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staging: lustre: remove RETURN macro
[deliverable/linux.git] / drivers / staging / lustre / lustre / obdclass / llog_test.c
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) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
29 *
30 * Copyright (c) 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 * lustre/obdclass/llog_test.c
37 *
38 * Author: Phil Schwan <phil@clusterfs.com>
39 * Author: Mikhail Pershin <mike.pershin@intel.com>
40 */
41
42 #define DEBUG_SUBSYSTEM S_CLASS
43
44 #include <linux/module.h>
45 #include <linux/init.h>
46
47 #include <obd_class.h>
48 #include <lustre_fid.h>
49 #include <lustre_log.h>
50
51 /* This is slightly more than the number of records that can fit into a
52 * single llog file, because the llog_log_header takes up some of the
53 * space in the first block that cannot be used for the bitmap. */
54 #define LLOG_TEST_RECNUM (LLOG_CHUNK_SIZE * 8)
55
56 static int llog_test_rand;
57 static struct obd_uuid uuid = { .uuid = "test_uuid" };
58 static struct llog_logid cat_logid;
59
60 struct llog_mini_rec {
61 struct llog_rec_hdr lmr_hdr;
62 struct llog_rec_tail lmr_tail;
63 } __attribute__((packed));
64
65 static int verify_handle(char *test, struct llog_handle *llh, int num_recs)
66 {
67 int i;
68 int last_idx = 0;
69 int active_recs = 0;
70
71 for (i = 0; i < LLOG_BITMAP_BYTES * 8; i++) {
72 if (ext2_test_bit(i, llh->lgh_hdr->llh_bitmap)) {
73 last_idx = i;
74 active_recs++;
75 }
76 }
77
78 if (active_recs != num_recs) {
79 CERROR("%s: expected %d active recs after write, found %d\n",
80 test, num_recs, active_recs);
81 return -ERANGE;
82 }
83
84 if (llh->lgh_hdr->llh_count != num_recs) {
85 CERROR("%s: handle->count is %d, expected %d after write\n",
86 test, llh->lgh_hdr->llh_count, num_recs);
87 return -ERANGE;
88 }
89
90 if (llh->lgh_last_idx < last_idx) {
91 CERROR("%s: handle->last_idx is %d, expected %d after write\n",
92 test, llh->lgh_last_idx, last_idx);
93 return -ERANGE;
94 }
95
96 return 0;
97 }
98
99 /* Test named-log create/open, close */
100 static int llog_test_1(const struct lu_env *env,
101 struct obd_device *obd, char *name)
102 {
103 struct llog_handle *llh;
104 struct llog_ctxt *ctxt;
105 int rc;
106 int rc2;
107
108 CWARN("1a: create a log with name: %s\n", name);
109 ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
110 LASSERT(ctxt);
111
112 rc = llog_open_create(env, ctxt, &llh, NULL, name);
113 if (rc) {
114 CERROR("1a: llog_create with name %s failed: %d\n", name, rc);
115 GOTO(out, rc);
116 }
117 rc = llog_init_handle(env, llh, LLOG_F_IS_PLAIN, &uuid);
118 if (rc) {
119 CERROR("1a: can't init llog handle: %d\n", rc);
120 GOTO(out_close, rc);
121 }
122
123 rc = verify_handle("1", llh, 1);
124
125 CWARN("1b: close newly-created log\n");
126 out_close:
127 rc2 = llog_close(env, llh);
128 if (rc2) {
129 CERROR("1b: close log %s failed: %d\n", name, rc2);
130 if (rc == 0)
131 rc = rc2;
132 }
133 out:
134 llog_ctxt_put(ctxt);
135 return rc;
136 }
137
138 /* Test named-log reopen; returns opened log on success */
139 static int llog_test_2(const struct lu_env *env, struct obd_device *obd,
140 char *name, struct llog_handle **llh)
141 {
142 struct llog_ctxt *ctxt;
143 struct llog_handle *loghandle;
144 struct llog_logid logid;
145 int rc;
146
147 CWARN("2a: re-open a log with name: %s\n", name);
148 ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
149 LASSERT(ctxt);
150
151 rc = llog_open(env, ctxt, llh, NULL, name, LLOG_OPEN_EXISTS);
152 if (rc) {
153 CERROR("2a: re-open log with name %s failed: %d\n", name, rc);
154 GOTO(out_put, rc);
155 }
156
157 rc = llog_init_handle(env, *llh, LLOG_F_IS_PLAIN, &uuid);
158 if (rc) {
159 CERROR("2a: can't init llog handle: %d\n", rc);
160 GOTO(out_close_llh, rc);
161 }
162
163 rc = verify_handle("2", *llh, 1);
164 if (rc)
165 GOTO(out_close_llh, rc);
166
167 /* XXX: there is known issue with tests 2b, MGS is not able to create
168 * anonymous llog, exit now to allow following tests run.
