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) 1999, 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_CLASS
38 # include <linux/atomic.h>
39
40 #include "../include/obd_support.h"
41 #include "../include/obd_class.h"
42 #include "../../include/linux/lnet/lnetctl.h"
43 #include "../include/lustre_debug.h"
44 #include "../include/lprocfs_status.h"
45 #include "../include/lustre/lustre_build_version.h"
46 #include <linux/list.h>
47 #include "../include/cl_object.h"
48 #include "llog_internal.h"
49
50
51 struct obd_device *obd_devs[MAX_OBD_DEVICES];
52 EXPORT_SYMBOL(obd_devs);
53 struct list_head obd_types;
54 DEFINE_RWLOCK(obd_dev_lock);
55
56 __u64 obd_max_pages = 0;
57 EXPORT_SYMBOL(obd_max_pages);
58 __u64 obd_max_alloc = 0;
59 EXPORT_SYMBOL(obd_max_alloc);
60 __u64 obd_alloc;
61 EXPORT_SYMBOL(obd_alloc);
62 __u64 obd_pages;
63 EXPORT_SYMBOL(obd_pages);
64 static DEFINE_SPINLOCK(obd_updatemax_lock);
65
66 /* The following are visible and mutable through /proc/sys/lustre/. */
67 unsigned int obd_alloc_fail_rate = 0;
68 EXPORT_SYMBOL(obd_alloc_fail_rate);
69 unsigned int obd_debug_peer_on_timeout;
70 EXPORT_SYMBOL(obd_debug_peer_on_timeout);
71 unsigned int obd_dump_on_timeout;
72 EXPORT_SYMBOL(obd_dump_on_timeout);
73 unsigned int obd_dump_on_eviction;
74 EXPORT_SYMBOL(obd_dump_on_eviction);
75 unsigned int obd_max_dirty_pages = 256;
76 EXPORT_SYMBOL(obd_max_dirty_pages);
77 atomic_t obd_dirty_pages;
78 EXPORT_SYMBOL(obd_dirty_pages);
79 unsigned int obd_timeout = OBD_TIMEOUT_DEFAULT; /* seconds */
80 EXPORT_SYMBOL(obd_timeout);
81 unsigned int ldlm_timeout = LDLM_TIMEOUT_DEFAULT; /* seconds */
82 EXPORT_SYMBOL(ldlm_timeout);
83 unsigned int obd_timeout_set;
84 EXPORT_SYMBOL(obd_timeout_set);
85 unsigned int ldlm_timeout_set;
86 EXPORT_SYMBOL(ldlm_timeout_set);
87 /* Adaptive timeout defs here instead of ptlrpc module for /proc/sys/ access */
88 unsigned int at_min = 0;
89 EXPORT_SYMBOL(at_min);
90 unsigned int at_max = 600;
91 EXPORT_SYMBOL(at_max);
92 unsigned int at_history = 600;
93 EXPORT_SYMBOL(at_history);
94 int at_early_margin = 5;
95 EXPORT_SYMBOL(at_early_margin);
96 int at_extra = 30;
97 EXPORT_SYMBOL(at_extra);
98
99 atomic_t obd_dirty_transit_pages;
100 EXPORT_SYMBOL(obd_dirty_transit_pages);
101
102 char obd_jobid_var[JOBSTATS_JOBID_VAR_MAX_LEN + 1] = JOBSTATS_DISABLE;
103 EXPORT_SYMBOL(obd_jobid_var);
104
105 char obd_jobid_node[JOBSTATS_JOBID_SIZE + 1];
106
107 /* Get jobid of current process from stored variable or calculate
108 * it from pid and user_id.
109 *
110 * Historically this was also done by reading the environment variable
111 * stored in between the "env_start" & "env_end" of task struct.
112 * This is now deprecated.
