | count = mdc_resource_get_unused(exp, fid, | |
318 | &cancels, LCK_EX, | |
319 | MDS_INODELOCK_XATTR); | |
320 | ||
321 | rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count); | |
322 | if (rc) { | |
323 | ptlrpc_request_free(req); | |
324 | return rc; | |
325 | } | |
326 | } else { | |
327 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, opcode); | |
328 | if (rc) { | |
329 | ptlrpc_request_free(req); | |
330 | return rc; | |
331 | } | |
d7e09d03 PT |
332 | } |
333 | ||
334 | if (opcode == MDS_REINT) { | |
335 | struct mdt_rec_setxattr *rec; | |
336 | ||
337 | CLASSERT(sizeof(struct mdt_rec_setxattr) == | |
338 | sizeof(struct mdt_rec_reint)); | |
339 | rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT); | |
340 | rec->sx_opcode = REINT_SETXATTR; | |
4b1a25f0 PT |
341 | rec->sx_fsuid = from_kuid(&init_user_ns, current_fsuid()); |
342 | rec->sx_fsgid = from_kgid(&init_user_ns, current_fsgid()); | |
d7e09d03 PT |
343 | rec->sx_cap = cfs_curproc_cap_pack(); |
344 | rec->sx_suppgid1 = suppgid; | |
345 | rec->sx_suppgid2 = -1; | |
346 | rec->sx_fid = *fid; | |
347 | rec->sx_valid = valid | OBD_MD_FLCTIME; | |
14e3f92a | 348 | rec->sx_time = ktime_get_real_seconds(); |
d7e09d03 PT |
349 | rec->sx_size = output_size; |
350 | rec->sx_flags = flags; | |
351 | ||
d7e09d03 | 352 | } else { |
ef2e0f55 | 353 | mdc_pack_body(req, fid, valid, output_size, suppgid, flags); |
d7e09d03 PT |
354 | } |
355 | ||
356 | if (xattr_name) { | |
357 | tmp = req_capsule_client_get(&req->rq_pill, &RMF_NAME); | |
358 | memcpy(tmp, xattr_name, xattr_namelen); | |
359 | } | |
360 | if (input_size) { | |
361 | tmp = req_capsule_client_get(&req->rq_pill, &RMF_EADATA); | |
362 | memcpy(tmp, input, input_size); | |
363 | } | |
364 | ||
365 | if (req_capsule_has_field(&req->rq_pill, &RMF_EADATA, RCL_SERVER)) | |
366 | req_capsule_set_size(&req->rq_pill, &RMF_EADATA, | |
367 | RCL_SERVER, output_size); | |
368 | ptlrpc_request_set_replen(req); | |
369 | ||
370 | /* make rpc */ | |
371 | if (opcode == MDS_REINT) | |
372 | mdc_get_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL); | |
373 | ||
374 | rc = ptlrpc_queue_wait(req); | |
375 | ||
376 | if (opcode == MDS_REINT) | |
377 | mdc_put_rpc_lock(exp->exp_obd->u.cli.cl_rpc_lock, NULL); | |
378 | ||
379 | if (rc) | |
380 | ptlrpc_req_finished(req); | |
381 | else | |
382 | *request = req; | |
0a3bdb00 | 383 | return rc; |
d7e09d03 PT |
384 | } |
385 | ||
60ebee3b | 386 | static int mdc_setxattr(struct obd_export *exp, const struct lu_fid *fid, |
ef2e0f55 OD |
387 | u64 valid, const char *xattr_name, |
388 | const char *input, int input_size, int output_size, | |
389 | int flags, __u32 suppgid, | |
390 | struct ptlrpc_request **request) | |
d7e09d03 PT |
391 | { |
392 | return mdc_xattr_common(exp, &RQF_MDS_REINT_SETXATTR, | |
ef2e0f55 | 393 | fid, MDS_REINT, valid, xattr_name, |
d7e09d03 PT |
394 | input, input_size, output_size, flags, |
395 | suppgid, request); | |
396 | } | |
397 | ||
60ebee3b | 398 | static int mdc_getxattr(struct obd_export *exp, const struct lu_fid *fid, |
ef2e0f55 OD |
399 | u64 valid, const char *xattr_name, |
400 | const char *input, int input_size, int output_size, | |
401 | int flags, struct ptlrpc_request **request) | |
d7e09d03 PT |
402 | { |
403 | return mdc_xattr_common(exp, &RQF_MDS_GETXATTR, | |
ef2e0f55 | 404 | fid, MDS_GETXATTR, valid, xattr_name, |
d7e09d03 PT |
405 | input, input_size, output_size, flags, |
406 | -1, request); | |
407 | } | |
408 | ||
409 | #ifdef CONFIG_FS_POSIX_ACL | |
410 | static int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md) | |
411 | { | |
412 | struct req_capsule *pill = &req->rq_pill; | |
413 | struct mdt_body *body = md->body; | |
414 | struct posix_acl *acl; | |
415 | void *buf; | |
416 | int rc; | |
d7e09d03 PT |
417 | |
418 | if (!body->aclsize) | |
0a3bdb00 | 419 | return 0; |
d7e09d03 PT |
420 | |
421 | buf = req_capsule_server_sized_get(pill, &RMF_ACL, body->aclsize); | |
422 | ||
423 | if (!buf) | |
0a3bdb00 | 424 | return -EPROTO; |
d7e09d03 PT |
425 | |
426 | acl = posix_acl_from_xattr(&init_user_ns, buf, body->aclsize); | |
f4289400 CM |
427 | if (acl == NULL) |
428 | return 0; | |
429 | ||
d7e09d03 PT |
430 | if (IS_ERR(acl)) { |
431 | rc = PTR_ERR(acl); | |
432 | CERROR("convert xattr to acl: %d\n", rc); | |
0a3bdb00 | 433 | return rc; |
d7e09d03 PT |
434 | } |
435 | ||
436 | rc = posix_acl_valid(acl); | |
437 | if (rc) { | |
438 | CERROR("validate acl: %d\n", rc); | |
439 | posix_acl_release(acl); | |
0a3bdb00 | 440 | return rc; |
d7e09d03 PT |
441 | } |
442 | ||
443 | md->posix_acl = acl; | |
0a3bdb00 | 444 | return 0; |
d7e09d03 PT |
445 | } |
446 | #else | |
447 | #define mdc_unpack_acl(req, md) 0 | |
448 | #endif | |
449 | ||
450 | int mdc_get_lustre_md(struct obd_export *exp, struct ptlrpc_request *req, | |
451 | struct obd_export *dt_exp, struct obd_export *md_exp, | |
452 | struct lustre_md *md) | |
453 | { | |
454 | struct req_capsule *pill = &req->rq_pill; | |
455 | int rc; | |
d7e09d03 PT |
456 | |
457 | LASSERT(md); | |
458 | memset(md, 0, sizeof(*md)); | |
459 | ||
460 | md->body = req_capsule_server_get(pill, &RMF_MDT_BODY); | |
461 | LASSERT(md->body != NULL); | |
462 | ||
463 | if (md->body->valid & OBD_MD_FLEASIZE) { | |
464 | int lmmsize; | |
465 | struct lov_mds_md *lmm; | |
466 | ||
467 | if (!S_ISREG(md->body->mode)) { | |
ee990b33 SM |
468 | CDEBUG(D_INFO, |
469 | "OBD_MD_FLEASIZE set, should be a regular file, but is not\n"); | |
d5fdc207 JL |
470 | rc = -EPROTO; |
471 | goto out; | |
d7e09d03 PT |
472 | } |
473 | ||
474 | if (md->body->eadatasize == 0) { | |
ee990b33 SM |
475 | CDEBUG(D_INFO, |
476 | "OBD_MD_FLEASIZE set, but eadatasize 0\n"); | |
d5fdc207 JL |
477 | rc = -EPROTO; |
478 | goto out; | |
d7e09d03 PT |
479 | } |
480 | lmmsize = md->body->eadatasize; | |
481 | lmm = req_capsule_server_sized_get(pill, &RMF_MDT_MD, lmmsize); | |
d5fdc207 JL |
482 | if (!lmm) { |
483 | rc = -EPROTO; | |
484 | goto out; | |
485 | } | |
d7e09d03 PT |
486 | |
487 | rc = obd_unpackmd(dt_exp, &md->lsm, lmm, lmmsize); | |
488 | if (rc < 0) | |
d5fdc207 | 489 | goto out; |
d7e09d03 PT |
490 | |
491 | if (rc < sizeof(*md->lsm)) { | |
ee990b33 SM |
492 | CDEBUG(D_INFO, |
493 | "lsm size too small: rc < sizeof (*md->lsm) (%d < %d)\n", | |
d7e09d03 | 494 | rc, (int)sizeof(*md->lsm)); |
d5fdc207 JL |
495 | rc = -EPROTO; |
496 | goto out; | |
d7e09d03 PT |
497 | } |
498 | ||
499 | } else if (md->body->valid & OBD_MD_FLDIREA) { | |
500 | int lmvsize; | |
501 | struct lov_mds_md *lmv; | |
502 | ||
301af906 | 503 | if (!S_ISDIR(md->body->mode)) { |
ee990b33 SM |
504 | CDEBUG(D_INFO, |
505 | "OBD_MD_FLDIREA set, should be a directory, but is not\n"); | |
d5fdc207 JL |
506 | rc = -EPROTO; |
507 | goto out; | |
d7e09d03 PT |
508 | } |
509 | ||
510 | if (md->body->eadatasize == 0) { | |
ee990b33 SM |
511 | CDEBUG(D_INFO, |
512 | "OBD_MD_FLDIREA is set, but eadatasize 0\n"); | |
0a3bdb00 | 513 | return -EPROTO; |
d7e09d03 PT |
514 | } |
515 | if (md->body->valid & OBD_MD_MEA) { | |
516 | lmvsize = md->body->eadatasize; | |
517 | lmv = req_capsule_server_sized_get(pill, &RMF_MDT_MD, | |
518 | lmvsize); | |
d5fdc207 JL |
519 | if (!lmv) { |
520 | rc = -EPROTO; | |
521 | goto out; | |
522 | } | |
d7e09d03 PT |
523 | |
524 | rc = obd_unpackmd(md_exp, (void *)&md->mea, lmv, | |
525 | lmvsize); | |
526 | if (rc < 0) | |
d5fdc207 | 527 | goto out; |
d7e09d03 PT |
528 | |
529 | if (rc < sizeof(*md->mea)) { | |
ee990b33 SM |
530 | CDEBUG(D_INFO, |
531 | "size too small: rc < sizeof(*md->mea) (%d < %d)\n", | |
d7e09d03 | 532 | rc, (int)sizeof(*md->mea)); |
d5fdc207 JL |
533 | rc = -EPROTO; |
534 | goto out; | |
d7e09d03 PT |
535 | } |
536 | } | |
537 | } | |
538 | rc = 0; | |
539 | ||
540 | if (md->body->valid & OBD_MD_FLRMTPERM) { | |
541 | /* remote permission */ | |
542 | LASSERT(client_is_remote(exp)); | |
543 | md->remote_perm = req_capsule_server_swab_get(pill, &RMF_ACL, | |
544 | lustre_swab_mdt_remote_perm); | |
d5fdc207 JL |
545 | if (!md->remote_perm) { |
546 | rc = -EPROTO; | |
547 | goto out; | |
548 | } | |
78dd0798 | 549 | } else if (md->body->valid & OBD_MD_FLACL) { |
d7e09d03 PT |
550 | /* for ACL, it's possible that FLACL is set but aclsize is zero. |
551 | * only when aclsize != 0 there's an actual segment for ACL | |
552 | * in reply buffer. | |
553 | */ | |
554 | if (md->body->aclsize) { | |
555 | rc = mdc_unpack_acl(req, md); | |
556 | if (rc) | |
d5fdc207 | 557 | goto out; |
d7e09d03 PT |
558 | #ifdef CONFIG_FS_POSIX_ACL |
559 | } else { | |
560 | md->posix_acl = NULL; | |
561 | #endif | |
562 | } | |
563 | } | |
d7e09d03 | 564 | |
d7e09d03 PT |
565 | out: |
566 | if (rc) { | |
d7e09d03 PT |
567 | #ifdef CONFIG_FS_POSIX_ACL |
568 | posix_acl_release(md->posix_acl); | |
569 | #endif | |
570 | if (md->lsm) | |
571 | obd_free_memmd(dt_exp, &md->lsm); | |
572 | } | |
573 | return rc; | |
574 | } | |
575 | ||
576 | int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md) | |
577 | { | |
0a3bdb00 | 578 | return 0; |
d7e09d03 PT |
579 | } |
580 | ||
581 | /** | |
582 | * Handles both OPEN and SETATTR RPCs for OPEN-CLOSE and SETATTR-DONE_WRITING | |
583 | * RPC chains. | |
584 | */ | |
585 | void mdc_replay_open(struct ptlrpc_request *req) | |
586 | { | |
587 | struct md_open_data *mod = req->rq_cb_data; | |
588 | struct ptlrpc_request *close_req; | |
589 | struct obd_client_handle *och; | |
590 | struct lustre_handle old; | |
591 | struct mdt_body *body; | |
d7e09d03 PT |
592 | |
593 | if (mod == NULL) { | |
594 | DEBUG_REQ(D_ERROR, req, | |
595 | "Can't properly replay without open data."); | |
d7e09d03 PT |
596 | return; |
597 | } | |
598 | ||
599 | body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
600 | LASSERT(body != NULL); | |
601 | ||
602 | och = mod->mod_och; | |
603 | if (och != NULL) { | |
604 | struct lustre_handle *file_fh; | |
605 | ||
606 | LASSERT(och->och_magic == OBD_CLIENT_HANDLE_MAGIC); | |
607 | ||
608 | file_fh = &och->och_fh; | |
55f5a824 | 609 | CDEBUG(D_HA, "updating handle from %#llx to %#llx\n", |
d7e09d03 PT |
610 | file_fh->cookie, body->handle.cookie); |