169 * It is fixed in upcoming llog over OSD code */
170 GOTO(out_put, rc);
171
172 CWARN("2b: create a log without specified NAME & LOGID\n");
173 rc = llog_open_create(env, ctxt, &loghandle, NULL, NULL);
174 if (rc) {
175 CERROR("2b: create log failed\n");
176 GOTO(out_close_llh, rc);
177 }
178 rc = llog_init_handle(env, loghandle, LLOG_F_IS_PLAIN, &uuid);
179 if (rc) {
180 CERROR("2b: can't init llog handle: %d\n", rc);
181 GOTO(out_close, rc);
182 }
183
184 logid = loghandle->lgh_id;
185 llog_close(env, loghandle);
186
187 CWARN("2c: re-open the log by LOGID\n");
188 rc = llog_open(env, ctxt, &loghandle, &logid, NULL, LLOG_OPEN_EXISTS);
189 if (rc) {
190 CERROR("2c: re-open log by LOGID failed\n");
191 GOTO(out_close_llh, rc);
192 }
193
194 rc = llog_init_handle(env, loghandle, LLOG_F_IS_PLAIN, &uuid);
195 if (rc) {
196 CERROR("2c: can't init llog handle: %d\n", rc);
197 GOTO(out_close, rc);
198 }
199
200 CWARN("2b: destroy this log\n");
201 rc = llog_destroy(env, loghandle);
202 if (rc)
203 CERROR("2d: destroy log failed\n");
204 out_close:
205 llog_close(env, loghandle);
206 out_close_llh:
207 if (rc)
208 llog_close(env, *llh);
209 out_put:
210 llog_ctxt_put(ctxt);
211
212 return rc;
213 }
214
215 /* Test record writing, single and in bulk */
216 static int llog_test_3(const struct lu_env *env, struct obd_device *obd,
217 struct llog_handle *llh)
218 {
219 struct llog_gen_rec lgr;
220 int rc, i;
221 int num_recs = 1; /* 1 for the header */
222
223 lgr.lgr_hdr.lrh_len = lgr.lgr_tail.lrt_len = sizeof(lgr);
224 lgr.lgr_hdr.lrh_type = LLOG_GEN_REC;
225
226 CWARN("3a: write one create_rec\n");
227 rc = llog_write(env, llh, &lgr.lgr_hdr, NULL, 0, NULL, -1);
228 num_recs++;
229 if (rc < 0) {
230 CERROR("3a: write one log record failed: %d\n", rc);
231 return rc;
232 }
233
234 rc = verify_handle("3a", llh, num_recs);
235 if (rc)
236 return rc;
237
238 CWARN("3b: write 10 cfg log records with 8 bytes bufs\n");
239 for (i = 0; i < 10; i++) {
240 struct llog_rec_hdr hdr;
241 char buf[8];
242
243 hdr.lrh_len = 8;
244 hdr.lrh_type = OBD_CFG_REC;
245 memset(buf, 0, sizeof buf);
246 rc = llog_write(env, llh, &hdr, NULL, 0, buf, -1);
247 if (rc < 0) {
248 CERROR("3b: write 10 records failed at #%d: %d\n",
249 i + 1, rc);
250 return rc;
251 }
252 num_recs++;
253 }
254
255 rc = verify_handle("3b", llh, num_recs);
256 if (rc)
257 return rc;
258
259 CWARN("3c: write 1000 more log records\n");
260 for (i = 0; i < 1000; i++) {
261 rc = llog_write(env, llh, &lgr.lgr_hdr, NULL, 0, NULL, -1);
262 if (rc < 0) {
263 CERROR("3c: write 1000 records failed at #%d: %d\n",
264 i + 1, rc);
265 return rc;
266 }
267 num_recs++;
268 }
269
270 rc = verify_handle("3c", llh, num_recs);
271 if (rc)
272 return rc;
273
274 CWARN("3d: write log more than BITMAP_SIZE, return -ENOSPC\n");
275 for (i = 0; i < LLOG_BITMAP_SIZE(llh->lgh_hdr) + 1; i++) {
276 struct llog_rec_hdr hdr;
277 char buf_even[24];
278 char buf_odd[32];
279
280 memset(buf_odd, 0, sizeof buf_odd);
281 memset(buf_even, 0, sizeof buf_even);
282 if ((i % 2) == 0) {
283 hdr.lrh_len = 24;
284 hdr.lrh_type = OBD_CFG_REC;
285 rc = llog_write(env, llh, &hdr, NULL, 0, buf_even, -1);
286 } else {
287 hdr.lrh_len = 32;
288 hdr.lrh_type = OBD_CFG_REC;
289 rc = llog_write(env, llh, &hdr, NULL, 0, buf_odd, -1);
290 }
291 if (rc == -ENOSPC) {
292 break;
293 } else if (rc < 0) {
294 CERROR("3d: write recs failed at #%d: %d\n",
295 i + 1, rc);
296 return rc;
297 }
298 num_recs++;
299 }
300 if (rc != -ENOSPC) {
301 CWARN("3d: write record more than BITMAP size!\n");
302 return -EINVAL;
303 }
304 CWARN("3d: wrote %d more records before end of llog is reached\n",