113 */
lustre_get_jobid(char * jobid)114 int lustre_get_jobid(char *jobid)
115 {
116 memset(jobid, 0, JOBSTATS_JOBID_SIZE);
117 /* Jobstats isn't enabled */
118 if (strcmp(obd_jobid_var, JOBSTATS_DISABLE) == 0)
119 return 0;
120
121 /* Use process name + fsuid as jobid */
122 if (strcmp(obd_jobid_var, JOBSTATS_PROCNAME_UID) == 0) {
123 snprintf(jobid, JOBSTATS_JOBID_SIZE, "%s.%u",
124 current_comm(),
125 from_kuid(&init_user_ns, current_fsuid()));
126 return 0;
127 }
128
129 /* Whole node dedicated to single job */
130 if (strcmp(obd_jobid_var, JOBSTATS_NODELOCAL) == 0) {
131 strcpy(jobid, obd_jobid_node);
132 return 0;
133 }
134
135 return -ENOENT;
136 }
137 EXPORT_SYMBOL(lustre_get_jobid);
138
obd_alloc_fail(const void * ptr,const char * name,const char * type,size_t size,const char * file,int line)139 int obd_alloc_fail(const void *ptr, const char *name, const char *type,
140 size_t size, const char *file, int line)
141 {
142 if (ptr == NULL ||
143 (cfs_rand() & OBD_ALLOC_FAIL_MASK) < obd_alloc_fail_rate) {
144 CERROR("%s%salloc of %s (%llu bytes) failed at %s:%d\n",
145 ptr ? "force " :"", type, name, (__u64)size, file,
146 line);
147 CERROR("%llu total bytes and %llu total pages (%llu bytes) allocated by Lustre, %d total bytes by LNET\n",
148 obd_memory_sum(),
149 obd_pages_sum() << PAGE_CACHE_SHIFT,
150 obd_pages_sum(),
151 atomic_read(&libcfs_kmemory));
152 return 1;
153 }
154 return 0;
155 }
156 EXPORT_SYMBOL(obd_alloc_fail);
157
obd_data2conn(struct lustre_handle * conn,struct obd_ioctl_data * data)158 static inline void obd_data2conn(struct lustre_handle *conn,
159 struct obd_ioctl_data *data)
160 {
161 memset(conn, 0, sizeof(*conn));
162 conn->cookie = data->ioc_cookie;
163 }
164
obd_conn2data(struct obd_ioctl_data * data,struct lustre_handle * conn)165 static inline void obd_conn2data(struct obd_ioctl_data *data,
166 struct lustre_handle *conn)
167 {
168 data->ioc_cookie = conn->cookie;
169 }
170
class_resolve_dev_name(__u32 len,const char * name)171 int class_resolve_dev_name(__u32 len, const char *name)
172 {
173 int rc;
174 int dev;
175
176 if (!len || !name) {
177 CERROR("No name passed,!\n");
178 rc = -EINVAL;
179 goto out;
180 }
181 if (name[len - 1] != 0) {
182 CERROR("Name not nul terminated!\n");
183 rc = -EINVAL;
184 goto out;
185 }
186
187 CDEBUG(D_IOCTL, "device name %s\n", name);
188 dev = class_name2dev(name);
189 if (dev == -1) {
190 CDEBUG(D_IOCTL, "No device for name %s!\n", name);
191 rc = -EINVAL;
192 goto out;
193 }
194
195 CDEBUG(D_IOCTL, "device name %s, dev %d\n", name, dev);
196 rc = dev;
197
198 out:
199 return rc;
200 }
201
class_handle_ioctl(unsigned int cmd,unsigned long arg)202 int class_handle_ioctl(unsigned int cmd, unsigned long arg)
203 {
204 char *buf = NULL;
205 struct obd_ioctl_data *data;
206 struct libcfs_debug_ioctl_data *debug_data;
207 struct obd_device *obd = NULL;
208 int err = 0, len = 0;
209
210 /* only for debugging */
211 if (cmd == LIBCFS_IOC_DEBUG_MASK) {
212 debug_data = (struct libcfs_debug_ioctl_data *)arg;