611 | old = *file_fh; | |
612 | *file_fh = body->handle; | |
613 | } | |
614 | close_req = mod->mod_close_req; | |
615 | if (close_req != NULL) { | |
616 | __u32 opc = lustre_msg_get_opc(close_req->rq_reqmsg); | |
617 | struct mdt_ioepoch *epoch; | |
618 | ||
619 | LASSERT(opc == MDS_CLOSE || opc == MDS_DONE_WRITING); | |
620 | epoch = req_capsule_client_get(&close_req->rq_pill, | |
621 | &RMF_MDT_EPOCH); | |
622 | LASSERT(epoch); | |
623 | ||
624 | if (och != NULL) | |
625 | LASSERT(!memcmp(&old, &epoch->handle, sizeof(old))); | |
626 | DEBUG_REQ(D_HA, close_req, "updating close body with new fh"); | |
627 | epoch->handle = body->handle; | |
628 | } | |
d7e09d03 PT |
629 | } |
630 | ||
631 | void mdc_commit_open(struct ptlrpc_request *req) | |
632 | { | |
633 | struct md_open_data *mod = req->rq_cb_data; | |
7436d070 | 634 | |
d7e09d03 PT |
635 | if (mod == NULL) |
636 | return; | |
637 | ||
638 | /** | |
639 | * No need to touch md_open_data::mod_och, it holds a reference on | |
640 | * \var mod and will zero references to each other, \var mod will be | |
641 | * freed after that when md_open_data::mod_och will put the reference. | |
642 | */ | |
643 | ||
644 | /** | |
645 | * Do not let open request to disappear as it still may be needed | |
646 | * for close rpc to happen (it may happen on evict only, otherwise | |
647 | * ptlrpc_request::rq_replay does not let mdc_commit_open() to be | |
648 | * called), just mark this rpc as committed to distinguish these 2 | |
649 | * cases, see mdc_close() for details. The open request reference will | |
650 | * be put along with freeing \var mod. | |
651 | */ | |
652 | ptlrpc_request_addref(req); | |
653 | spin_lock(&req->rq_lock); | |
654 | req->rq_committed = 1; | |
655 | spin_unlock(&req->rq_lock); | |
656 | req->rq_cb_data = NULL; | |
657 | obd_mod_put(mod); | |
658 | } | |
659 | ||
660 | int mdc_set_open_replay_data(struct obd_export *exp, | |
661 | struct obd_client_handle *och, | |
63d42578 | 662 | struct lookup_intent *it) |
d7e09d03 PT |
663 | { |
664 | struct md_open_data *mod; | |
665 | struct mdt_rec_create *rec; | |
666 | struct mdt_body *body; | |
63d42578 | 667 | struct ptlrpc_request *open_req = it->d.lustre.it_data; |
d7e09d03 | 668 | struct obd_import *imp = open_req->rq_import; |
d7e09d03 PT |
669 | |
670 | if (!open_req->rq_replay) | |
0a3bdb00 | 671 | return 0; |
d7e09d03 PT |
672 | |
673 | rec = req_capsule_client_get(&open_req->rq_pill, &RMF_REC_REINT); | |
674 | body = req_capsule_server_get(&open_req->rq_pill, &RMF_MDT_BODY); | |
675 | LASSERT(rec != NULL); | |
676 | /* Incoming message in my byte order (it's been swabbed). */ | |
677 | /* Outgoing messages always in my byte order. */ | |
678 | LASSERT(body != NULL); | |
679 | ||
680 | /* Only if the import is replayable, we set replay_open data */ | |
681 | if (och && imp->imp_replayable) { | |
682 | mod = obd_mod_alloc(); | |
683 | if (mod == NULL) { | |
684 | DEBUG_REQ(D_ERROR, open_req, | |
685 | "Can't allocate md_open_data"); | |
0a3bdb00 | 686 | return 0; |
d7e09d03 PT |
687 | } |
688 | ||
689 | /** | |
690 | * Take a reference on \var mod, to be freed on mdc_close(). | |
691 | * It protects \var mod from being freed on eviction (commit | |
692 | * callback is called despite rq_replay flag). | |
693 | * Another reference for \var och. | |
694 | */ | |
695 | obd_mod_get(mod); | |
696 | obd_mod_get(mod); | |
697 | ||
698 | spin_lock(&open_req->rq_lock); | |
699 | och->och_mod = mod; | |
700 | mod->mod_och = och; | |
63d42578 HZ |
701 | mod->mod_is_create = it_disposition(it, DISP_OPEN_CREATE) || |
702 | it_disposition(it, DISP_OPEN_STRIPE); | |
d7e09d03 PT |
703 | mod->mod_open_req = open_req; |
704 | open_req->rq_cb_data = mod; | |
705 | open_req->rq_commit_cb = mdc_commit_open; | |
706 | spin_unlock(&open_req->rq_lock); | |
707 | } | |
708 | ||
709 | rec->cr_fid2 = body->fid1; | |
710 | rec->cr_ioepoch = body->ioepoch; | |
711 | rec->cr_old_handle.cookie = body->handle.cookie; | |
712 | open_req->rq_replay_cb = mdc_replay_open; | |
713 | if (!fid_is_sane(&body->fid1)) { | |
ee990b33 SM |
714 | DEBUG_REQ(D_ERROR, open_req, |
715 | "Saving replay request with insane fid"); | |
d7e09d03 PT |
716 | LBUG(); |
717 | } | |
718 | ||
719 | DEBUG_REQ(D_RPCTRACE, open_req, "Set up open replay data"); | |
0a3bdb00 | 720 | return 0; |
d7e09d03 PT |
721 | } |
722 | ||
63d42578 HZ |
723 | static void mdc_free_open(struct md_open_data *mod) |
724 | { | |
725 | int committed = 0; | |
726 | ||
727 | if (mod->mod_is_create == 0 && | |
728 | imp_connect_disp_stripe(mod->mod_open_req->rq_import)) | |
729 | committed = 1; | |
730 | ||
731 | LASSERT(mod->mod_open_req->rq_replay == 0); | |
732 | ||
733 | DEBUG_REQ(D_RPCTRACE, mod->mod_open_req, "free open request\n"); | |
734 | ||
735 | ptlrpc_request_committed(mod->mod_open_req, committed); | |
736 | if (mod->mod_close_req) | |
737 | ptlrpc_request_committed(mod->mod_close_req, committed); | |
738 | } | |
739 | ||
d7e09d03 PT |
740 | int mdc_clear_open_replay_data(struct obd_export *exp, |
741 | struct obd_client_handle *och) | |
742 | { | |
743 | struct md_open_data *mod = och->och_mod; | |
d7e09d03 PT |
744 | |
745 | /** | |
746 | * It is possible to not have \var mod in a case of eviction between | |
747 | * lookup and ll_file_open(). | |
748 | **/ | |
749 | if (mod == NULL) | |
0a3bdb00 | 750 | return 0; |
d7e09d03 PT |
751 | |
752 | LASSERT(mod != LP_POISON); | |
63d42578 HZ |
753 | LASSERT(mod->mod_open_req != NULL); |
754 | mdc_free_open(mod); | |
d7e09d03 PT |
755 | |
756 | mod->mod_och = NULL; | |
757 | och->och_mod = NULL; | |
758 | obd_mod_put(mod); | |
759 | ||
0a3bdb00 | 760 | return 0; |
d7e09d03 PT |
761 | } |
762 | ||
763 | /* Prepares the request for the replay by the given reply */ | |
764 | static void mdc_close_handle_reply(struct ptlrpc_request *req, | |
765 | struct md_op_data *op_data, int rc) { | |
766 | struct mdt_body *repbody; | |
767 | struct mdt_ioepoch *epoch; | |
768 | ||
769 | if (req && rc == -EAGAIN) { | |
770 | repbody = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
771 | epoch = req_capsule_client_get(&req->rq_pill, &RMF_MDT_EPOCH); | |
772 | ||
773 | epoch->flags |= MF_SOM_AU; | |
774 | if (repbody->valid & OBD_MD_FLGETATTRLOCK) | |
775 | op_data->op_flags |= MF_GETATTR_LOCK; | |
776 | } | |
777 | } | |
778 | ||
f6219c16 LC |
779 | static int mdc_close(struct obd_export *exp, struct md_op_data *op_data, |
780 | struct md_open_data *mod, struct ptlrpc_request **request) | |
d7e09d03 PT |
781 | { |
782 | struct obd_device *obd = class_exp2obd(exp); | |
783 | struct ptlrpc_request *req; | |
48d23e61 JX |
784 | struct req_format *req_fmt; |
785 | int rc; | |
786 | int saved_rc = 0; | |
787 | ||
48d23e61 JX |
788 | req_fmt = &RQF_MDS_CLOSE; |
789 | if (op_data->op_bias & MDS_HSM_RELEASE) { | |
790 | req_fmt = &RQF_MDS_RELEASE_CLOSE; | |
791 | ||
792 | /* allocate a FID for volatile file */ | |
793 | rc = mdc_fid_alloc(exp, &op_data->op_fid2, op_data); | |
794 | if (rc < 0) { | |
795 | CERROR("%s: "DFID" failed to allocate FID: %d\n", | |
796 | obd->obd_name, PFID(&op_data->op_fid1), rc); | |
797 | /* save the errcode and proceed to close */ | |
798 | saved_rc = rc; | |
799 | } | |
800 | } | |
d7e09d03 PT |
801 | |
802 | *request = NULL; | |
48d23e61 | 803 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), req_fmt); |
d7e09d03 | 804 | if (req == NULL) |
0a3bdb00 | 805 | return -ENOMEM; |
d7e09d03 | 806 | |
d7e09d03 PT |
807 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_CLOSE); |
808 | if (rc) { | |
809 | ptlrpc_request_free(req); | |
0a3bdb00 | 810 | return rc; |
d7e09d03 PT |
811 | } |
812 | ||
813 | /* To avoid a livelock (bug 7034), we need to send CLOSE RPCs to a | |
814 | * portal whose threads are not taking any DLM locks and are therefore | |
815 | * always progressing */ | |
816 | req->rq_request_portal = MDS_READPAGE_PORTAL; | |
817 | ptlrpc_at_set_req_timeout(req); | |
818 | ||
819 | /* Ensure that this close's handle is fixed up during replay. */ | |
820 | if (likely(mod != NULL)) { | |
821 | LASSERTF(mod->mod_open_req != NULL && | |
822 | mod->mod_open_req->rq_type != LI_POISON, | |
823 | "POISONED open %p!\n", mod->mod_open_req); | |
824 | ||
825 | mod->mod_close_req = req; | |
826 | ||
827 | DEBUG_REQ(D_HA, mod->mod_open_req, "matched open"); | |
828 | /* We no longer want to preserve this open for replay even | |
829 | * though the open was committed. b=3632, b=3633 */ | |
830 | spin_lock(&mod->mod_open_req->rq_lock); | |
831 | mod->mod_open_req->rq_replay = 0; | |
832 | spin_unlock(&mod->mod_open_req->rq_lock); | |
833 | } else { | |
e5e663ae SM |
834 | CDEBUG(D_HA, |
835 | "couldn't find open req; expecting close error\n"); | |
d7e09d03 PT |
836 | } |
837 | ||
838 | mdc_close_pack(req, op_data); | |
839 | ||
840 | req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER, | |
44779340 | 841 | obd->u.cli.cl_default_mds_easize); |
d7e09d03 | 842 | req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER, |
44779340 | 843 | obd->u.cli.cl_default_mds_cookiesize); |
d7e09d03 PT |
844 | |
845 | ptlrpc_request_set_replen(req); | |
846 | ||
847 | mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL); | |
848 | rc = ptlrpc_queue_wait(req); | |
849 | mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL); | |
850 | ||
851 | if (req->rq_repmsg == NULL) { | |
852 | CDEBUG(D_RPCTRACE, "request failed to send: %p, %d\n", req, | |
853 | req->rq_status); | |
854 | if (rc == 0) | |
855 | rc = req->rq_status ?: -EIO; | |
856 | } else if (rc == 0 || rc == -EAGAIN) { | |
857 | struct mdt_body *body; | |
858 | ||
859 | rc = lustre_msg_get_status(req->rq_repmsg); | |
860 | if (lustre_msg_get_type(req->rq_repmsg) == PTL_RPC_MSG_ERR) { | |
ee990b33 SM |
861 | DEBUG_REQ(D_ERROR, req, |
862 | "type == PTL_RPC_MSG_ERR, err = %d", rc); | |
d7e09d03 PT |
863 | if (rc > 0) |
864 | rc = -rc; | |
865 | } | |
866 | body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); | |
867 | if (body == NULL) | |
868 | rc = -EPROTO; | |
869 | } else if (rc == -ESTALE) { | |
870 | /** | |
871 | * it can be allowed error after 3633 if open was committed and | |