305 num_recs);
306
307 rc = verify_handle("3d", llh, num_recs);
308
309 return rc;
310 }
311
312 /* Test catalogue additions */
313 static int llog_test_4(const struct lu_env *env, struct obd_device *obd)
314 {
315 struct llog_handle *cath;
316 char name[10];
317 int rc, rc2, i, buflen;
318 struct llog_mini_rec lmr;
319 struct llog_cookie cookie;
320 struct llog_ctxt *ctxt;
321 int num_recs = 0;
322 char *buf;
323 struct llog_rec_hdr rec;
324
325 ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
326 LASSERT(ctxt);
327
328 lmr.lmr_hdr.lrh_len = lmr.lmr_tail.lrt_len = LLOG_MIN_REC_SIZE;
329 lmr.lmr_hdr.lrh_type = 0xf00f00;
330
331 sprintf(name, "%x", llog_test_rand + 1);
332 CWARN("4a: create a catalog log with name: %s\n", name);
333 rc = llog_open_create(env, ctxt, &cath, NULL, name);
334 if (rc) {
335 CERROR("4a: llog_create with name %s failed: %d\n", name, rc);
336 GOTO(ctxt_release, rc);
337 }
338 rc = llog_init_handle(env, cath, LLOG_F_IS_CAT, &uuid);
339 if (rc) {
340 CERROR("4a: can't init llog handle: %d\n", rc);
341 GOTO(out, rc);
342 }
343
344 num_recs++;
345 cat_logid = cath->lgh_id;
346
347 CWARN("4b: write 1 record into the catalog\n");
348 rc = llog_cat_add(env, cath, &lmr.lmr_hdr, &cookie, NULL);
349 if (rc != 1) {
350 CERROR("4b: write 1 catalog record failed at: %d\n", rc);
351 GOTO(out, rc);
352 }
353 num_recs++;
354 rc = verify_handle("4b", cath, 2);
355 if (rc)
356 GOTO(out, rc);
357
358 rc = verify_handle("4b", cath->u.chd.chd_current_log, num_recs);
359 if (rc)
360 GOTO(out, rc);
361
362 CWARN("4c: cancel 1 log record\n");
363 rc = llog_cat_cancel_records(env, cath, 1, &cookie);
364 if (rc) {
365 CERROR("4c: cancel 1 catalog based record failed: %d\n", rc);
366 GOTO(out, rc);
367 }
368 num_recs--;
369
370 rc = verify_handle("4c", cath->u.chd.chd_current_log, num_recs);
371 if (rc)
372 GOTO(out, rc);
373
374 CWARN("4d: write %d more log records\n", LLOG_TEST_RECNUM);
375 for (i = 0; i < LLOG_TEST_RECNUM; i++) {
376 rc = llog_cat_add(env, cath, &lmr.lmr_hdr, NULL, NULL);
377 if (rc) {
378 CERROR("4d: write %d records failed at #%d: %d\n",
379 LLOG_TEST_RECNUM, i + 1, rc);
380 GOTO(out, rc);
381 }
382 num_recs++;
383 }
384
385 /* make sure new plain llog appears */
386 rc = verify_handle("4d", cath, 3);
387 if (rc)
388 GOTO(out, rc);
389
390 CWARN("4e: add 5 large records, one record per block\n");
391 buflen = LLOG_CHUNK_SIZE - sizeof(struct llog_rec_hdr) -
392 sizeof(struct llog_rec_tail);
393 OBD_ALLOC(buf, buflen);
394 if (buf == NULL)
395 GOTO(out, rc = -ENOMEM);
396 for (i = 0; i < 5; i++) {
397 rec.lrh_len = buflen;
398 rec.lrh_type = OBD_CFG_REC;
399 rc = llog_cat_add(env, cath, &rec, NULL, buf);
400 if (rc) {
401 CERROR("4e: write 5 records failed at #%d: %d\n",
402 i + 1, rc);
403 GOTO(out_free, rc);
404 }
405 num_recs++;
406 }
407 out_free:
408 OBD_FREE(buf, buflen);
409 out:
410 CWARN("4f: put newly-created catalog\n");
411 rc2 = llog_cat_close(env, cath);
412 if (rc2) {
413 CERROR("4: close log %s failed: %d\n", name, rc2);
414 if (rc == 0)
415 rc = rc2;
416 }
417 ctxt_release:
418 llog_ctxt_put(ctxt);
419 return rc;
420 }
421
422 static int cat_counter;
423
424 static int cat_print_cb(const struct lu_env *env, struct llog_handle *llh,
425 struct llog_rec_hdr *rec, void *data)
426 {
427 struct llog_logid_rec *lir = (struct llog_logid_rec *)rec;
428 struct lu_fid fid = {0};
429
430 if (rec->lrh_type != LLOG_LOGID_MAGIC) {
431 CERROR("invalid record in catalog\n");
432 return -EINVAL;
433 }
434
435 logid_to_fid(&lir->lid_id, &fid);
436
437 CWARN("seeing record at index %d - "DFID" in log "DFID"\n",
438 rec->lrh_index, PFID(&fid),