213 libcfs_subsystem_debug = debug_data->subs;
214 libcfs_debug = debug_data->debug;
215 return 0;
216 }
217
218 CDEBUG(D_IOCTL, "cmd = %x\n", cmd);
219 if (obd_ioctl_getdata(&buf, &len, (void *)arg)) {
220 CERROR("OBD ioctl: data error\n");
221 return -EINVAL;
222 }
223 data = (struct obd_ioctl_data *)buf;
224
225 switch (cmd) {
226 case OBD_IOC_PROCESS_CFG: {
227 struct lustre_cfg *lcfg;
228
229 if (!data->ioc_plen1 || !data->ioc_pbuf1) {
230 CERROR("No config buffer passed!\n");
231 err = -EINVAL;
232 goto out;
233 }
234 OBD_ALLOC(lcfg, data->ioc_plen1);
235 if (lcfg == NULL) {
236 err = -ENOMEM;
237 goto out;
238 }
239 err = copy_from_user(lcfg, data->ioc_pbuf1,
240 data->ioc_plen1);
241 if (!err)
242 err = lustre_cfg_sanity_check(lcfg, data->ioc_plen1);
243 if (!err)
244 err = class_process_config(lcfg);
245
246 OBD_FREE(lcfg, data->ioc_plen1);
247 goto out;
248 }
249
250 case OBD_GET_VERSION:
251 if (!data->ioc_inlbuf1) {
252 CERROR("No buffer passed in ioctl\n");
253 err = -EINVAL;
254 goto out;
255 }
256
257 if (strlen(BUILD_VERSION) + 1 > data->ioc_inllen1) {
258 CERROR("ioctl buffer too small to hold version\n");
259 err = -EINVAL;
260 goto out;
261 }
262
263 memcpy(data->ioc_bulk, BUILD_VERSION,
264 strlen(BUILD_VERSION) + 1);
265
266 err = obd_ioctl_popdata((void *)arg, data, len);
267 if (err)
268 err = -EFAULT;
269 goto out;
270
271 case OBD_IOC_NAME2DEV: {
272 /* Resolve a device name. This does not change the
273 * currently selected device.
274 */
275 int dev;
276
277 dev = class_resolve_dev_name(data->ioc_inllen1,
278 data->ioc_inlbuf1);
279 data->ioc_dev = dev;
280 if (dev < 0) {
281 err = -EINVAL;
282 goto out;
283 }
284
285 err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
286 if (err)
287 err = -EFAULT;
288 goto out;
289 }
290
291 case OBD_IOC_UUID2DEV: {
292 /* Resolve a device uuid. This does not change the
293 * currently selected device.
294 */
295 int dev;
296 struct obd_uuid uuid;
297
298 if (!data->ioc_inllen1 || !data->ioc_inlbuf1) {
299 CERROR("No UUID passed!\n");
300 err = -EINVAL;
301 goto out;
302 }
303 if (data->ioc_inlbuf1[data->ioc_inllen1 - 1] != 0) {
304 CERROR("UUID not NUL terminated!\n");
305 err = -EINVAL;
306 goto out;
307 }
308
309 CDEBUG(D_IOCTL, "device name %s\n", data->ioc_inlbuf1);
310 obd_str2uuid(&uuid, data->ioc_inlbuf1);
311 dev = class_uuid2dev(&uuid);
312 data->ioc_dev = dev;
313 if (dev == -1) {
314 CDEBUG(D_IOCTL, "No device for UUID %s!\n",
315 data->ioc_inlbuf1);
316 err = -EINVAL;
317 goto out;
318 }
319
320 CDEBUG(D_IOCTL, "device name %s, dev %d\n", data->ioc_inlbuf1,
321 dev);
322 err = obd_ioctl_popdata((void *)arg, data, sizeof(*data));
323 if (err)
324 err = -EFAULT;
325 goto out;
326 }
327
328 case OBD_IOC_CLOSE_UUID: {
329 CDEBUG(D_IOCTL, "closing all connections to uuid %s (NOOP)\n",
330 data->ioc_inlbuf1);
331 err = 0;
332 goto out;
333 }
334
335 case OBD_IOC_GETDEVICE: {
336 int index = data->ioc_count;
337 char *status, *str;
338
339 if (!data->ioc_inlbuf1) {
340 CERROR("No buffer passed in ioctl\n");
341 err = -EINVAL;