872 | * server failed before close was sent. Let's check if mod | |
873 | * exists and return no error in that case | |
874 | */ | |
875 | if (mod) { | |
876 | DEBUG_REQ(D_HA, req, "Reset ESTALE = %d", rc); | |
877 | LASSERT(mod->mod_open_req != NULL); | |
878 | if (mod->mod_open_req->rq_committed) | |
879 | rc = 0; | |
880 | } | |
881 | } | |
882 | ||
883 | if (mod) { | |
884 | if (rc != 0) | |
885 | mod->mod_close_req = NULL; | |
886 | /* Since now, mod is accessed through open_req only, | |
887 | * thus close req does not keep a reference on mod anymore. */ | |
888 | obd_mod_put(mod); | |
889 | } | |
890 | *request = req; | |
891 | mdc_close_handle_reply(req, op_data, rc); | |
48d23e61 | 892 | return rc < 0 ? rc : saved_rc; |
d7e09d03 PT |
893 | } |
894 | ||
f6219c16 LC |
895 | static int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data, |
896 | struct md_open_data *mod) | |
d7e09d03 PT |
897 | { |
898 | struct obd_device *obd = class_exp2obd(exp); | |
899 | struct ptlrpc_request *req; | |
900 | int rc; | |
d7e09d03 PT |
901 | |
902 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
903 | &RQF_MDS_DONE_WRITING); | |
904 | if (req == NULL) | |
0a3bdb00 | 905 | return -ENOMEM; |
d7e09d03 | 906 | |
d7e09d03 PT |
907 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_DONE_WRITING); |
908 | if (rc) { | |
909 | ptlrpc_request_free(req); | |
0a3bdb00 | 910 | return rc; |
d7e09d03 PT |
911 | } |
912 | ||
913 | if (mod != NULL) { | |
914 | LASSERTF(mod->mod_open_req != NULL && | |
915 | mod->mod_open_req->rq_type != LI_POISON, | |
916 | "POISONED setattr %p!\n", mod->mod_open_req); | |
917 | ||
918 | mod->mod_close_req = req; | |
919 | DEBUG_REQ(D_HA, mod->mod_open_req, "matched setattr"); | |
920 | /* We no longer want to preserve this setattr for replay even | |
921 | * though the open was committed. b=3632, b=3633 */ | |
922 | spin_lock(&mod->mod_open_req->rq_lock); | |
923 | mod->mod_open_req->rq_replay = 0; | |
924 | spin_unlock(&mod->mod_open_req->rq_lock); | |
925 | } | |
926 | ||
927 | mdc_close_pack(req, op_data); | |
928 | ptlrpc_request_set_replen(req); | |
929 | ||
930 | mdc_get_rpc_lock(obd->u.cli.cl_close_lock, NULL); | |
931 | rc = ptlrpc_queue_wait(req); | |
932 | mdc_put_rpc_lock(obd->u.cli.cl_close_lock, NULL); | |
933 | ||
934 | if (rc == -ESTALE) { | |
935 | /** | |
936 | * it can be allowed error after 3633 if open or setattr were | |
937 | * committed and server failed before close was sent. | |
938 | * Let's check if mod exists and return no error in that case | |
939 | */ | |
940 | if (mod) { | |
941 | LASSERT(mod->mod_open_req != NULL); | |
942 | if (mod->mod_open_req->rq_committed) | |
943 | rc = 0; | |
944 | } | |
945 | } | |
946 | ||
947 | if (mod) { | |
948 | if (rc != 0) | |
949 | mod->mod_close_req = NULL; | |
63d42578 HZ |
950 | LASSERT(mod->mod_open_req != NULL); |
951 | mdc_free_open(mod); | |
952 | ||
d7e09d03 PT |
953 | /* Since now, mod is accessed through setattr req only, |
954 | * thus DW req does not keep a reference on mod anymore. */ | |
955 | obd_mod_put(mod); | |
956 | } | |
957 | ||
958 | mdc_close_handle_reply(req, op_data, rc); | |
959 | ptlrpc_req_finished(req); | |
0a3bdb00 | 960 | return rc; |
d7e09d03 PT |
961 | } |
962 | ||
f6219c16 LC |
963 | static int mdc_readpage(struct obd_export *exp, struct md_op_data *op_data, |
964 | struct page **pages, struct ptlrpc_request **request) | |
d7e09d03 PT |
965 | { |
966 | struct ptlrpc_request *req; | |
967 | struct ptlrpc_bulk_desc *desc; | |
968 | int i; | |
969 | wait_queue_head_t waitq; | |
970 | int resends = 0; | |
971 | struct l_wait_info lwi; | |
972 | int rc; | |
d7e09d03 PT |
973 | |
974 | *request = NULL; | |
975 | init_waitqueue_head(&waitq); | |
976 | ||
977 | restart_bulk: | |
978 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_READPAGE); | |
979 | if (req == NULL) | |
0a3bdb00 | 980 | return -ENOMEM; |
d7e09d03 | 981 | |
d7e09d03 PT |
982 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_READPAGE); |
983 | if (rc) { | |
984 | ptlrpc_request_free(req); | |
0a3bdb00 | 985 | return rc; |
d7e09d03 PT |
986 | } |
987 | ||
988 | req->rq_request_portal = MDS_READPAGE_PORTAL; | |
989 | ptlrpc_at_set_req_timeout(req); | |
990 | ||
991 | desc = ptlrpc_prep_bulk_imp(req, op_data->op_npages, 1, BULK_PUT_SINK, | |
992 | MDS_BULK_PORTAL); | |
993 | if (desc == NULL) { | |
994 | ptlrpc_request_free(req); | |
0a3bdb00 | 995 | return -ENOMEM; |
d7e09d03 PT |
996 | } |
997 | ||
998 | /* NB req now owns desc and will free it when it gets freed */ | |
999 | for (i = 0; i < op_data->op_npages; i++) | |
1000 | ptlrpc_prep_bulk_page_pin(desc, pages[i], 0, PAGE_CACHE_SIZE); | |
1001 | ||
1002 | mdc_readdir_pack(req, op_data->op_offset, | |
1003 | PAGE_CACHE_SIZE * op_data->op_npages, | |
ef2e0f55 | 1004 | &op_data->op_fid1); |
d7e09d03 PT |
1005 | |
1006 | ptlrpc_request_set_replen(req); | |
1007 | rc = ptlrpc_queue_wait(req); | |
1008 | if (rc) { | |
1009 | ptlrpc_req_finished(req); | |
1010 | if (rc != -ETIMEDOUT) | |
0a3bdb00 | 1011 | return rc; |
d7e09d03 PT |
1012 | |
1013 | resends++; | |
1014 | if (!client_should_resend(resends, &exp->exp_obd->u.cli)) { | |
1015 | CERROR("too many resend retries, returning error\n"); | |
0a3bdb00 | 1016 | return -EIO; |
d7e09d03 | 1017 | } |
e5e663ae SM |
1018 | lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(resends), |
1019 | NULL, NULL, NULL); | |
d7e09d03 PT |
1020 | l_wait_event(waitq, 0, &lwi); |
1021 | ||
1022 | goto restart_bulk; | |
1023 | } | |
1024 | ||
1025 | rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk, | |
1026 | req->rq_bulk->bd_nob_transferred); | |
1027 | if (rc < 0) { | |
1028 | ptlrpc_req_finished(req); | |
0a3bdb00 | 1029 | return rc; |
d7e09d03 PT |
1030 | } |
1031 | ||
1032 | if (req->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK) { | |
1033 | CERROR("Unexpected # bytes transferred: %d (%ld expected)\n", | |
1034 | req->rq_bulk->bd_nob_transferred, | |
1035 | PAGE_CACHE_SIZE * op_data->op_npages); | |
1036 | ptlrpc_req_finished(req); | |
0a3bdb00 | 1037 | return -EPROTO; |
d7e09d03 PT |
1038 | } |
1039 | ||
1040 | *request = req; | |
0a3bdb00 | 1041 | return 0; |
d7e09d03 PT |
1042 | } |
1043 | ||
1044 | static int mdc_statfs(const struct lu_env *env, | |
1045 | struct obd_export *exp, struct obd_statfs *osfs, | |
1046 | __u64 max_age, __u32 flags) | |
1047 | { | |
1048 | struct obd_device *obd = class_exp2obd(exp); | |
1049 | struct ptlrpc_request *req; | |
1050 | struct obd_statfs *msfs; | |
1051 | struct obd_import *imp = NULL; | |
1052 | int rc; | |
d7e09d03 PT |
1053 | |
1054 | /* | |
1055 | * Since the request might also come from lprocfs, so we need | |
1056 | * sync this with client_disconnect_export Bug15684 | |
1057 | */ | |
1058 | down_read(&obd->u.cli.cl_sem); | |
1059 | if (obd->u.cli.cl_import) | |
1060 | imp = class_import_get(obd->u.cli.cl_import); | |
1061 | up_read(&obd->u.cli.cl_sem); | |
1062 | if (!imp) | |
0a3bdb00 | 1063 | return -ENODEV; |
d7e09d03 PT |
1064 | |
1065 | req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_STATFS, | |
1066 | LUSTRE_MDS_VERSION, MDS_STATFS); | |
d5fdc207 JL |
1067 | if (req == NULL) { |
1068 | rc = -ENOMEM; | |
1069 | goto output; | |
1070 | } | |
d7e09d03 PT |
1071 | |
1072 | ptlrpc_request_set_replen(req); | |
1073 | ||
1074 | if (flags & OBD_STATFS_NODELAY) { | |
1075 | /* procfs requests not want stay in wait for avoid deadlock */ | |
1076 | req->rq_no_resend = 1; | |
1077 | req->rq_no_delay = 1; | |
1078 | } | |
1079 | ||
1080 | rc = ptlrpc_queue_wait(req); | |
1081 | if (rc) { | |
1082 | /* check connection error first */ | |
1083 | if (imp->imp_connect_error) | |
1084 | rc = imp->imp_connect_error; | |
d5fdc207 | 1085 | goto out; |
d7e09d03 PT |
1086 | } |
1087 | ||
1088 | msfs = req_capsule_server_get(&req->rq_pill, &RMF_OBD_STATFS); | |
d5fdc207 JL |
1089 | if (msfs == NULL) { |
1090 | rc = -EPROTO; | |
1091 | goto out; | |
1092 | } | |
d7e09d03 PT |
1093 | |
1094 | *osfs = *msfs; | |
d7e09d03 PT |
1095 | out: |
1096 | ptlrpc_req_finished(req); | |
1097 | output: | |
1098 | class_import_put(imp); | |
1099 | return rc; | |
1100 | } | |
1101 | ||
1102 | static int mdc_ioc_fid2path(struct obd_export *exp, struct getinfo_fid2path *gf) | |
1103 | { | |
1104 | __u32 keylen, vallen; | |
1105 | void *key; | |
1106 | int rc; | |
1107 | ||
1108 | if (gf->gf_pathlen > PATH_MAX) | |
0a3bdb00 | 1109 | return -ENAMETOOLONG; |
d7e09d03 | 1110 | if (gf->gf_pathlen < 2) |
0a3bdb00 | 1111 | return -EOVERFLOW; |
d7e09d03 PT |
1112 | |
1113 | /* Key is KEY_FID2PATH + getinfo_fid2path description */ | |
1114 | keylen = cfs_size_round(sizeof(KEY_FID2PATH)) + sizeof(*gf); | |
7b81779d | 1115 | key = kzalloc(keylen, GFP_NOFS); |
bb144d09 | 1116 | if (!key) |
0a3bdb00 | 1117 | return -ENOMEM; |
d7e09d03 PT |
1118 | memcpy(key, KEY_FID2PATH, sizeof(KEY_FID2PATH)); |
1119 | memcpy(key + cfs_size_round(sizeof(KEY_FID2PATH)), gf, sizeof(*gf)); | |
1120 | ||
b0f5aad5 | 1121 | CDEBUG(D_IOCTL, "path get "DFID" from %llu #%d\n", |
d7e09d03 PT |
1122 | PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno); |
1123 | ||
d5fdc207 JL |
1124 | if (!fid_is_sane(&gf->gf_fid)) { |
1125 | rc = -EINVAL; | |
1126 | goto out; | |
1127 | } | |
d7e09d03 PT |
1128 | |
1129 | /* Val is struct getinfo_fid2path result plus path */ | |
1130 | vallen = sizeof(*gf) + gf->gf_pathlen; | |
1131 | ||
1132 | rc = obd_get_info(NULL, exp, keylen, key, &vallen, gf, NULL); | |
1133 | if (rc != 0 && rc != -EREMOTE) | |
d5fdc207 | 1134 | goto out; |
d7e09d03 | 1135 | |
d5fdc207 JL |
1136 | if (vallen <= sizeof(*gf)) { |
1137 | rc = -EPROTO; | |
1138 | goto out; | |
1139 | } else if (vallen > sizeof(*gf) + gf->gf_pathlen) { | |
1140 | rc = -EOVERFLOW; | |
1141 | goto out; | |
1142 | } | |
d7e09d03 | 1143 | |
b0f5aad5 | 1144 | CDEBUG(D_IOCTL, "path get "DFID" from %llu #%d\n%s\n", |
d7e09d03 PT |
1145 | PFID(&gf->gf_fid), gf->gf_recno, gf->gf_linkno, gf->gf_path); |
1146 | ||
1147 | out: | |
7b81779d | 1148 | kfree(key); |
d7e09d03 PT |
1149 | return rc; |
1150 | } | |
1151 | ||
1152 | static int mdc_ioc_hsm_progress(struct obd_export *exp, | |