439 PFID(lu_object_fid(&llh->lgh_obj->do_lu)));
440
441 cat_counter++;
442
443 return 0;
444 }
445
446 static int plain_counter;
447
448 static int plain_print_cb(const struct lu_env *env, struct llog_handle *llh,
449 struct llog_rec_hdr *rec, void *data)
450 {
451 struct lu_fid fid = {0};
452
453 if (!(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN)) {
454 CERROR("log is not plain\n");
455 return -EINVAL;
456 }
457
458 logid_to_fid(&llh->lgh_id, &fid);
459
460 CDEBUG(D_INFO, "seeing record at index %d in log "DFID"\n",
461 rec->lrh_index, PFID(&fid));
462
463 plain_counter++;
464
465 return 0;
466 }
467
468 static int cancel_count;
469
470 static int llog_cancel_rec_cb(const struct lu_env *env,
471 struct llog_handle *llh,
472 struct llog_rec_hdr *rec, void *data)
473 {
474 struct llog_cookie cookie;
475
476 if (!(llh->lgh_hdr->llh_flags & LLOG_F_IS_PLAIN)) {
477 CERROR("log is not plain\n");
478 return -EINVAL;
479 }
480
481 cookie.lgc_lgl = llh->lgh_id;
482 cookie.lgc_index = rec->lrh_index;
483
484 llog_cat_cancel_records(env, llh->u.phd.phd_cat_handle, 1, &cookie);
485 cancel_count++;
486 if (cancel_count == LLOG_TEST_RECNUM)
487 return -LLOG_EEMPTY;
488 return 0;
489 }
490
491 /* Test log and catalogue processing */
492 static int llog_test_5(const struct lu_env *env, struct obd_device *obd)
493 {
494 struct llog_handle *llh = NULL;
495 char name[10];
496 int rc, rc2;
497 struct llog_mini_rec lmr;
498 struct llog_ctxt *ctxt;
499
500 ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
501 LASSERT(ctxt);
502
503 lmr.lmr_hdr.lrh_len = lmr.lmr_tail.lrt_len = LLOG_MIN_REC_SIZE;
504 lmr.lmr_hdr.lrh_type = 0xf00f00;
505
506 CWARN("5a: re-open catalog by id\n");
507 rc = llog_open(env, ctxt, &llh, &cat_logid, NULL, LLOG_OPEN_EXISTS);
508 if (rc) {
509 CERROR("5a: llog_create with logid failed: %d\n", rc);
510 GOTO(out_put, rc);
511 }
512
513 rc = llog_init_handle(env, llh, LLOG_F_IS_CAT, &uuid);
514 if (rc) {
515 CERROR("5a: can't init llog handle: %d\n", rc);
516 GOTO(out, rc);
517 }
518
519 CWARN("5b: print the catalog entries.. we expect 2\n");
520 cat_counter = 0;
521 rc = llog_process(env, llh, cat_print_cb, "test 5", NULL);
522 if (rc) {
523 CERROR("5b: process with cat_print_cb failed: %d\n", rc);
524 GOTO(out, rc);
525 }
526 if (cat_counter != 2) {
527 CERROR("5b: %d entries in catalog\n", cat_counter);
528 GOTO(out, rc = -EINVAL);
529 }
530
531 CWARN("5c: Cancel %d records, see one log zapped\n", LLOG_TEST_RECNUM);
532 cancel_count = 0;
533 rc = llog_cat_process(env, llh, llog_cancel_rec_cb, "foobar", 0, 0);
534 if (rc != -LLOG_EEMPTY) {
535 CERROR("5c: process with cat_cancel_cb failed: %d\n", rc);
536 GOTO(out, rc);
537 }
538
539 CWARN("5c: print the catalog entries.. we expect 1\n");
540 cat_counter = 0;
541 rc = llog_process(env, llh, cat_print_cb, "test 5", NULL);
542 if (rc) {
543 CERROR("5c: process with cat_print_cb failed: %d\n", rc);
544 GOTO(out, rc);
545 }
546 if (cat_counter != 1) {
547 CERROR("5c: %d entries in catalog\n", cat_counter);
548 GOTO(out, rc = -EINVAL);
549 }
550
551 CWARN("5d: add 1 record to the log with many canceled empty pages\n");
552 rc = llog_cat_add(env, llh, &lmr.lmr_hdr, NULL, NULL);
553 if (rc) {
554 CERROR("5d: add record to the log with many canceled empty "
555 "pages failed\n");
556 GOTO(out, rc);
557 }
558
559 CWARN("5e: print plain log entries.. expect 6\n");
560 plain_counter = 0;
561 rc = llog_cat_process(env, llh, plain_print_cb, "foobar", 0, 0);
562 if (rc) {
563 CERROR("5e: process with plain_print_cb failed: %d\n", rc);
564 GOTO(out, rc);
565 }
566 if (plain_counter != 6) {