342 goto out;
343 }
344 if (data->ioc_inllen1 < 128) {
345 CERROR("ioctl buffer too small to hold version\n");
346 err = -EINVAL;
347 goto out;
348 }
349
350 obd = class_num2obd(index);
351 if (!obd) {
352 err = -ENOENT;
353 goto out;
354 }
355
356 if (obd->obd_stopping)
357 status = "ST";
358 else if (obd->obd_set_up)
359 status = "UP";
360 else if (obd->obd_attached)
361 status = "AT";
362 else
363 status = "--";
364 str = (char *)data->ioc_bulk;
365 snprintf(str, len - sizeof(*data), "%3d %s %s %s %s %d",
366 (int)index, status, obd->obd_type->typ_name,
367 obd->obd_name, obd->obd_uuid.uuid,
368 atomic_read(&obd->obd_refcount));
369 err = obd_ioctl_popdata((void *)arg, data, len);
370
371 err = 0;
372 goto out;
373 }
374
375 }
376
377 if (data->ioc_dev == OBD_DEV_BY_DEVNAME) {
378 if (data->ioc_inllen4 <= 0 || data->ioc_inlbuf4 == NULL) {
379 err = -EINVAL;
380 goto out;
381 }
382 if (strnlen(data->ioc_inlbuf4, MAX_OBD_NAME) >= MAX_OBD_NAME) {
383 err = -EINVAL;
384 goto out;
385 }
386 obd = class_name2obd(data->ioc_inlbuf4);
387 } else if (data->ioc_dev < class_devno_max()) {
388 obd = class_num2obd(data->ioc_dev);
389 } else {
390 CERROR("OBD ioctl: No device\n");
391 err = -EINVAL;
392 goto out;
393 }
394
395 if (obd == NULL) {
396 CERROR("OBD ioctl : No Device %d\n", data->ioc_dev);
397 err = -EINVAL;
398 goto out;
399 }
400 LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
401
402 if (!obd->obd_set_up || obd->obd_stopping) {
403 CERROR("OBD ioctl: device not setup %d\n", data->ioc_dev);
404 err = -EINVAL;
405 goto out;
406 }
407
408 switch (cmd) {
409 case OBD_IOC_NO_TRANSNO: {
410 if (!obd->obd_attached) {
411 CERROR("Device %d not attached\n", obd->obd_minor);
412 err = -ENODEV;
413 goto out;
414 }
415 CDEBUG(D_HA, "%s: disabling committed-transno notification\n",
416 obd->obd_name);
417 obd->obd_no_transno = 1;
418 err = 0;
419 goto out;
420 }
421
422 default: {
423 err = obd_iocontrol(cmd, obd->obd_self_export, len, data, NULL);
424 if (err)
425 goto out;
426
427 err = obd_ioctl_popdata((void *)arg, data, len);
428 if (err)
429 err = -EFAULT;
430 goto out;
431 }
432 }
433
434 out:
435 if (buf)
436 obd_ioctl_freedata(buf, len);
437 return err;
438 } /* class_handle_ioctl */
439
440 #define OBD_INIT_CHECK
obd_init_checks(void)441 int obd_init_checks(void)
442 {
443 __u64 u64val, div64val;
444 char buf[64];
445 int len, ret = 0;
446
447 CDEBUG(D_INFO, "LPU64=%s, LPD64=%s, LPX64=%s\n", "%llu", "%lld", "%#llx");
448
449 CDEBUG(D_INFO, "OBD_OBJECT_EOF = %#llx\n", (__u64)OBD_OBJECT_EOF);
450
451 u64val = OBD_OBJECT_EOF;
452 CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = %#llx\n", u64val);
453 if (u64val != OBD_OBJECT_EOF) {
454 CERROR("__u64 %#llx(%d) != 0xffffffffffffffff\n",
455 u64val, (int)sizeof(u64val));
456 ret = -EINVAL;
457 }
458 len = snprintf(buf, sizeof(buf), "%#llx", u64val);
459 if (len != 18) {
460 CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
461 ret = -EINVAL;
462 }
463
464 div64val = OBD_OBJECT_EOF;
465 CDEBUG(D_INFO, "u64val OBD_OBJECT_EOF = %#llx\n", u64val);