1153 | struct hsm_progress_kernel *hpk) | |
1154 | { | |
1155 | struct obd_import *imp = class_exp2cliimp(exp); | |
1156 | struct hsm_progress_kernel *req_hpk; | |
1157 | struct ptlrpc_request *req; | |
1158 | int rc; | |
d7e09d03 PT |
1159 | |
1160 | req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_PROGRESS, | |
1161 | LUSTRE_MDS_VERSION, MDS_HSM_PROGRESS); | |
d5fdc207 JL |
1162 | if (req == NULL) { |
1163 | rc = -ENOMEM; | |
1164 | goto out; | |
1165 | } | |
d7e09d03 | 1166 | |
ef2e0f55 | 1167 | mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); |
d7e09d03 PT |
1168 | |
1169 | /* Copy hsm_progress struct */ | |
1170 | req_hpk = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_PROGRESS); | |
d5fdc207 JL |
1171 | if (req_hpk == NULL) { |
1172 | rc = -EPROTO; | |
1173 | goto out; | |
1174 | } | |
d7e09d03 PT |
1175 | |
1176 | *req_hpk = *hpk; | |
2d58de78 | 1177 | req_hpk->hpk_errval = lustre_errno_hton(hpk->hpk_errval); |
d7e09d03 PT |
1178 | |
1179 | ptlrpc_request_set_replen(req); | |
1180 | ||
1181 | rc = mdc_queue_wait(req); | |
d5fdc207 | 1182 | goto out; |
d7e09d03 PT |
1183 | out: |
1184 | ptlrpc_req_finished(req); | |
1185 | return rc; | |
1186 | } | |
1187 | ||
1188 | static int mdc_ioc_hsm_ct_register(struct obd_import *imp, __u32 archives) | |
1189 | { | |
1190 | __u32 *archive_mask; | |
1191 | struct ptlrpc_request *req; | |
1192 | int rc; | |
d7e09d03 PT |
1193 | |
1194 | req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_REGISTER, | |
1195 | LUSTRE_MDS_VERSION, | |
1196 | MDS_HSM_CT_REGISTER); | |
d5fdc207 JL |
1197 | if (req == NULL) { |
1198 | rc = -ENOMEM; | |
1199 | goto out; | |
1200 | } | |
d7e09d03 | 1201 | |
ef2e0f55 | 1202 | mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); |
d7e09d03 PT |
1203 | |
1204 | /* Copy hsm_progress struct */ | |
1205 | archive_mask = req_capsule_client_get(&req->rq_pill, | |
1206 | &RMF_MDS_HSM_ARCHIVE); | |
d5fdc207 JL |
1207 | if (archive_mask == NULL) { |
1208 | rc = -EPROTO; | |
1209 | goto out; | |
1210 | } | |
d7e09d03 PT |
1211 | |
1212 | *archive_mask = archives; | |
1213 | ||
1214 | ptlrpc_request_set_replen(req); | |
1215 | ||
1216 | rc = mdc_queue_wait(req); | |
d5fdc207 | 1217 | goto out; |
d7e09d03 PT |
1218 | out: |
1219 | ptlrpc_req_finished(req); | |
1220 | return rc; | |
1221 | } | |
1222 | ||
1223 | static int mdc_ioc_hsm_current_action(struct obd_export *exp, | |
1224 | struct md_op_data *op_data) | |
1225 | { | |
1226 | struct hsm_current_action *hca = op_data->op_data; | |
1227 | struct hsm_current_action *req_hca; | |
1228 | struct ptlrpc_request *req; | |
1229 | int rc; | |
d7e09d03 PT |
1230 | |
1231 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
1232 | &RQF_MDS_HSM_ACTION); | |
1233 | if (req == NULL) | |
0a3bdb00 | 1234 | return -ENOMEM; |
d7e09d03 | 1235 | |
d7e09d03 PT |
1236 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_ACTION); |
1237 | if (rc) { | |
1238 | ptlrpc_request_free(req); | |
0a3bdb00 | 1239 | return rc; |
d7e09d03 PT |
1240 | } |
1241 | ||
ef2e0f55 OD |
1242 | mdc_pack_body(req, &op_data->op_fid1, OBD_MD_FLRMTPERM, 0, |
1243 | op_data->op_suppgids[0], 0); | |
d7e09d03 PT |
1244 | |
1245 | ptlrpc_request_set_replen(req); | |
1246 | ||
1247 | rc = mdc_queue_wait(req); | |
1248 | if (rc) | |
d5fdc207 | 1249 | goto out; |
d7e09d03 PT |
1250 | |
1251 | req_hca = req_capsule_server_get(&req->rq_pill, | |
1252 | &RMF_MDS_HSM_CURRENT_ACTION); | |
d5fdc207 JL |
1253 | if (req_hca == NULL) { |
1254 | rc = -EPROTO; | |
1255 | goto out; | |
1256 | } | |
d7e09d03 PT |
1257 | |
1258 | *hca = *req_hca; | |
1259 | ||
d7e09d03 PT |
1260 | out: |
1261 | ptlrpc_req_finished(req); | |
1262 | return rc; | |
1263 | } | |
1264 | ||
1265 | static int mdc_ioc_hsm_ct_unregister(struct obd_import *imp) | |
1266 | { | |
1267 | struct ptlrpc_request *req; | |
1268 | int rc; | |
d7e09d03 PT |
1269 | |
1270 | req = ptlrpc_request_alloc_pack(imp, &RQF_MDS_HSM_CT_UNREGISTER, | |
1271 | LUSTRE_MDS_VERSION, | |
1272 | MDS_HSM_CT_UNREGISTER); | |
d5fdc207 JL |
1273 | if (req == NULL) { |
1274 | rc = -ENOMEM; | |
1275 | goto out; | |
1276 | } | |
d7e09d03 | 1277 | |
ef2e0f55 | 1278 | mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); |
d7e09d03 PT |
1279 | |
1280 | ptlrpc_request_set_replen(req); | |
1281 | ||
1282 | rc = mdc_queue_wait(req); | |
d5fdc207 | 1283 | goto out; |
d7e09d03 PT |
1284 | out: |
1285 | ptlrpc_req_finished(req); | |
1286 | return rc; | |
1287 | } | |
1288 | ||
1289 | static int mdc_ioc_hsm_state_get(struct obd_export *exp, | |
1290 | struct md_op_data *op_data) | |
1291 | { | |
1292 | struct hsm_user_state *hus = op_data->op_data; | |
1293 | struct hsm_user_state *req_hus; | |
1294 | struct ptlrpc_request *req; | |
1295 | int rc; | |
d7e09d03 PT |
1296 | |
1297 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
1298 | &RQF_MDS_HSM_STATE_GET); | |
1299 | if (req == NULL) | |
0a3bdb00 | 1300 | return -ENOMEM; |
d7e09d03 | 1301 | |
d7e09d03 PT |
1302 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_GET); |
1303 | if (rc != 0) { | |
1304 | ptlrpc_request_free(req); | |
0a3bdb00 | 1305 | return rc; |
d7e09d03 PT |
1306 | } |
1307 | ||
ef2e0f55 OD |
1308 | mdc_pack_body(req, &op_data->op_fid1, OBD_MD_FLRMTPERM, 0, |
1309 | op_data->op_suppgids[0], 0); | |
d7e09d03 PT |
1310 | |
1311 | ptlrpc_request_set_replen(req); | |
1312 | ||
1313 | rc = mdc_queue_wait(req); | |
1314 | if (rc) | |
d5fdc207 | 1315 | goto out; |
d7e09d03 PT |
1316 | |
1317 | req_hus = req_capsule_server_get(&req->rq_pill, &RMF_HSM_USER_STATE); | |
d5fdc207 JL |
1318 | if (req_hus == NULL) { |
1319 | rc = -EPROTO; | |
1320 | goto out; | |
1321 | } | |
d7e09d03 PT |
1322 | |
1323 | *hus = *req_hus; | |
1324 | ||
d7e09d03 PT |
1325 | out: |
1326 | ptlrpc_req_finished(req); | |
1327 | return rc; | |
1328 | } | |
1329 | ||
1330 | static int mdc_ioc_hsm_state_set(struct obd_export *exp, | |
1331 | struct md_op_data *op_data) | |
1332 | { | |
1333 | struct hsm_state_set *hss = op_data->op_data; | |
1334 | struct hsm_state_set *req_hss; | |
1335 | struct ptlrpc_request *req; | |
1336 | int rc; | |
d7e09d03 PT |
1337 | |
1338 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
1339 | &RQF_MDS_HSM_STATE_SET); | |
1340 | if (req == NULL) | |
0a3bdb00 | 1341 | return -ENOMEM; |
d7e09d03 | 1342 | |
d7e09d03 PT |
1343 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_STATE_SET); |
1344 | if (rc) { | |
1345 | ptlrpc_request_free(req); | |
0a3bdb00 | 1346 | return rc; |
d7e09d03 PT |
1347 | } |
1348 | ||
ef2e0f55 OD |
1349 | mdc_pack_body(req, &op_data->op_fid1, OBD_MD_FLRMTPERM, 0, |
1350 | op_data->op_suppgids[0], 0); | |
d7e09d03 PT |
1351 | |
1352 | /* Copy states */ | |
1353 | req_hss = req_capsule_client_get(&req->rq_pill, &RMF_HSM_STATE_SET); | |
d5fdc207 JL |
1354 | if (req_hss == NULL) { |
1355 | rc = -EPROTO; | |
1356 | goto out; | |
1357 | } | |
d7e09d03 PT |
1358 | *req_hss = *hss; |
1359 | ||
1360 | ptlrpc_request_set_replen(req); | |
1361 | ||
1362 | rc = mdc_queue_wait(req); | |
d5fdc207 | 1363 | goto out; |
d7e09d03 | 1364 | |
d7e09d03 PT |
1365 | out: |
1366 | ptlrpc_req_finished(req); | |
1367 | return rc; | |
1368 | } | |
1369 | ||
1370 | static int mdc_ioc_hsm_request(struct obd_export *exp, | |
1371 | struct hsm_user_request *hur) | |
1372 | { | |
1373 | struct obd_import *imp = class_exp2cliimp(exp); | |
1374 | struct ptlrpc_request *req; | |
1375 | struct hsm_request *req_hr; | |
1376 | struct hsm_user_item *req_hui; | |
1377 | char *req_opaque; | |
1378 | int rc; | |
d7e09d03 PT |
1379 | |
1380 | req = ptlrpc_request_alloc(imp, &RQF_MDS_HSM_REQUEST); | |
d5fdc207 JL |
1381 | if (req == NULL) { |
1382 | rc = -ENOMEM; | |
1383 | goto out; | |
1384 | } | |
d7e09d03 PT |
1385 | |
1386 | req_capsule_set_size(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM, RCL_CLIENT, | |
1387 | hur->hur_request.hr_itemcount | |
1388 | * sizeof(struct hsm_user_item)); | |
1389 | req_capsule_set_size(&req->rq_pill, &RMF_GENERIC_DATA, RCL_CLIENT, | |
1390 | hur->hur_request.hr_data_len); | |
1391 | ||
1392 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_REQUEST); | |
1393 | if (rc) { | |
1394 | ptlrpc_request_free(req); | |
0a3bdb00 | 1395 | return rc; |
d7e09d03 PT |
1396 | } |
1397 | ||
ef2e0f55 | 1398 | mdc_pack_body(req, NULL, OBD_MD_FLRMTPERM, 0, 0, 0); |
d7e09d03 PT |
1399 | |
1400 | /* Copy hsm_request struct */ | |
1401 | req_hr = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_REQUEST); | |
d5fdc207 JL |
1402 | if (req_hr == NULL) { |
1403 | rc = -EPROTO; | |
1404 | goto out; | |
1405 | } | |
d7e09d03 PT |
1406 | *req_hr = hur->hur_request; |
1407 | ||
1408 | /* Copy hsm_user_item structs */ | |
1409 | req_hui = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM); | |
d5fdc207 JL |
1410 | if (req_hui == NULL) { |
1411 | rc = -EPROTO; | |
1412 | goto out; | |
1413 | } | |
d7e09d03 PT |
1414 | memcpy(req_hui, hur->hur_user_item, |
1415 | hur->hur_request.hr_itemcount * sizeof(struct hsm_user_item)); | |
1416 | ||
1417 | /* Copy opaque field */ | |
1418 | req_opaque = req_capsule_client_get(&req->rq_pill, &RMF_GENERIC_DATA); | |
d5fdc207 JL |
1419 | if (req_opaque == NULL) { |
1420 | rc = -EPROTO; | |
1421 | goto out; | |
1422 | } | |
d7e09d03 PT |
1423 | memcpy(req_opaque, hur_data(hur), hur->hur_request.hr_data_len); |
1424 | ||
1425 | ptlrpc_request_set_replen(req); | |
1426 | ||
1427 | rc = mdc_queue_wait(req); | |
d5fdc207 | 1428 | goto out; |
d7e09d03 PT |
1429 | |
1430 | out: | |
1431 | ptlrpc_req_finished(req); | |
1432 | return rc; | |
1433 | } | |
1434 | ||
1435 | static struct kuc_hdr *changelog_kuc_hdr(char *buf, int len, int flags) | |
1436 | { | |
1437 | struct kuc_hdr *lh = (struct kuc_hdr *)buf; | |
1438 | ||
18e042f0 | 1439 | LASSERT(len <= KUC_CHANGELOG_MSG_MAXSIZE); |
d7e09d03 PT |
1440 | |
1441 | lh->kuc_magic = KUC_MAGIC; | |
1442 | lh->kuc_transport = KUC_TRANSPORT_CHANGELOG; | |
1443 | lh->kuc_flags = flags; | |
1444 | lh->kuc_msgtype = CL_RECORD; | |
1445 | lh->kuc_msglen = len; | |
1446 | return lh; | |
1447 | } | |
1448 | ||
1449 | #define D_CHANGELOG 0 | |
1450 | ||
1451 | struct changelog_show { | |