567 CERROR("5e: found %d records\n", plain_counter);
568 GOTO(out, rc = -EINVAL);
569 }
570
571 CWARN("5f: print plain log entries reversely.. expect 6\n");
572 plain_counter = 0;
573 rc = llog_cat_reverse_process(env, llh, plain_print_cb, "foobar");
574 if (rc) {
575 CERROR("5f: reversely process with plain_print_cb failed:"
576 "%d\n", rc);
577 GOTO(out, rc);
578 }
579 if (plain_counter != 6) {
580 CERROR("5f: found %d records\n", plain_counter);
581 GOTO(out, rc = -EINVAL);
582 }
583
584 out:
585 CWARN("5g: close re-opened catalog\n");
586 rc2 = llog_cat_close(env, llh);
587 if (rc2) {
588 CERROR("5g: close log %s failed: %d\n", name, rc2);
589 if (rc == 0)
590 rc = rc2;
591 }
592 out_put:
593 llog_ctxt_put(ctxt);
594
595 return rc;
596 }
597
598 /* Test client api; open log by name and process */
599 static int llog_test_6(const struct lu_env *env, struct obd_device *obd,
600 char *name)
601 {
602 struct obd_device *mgc_obd;
603 struct llog_ctxt *ctxt;
604 struct obd_uuid *mgs_uuid;
605 struct obd_export *exp;
606 struct obd_uuid uuid = { "LLOG_TEST6_UUID" };
607 struct llog_handle *llh = NULL;
608 struct llog_ctxt *nctxt;
609 int rc, rc2;
610
611 ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
612 LASSERT(ctxt);
613 mgs_uuid = &ctxt->loc_exp->exp_obd->obd_uuid;
614
615 CWARN("6a: re-open log %s using client API\n", name);
616 mgc_obd = class_find_client_obd(mgs_uuid, LUSTRE_MGC_NAME, NULL);
617 if (mgc_obd == NULL) {
618 CERROR("6a: no MGC devices connected to %s found.\n",
619 mgs_uuid->uuid);
620 GOTO(ctxt_release, rc = -ENOENT);
621 }
622
623 rc = obd_connect(NULL, &exp, mgc_obd, &uuid,
624 NULL /* obd_connect_data */, NULL);
625 if (rc != -EALREADY) {
626 CERROR("6a: connect on connected MGC (%s) failed to return"
627 " -EALREADY", mgc_obd->obd_name);
628 if (rc == 0)
629 obd_disconnect(exp);
630 GOTO(ctxt_release, rc = -EINVAL);
631 }
632
633 nctxt = llog_get_context(mgc_obd, LLOG_CONFIG_REPL_CTXT);
634 rc = llog_open(env, nctxt, &llh, NULL, name, LLOG_OPEN_EXISTS);
635 if (rc) {
636 CERROR("6a: llog_open failed %d\n", rc);
637 GOTO(nctxt_put, rc);
638 }
639
640 rc = llog_init_handle(env, llh, LLOG_F_IS_PLAIN, NULL);
641 if (rc) {
642 CERROR("6a: llog_init_handle failed %d\n", rc);
643 GOTO(parse_out, rc);
644 }
645
646 plain_counter = 1; /* llog header is first record */
647 CWARN("6b: process log %s using client API\n", name);
648 rc = llog_process(env, llh, plain_print_cb, NULL, NULL);
649 if (rc)
650 CERROR("6b: llog_process failed %d\n", rc);
651 CWARN("6b: processed %d records\n", plain_counter);
652
653 rc = verify_handle("6b", llh, plain_counter);
654 if (rc)
655 GOTO(parse_out, rc);
656
657 plain_counter = 1; /* llog header is first record */
658 CWARN("6c: process log %s reversely using client API\n", name);
659 rc = llog_reverse_process(env, llh, plain_print_cb, NULL, NULL);
660 if (rc)
661 CERROR("6c: llog_reverse_process failed %d\n", rc);
662 CWARN("6c: processed %d records\n", plain_counter);
663
664 rc = verify_handle("6c", llh, plain_counter);
665 if (rc)
666 GOTO(parse_out, rc);
667
668 parse_out:
669 rc2 = llog_close(env, llh);
670 if (rc2) {
671 CERROR("6: llog_close failed: rc = %d\n", rc2);
672 if (rc == 0)
673 rc = rc2;
674 }
675 nctxt_put:
676 llog_ctxt_put(nctxt);
677 ctxt_release:
678 llog_ctxt_put(ctxt);
679 return rc;
680 }
681
682 static union {
683 struct llog_rec_hdr lrh; /* common header */
684 struct llog_logid_rec llr; /* LLOG_LOGID_MAGIC */
685 struct llog_unlink64_rec lur; /* MDS_UNLINK64_REC */
686 struct llog_setattr64_rec lsr64; /* MDS_SETATTR64_REC */
687 struct llog_size_change_rec lscr; /* OST_SZ_REC */
688 struct llog_changelog_rec lcr; /* CHANGELOG_REC */