466 if (u64val != OBD_OBJECT_EOF) {
467 CERROR("__u64 %#llx(%d) != 0xffffffffffffffff\n",
468 u64val, (int)sizeof(u64val));
469 ret = -EOVERFLOW;
470 }
471 if (u64val >> 8 != OBD_OBJECT_EOF >> 8) {
472 CERROR("__u64 %#llx(%d) != 0xffffffffffffffff\n",
473 u64val, (int)sizeof(u64val));
474 return -EOVERFLOW;
475 }
476 if (do_div(div64val, 256) != (u64val & 255)) {
477 CERROR("do_div(%#llx,256) != %llu\n", u64val, u64val &255);
478 return -EOVERFLOW;
479 }
480 if (u64val >> 8 != div64val) {
481 CERROR("do_div(%#llx,256) %llu != %llu\n",
482 u64val, div64val, u64val >> 8);
483 return -EOVERFLOW;
484 }
485 len = snprintf(buf, sizeof(buf), "%#llx", u64val);
486 if (len != 18) {
487 CWARN("LPX64 wrong length! strlen(%s)=%d != 18\n", buf, len);
488 ret = -EINVAL;
489 }
490 len = snprintf(buf, sizeof(buf), "%llu", u64val);
491 if (len != 20) {
492 CWARN("LPU64 wrong length! strlen(%s)=%d != 20\n", buf, len);
493 ret = -EINVAL;
494 }
495 len = snprintf(buf, sizeof(buf), "%lld", u64val);
496 if (len != 2) {
497 CWARN("LPD64 wrong length! strlen(%s)=%d != 2\n", buf, len);
498 ret = -EINVAL;
499 }
500 if ((u64val & ~CFS_PAGE_MASK) >= PAGE_CACHE_SIZE) {
501 CWARN("mask failed: u64val %llu >= %llu\n", u64val,
502 (__u64)PAGE_CACHE_SIZE);
503 ret = -EINVAL;
504 }
505
506 return ret;
507 }
508
509 #if defined (CONFIG_PROC_FS)
510 extern int class_procfs_init(void);
511 extern int class_procfs_clean(void);
512 #else
class_procfs_init(void)513 static inline int class_procfs_init(void)
514 { return 0; }
class_procfs_clean(void)515 static inline int class_procfs_clean(void)
516 { return 0; }
517 #endif
518
init_obdclass(void)519 static int __init init_obdclass(void)
520 {
521 int i, err;
522 int lustre_register_fs(void);
523
524 for (i = CAPA_SITE_CLIENT; i < CAPA_SITE_MAX; i++)
525 INIT_LIST_HEAD(&capa_list[i]);
526
527 LCONSOLE_INFO("Lustre: Build Version: "BUILD_VERSION"\n");
528
529 spin_lock_init(&obd_types_lock);
530 obd_zombie_impexp_init();
531
532 if (IS_ENABLED(CONFIG_PROC_FS)) {
533 obd_memory = lprocfs_alloc_stats(OBD_STATS_NUM,
534 LPROCFS_STATS_FLAG_NONE |
535 LPROCFS_STATS_FLAG_IRQ_SAFE);
536
537 if (obd_memory == NULL) {
538 CERROR("kmalloc of 'obd_memory' failed\n");
539 return -ENOMEM;
540 }
541
542 lprocfs_counter_init(obd_memory, OBD_MEMORY_STAT,
543 LPROCFS_CNTR_AVGMINMAX,
544 "memused", "bytes");
545 lprocfs_counter_init(obd_memory, OBD_MEMORY_PAGES_STAT,
546 LPROCFS_CNTR_AVGMINMAX,
547 "pagesused", "pages");
548 }
549
550 err = obd_init_checks();
551 if (err == -EOVERFLOW)
552 return err;
553
554 class_init_uuidlist();
555 err = class_handle_init();
556 if (err)
557 return err;
558
559 INIT_LIST_HEAD(&obd_types);
560
561 err = misc_register(&obd_psdev);
562 if (err) {
563 CERROR("cannot register %d err %d\n", OBD_DEV_MINOR, err);
564 return err;
565 }
566
567 /* This struct is already zeroed for us (static global) */
568 for (i = 0; i < class_devno_max(); i++)
569 obd_devs[i] = NULL;
570
571 /* Default the dirty page cache cap to 1/2 of system memory.