1452 | __u64 cs_startrec; | |
1453 | __u32 cs_flags; | |
1454 | struct file *cs_fp; | |
1455 | char *cs_buf; | |
1456 | struct obd_device *cs_obd; | |
1457 | }; | |
1458 | ||
e377988e | 1459 | static int changelog_kkuc_cb(const struct lu_env *env, struct llog_handle *llh, |
d7e09d03 PT |
1460 | struct llog_rec_hdr *hdr, void *data) |
1461 | { | |
1462 | struct changelog_show *cs = data; | |
1463 | struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr; | |
1464 | struct kuc_hdr *lh; | |
1465 | int len, rc; | |
d7e09d03 | 1466 | |
e377988e AD |
1467 | if (rec->cr_hdr.lrh_type != CHANGELOG_REC) { |
1468 | rc = -EINVAL; | |
1469 | CERROR("%s: not a changelog rec %x/%d: rc = %d\n", | |
1470 | cs->cs_obd->obd_name, rec->cr_hdr.lrh_type, | |
1471 | rec->cr.cr_type, rc); | |
0a3bdb00 | 1472 | return rc; |
d7e09d03 PT |
1473 | } |
1474 | ||
1475 | if (rec->cr.cr_index < cs->cs_startrec) { | |
1476 | /* Skip entries earlier than what we are interested in */ | |
b0f5aad5 | 1477 | CDEBUG(D_CHANGELOG, "rec=%llu start=%llu\n", |
d7e09d03 | 1478 | rec->cr.cr_index, cs->cs_startrec); |
0a3bdb00 | 1479 | return 0; |
d7e09d03 PT |
1480 | } |
1481 | ||
b0f5aad5 | 1482 | CDEBUG(D_CHANGELOG, "%llu %02d%-5s %llu 0x%x t="DFID" p="DFID |
d7e09d03 PT |
1483 | " %.*s\n", rec->cr.cr_index, rec->cr.cr_type, |
1484 | changelog_type2str(rec->cr.cr_type), rec->cr.cr_time, | |
1485 | rec->cr.cr_flags & CLF_FLAGMASK, | |
1486 | PFID(&rec->cr.cr_tfid), PFID(&rec->cr.cr_pfid), | |
1487 | rec->cr.cr_namelen, changelog_rec_name(&rec->cr)); | |
1488 | ||
1489 | len = sizeof(*lh) + changelog_rec_size(&rec->cr) + rec->cr.cr_namelen; | |
1490 | ||
1491 | /* Set up the message */ | |
1492 | lh = changelog_kuc_hdr(cs->cs_buf, len, cs->cs_flags); | |
1493 | memcpy(lh + 1, &rec->cr, len - sizeof(*lh)); | |
1494 | ||
1495 | rc = libcfs_kkuc_msg_put(cs->cs_fp, lh); | |
301af906 | 1496 | CDEBUG(D_CHANGELOG, "kucmsg fp %p len %d rc %d\n", cs->cs_fp, len, rc); |
d7e09d03 | 1497 | |
0a3bdb00 | 1498 | return rc; |
d7e09d03 PT |
1499 | } |
1500 | ||
1501 | static int mdc_changelog_send_thread(void *csdata) | |
1502 | { | |
1503 | struct changelog_show *cs = csdata; | |
1504 | struct llog_ctxt *ctxt = NULL; | |
1505 | struct llog_handle *llh = NULL; | |
1506 | struct kuc_hdr *kuch; | |
1507 | int rc; | |
1508 | ||
b0f5aad5 | 1509 | CDEBUG(D_CHANGELOG, "changelog to fp=%p start %llu\n", |
d7e09d03 PT |
1510 | cs->cs_fp, cs->cs_startrec); |
1511 | ||
7b81779d | 1512 | cs->cs_buf = kzalloc(KUC_CHANGELOG_MSG_MAXSIZE, GFP_NOFS); |
bb144d09 | 1513 | if (!cs->cs_buf) { |
d5fdc207 JL |
1514 | rc = -ENOMEM; |
1515 | goto out; | |
1516 | } | |
d7e09d03 PT |
1517 | |
1518 | /* Set up the remote catalog handle */ | |
1519 | ctxt = llog_get_context(cs->cs_obd, LLOG_CHANGELOG_REPL_CTXT); | |
d5fdc207 JL |
1520 | if (ctxt == NULL) { |
1521 | rc = -ENOENT; | |
1522 | goto out; | |
1523 | } | |
d7e09d03 PT |
1524 | rc = llog_open(NULL, ctxt, &llh, NULL, CHANGELOG_CATALOG, |
1525 | LLOG_OPEN_EXISTS); | |
1526 | if (rc) { | |
1527 | CERROR("%s: fail to open changelog catalog: rc = %d\n", | |
1528 | cs->cs_obd->obd_name, rc); | |
d5fdc207 | 1529 | goto out; |
d7e09d03 PT |
1530 | } |
1531 | rc = llog_init_handle(NULL, llh, LLOG_F_IS_CAT, NULL); | |
1532 | if (rc) { | |
1533 | CERROR("llog_init_handle failed %d\n", rc); | |
d5fdc207 | 1534 | goto out; |
d7e09d03 PT |
1535 | } |
1536 | ||
e377988e | 1537 | rc = llog_cat_process(NULL, llh, changelog_kkuc_cb, cs, 0, 0); |
d7e09d03 PT |
1538 | |
1539 | /* Send EOF no matter what our result */ | |
4a87df3e CP |
1540 | kuch = changelog_kuc_hdr(cs->cs_buf, sizeof(*kuch), cs->cs_flags); |
1541 | if (kuch) { | |
d7e09d03 PT |
1542 | kuch->kuc_msgtype = CL_EOF; |
1543 | libcfs_kkuc_msg_put(cs->cs_fp, kuch); | |
1544 | } | |
1545 | ||
1546 | out: | |
1547 | fput(cs->cs_fp); | |
1548 | if (llh) | |
1549 | llog_cat_close(NULL, llh); | |
1550 | if (ctxt) | |
1551 | llog_ctxt_put(ctxt); | |
6fa7cbab | 1552 | kfree(cs->cs_buf); |
7b81779d | 1553 | kfree(cs); |
d7e09d03 PT |
1554 | return rc; |
1555 | } | |
1556 | ||
1557 | static int mdc_ioc_changelog_send(struct obd_device *obd, | |
1558 | struct ioc_changelog *icc) | |
1559 | { | |
1560 | struct changelog_show *cs; | |
1561 | int rc; | |
1562 | ||
1563 | /* Freed in mdc_changelog_send_thread */ | |
7b81779d | 1564 | cs = kzalloc(sizeof(*cs), GFP_NOFS); |
d7e09d03 PT |
1565 | if (!cs) |
1566 | return -ENOMEM; | |
1567 | ||
1568 | cs->cs_obd = obd; | |
1569 | cs->cs_startrec = icc->icc_recno; | |
1570 | /* matching fput in mdc_changelog_send_thread */ | |
1571 | cs->cs_fp = fget(icc->icc_id); | |
1572 | cs->cs_flags = icc->icc_flags; | |
1573 | ||
1574 | /* | |
1575 | * New thread because we should return to user app before | |
1576 | * writing into our pipe | |
1577 | */ | |
1578 | rc = PTR_ERR(kthread_run(mdc_changelog_send_thread, cs, | |
1579 | "mdc_clg_send_thread")); | |
1580 | if (!IS_ERR_VALUE(rc)) { | |
1581 | CDEBUG(D_CHANGELOG, "start changelog thread\n"); | |
1582 | return 0; | |
1583 | } | |
1584 | ||
1585 | CERROR("Failed to start changelog thread: %d\n", rc); | |
7b81779d | 1586 | kfree(cs); |
d7e09d03 PT |
1587 | return rc; |
1588 | } | |
1589 | ||
1590 | static int mdc_ioc_hsm_ct_start(struct obd_export *exp, | |
1591 | struct lustre_kernelcomm *lk); | |
1592 | ||
1593 | static int mdc_quotacheck(struct obd_device *unused, struct obd_export *exp, | |
1594 | struct obd_quotactl *oqctl) | |
1595 | { | |
1596 | struct client_obd *cli = &exp->exp_obd->u.cli; | |
1597 | struct ptlrpc_request *req; | |
1598 | struct obd_quotactl *body; | |
1599 | int rc; | |
d7e09d03 PT |
1600 | |
1601 | req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), | |
1602 | &RQF_MDS_QUOTACHECK, LUSTRE_MDS_VERSION, | |
1603 | MDS_QUOTACHECK); | |
1604 | if (req == NULL) | |
0a3bdb00 | 1605 | return -ENOMEM; |
d7e09d03 PT |
1606 | |
1607 | body = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL); | |
1608 | *body = *oqctl; | |
1609 | ||
1610 | ptlrpc_request_set_replen(req); | |
1611 | ||
1612 | /* the next poll will find -ENODATA, that means quotacheck is | |
1613 | * going on */ | |
1614 | cli->cl_qchk_stat = -ENODATA; | |
1615 | rc = ptlrpc_queue_wait(req); | |
1616 | if (rc) | |
1617 | cli->cl_qchk_stat = rc; | |
1618 | ptlrpc_req_finished(req); | |
0a3bdb00 | 1619 | return rc; |
d7e09d03 PT |
1620 | } |
1621 | ||
1622 | static int mdc_quota_poll_check(struct obd_export *exp, | |
1623 | struct if_quotacheck *qchk) | |
1624 | { | |
1625 | struct client_obd *cli = &exp->exp_obd->u.cli; | |
1626 | int rc; | |
d7e09d03 PT |
1627 | |
1628 | qchk->obd_uuid = cli->cl_target_uuid; | |
1629 | memcpy(qchk->obd_type, LUSTRE_MDS_NAME, strlen(LUSTRE_MDS_NAME)); | |
1630 | ||
1631 | rc = cli->cl_qchk_stat; | |
1632 | /* the client is not the previous one */ | |
1633 | if (rc == CL_NOT_QUOTACHECKED) | |
1634 | rc = -EINTR; | |
0a3bdb00 | 1635 | return rc; |
d7e09d03 PT |
1636 | } |
1637 | ||
1638 | static int mdc_quotactl(struct obd_device *unused, struct obd_export *exp, | |
1639 | struct obd_quotactl *oqctl) | |
1640 | { | |
1641 | struct ptlrpc_request *req; | |
1642 | struct obd_quotactl *oqc; | |
1643 | int rc; | |
d7e09d03 PT |
1644 | |
1645 | req = ptlrpc_request_alloc_pack(class_exp2cliimp(exp), | |
1646 | &RQF_MDS_QUOTACTL, LUSTRE_MDS_VERSION, | |
1647 | MDS_QUOTACTL); | |
1648 | if (req == NULL) | |
0a3bdb00 | 1649 | return -ENOMEM; |
d7e09d03 PT |
1650 | |
1651 | oqc = req_capsule_client_get(&req->rq_pill, &RMF_OBD_QUOTACTL); | |
1652 | *oqc = *oqctl; | |
1653 | ||
1654 | ptlrpc_request_set_replen(req); | |
1655 | ptlrpc_at_set_req_timeout(req); | |
1656 | req->rq_no_resend = 1; | |
1657 | ||
1658 | rc = ptlrpc_queue_wait(req); | |
1659 | if (rc) | |
1660 | CERROR("ptlrpc_queue_wait failed, rc: %d\n", rc); | |
1661 | ||
4a87df3e CP |
1662 | if (req->rq_repmsg) { |
1663 | oqc = req_capsule_server_get(&req->rq_pill, &RMF_OBD_QUOTACTL); | |
1664 | if (oqc) { | |
1665 | *oqctl = *oqc; | |
1666 | } else if (!rc) { | |
ffdac6ce | 1667 | CERROR("Can't unpack obd_quotactl\n"); |
4a87df3e CP |
1668 | rc = -EPROTO; |
1669 | } | |
d7e09d03 | 1670 | } else if (!rc) { |
4a87df3e | 1671 | CERROR("Can't unpack obd_quotactl\n"); |
d7e09d03 PT |
1672 | rc = -EPROTO; |
1673 | } | |
1674 | ptlrpc_req_finished(req); | |
1675 | ||
0a3bdb00 | 1676 | return rc; |
d7e09d03 PT |
1677 | } |
1678 | ||
1679 | static int mdc_ioc_swap_layouts(struct obd_export *exp, | |
1680 | struct md_op_data *op_data) | |
1681 | { | |
1682 | LIST_HEAD(cancels); | |
1683 | struct ptlrpc_request *req; | |
1684 | int rc, count; | |
1685 | struct mdc_swap_layouts *msl, *payload; | |
d7e09d03 PT |
1686 | |
1687 | msl = op_data->op_data; | |
1688 | ||
1689 | /* When the MDT will get the MDS_SWAP_LAYOUTS RPC the | |
1690 | * first thing it will do is to cancel the 2 layout | |
1691 | * locks hold by this client. | |
1692 | * So the client must cancel its layout locks on the 2 fids | |
1693 | * with the request RPC to avoid extra RPC round trips | |
1694 | */ | |
1695 | count = mdc_resource_get_unused(exp, &op_data->op_fid1, &cancels, | |
1696 | LCK_CR, MDS_INODELOCK_LAYOUT); | |
1697 | count += mdc_resource_get_unused(exp, &op_data->op_fid2, &cancels, | |
1698 | LCK_CR, MDS_INODELOCK_LAYOUT); | |
1699 | ||
1700 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), | |
1701 | &RQF_MDS_SWAP_LAYOUTS); | |
1702 | if (req == NULL) { | |
1703 | ldlm_lock_list_put(&cancels, l_bl_ast, count); | |
0a3bdb00 | 1704 | return -ENOMEM; |
d7e09d03 PT |
1705 | } |
1706 | ||
d7e09d03 PT |
1707 | rc = mdc_prep_elc_req(exp, req, MDS_SWAP_LAYOUTS, &cancels, count); |
1708 | if (rc) { | |
1709 | ptlrpc_request_free(req); | |
0a3bdb00 | 1710 | return rc; |
d7e09d03 PT |
1711 | } |
1712 | ||
1713 | mdc_swap_layouts_pack(req, op_data); | |
1714 | ||
1715 | payload = req_capsule_client_get(&req->rq_pill, &RMF_SWAP_LAYOUTS); | |
1716 | LASSERT(payload); | |
1717 | ||
1718 | *payload = *msl; | |
1719 | ||
1720 | ptlrpc_request_set_replen(req); | |
1721 | ||
1722 | rc = ptlrpc_queue_wait(req); | |
d7e09d03 | 1723 | |
d7e09d03 PT |
1724 | ptlrpc_req_finished(req); |
1725 | return rc; | |
