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UBUNTU: [Config] updateconfigs after removing powerpc builds
[mirror_ubuntu-zesty-kernel.git] / fs / orangefs / orangefs-sysfs.c
1 /*
2 * Documentation/ABI/stable/orangefs-sysfs:
3 *
4 * What: /sys/fs/orangefs/perf_counter_reset
5 * Date: June 2015
6 * Contact: Mike Marshall <hubcap@omnibond.com>
7 * Description:
8 * echo a 0 or a 1 into perf_counter_reset to
9 * reset all the counters in
10 * /sys/fs/orangefs/perf_counters
11 * except ones with PINT_PERF_PRESERVE set.
12 *
13 *
14 * What: /sys/fs/orangefs/perf_counters/...
15 * Date: Jun 2015
16 * Contact: Mike Marshall <hubcap@omnibond.com>
17 * Description:
18 * Counters and settings for various caches.
19 * Read only.
20 *
21 *
22 * What: /sys/fs/orangefs/perf_time_interval_secs
23 * Date: Jun 2015
24 * Contact: Mike Marshall <hubcap@omnibond.com>
25 * Description:
26 * Length of perf counter intervals in
27 * seconds.
28 *
29 *
30 * What: /sys/fs/orangefs/perf_history_size
31 * Date: Jun 2015
32 * Contact: Mike Marshall <hubcap@omnibond.com>
33 * Description:
34 * The perf_counters cache statistics have N, or
35 * perf_history_size, samples. The default is
36 * one.
37 *
38 * Every perf_time_interval_secs the (first)
39 * samples are reset.
40 *
41 * If N is greater than one, the "current" set
42 * of samples is reset, and the samples from the
43 * other N-1 intervals remain available.
44 *
45 *
46 * What: /sys/fs/orangefs/op_timeout_secs
47 * Date: Jun 2015
48 * Contact: Mike Marshall <hubcap@omnibond.com>
49 * Description:
50 * Service operation timeout in seconds.
51 *
52 *
53 * What: /sys/fs/orangefs/slot_timeout_secs
54 * Date: Jun 2015
55 * Contact: Mike Marshall <hubcap@omnibond.com>
56 * Description:
57 * "Slot" timeout in seconds. A "slot"
58 * is an indexed buffer in the shared
59 * memory segment used for communication
60 * between the kernel module and userspace.
61 * Slots are requested and waited for,
62 * the wait times out after slot_timeout_secs.
63 *
64 * What: /sys/fs/orangefs/dcache_timeout_msecs
65 * Date: Jul 2016
66 * Contact: Martin Brandenburg <martin@omnibond.com>
67 * Description:
68 * Time lookup is valid in milliseconds.
69 *
70 * What: /sys/fs/orangefs/getattr_timeout_msecs
71 * Date: Jul 2016
72 * Contact: Martin Brandenburg <martin@omnibond.com>
73 * Description:
74 * Time getattr is valid in milliseconds.
75 *
76 * What: /sys/fs/orangefs/readahead_count
77 * Date: Aug 2016
78 * Contact: Martin Brandenburg <martin@omnibond.com>
79 * Description:
80 * Readahead cache buffer count.
81 *
82 * What: /sys/fs/orangefs/readahead_size
83 * Date: Aug 2016
84 * Contact: Martin Brandenburg <martin@omnibond.com>
85 * Description:
86 * Readahead cache buffer size.
87 *
88 * What: /sys/fs/orangefs/readahead_count_size
89 * Date: Aug 2016
90 * Contact: Martin Brandenburg <martin@omnibond.com>
91 * Description:
92 * Readahead cache buffer count and size.
93 *
94 * What: /sys/fs/orangefs/acache/...
95 * Date: Jun 2015
96 * Contact: Martin Brandenburg <martin@omnibond.com>
97 * Description:
98 * Attribute cache configurable settings.
99 *
100 *
101 * What: /sys/fs/orangefs/ncache/...
102 * Date: Jun 2015
103 * Contact: Mike Marshall <hubcap@omnibond.com>
104 * Description:
105 * Name cache configurable settings.
106 *
107 *
108 * What: /sys/fs/orangefs/capcache/...
109 * Date: Jun 2015
110 * Contact: Mike Marshall <hubcap@omnibond.com>
111 * Description:
112 * Capability cache configurable settings.
113 *
114 *
115 * What: /sys/fs/orangefs/ccache/...
116 * Date: Jun 2015
117 * Contact: Mike Marshall <hubcap@omnibond.com>
118 * Description:
119 * Credential cache configurable settings.
120 *
121 */
122
123 #include <linux/fs.h>
124 #include <linux/kobject.h>
125 #include <linux/string.h>
126 #include <linux/sysfs.h>
127 #include <linux/module.h>
128 #include <linux/init.h>
129
130 #include "protocol.h"
131 #include "orangefs-kernel.h"
132 #include "orangefs-sysfs.h"
133
134 #define ORANGEFS_KOBJ_ID "orangefs"
135 #define ACACHE_KOBJ_ID "acache"
136 #define CAPCACHE_KOBJ_ID "capcache"
137 #define CCACHE_KOBJ_ID "ccache"
138 #define NCACHE_KOBJ_ID "ncache"
139 #define PC_KOBJ_ID "pc"
140 #define STATS_KOBJ_ID "stats"
141
142 /*
143 * Every item calls orangefs_attr_show and orangefs_attr_store through
144 * orangefs_sysfs_ops. They look at the orangefs_attributes further below to
145 * call one of sysfs_int_show, sysfs_int_store, sysfs_service_op_show, or
146 * sysfs_service_op_store.