572 * For clients with less memory, a larger fraction is needed
573 * for other purposes (mostly for BGL). */
574 if (totalram_pages <= 512 << (20 - PAGE_CACHE_SHIFT))
575 obd_max_dirty_pages = totalram_pages / 4;
576 else
577 obd_max_dirty_pages = totalram_pages / 2;
578
579 err = obd_init_caches();
580 if (err)
581 return err;
582
583 obd_sysctl_init();
584
585 err = class_procfs_init();
586 if (err)
587 return err;
588
589 err = lu_global_init();
590 if (err)
591 return err;
592
593 err = cl_global_init();
594 if (err != 0)
595 return err;
596
597
598 err = llog_info_init();
599 if (err)
600 return err;
601
602 err = lustre_register_fs();
603
604 return err;
605 }
606
obd_update_maxusage(void)607 void obd_update_maxusage(void)
608 {
609 __u64 max1, max2;
610
611 max1 = obd_pages_sum();
612 max2 = obd_memory_sum();
613
614 spin_lock(&obd_updatemax_lock);
615 if (max1 > obd_max_pages)
616 obd_max_pages = max1;
617 if (max2 > obd_max_alloc)
618 obd_max_alloc = max2;
619 spin_unlock(&obd_updatemax_lock);
620 }
621 EXPORT_SYMBOL(obd_update_maxusage);
622
623 #if defined (CONFIG_PROC_FS)
obd_memory_max(void)624 __u64 obd_memory_max(void)
625 {
626 __u64 ret;
627
628 spin_lock(&obd_updatemax_lock);
629 ret = obd_max_alloc;
630 spin_unlock(&obd_updatemax_lock);
631
632 return ret;
633 }
634 EXPORT_SYMBOL(obd_memory_max);
635
obd_pages_max(void)636 __u64 obd_pages_max(void)
637 {
638 __u64 ret;
639
640 spin_lock(&obd_updatemax_lock);
641 ret = obd_max_pages;
642 spin_unlock(&obd_updatemax_lock);
643
644 return ret;
645 }
646 EXPORT_SYMBOL(obd_pages_max);
647 #endif
648
649 /* liblustre doesn't call cleanup_obdclass, apparently. we carry on in this
650 * ifdef to the end of the file to cover module and versioning goo.*/
cleanup_obdclass(void)651 static void cleanup_obdclass(void)
652 {
653 int i;
654 int lustre_unregister_fs(void);
655 __u64 memory_leaked, pages_leaked;
656 __u64 memory_max, pages_max;
657
658 lustre_unregister_fs();
659
660 misc_deregister(&obd_psdev);
661 for (i = 0; i < class_devno_max(); i++) {
662 struct obd_device *obd = class_num2obd(i);
663 if (obd && obd->obd_set_up &&
664 OBT(obd) && OBP(obd, detach)) {
665 /* XXX should this call generic detach otherwise? */
666 LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
667 OBP(obd, detach)(obd);
668 }
669 }
670 llog_info_fini();
671 cl_global_fini();
672 lu_global_fini();
673
674 obd_cleanup_caches();
675 obd_sysctl_clean();
676
677 class_procfs_clean();
678
679 class_handle_cleanup();
680 class_exit_uuidlist();
681 obd_zombie_impexp_stop();
682
683 memory_leaked = obd_memory_sum();
684 pages_leaked = obd_pages_sum();
685
686 memory_max = obd_memory_max();
687 pages_max = obd_pages_max();
688
689 lprocfs_free_stats(&obd_memory);
690 CDEBUG((memory_leaked) ? D_ERROR : D_INFO,
691 "obd_memory max: %llu, leaked: %llu\n",
692 memory_max, memory_leaked);
693 CDEBUG((pages_leaked) ? D_ERROR : D_INFO,
694 "obd_memory_pages max: %llu, leaked: %llu\n",
695 pages_max, pages_leaked);
696 }
697
698 MODULE_AUTHOR("Sun Microsystems, Inc. <http://www.lustre.org/>");
699 MODULE_DESCRIPTION("Lustre Class Driver Build Version: " BUILD_VERSION);
700 MODULE_LICENSE("GPL");
701 MODULE_VERSION(LUSTRE_VERSION_STRING);
702
703 module_init(init_obdclass);
704 module_exit(cleanup_obdclass);
705