1726 | } | |
1727 | ||
1728 | static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len, | |
1729 | void *karg, void *uarg) | |
1730 | { | |
1731 | struct obd_device *obd = exp->exp_obd; | |
1732 | struct obd_ioctl_data *data = karg; | |
1733 | struct obd_import *imp = obd->u.cli.cl_import; | |
d7e09d03 | 1734 | int rc; |
d7e09d03 PT |
1735 | |
1736 | if (!try_module_get(THIS_MODULE)) { | |
1737 | CERROR("Can't get module. Is it alive?"); | |
1738 | return -EINVAL; | |
1739 | } | |
1740 | switch (cmd) { | |
1741 | case OBD_IOC_CHANGELOG_SEND: | |
1742 | rc = mdc_ioc_changelog_send(obd, karg); | |
d5fdc207 | 1743 | goto out; |
d7e09d03 PT |
1744 | case OBD_IOC_CHANGELOG_CLEAR: { |
1745 | struct ioc_changelog *icc = karg; | |
1a4cd3e9 SM |
1746 | struct changelog_setinfo cs = { |
1747 | .cs_recno = icc->icc_recno, | |
1748 | .cs_id = icc->icc_id | |
1749 | }; | |
1750 | ||
d7e09d03 PT |
1751 | rc = obd_set_info_async(NULL, exp, strlen(KEY_CHANGELOG_CLEAR), |
1752 | KEY_CHANGELOG_CLEAR, sizeof(cs), &cs, | |
1753 | NULL); | |
d5fdc207 | 1754 | goto out; |
d7e09d03 PT |
1755 | } |
1756 | case OBD_IOC_FID2PATH: | |
1757 | rc = mdc_ioc_fid2path(exp, karg); | |
d5fdc207 | 1758 | goto out; |
d7e09d03 PT |
1759 | case LL_IOC_HSM_CT_START: |
1760 | rc = mdc_ioc_hsm_ct_start(exp, karg); | |
78eb9092 TL |
1761 | /* ignore if it was already registered on this MDS. */ |
1762 | if (rc == -EEXIST) | |
1763 | rc = 0; | |
d5fdc207 | 1764 | goto out; |
d7e09d03 PT |
1765 | case LL_IOC_HSM_PROGRESS: |
1766 | rc = mdc_ioc_hsm_progress(exp, karg); | |
d5fdc207 | 1767 | goto out; |
d7e09d03 PT |
1768 | case LL_IOC_HSM_STATE_GET: |
1769 | rc = mdc_ioc_hsm_state_get(exp, karg); | |
d5fdc207 | 1770 | goto out; |
d7e09d03 PT |
1771 | case LL_IOC_HSM_STATE_SET: |
1772 | rc = mdc_ioc_hsm_state_set(exp, karg); | |
d5fdc207 | 1773 | goto out; |
d7e09d03 PT |
1774 | case LL_IOC_HSM_ACTION: |
1775 | rc = mdc_ioc_hsm_current_action(exp, karg); | |
d5fdc207 | 1776 | goto out; |
d7e09d03 PT |
1777 | case LL_IOC_HSM_REQUEST: |
1778 | rc = mdc_ioc_hsm_request(exp, karg); | |
d5fdc207 | 1779 | goto out; |
d7e09d03 PT |
1780 | case OBD_IOC_CLIENT_RECOVER: |
1781 | rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1, 0); | |
1782 | if (rc < 0) | |
d5fdc207 JL |
1783 | goto out; |
1784 | rc = 0; | |
1785 | goto out; | |
d7e09d03 PT |
1786 | case IOC_OSC_SET_ACTIVE: |
1787 | rc = ptlrpc_set_import_active(imp, data->ioc_offset); | |
d5fdc207 | 1788 | goto out; |
d7e09d03 PT |
1789 | case OBD_IOC_POLL_QUOTACHECK: |
1790 | rc = mdc_quota_poll_check(exp, (struct if_quotacheck *)karg); | |
d5fdc207 | 1791 | goto out; |
d7e09d03 PT |
1792 | case OBD_IOC_PING_TARGET: |
1793 | rc = ptlrpc_obd_ping(obd); | |
d5fdc207 | 1794 | goto out; |
d7e09d03 PT |
1795 | /* |
1796 | * Normally IOC_OBD_STATFS, OBD_IOC_QUOTACTL iocontrol are handled by | |
1797 | * LMV instead of MDC. But when the cluster is upgraded from 1.8, | |
1798 | * there'd be no LMV layer thus we might be called here. Eventually | |
1799 | * this code should be removed. | |
1800 | * bz20731, LU-592. | |
1801 | */ | |
1802 | case IOC_OBD_STATFS: { | |
1803 | struct obd_statfs stat_buf = {0}; | |
1804 | ||
d5fdc207 JL |
1805 | if (*((__u32 *) data->ioc_inlbuf2) != 0) { |
1806 | rc = -ENODEV; | |
1807 | goto out; | |
1808 | } | |
d7e09d03 PT |
1809 | |
1810 | /* copy UUID */ | |
1811 | if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(obd), | |
ef4356bf DC |
1812 | min_t(size_t, data->ioc_plen2, |
1813 | sizeof(struct obd_uuid)))) { | |
d5fdc207 JL |
1814 | rc = -EFAULT; |
1815 | goto out; | |
1816 | } | |
d7e09d03 PT |
1817 | |
1818 | rc = mdc_statfs(NULL, obd->obd_self_export, &stat_buf, | |
1819 | cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), | |
1820 | 0); | |
1821 | if (rc != 0) | |
d5fdc207 | 1822 | goto out; |
d7e09d03 PT |
1823 | |
1824 | if (copy_to_user(data->ioc_pbuf1, &stat_buf, | |
ef4356bf DC |
1825 | min_t(size_t, data->ioc_plen1, |
1826 | sizeof(stat_buf)))) { | |
d5fdc207 JL |
1827 | rc = -EFAULT; |
1828 | goto out; | |
1829 | } | |
d7e09d03 | 1830 | |
d5fdc207 JL |
1831 | rc = 0; |
1832 | goto out; | |
d7e09d03 PT |
1833 | } |
1834 | case OBD_IOC_QUOTACTL: { | |
1835 | struct if_quotactl *qctl = karg; | |
1836 | struct obd_quotactl *oqctl; | |
1837 | ||
7b81779d | 1838 | oqctl = kzalloc(sizeof(*oqctl), GFP_NOFS); |
bb144d09 | 1839 | if (!oqctl) { |
d5fdc207 JL |
1840 | rc = -ENOMEM; |
1841 | goto out; | |
1842 | } | |
d7e09d03 PT |
1843 | |
1844 | QCTL_COPY(oqctl, qctl); | |
1845 | rc = obd_quotactl(exp, oqctl); | |
1846 | if (rc == 0) { | |
1847 | QCTL_COPY(qctl, oqctl); | |
1848 | qctl->qc_valid = QC_MDTIDX; | |
1849 | qctl->obd_uuid = obd->u.cli.cl_target_uuid; | |
1850 | } | |
c1f3d689 | 1851 | |
7b81779d | 1852 | kfree(oqctl); |
d5fdc207 | 1853 | goto out; |
d7e09d03 | 1854 | } |
c1f3d689 JH |
1855 | case LL_IOC_GET_CONNECT_FLAGS: |
1856 | if (copy_to_user(uarg, exp_connect_flags_ptr(exp), | |
d5fdc207 JL |
1857 | sizeof(*exp_connect_flags_ptr(exp)))) { |
1858 | rc = -EFAULT; | |
1859 | goto out; | |
1860 | } | |
c1f3d689 | 1861 | |
d5fdc207 JL |
1862 | rc = 0; |
1863 | goto out; | |
c1f3d689 | 1864 | case LL_IOC_LOV_SWAP_LAYOUTS: |
d7e09d03 | 1865 | rc = mdc_ioc_swap_layouts(exp, karg); |
d5fdc207 | 1866 | goto out; |
d7e09d03 | 1867 | default: |
c1f3d689 | 1868 | CERROR("unrecognised ioctl: cmd = %#x\n", cmd); |
d5fdc207 JL |
1869 | rc = -ENOTTY; |
1870 | goto out; | |
d7e09d03 PT |
1871 | } |
1872 | out: | |
1873 | module_put(THIS_MODULE); | |
1874 | ||
1875 | return rc; | |
1876 | } | |
1877 | ||
f6219c16 LC |
1878 | static int mdc_get_info_rpc(struct obd_export *exp, |
1879 | u32 keylen, void *key, | |
1880 | int vallen, void *val) | |
d7e09d03 PT |
1881 | { |
1882 | struct obd_import *imp = class_exp2cliimp(exp); | |
1883 | struct ptlrpc_request *req; | |
1884 | char *tmp; | |
1885 | int rc = -EINVAL; | |
d7e09d03 PT |
1886 | |
1887 | req = ptlrpc_request_alloc(imp, &RQF_MDS_GET_INFO); | |
1888 | if (req == NULL) | |
0a3bdb00 | 1889 | return -ENOMEM; |
d7e09d03 PT |
1890 | |
1891 | req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_KEY, | |
1892 | RCL_CLIENT, keylen); | |
1893 | req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VALLEN, | |
1894 | RCL_CLIENT, sizeof(__u32)); | |
1895 | ||
1896 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GET_INFO); | |
1897 | if (rc) { | |
1898 | ptlrpc_request_free(req); | |
0a3bdb00 | 1899 | return rc; |
d7e09d03 PT |
1900 | } |
1901 | ||
1902 | tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_KEY); | |
1903 | memcpy(tmp, key, keylen); | |
1904 | tmp = req_capsule_client_get(&req->rq_pill, &RMF_GETINFO_VALLEN); | |
1905 | memcpy(tmp, &vallen, sizeof(__u32)); | |
1906 | ||
1907 | req_capsule_set_size(&req->rq_pill, &RMF_GETINFO_VAL, | |
1908 | RCL_SERVER, vallen); | |
1909 | ptlrpc_request_set_replen(req); | |
1910 | ||
1911 | rc = ptlrpc_queue_wait(req); | |
1912 | /* -EREMOTE means the get_info result is partial, and it needs to | |
1913 | * continue on another MDT, see fid2path part in lmv_iocontrol */ | |
1914 | if (rc == 0 || rc == -EREMOTE) { | |
1915 | tmp = req_capsule_server_get(&req->rq_pill, &RMF_GETINFO_VAL); | |
1916 | memcpy(val, tmp, vallen); | |
1917 | if (ptlrpc_rep_need_swab(req)) { | |
1918 | if (KEY_IS(KEY_FID2PATH)) | |
1919 | lustre_swab_fid2path(val); | |
1920 | } | |
1921 | } | |
1922 | ptlrpc_req_finished(req); | |
1923 | ||
0a3bdb00 | 1924 | return rc; |
d7e09d03 PT |
1925 | } |
1926 | ||
1927 | static void lustre_swab_hai(struct hsm_action_item *h) | |
1928 | { | |
1929 | __swab32s(&h->hai_len); | |
1930 | __swab32s(&h->hai_action); | |
1931 | lustre_swab_lu_fid(&h->hai_fid); | |
1932 | lustre_swab_lu_fid(&h->hai_dfid); | |
1933 | __swab64s(&h->hai_cookie); | |
1934 | __swab64s(&h->hai_extent.offset); | |
1935 | __swab64s(&h->hai_extent.length); | |
1936 | __swab64s(&h->hai_gid); | |
1937 | } | |
1938 | ||
1939 | static void lustre_swab_hal(struct hsm_action_list *h) | |
1940 | { | |
1941 | struct hsm_action_item *hai; | |
1942 | int i; | |
1943 | ||
1944 | __swab32s(&h->hal_version); | |
1945 | __swab32s(&h->hal_count); | |
1946 | __swab32s(&h->hal_archive_id); | |
1947 | __swab64s(&h->hal_flags); | |
1948 | hai = hai_zero(h); | |
18dfaebf | 1949 | for (i = 0; i < h->hal_count; i++, hai = hai_next(hai)) |
d7e09d03 | 1950 | lustre_swab_hai(hai); |
d7e09d03 PT |
1951 | } |
1952 | ||
1953 | static void lustre_swab_kuch(struct kuc_hdr *l) | |
1954 | { | |
1955 | __swab16s(&l->kuc_magic); | |
1956 | /* __u8 l->kuc_transport */ | |
1957 | __swab16s(&l->kuc_msgtype); | |
1958 | __swab16s(&l->kuc_msglen); | |
1959 | } | |
1960 | ||
1961 | static int mdc_ioc_hsm_ct_start(struct obd_export *exp, | |
1962 | struct lustre_kernelcomm *lk) | |
1963 | { | |
1964 | struct obd_import *imp = class_exp2cliimp(exp); | |
1965 | __u32 archive = lk->lk_data; | |
1966 | int rc = 0; | |
1967 | ||
1968 | if (lk->lk_group != KUC_GRP_HSM) { | |
1969 | CERROR("Bad copytool group %d\n", lk->lk_group); | |
1970 | return -EINVAL; | |
1971 | } | |
1972 | ||
1973 | CDEBUG(D_HSM, "CT start r%d w%d u%d g%d f%#x\n", lk->lk_rfd, lk->lk_wfd, | |
1974 | lk->lk_uid, lk->lk_group, lk->lk_flags); | |
1975 | ||
1976 | if (lk->lk_flags & LK_FLG_STOP) { | |
d7e09d03 | 1977 | /* Unregister with the coordinator */ |
78eb9092 | 1978 | rc = mdc_ioc_hsm_ct_unregister(imp); |
d7e09d03 | 1979 | } else { |
78eb9092 | 1980 | rc = mdc_ioc_hsm_ct_register(imp, archive); |
d7e09d03 PT |
1981 | } |
1982 | ||
1983 | return rc; | |
1984 | } | |
1985 | ||
1986 | /** | |
1987 | * Send a message to any listening copytools | |
1988 | * @param val KUC message (kuc_hdr + hsm_action_list) | |
1989 | * @param len total length of message | |
1990 | */ | |
1991 | static int mdc_hsm_copytool_send(int len, void *val) | |
1992 | { | |
1993 | struct kuc_hdr *lh = (struct kuc_hdr *)val; | |
1994 | struct hsm_action_list *hal = (struct hsm_action_list *)(lh + 1); | |
d7e09d03 PT |
1995 | |
1996 | if (len < sizeof(*lh) + sizeof(*hal)) { | |
1997 | CERROR("Short HSM message %d < %d\n", len, | |
1998 | (int) (sizeof(*lh) + sizeof(*hal))); | |