689 struct llog_changelog_user_rec lcur; /* CHANGELOG_USER_REC */
690 struct llog_gen_rec lgr; /* LLOG_GEN_REC */
691 } llog_records;
692
693 static int test_7_print_cb(const struct lu_env *env, struct llog_handle *llh,
694 struct llog_rec_hdr *rec, void *data)
695 {
696 struct lu_fid fid = {0};
697
698 logid_to_fid(&llh->lgh_id, &fid);
699
700 CDEBUG(D_OTHER, "record type %#x at index %d in log "DFID"\n",
701 rec->lrh_type, rec->lrh_index, PFID(&fid));
702
703 plain_counter++;
704 return 0;
705 }
706
707 static int test_7_cancel_cb(const struct lu_env *env, struct llog_handle *llh,
708 struct llog_rec_hdr *rec, void *data)
709 {
710 plain_counter++;
711 /* test LLOG_DEL_RECORD is working */
712 return LLOG_DEL_RECORD;
713 }
714
715 static int llog_test_7_sub(const struct lu_env *env, struct llog_ctxt *ctxt)
716 {
717 struct llog_handle *llh;
718 int rc = 0, i, process_count;
719 int num_recs = 0;
720
721 rc = llog_open_create(env, ctxt, &llh, NULL, NULL);
722 if (rc) {
723 CERROR("7_sub: create log failed\n");
724 return rc;
725 }
726
727 rc = llog_init_handle(env, llh,
728 LLOG_F_IS_PLAIN | LLOG_F_ZAP_WHEN_EMPTY,
729 &uuid);
730 if (rc) {
731 CERROR("7_sub: can't init llog handle: %d\n", rc);
732 GOTO(out_close, rc);
733 }
734 for (i = 0; i < LLOG_BITMAP_SIZE(llh->lgh_hdr); i++) {
735 rc = llog_write(env, llh, &llog_records.lrh, NULL, 0,
736 NULL, -1);
737 if (rc == -ENOSPC) {
738 break;
739 } else if (rc < 0) {
740 CERROR("7_sub: write recs failed at #%d: %d\n",
741 i + 1, rc);
742 GOTO(out_close, rc);
743 }
744 num_recs++;
745 }
746 if (rc != -ENOSPC) {
747 CWARN("7_sub: write record more than BITMAP size!\n");
748 GOTO(out_close, rc = -EINVAL);
749 }
750
751 rc = verify_handle("7_sub", llh, num_recs + 1);
752 if (rc) {
753 CERROR("7_sub: verify handle failed: %d\n", rc);
754 GOTO(out_close, rc);
755 }
756 if (num_recs < LLOG_BITMAP_SIZE(llh->lgh_hdr) - 1)
757 CWARN("7_sub: records are not aligned, written %d from %u\n",
758 num_recs, LLOG_BITMAP_SIZE(llh->lgh_hdr) - 1);
759
760 plain_counter = 0;
761 rc = llog_process(env, llh, test_7_print_cb, "test 7", NULL);
762 if (rc) {
763 CERROR("7_sub: llog process failed: %d\n", rc);
764 GOTO(out_close, rc);
765 }
766 process_count = plain_counter;
767 if (process_count != num_recs) {
768 CERROR("7_sub: processed %d records from %d total\n",
769 process_count, num_recs);
770 GOTO(out_close, rc = -EINVAL);
771 }
772
773 plain_counter = 0;
774 rc = llog_reverse_process(env, llh, test_7_cancel_cb, "test 7", NULL);
775 if (rc) {
776 CERROR("7_sub: reverse llog process failed: %d\n", rc);
777 GOTO(out_close, rc);
778 }
779 if (process_count != plain_counter) {
780 CERROR("7_sub: Reverse/direct processing found different"
781 "number of records: %d/%d\n",
782 plain_counter, process_count);
783 GOTO(out_close, rc = -EINVAL);
784 }
785 if (llog_exist(llh)) {
786 CERROR("7_sub: llog exists but should be zapped\n");
787 GOTO(out_close, rc = -EEXIST);
788 }
789
790 rc = verify_handle("7_sub", llh, 1);
791 out_close:
792 if (rc)
793 llog_destroy(env, llh);
794 llog_close(env, llh);
795 return rc;
796 }
797
798 /* Test all llog records writing and processing */
799 static int llog_test_7(const struct lu_env *env, struct obd_device *obd)
800 {
801 struct llog_ctxt *ctxt;
802 int rc;
803
804 ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
805
806 CWARN("7a: test llog_logid_rec\n");
807 llog_records.llr.lid_hdr.lrh_len = sizeof(llog_records.llr);
808 llog_records.llr.lid_tail.lrt_len = sizeof(llog_records.llr);
809 llog_records.llr.lid_hdr.lrh_type = LLOG_LOGID_MAGIC;
810
811 rc = llog_test_7_sub(env, ctxt);