0a3bdb00 | 1999 | return -EPROTO; |
d7e09d03 PT |
2000 | } |
2001 | if (lh->kuc_magic == __swab16(KUC_MAGIC)) { | |
2002 | lustre_swab_kuch(lh); | |
2003 | lustre_swab_hal(hal); | |
2004 | } else if (lh->kuc_magic != KUC_MAGIC) { | |
2005 | CERROR("Bad magic %x!=%x\n", lh->kuc_magic, KUC_MAGIC); | |
0a3bdb00 | 2006 | return -EPROTO; |
d7e09d03 PT |
2007 | } |
2008 | ||
ee990b33 SM |
2009 | CDEBUG(D_HSM, |
2010 | "Received message mg=%x t=%d m=%d l=%d actions=%d on %s\n", | |
d7e09d03 PT |
2011 | lh->kuc_magic, lh->kuc_transport, lh->kuc_msgtype, |
2012 | lh->kuc_msglen, hal->hal_count, hal->hal_fsname); | |
2013 | ||
2014 | /* Broadcast to HSM listeners */ | |
da2a7272 | 2015 | return libcfs_kkuc_group_put(KUC_GRP_HSM, lh); |
d7e09d03 PT |
2016 | } |
2017 | ||
2018 | /** | |
2019 | * callback function passed to kuc for re-registering each HSM copytool | |
2020 | * running on MDC, after MDT shutdown/recovery. | |
2021 | * @param data archive id served by the copytool | |
2022 | * @param cb_arg callback argument (obd_import) | |
2023 | */ | |
2024 | static int mdc_hsm_ct_reregister(__u32 data, void *cb_arg) | |
2025 | { | |
2026 | struct obd_import *imp = (struct obd_import *)cb_arg; | |
2027 | __u32 archive = data; | |
2028 | int rc; | |
2029 | ||
2030 | CDEBUG(D_HA, "recover copytool registration to MDT (archive=%#x)\n", | |
2031 | archive); | |
2032 | rc = mdc_ioc_hsm_ct_register(imp, archive); | |
2033 | ||
2034 | /* ignore error if the copytool is already registered */ | |
2035 | return ((rc != 0) && (rc != -EEXIST)) ? rc : 0; | |
2036 | } | |
2037 | ||
2038 | /** | |
2039 | * Re-establish all kuc contexts with MDT | |
2040 | * after MDT shutdown/recovery. | |
2041 | */ | |
2042 | static int mdc_kuc_reregister(struct obd_import *imp) | |
2043 | { | |
2044 | /* re-register HSM agents */ | |
2045 | return libcfs_kkuc_group_foreach(KUC_GRP_HSM, mdc_hsm_ct_reregister, | |
2046 | (void *)imp); | |
2047 | } | |
2048 | ||
f6219c16 LC |
2049 | static int mdc_set_info_async(const struct lu_env *env, |
2050 | struct obd_export *exp, | |
2051 | u32 keylen, void *key, | |
2052 | u32 vallen, void *val, | |
2053 | struct ptlrpc_request_set *set) | |
d7e09d03 PT |
2054 | { |
2055 | struct obd_import *imp = class_exp2cliimp(exp); | |
2056 | int rc; | |
d7e09d03 PT |
2057 | |
2058 | if (KEY_IS(KEY_READ_ONLY)) { | |
2059 | if (vallen != sizeof(int)) | |
0a3bdb00 | 2060 | return -EINVAL; |
d7e09d03 PT |
2061 | |
2062 | spin_lock(&imp->imp_lock); | |
2063 | if (*((int *)val)) { | |
2064 | imp->imp_connect_flags_orig |= OBD_CONNECT_RDONLY; | |
2065 | imp->imp_connect_data.ocd_connect_flags |= | |
2066 | OBD_CONNECT_RDONLY; | |
2067 | } else { | |
2068 | imp->imp_connect_flags_orig &= ~OBD_CONNECT_RDONLY; | |
2069 | imp->imp_connect_data.ocd_connect_flags &= | |
2070 | ~OBD_CONNECT_RDONLY; | |
2071 | } | |
2072 | spin_unlock(&imp->imp_lock); | |
2073 | ||
2074 | rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION, | |
2075 | keylen, key, vallen, val, set); | |
0a3bdb00 | 2076 | return rc; |
d7e09d03 PT |
2077 | } |
2078 | if (KEY_IS(KEY_SPTLRPC_CONF)) { | |
2079 | sptlrpc_conf_client_adapt(exp->exp_obd); | |
0a3bdb00 | 2080 | return 0; |
d7e09d03 PT |
2081 | } |
2082 | if (KEY_IS(KEY_FLUSH_CTX)) { | |
2083 | sptlrpc_import_flush_my_ctx(imp); | |
0a3bdb00 | 2084 | return 0; |
d7e09d03 | 2085 | } |
d7e09d03 PT |
2086 | if (KEY_IS(KEY_CHANGELOG_CLEAR)) { |
2087 | rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION, | |
2088 | keylen, key, vallen, val, set); | |
0a3bdb00 | 2089 | return rc; |
d7e09d03 PT |
2090 | } |
2091 | if (KEY_IS(KEY_HSM_COPYTOOL_SEND)) { | |
2092 | rc = mdc_hsm_copytool_send(vallen, val); | |
0a3bdb00 | 2093 | return rc; |
d7e09d03 PT |
2094 | } |
2095 | ||
2096 | CERROR("Unknown key %s\n", (char *)key); | |
0a3bdb00 | 2097 | return -EINVAL; |
d7e09d03 PT |
2098 | } |
2099 | ||
f6219c16 LC |
2100 | static int mdc_get_info(const struct lu_env *env, struct obd_export *exp, |
2101 | __u32 keylen, void *key, __u32 *vallen, void *val, | |
2102 | struct lov_stripe_md *lsm) | |
d7e09d03 PT |
2103 | { |
2104 | int rc = -EINVAL; | |
2105 | ||
2106 | if (KEY_IS(KEY_MAX_EASIZE)) { | |
2107 | int mdsize, *max_easize; | |
2108 | ||
2109 | if (*vallen != sizeof(int)) | |
0a3bdb00 | 2110 | return -EINVAL; |
44779340 | 2111 | mdsize = *(int *)val; |
d7e09d03 PT |
2112 | if (mdsize > exp->exp_obd->u.cli.cl_max_mds_easize) |
2113 | exp->exp_obd->u.cli.cl_max_mds_easize = mdsize; | |
2114 | max_easize = val; | |
2115 | *max_easize = exp->exp_obd->u.cli.cl_max_mds_easize; | |
0a3bdb00 | 2116 | return 0; |
44779340 BB |
2117 | } else if (KEY_IS(KEY_DEFAULT_EASIZE)) { |
2118 | int *default_easize; | |
2119 | ||
2120 | if (*vallen != sizeof(int)) | |
2121 | return -EINVAL; | |
2122 | default_easize = val; | |
2123 | *default_easize = exp->exp_obd->u.cli.cl_default_mds_easize; | |
2124 | return 0; | |
d7e09d03 PT |
2125 | } else if (KEY_IS(KEY_CONN_DATA)) { |
2126 | struct obd_import *imp = class_exp2cliimp(exp); | |
2127 | struct obd_connect_data *data = val; | |
2128 | ||
2129 | if (*vallen != sizeof(*data)) | |
0a3bdb00 | 2130 | return -EINVAL; |
d7e09d03 PT |
2131 | |
2132 | *data = imp->imp_connect_data; | |
0a3bdb00 | 2133 | return 0; |
d7e09d03 PT |
2134 | } else if (KEY_IS(KEY_TGT_COUNT)) { |
2135 | *((int *)val) = 1; | |
0a3bdb00 | 2136 | return 0; |
d7e09d03 PT |
2137 | } |
2138 | ||
2139 | rc = mdc_get_info_rpc(exp, keylen, key, *vallen, val); | |
2140 | ||
0a3bdb00 | 2141 | return rc; |
d7e09d03 PT |
2142 | } |
2143 | ||
f6219c16 | 2144 | static int mdc_sync(struct obd_export *exp, const struct lu_fid *fid, |
ef2e0f55 | 2145 | struct ptlrpc_request **request) |
d7e09d03 PT |
2146 | { |
2147 | struct ptlrpc_request *req; | |
2148 | int rc; | |
d7e09d03 PT |
2149 | |
2150 | *request = NULL; | |
2151 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_SYNC); | |
2152 | if (req == NULL) | |
0a3bdb00 | 2153 | return -ENOMEM; |
d7e09d03 | 2154 | |
d7e09d03 PT |
2155 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_SYNC); |
2156 | if (rc) { | |
2157 | ptlrpc_request_free(req); | |
0a3bdb00 | 2158 | return rc; |
d7e09d03 PT |
2159 | } |
2160 | ||
ef2e0f55 | 2161 | mdc_pack_body(req, fid, 0, 0, -1, 0); |
d7e09d03 PT |
2162 | |
2163 | ptlrpc_request_set_replen(req); | |
2164 | ||
2165 | rc = ptlrpc_queue_wait(req); | |
2166 | if (rc) | |
2167 | ptlrpc_req_finished(req); | |
2168 | else | |
2169 | *request = req; | |
0a3bdb00 | 2170 | return rc; |
d7e09d03 PT |
2171 | } |
2172 | ||
2173 | static int mdc_import_event(struct obd_device *obd, struct obd_import *imp, | |
2174 | enum obd_import_event event) | |
2175 | { | |
2176 | int rc = 0; | |
2177 | ||
2178 | LASSERT(imp->imp_obd == obd); | |
2179 | ||
2180 | switch (event) { | |
2181 | case IMP_EVENT_DISCON: { | |
2182 | #if 0 | |
2183 | /* XXX Pass event up to OBDs stack. used only for FLD now */ | |
2184 | rc = obd_notify_observer(obd, obd, OBD_NOTIFY_DISCON, NULL); | |
2185 | #endif | |
2186 | break; | |
2187 | } | |
2188 | case IMP_EVENT_INACTIVE: { | |
2189 | struct client_obd *cli = &obd->u.cli; | |
2190 | /* | |
2191 | * Flush current sequence to make client obtain new one | |
2192 | * from server in case of disconnect/reconnect. | |
2193 | */ | |
2194 | if (cli->cl_seq != NULL) | |
2195 | seq_client_flush(cli->cl_seq); | |
2196 | ||
2197 | rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE, NULL); | |
2198 | break; | |
2199 | } | |
2200 | case IMP_EVENT_INVALIDATE: { | |
2201 | struct ldlm_namespace *ns = obd->obd_namespace; | |
2202 | ||
2203 | ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY); | |
2204 | ||
2205 | break; | |
2206 | } | |
2207 | case IMP_EVENT_ACTIVE: | |
2208 | rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL); | |
78eb9092 | 2209 | /* redo the kuc registration after reconnecting */ |
d7e09d03 PT |
2210 | if (rc == 0) |
2211 | rc = mdc_kuc_reregister(imp); | |
2212 | break; | |
2213 | case IMP_EVENT_OCD: | |
2214 | rc = obd_notify_observer(obd, obd, OBD_NOTIFY_OCD, NULL); | |
2215 | break; | |
2216 | case IMP_EVENT_DEACTIVATE: | |
2217 | case IMP_EVENT_ACTIVATE: | |
2218 | break; | |
2219 | default: | |
2220 | CERROR("Unknown import event %x\n", event); | |
2221 | LBUG(); | |
2222 | } | |
0a3bdb00 | 2223 | return rc; |
d7e09d03 PT |
2224 | } |
2225 | ||
2226 | int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid, | |
2227 | struct md_op_data *op_data) | |
2228 | { | |
2229 | struct client_obd *cli = &exp->exp_obd->u.cli; | |
2230 | struct lu_client_seq *seq = cli->cl_seq; | |
29aaf496 | 2231 | |
0a3bdb00 | 2232 | return seq_client_alloc_fid(NULL, seq, fid); |
d7e09d03 PT |
2233 | } |
2234 | ||
f6219c16 | 2235 | static struct obd_uuid *mdc_get_uuid(struct obd_export *exp) |
982ec91f | 2236 | { |
d7e09d03 | 2237 | struct client_obd *cli = &exp->exp_obd->u.cli; |
7436d070 | 2238 | |
d7e09d03 PT |
2239 | return &cli->cl_target_uuid; |
2240 | } | |
2241 | ||
2242 | /** | |
2243 | * Determine whether the lock can be canceled before replaying it during | |
2244 | * recovery, non zero value will be return if the lock can be canceled, | |
2245 | * or zero returned for not | |
2246 | */ | |
2247 | static int mdc_cancel_for_recovery(struct ldlm_lock *lock) | |
2248 | { | |
2249 | if (lock->l_resource->lr_type != LDLM_IBITS) | |
0a3bdb00 | 2250 | return 0; |
d7e09d03 PT |
2251 | |
2252 | /* FIXME: if we ever get into a situation where there are too many | |
2253 | * opened files with open locks on a single node, then we really | |
2254 | * should replay these open locks to reget it */ | |
2255 | if (lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_OPEN) | |
0a3bdb00 | 2256 | return 0; |
d7e09d03 | 2257 | |
0a3bdb00 | 2258 | return 1; |
d7e09d03 PT |
2259 | } |
2260 | ||
2261 | static int mdc_resource_inode_free(struct ldlm_resource *res) | |
2262 | { | |
2263 | if (res->lr_lvb_inode) | |
2264 | res->lr_lvb_inode = NULL; | |
2265 | ||
2266 | return 0; | |
2267 | } | |
2268 | ||
f6219c16 | 2269 | static struct ldlm_valblock_ops inode_lvbo = { |
805e517a | 2270 | .lvbo_free = mdc_resource_inode_free, |
d7e09d03 PT |
2271 | }; |
2272 | ||
903af118 JH |