812 if (rc) {
813 CERROR("7a: llog_logid_rec test failed\n");
814 GOTO(out, rc);
815 }
816
817 CWARN("7b: test llog_unlink64_rec\n");
818 llog_records.lur.lur_hdr.lrh_len = sizeof(llog_records.lur);
819 llog_records.lur.lur_tail.lrt_len = sizeof(llog_records.lur);
820 llog_records.lur.lur_hdr.lrh_type = MDS_UNLINK64_REC;
821
822 rc = llog_test_7_sub(env, ctxt);
823 if (rc) {
824 CERROR("7b: llog_unlink_rec test failed\n");
825 GOTO(out, rc);
826 }
827
828 CWARN("7c: test llog_setattr64_rec\n");
829 llog_records.lsr64.lsr_hdr.lrh_len = sizeof(llog_records.lsr64);
830 llog_records.lsr64.lsr_tail.lrt_len = sizeof(llog_records.lsr64);
831 llog_records.lsr64.lsr_hdr.lrh_type = MDS_SETATTR64_REC;
832
833 rc = llog_test_7_sub(env, ctxt);
834 if (rc) {
835 CERROR("7c: llog_setattr64_rec test failed\n");
836 GOTO(out, rc);
837 }
838
839 CWARN("7d: test llog_size_change_rec\n");
840 llog_records.lscr.lsc_hdr.lrh_len = sizeof(llog_records.lscr);
841 llog_records.lscr.lsc_tail.lrt_len = sizeof(llog_records.lscr);
842 llog_records.lscr.lsc_hdr.lrh_type = OST_SZ_REC;
843
844 rc = llog_test_7_sub(env, ctxt);
845 if (rc) {
846 CERROR("7d: llog_size_change_rec test failed\n");
847 GOTO(out, rc);
848 }
849
850 CWARN("7e: test llog_changelog_rec\n");
851 llog_records.lcr.cr_hdr.lrh_len = sizeof(llog_records.lcr);
852 llog_records.lcr.cr_tail.lrt_len = sizeof(llog_records.lcr);
853 llog_records.lcr.cr_hdr.lrh_type = CHANGELOG_REC;
854
855 rc = llog_test_7_sub(env, ctxt);
856 if (rc) {
857 CERROR("7e: llog_changelog_rec test failed\n");
858 GOTO(out, rc);
859 }
860
861 CWARN("7f: test llog_changelog_user_rec\n");
862 llog_records.lcur.cur_hdr.lrh_len = sizeof(llog_records.lcur);
863 llog_records.lcur.cur_tail.lrt_len = sizeof(llog_records.lcur);
864 llog_records.lcur.cur_hdr.lrh_type = CHANGELOG_USER_REC;
865
866 rc = llog_test_7_sub(env, ctxt);
867 if (rc) {
868 CERROR("7f: llog_changelog_user_rec test failed\n");
869 GOTO(out, rc);
870 }
871
872 CWARN("7g: test llog_gen_rec\n");
873 llog_records.lgr.lgr_hdr.lrh_len = sizeof(llog_records.lgr);
874 llog_records.lgr.lgr_tail.lrt_len = sizeof(llog_records.lgr);
875 llog_records.lgr.lgr_hdr.lrh_type = LLOG_GEN_REC;
876
877 rc = llog_test_7_sub(env, ctxt);
878 if (rc) {
879 CERROR("7g: llog_size_change_rec test failed\n");
880 GOTO(out, rc);
881 }
882 out:
883 llog_ctxt_put(ctxt);
884 return rc;
885 }
886
887 /* -------------------------------------------------------------------------
888 * Tests above, boring obd functions below
889 * ------------------------------------------------------------------------- */
890 static int llog_run_tests(const struct lu_env *env, struct obd_device *obd)
891 {
892 struct llog_handle *llh = NULL;
893 struct llog_ctxt *ctxt;
894 int rc, err;
895 char name[10];
896
897 ctxt = llog_get_context(obd, LLOG_TEST_ORIG_CTXT);
898 LASSERT(ctxt);
899
900 sprintf(name, "%x", llog_test_rand);
901
902 rc = llog_test_1(env, obd, name);
903 if (rc)
904 GOTO(cleanup_ctxt, rc);
905
906 rc = llog_test_2(env, obd, name, &llh);
907 if (rc)
908 GOTO(cleanup_ctxt, rc);
909
910 rc = llog_test_3(env, obd, llh);
911 if (rc)
912 GOTO(cleanup, rc);
913
914 rc = llog_test_4(env, obd);
915 if (rc)
916 GOTO(cleanup, rc);
917
918 rc = llog_test_5(env, obd);
919 if (rc)
920 GOTO(cleanup, rc);
921
922 rc = llog_test_6(env, obd, name);
923 if (rc)
924 GOTO(cleanup, rc);
925
926 rc = llog_test_7(env, obd);
927 if (rc)
928 GOTO(cleanup, rc);
929
930 cleanup:
931 err = llog_destroy(env, llh);
932 if (err)
933 CERROR("cleanup: llog_destroy failed: %d\n", err);
934 llog_close(env, llh);
935 if (rc == 0)
936 rc = err;
937 cleanup_ctxt:
938 llog_ctxt_put(ctxt);
939 return rc;
940 }
941
942 #ifdef LPROCFS
943 static struct lprocfs_vars lprocfs_llog_test_obd_vars[] = { {0} };
944 static struct lprocfs_vars lprocfs_llog_test_module_vars[] = { {0} };
945 static void lprocfs_llog_test_init_vars(struct lprocfs_static_vars *lvars)
946 {
947 lvars->module_vars = lprocfs_llog_test_module_vars;
948 lvars->obd_vars = lprocfs_llog_test_obd_vars;
949 }
950 #endif
951
952 static int llog_test_cleanup(struct obd_device *obd)
953 {
954 struct obd_device *tgt;
955 struct lu_env env;
956 int rc;
957
958 rc = lu_env_init(&env, LCT_LOCAL | LCT_MG_THREAD);
959 if (rc)
960 return rc;
961
962 tgt = obd->obd_lvfs_ctxt.dt->dd_lu_dev.ld_obd;
963 rc = llog_cleanup(&env, llog_get_context(tgt, LLOG_TEST_ORIG_CTXT));
964 if (rc)
965 CERROR("failed to llog_test_llog_finish: %d\n", rc);
966 lu_env_fini(&env);
967 return rc;
968 }
969
970 static int llog_test_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
971 {
972 struct obd_device *tgt;
973 struct llog_ctxt *ctxt;
974 struct dt_object *o;
975 struct lu_env env;
976 struct lu_context test_session;
977 int rc;
978
979 if (lcfg->lcfg_bufcount < 2) {
980 CERROR("requires a TARGET OBD name\n");
981 return -EINVAL;
982 }
983
984 if (lcfg->lcfg_buflens[1] < 1) {
985 CERROR("requires a TARGET OBD name\n");
986 return -EINVAL;
987 }
988
989 /* disk obd */
990 tgt = class_name2obd(lustre_cfg_string(lcfg, 1));
991 if (!tgt || !tgt->obd_attached || !tgt->obd_set_up) {
992 CERROR("target device not attached or not set up (%s)\n",
993 lustre_cfg_string(lcfg, 1));
994 return -EINVAL;
995 }
996
997 rc = lu_env_init(&env, LCT_LOCAL | LCT_MG_THREAD);
998 if (rc)
999 return rc;
1000
1001 rc = lu_context_init(&test_session, LCT_SESSION);
1002 if (rc)
1003 GOTO(cleanup_env, rc);
1004 test_session.lc_thread = (struct ptlrpc_thread *)current;
1005 lu_context_enter(&test_session);
1006 env.le_ses = &test_session;
1007
1008 CWARN("Setup llog-test device over %s device\n",
1009 lustre_cfg_string(lcfg, 1));
1010
1011 OBD_SET_CTXT_MAGIC(&obd->obd_lvfs_ctxt);
1012 obd->obd_lvfs_ctxt.dt = lu2dt_dev(tgt->obd_lu_dev);
1013
1014 rc = llog_setup(&env, tgt, &tgt->obd_olg, LLOG_TEST_ORIG_CTXT, tgt,
1015 &llog_osd_ops);
1016 if (rc)
1017 GOTO(cleanup_session, rc);
1018
1019 /* use MGS llog dir for tests */
1020 ctxt = llog_get_context(tgt, LLOG_CONFIG_ORIG_CTXT);
1021 LASSERT(ctxt);
1022 o = ctxt->loc_dir;
1023 llog_ctxt_put(ctxt);
1024
1025 ctxt = llog_get_context(tgt, LLOG_TEST_ORIG_CTXT);
1026 LASSERT(ctxt);
1027 ctxt->loc_dir = o;
1028 llog_ctxt_put(ctxt);
1029
1030 llog_test_rand = cfs_rand();
1031
1032 rc = llog_run_tests(&env, tgt);
1033 if (rc)
1034 llog_test_cleanup(obd);
1035 cleanup_session:
1036 lu_context_exit(&test_session);
1037 lu_context_fini(&test_session);
1038 cleanup_env:
1039 lu_env_fini(&env);
1040 return rc;
1041 }
1042
1043 static struct obd_ops llog_obd_ops = {
1044 .o_owner = THIS_MODULE,
1045 .o_setup = llog_test_setup,
1046 .o_cleanup = llog_test_cleanup,
1047 };
1048
1049 static int __init llog_test_init(void)
1050 {
1051 struct lprocfs_static_vars lvars;
1052
1053 lprocfs_llog_test_init_vars(&lvars);
1054 return class_register_type(&llog_obd_ops, NULL,
1055 lvars.module_vars, "llog_test", NULL);
1056 }
1057
1058 static void __exit llog_test_exit(void)
1059 {
1060 class_unregister_type("llog_test");
1061 }
1062
1063 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
1064 MODULE_DESCRIPTION("llog test module");
1065 MODULE_LICENSE("GPL");
1066
1067 module_init(llog_test_init);
1068 module_exit(llog_test_exit);
Linux kernel - Deliverables
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