2273 | static int mdc_llog_init(struct obd_device *obd) |
2274 | { | |
2275 | struct obd_llog_group *olg = &obd->obd_olg; | |
2276 | struct llog_ctxt *ctxt; | |
2277 | int rc; | |
2278 | ||
2279 | rc = llog_setup(NULL, obd, olg, LLOG_CHANGELOG_REPL_CTXT, obd, | |
2280 | &llog_client_ops); | |
2281 | if (rc) | |
2282 | return rc; | |
2283 | ||
2284 | ctxt = llog_group_get_ctxt(olg, LLOG_CHANGELOG_REPL_CTXT); | |
2285 | llog_initiator_connect(ctxt); | |
2286 | llog_ctxt_put(ctxt); | |
2287 | ||
2288 | return 0; | |
2289 | } | |
2290 | ||
2291 | static void mdc_llog_finish(struct obd_device *obd) | |
2292 | { | |
2293 | struct llog_ctxt *ctxt; | |
2294 | ||
2295 | ctxt = llog_get_context(obd, LLOG_CHANGELOG_REPL_CTXT); | |
2296 | if (ctxt) | |
2297 | llog_cleanup(NULL, ctxt); | |
2298 | } | |
2299 | ||
d7e09d03 PT |
2300 | static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg) |
2301 | { | |
2302 | struct client_obd *cli = &obd->u.cli; | |
ea7893bb | 2303 | struct lprocfs_static_vars lvars = { NULL }; |
d7e09d03 | 2304 | int rc; |
d7e09d03 | 2305 | |
7b81779d | 2306 | cli->cl_rpc_lock = kzalloc(sizeof(*cli->cl_rpc_lock), GFP_NOFS); |
d7e09d03 | 2307 | if (!cli->cl_rpc_lock) |
0a3bdb00 | 2308 | return -ENOMEM; |
d7e09d03 PT |
2309 | mdc_init_rpc_lock(cli->cl_rpc_lock); |
2310 | ||
2311 | ptlrpcd_addref(); | |
2312 | ||
7b81779d | 2313 | cli->cl_close_lock = kzalloc(sizeof(*cli->cl_close_lock), GFP_NOFS); |
d5fdc207 JL |
2314 | if (!cli->cl_close_lock) { |
2315 | rc = -ENOMEM; | |
2316 | goto err_rpc_lock; | |
2317 | } | |
d7e09d03 PT |
2318 | mdc_init_rpc_lock(cli->cl_close_lock); |
2319 | ||
2320 | rc = client_obd_setup(obd, cfg); | |
2321 | if (rc) | |
d5fdc207 | 2322 | goto err_close_lock; |
d7e09d03 | 2323 | lprocfs_mdc_init_vars(&lvars); |
9b801302 | 2324 | lprocfs_obd_setup(obd, lvars.obd_vars, lvars.sysfs_vars); |
d7e09d03 PT |
2325 | sptlrpc_lprocfs_cliobd_attach(obd); |
2326 | ptlrpc_lprocfs_register_obd(obd); | |
2327 | ||
2328 | ns_register_cancel(obd->obd_namespace, mdc_cancel_for_recovery); | |
2329 | ||
2330 | obd->obd_namespace->ns_lvbo = &inode_lvbo; | |
2331 | ||
903af118 | 2332 | rc = mdc_llog_init(obd); |
d7e09d03 PT |
2333 | if (rc) { |
2334 | mdc_cleanup(obd); | |
2335 | CERROR("failed to setup llogging subsystems\n"); | |
2336 | } | |
2337 | ||
0a3bdb00 | 2338 | return rc; |
d7e09d03 PT |
2339 | |
2340 | err_close_lock: | |
7b81779d | 2341 | kfree(cli->cl_close_lock); |
d7e09d03 | 2342 | err_rpc_lock: |
7b81779d | 2343 | kfree(cli->cl_rpc_lock); |
d7e09d03 | 2344 | ptlrpcd_decref(); |
0a3bdb00 | 2345 | return rc; |
d7e09d03 PT |
2346 | } |
2347 | ||
2348 | /* Initialize the default and maximum LOV EA and cookie sizes. This allows | |
44779340 BB |
2349 | * us to make MDS RPCs with large enough reply buffers to hold a default |
2350 | * sized EA and cookie without having to calculate this (via a call into the | |
2351 | * LOV + OSCs) each time we make an RPC. The maximum size is also tracked | |
2352 | * but not used to avoid wastefully vmalloc()'ing large reply buffers when | |
2353 | * a large number of stripes is possible. If a larger reply buffer is | |
2354 | * required it will be reallocated in the ptlrpc layer due to overflow. | |
2355 | */ | |
d7e09d03 | 2356 | static int mdc_init_ea_size(struct obd_export *exp, int easize, |
44779340 | 2357 | int def_easize, int cookiesize, int def_cookiesize) |
d7e09d03 PT |
2358 | { |
2359 | struct obd_device *obd = exp->exp_obd; | |
2360 | struct client_obd *cli = &obd->u.cli; | |
d7e09d03 PT |
2361 | |
2362 | if (cli->cl_max_mds_easize < easize) | |
2363 | cli->cl_max_mds_easize = easize; | |
2364 | ||
2365 | if (cli->cl_default_mds_easize < def_easize) | |
2366 | cli->cl_default_mds_easize = def_easize; | |
2367 | ||
2368 | if (cli->cl_max_mds_cookiesize < cookiesize) | |
2369 | cli->cl_max_mds_cookiesize = cookiesize; | |
2370 | ||
44779340 BB |
2371 | if (cli->cl_default_mds_cookiesize < def_cookiesize) |
2372 | cli->cl_default_mds_cookiesize = def_cookiesize; | |
2373 | ||
0a3bdb00 | 2374 | return 0; |
d7e09d03 PT |
2375 | } |
2376 | ||
2377 | static int mdc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage) | |
2378 | { | |
d7e09d03 PT |
2379 | switch (stage) { |
2380 | case OBD_CLEANUP_EARLY: | |
2381 | break; | |
2382 | case OBD_CLEANUP_EXPORTS: | |
2383 | /* Failsafe, ok if racy */ | |
2384 | if (obd->obd_type->typ_refcnt <= 1) | |
2385 | libcfs_kkuc_group_rem(0, KUC_GRP_HSM); | |
2386 | ||
2387 | obd_cleanup_client_import(obd); | |
2388 | ptlrpc_lprocfs_unregister_obd(obd); | |
2389 | lprocfs_obd_cleanup(obd); | |
2390 | ||
903af118 | 2391 | mdc_llog_finish(obd); |
d7e09d03 PT |
2392 | break; |
2393 | } | |
eb967126 | 2394 | return 0; |
d7e09d03 PT |
2395 | } |
2396 | ||
2397 | static int mdc_cleanup(struct obd_device *obd) | |
2398 | { | |
2399 | struct client_obd *cli = &obd->u.cli; | |
2400 | ||
7b81779d JL |
2401 | kfree(cli->cl_rpc_lock); |
2402 | kfree(cli->cl_close_lock); | |
d7e09d03 PT |
2403 | |
2404 | ptlrpcd_decref(); | |
2405 | ||
2406 | return client_obd_cleanup(obd); | |
2407 | } | |
2408 | ||
21aef7d9 | 2409 | static int mdc_process_config(struct obd_device *obd, u32 len, void *buf) |
d7e09d03 PT |
2410 | { |
2411 | struct lustre_cfg *lcfg = buf; | |
ea7893bb | 2412 | struct lprocfs_static_vars lvars = { NULL }; |
d7e09d03 PT |
2413 | int rc = 0; |
2414 | ||
2415 | lprocfs_mdc_init_vars(&lvars); | |
2416 | switch (lcfg->lcfg_command) { | |
2417 | default: | |
2418 | rc = class_process_proc_param(PARAM_MDC, lvars.obd_vars, | |
2419 | lcfg, obd); | |
2420 | if (rc > 0) | |
2421 | rc = 0; | |
2422 | break; | |
2423 | } | |
eb44520b | 2424 | return rc; |
d7e09d03 PT |
2425 | } |
2426 | ||
d7e09d03 | 2427 | /* get remote permission for current user on fid */ |
f6219c16 | 2428 | static int mdc_get_remote_perm(struct obd_export *exp, const struct lu_fid *fid, |
ef2e0f55 | 2429 | __u32 suppgid, struct ptlrpc_request **request) |
d7e09d03 PT |
2430 | { |
2431 | struct ptlrpc_request *req; | |
2432 | int rc; | |
d7e09d03 PT |
2433 | |
2434 | LASSERT(client_is_remote(exp)); | |
2435 | ||
2436 | *request = NULL; | |
2437 | req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR); | |
2438 | if (req == NULL) | |
0a3bdb00 | 2439 | return -ENOMEM; |
d7e09d03 | 2440 | |
d7e09d03 PT |
2441 | rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_GETATTR); |
2442 | if (rc) { | |
2443 | ptlrpc_request_free(req); | |
0a3bdb00 | 2444 | return rc; |
d7e09d03 PT |
2445 | } |
2446 | ||
ef2e0f55 | 2447 | mdc_pack_body(req, fid, OBD_MD_FLRMTPERM, 0, suppgid, 0); |
d7e09d03 PT |
2448 | |
2449 | req_capsule_set_size(&req->rq_pill, &RMF_ACL, RCL_SERVER, | |
2450 | sizeof(struct mdt_remote_perm)); | |
2451 | ||
2452 | ptlrpc_request_set_replen(req); | |
2453 | ||
2454 | rc = ptlrpc_queue_wait(req); | |
2455 | if (rc) | |
2456 | ptlrpc_req_finished(req); | |
2457 | else | |
2458 | *request = req; | |
0a3bdb00 | 2459 | return rc; |
d7e09d03 PT |
2460 | } |
2461 | ||
f6219c16 | 2462 | static struct obd_ops mdc_obd_ops = { |
d7e09d03 PT |
2463 | .o_owner = THIS_MODULE, |
2464 | .o_setup = mdc_setup, | |
2465 | .o_precleanup = mdc_precleanup, | |
2466 | .o_cleanup = mdc_cleanup, | |
2467 | .o_add_conn = client_import_add_conn, | |
2468 | .o_del_conn = client_import_del_conn, | |
a7c6d5a6 | 2469 | .o_connect = client_connect_import, |
d7e09d03 PT |
2470 | .o_disconnect = client_disconnect_export, |
2471 | .o_iocontrol = mdc_iocontrol, | |
2472 | .o_set_info_async = mdc_set_info_async, | |
2473 | .o_statfs = mdc_statfs, | |
d7e09d03 PT |
2474 | .o_fid_init = client_fid_init, |
2475 | .o_fid_fini = client_fid_fini, | |
2476 | .o_fid_alloc = mdc_fid_alloc, | |
2477 | .o_import_event = mdc_import_event, | |
d7e09d03 PT |
2478 | .o_get_info = mdc_get_info, |
2479 | .o_process_config = mdc_process_config, | |
2480 | .o_get_uuid = mdc_get_uuid, | |
2481 | .o_quotactl = mdc_quotactl, | |
2482 | .o_quotacheck = mdc_quotacheck | |
2483 | }; | |
2484 | ||
f6219c16 | 2485 | static struct md_ops mdc_md_ops = { |
d7e09d03 PT |
2486 | .m_getstatus = mdc_getstatus, |
2487 | .m_null_inode = mdc_null_inode, | |
2488 | .m_find_cbdata = mdc_find_cbdata, | |
2489 | .m_close = mdc_close, | |
2490 | .m_create = mdc_create, | |
2491 | .m_done_writing = mdc_done_writing, | |
2492 | .m_enqueue = mdc_enqueue, | |
2493 | .m_getattr = mdc_getattr, | |
2494 | .m_getattr_name = mdc_getattr_name, | |
2495 | .m_intent_lock = mdc_intent_lock, | |
2496 | .m_link = mdc_link, | |
2497 | .m_is_subdir = mdc_is_subdir, | |
2498 | .m_rename = mdc_rename, | |
2499 | .m_setattr = mdc_setattr, | |
2500 | .m_setxattr = mdc_setxattr, | |
2501 | .m_getxattr = mdc_getxattr, | |
2502 | .m_sync = mdc_sync, | |
2503 | .m_readpage = mdc_readpage, | |
2504 | .m_unlink = mdc_unlink, | |
2505 | .m_cancel_unused = mdc_cancel_unused, | |
2506 | .m_init_ea_size = mdc_init_ea_size, | |
2507 | .m_set_lock_data = mdc_set_lock_data, | |
2508 | .m_lock_match = mdc_lock_match, | |
2509 | .m_get_lustre_md = mdc_get_lustre_md, | |
2510 | .m_free_lustre_md = mdc_free_lustre_md, | |
2511 | .m_set_open_replay_data = mdc_set_open_replay_data, | |
2512 | .m_clear_open_replay_data = mdc_clear_open_replay_data, | |
d7e09d03 PT |
2513 | .m_get_remote_perm = mdc_get_remote_perm, |
2514 | .m_intent_getattr_async = mdc_intent_getattr_async, | |
2515 | .m_revalidate_lock = mdc_revalidate_lock | |
2516 | }; | |
2517 | ||
f6219c16 | 2518 | static int __init mdc_init(void) |
d7e09d03 | 2519 | { |
ea7893bb | 2520 | struct lprocfs_static_vars lvars = { NULL }; |
7436d070 | 2521 | |
d7e09d03 PT |
2522 | lprocfs_mdc_init_vars(&lvars); |
2523 | ||
2962b440 | 2524 | return class_register_type(&mdc_obd_ops, &mdc_md_ops, |
d7e09d03 | 2525 | LUSTRE_MDC_NAME, NULL); |
d7e09d03 PT |
2526 | } |
2527 | ||
2528 | static void /*__exit*/ mdc_exit(void) | |
2529 | { | |
2530 | class_unregister_type(LUSTRE_MDC_NAME); | |
2531 | } | |
2532 | ||
2533 | MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>"); | |
2534 | MODULE_DESCRIPTION("Lustre Metadata Client"); | |
2535 | MODULE_LICENSE("GPL"); | |
2536 | ||
2537 | module_init(mdc_init); | |
2538 | module_exit(mdc_exit); |