147 */
148
149 struct orangefs_attribute {
150 struct attribute attr;
151 ssize_t (*show)(struct kobject *kobj,
152 struct orangefs_attribute *attr,
153 char *buf);
154 ssize_t (*store)(struct kobject *kobj,
155 struct orangefs_attribute *attr,
156 const char *buf,
157 size_t count);
158 };
159
160 static ssize_t orangefs_attr_show(struct kobject *kobj,
161 struct attribute *attr,
162 char *buf)
163 {
164 struct orangefs_attribute *attribute;
165
166 attribute = container_of(attr, struct orangefs_attribute, attr);
167 if (!attribute->show)
168 return -EIO;
169 return attribute->show(kobj, attribute, buf);
170 }
171
172 static ssize_t orangefs_attr_store(struct kobject *kobj,
173 struct attribute *attr,
174 const char *buf,
175 size_t len)
176 {
177 struct orangefs_attribute *attribute;
178
179 if (!strcmp(kobj->name, PC_KOBJ_ID) ||
180 !strcmp(kobj->name, STATS_KOBJ_ID))
181 return -EPERM;
182
183 attribute = container_of(attr, struct orangefs_attribute, attr);
184 if (!attribute->store)
185 return -EIO;
186 return attribute->store(kobj, attribute, buf, len);
187 }
188
189 static const struct sysfs_ops orangefs_sysfs_ops = {
190 .show = orangefs_attr_show,
191 .store = orangefs_attr_store,
192 };
193
194 static ssize_t sysfs_int_show(struct kobject *kobj,
195 struct orangefs_attribute *attr, char *buf)
196 {
197 int rc = -EIO;
198
199 gossip_debug(GOSSIP_SYSFS_DEBUG, "sysfs_int_show: id:%s:\n",
200 kobj->name);
201
202 if (!strcmp(kobj->name, ORANGEFS_KOBJ_ID)) {
203 if (!strcmp(attr->attr.name, "op_timeout_secs")) {
204 rc = scnprintf(buf,
205 PAGE_SIZE,
206 "%d\n",
207 op_timeout_secs);
208 goto out;
209 } else if (!strcmp(attr->attr.name,
210 "slot_timeout_secs")) {
211 rc = scnprintf(buf,
212 PAGE_SIZE,
213 "%d\n",
214 slot_timeout_secs);
215 goto out;
216 } else if (!strcmp(attr->attr.name,
217 "dcache_timeout_msecs")) {
218 rc = scnprintf(buf,
219 PAGE_SIZE,
220 "%d\n",
221 orangefs_dcache_timeout_msecs);
222 goto out;
223 } else if (!strcmp(attr->attr.name,
224 "getattr_timeout_msecs")) {
225 rc = scnprintf(buf,
226 PAGE_SIZE,
227 "%d\n",
228 orangefs_getattr_timeout_msecs);
229 goto out;
230 } else {
231 goto out;
232 }
233
234 } else if (!strcmp(kobj->name, STATS_KOBJ_ID)) {
235 if (!strcmp(attr->attr.name, "reads")) {
236 rc = scnprintf(buf,
237 PAGE_SIZE,
238 "%lu\n",
239 orangefs_stats.reads);
240 goto out;
241 } else if (!strcmp(attr->attr.name, "writes")) {
242 rc = scnprintf(buf,
243 PAGE_SIZE,
244 "%lu\n",
245 orangefs_stats.writes);
246 goto out;
247 } else {
248 goto out;
249 }
250 }
251
252 out:
253
254 return rc;
255 }
256
257 static ssize_t sysfs_int_store(struct kobject *kobj,
258 struct orangefs_attribute *attr, const char *buf, size_t count)
259 {
260 int rc = 0;
261
262 gossip_debug(GOSSIP_SYSFS_DEBUG,
263 "sysfs_int_store: start attr->attr.name:%s: buf:%s:\n",
264 attr->attr.name, buf);
265
266 if (!strcmp(attr->attr.name, "op_timeout_secs")) {
267 rc = kstrtoint(buf, 0, &op_timeout_secs);
268 goto out;
269 } else if (!strcmp(attr->attr.name, "slot_timeout_secs")) {
270 rc = kstrtoint(buf, 0, &slot_timeout_secs);
271 goto out;
272 } else if (!strcmp(attr->attr.name, "dcache_timeout_msecs")) {
273 rc = kstrtoint(buf, 0, &orangefs_dcache_timeout_msecs);
274 goto out;
275 } else if (!strcmp(attr->attr.name, "getattr_timeout_msecs")) {
276 rc = kstrtoint(buf, 0, &orangefs_getattr_timeout_msecs);
277 goto out;
278 } else {
279 goto out;
280 }
281
282 out:
283 if (rc)
284 rc = -EINVAL;
285 else
286 rc = count;
287
288 return rc;
289 }
290
291 /*
292 * obtain attribute values from userspace with a service operation.
293 */
294 static ssize_t sysfs_service_op_show(struct kobject *kobj,
295 struct orangefs_attribute *attr, char *buf)
296 {
297 struct orangefs_kernel_op_s *new_op = NULL;
298 int rc = 0;
299 char *ser_op_type = NULL;
300 __u32 op_alloc_type;
301
302 gossip_debug(GOSSIP_SYSFS_DEBUG,
303 "sysfs_service_op_show: id:%s:\n",
304 kobj->name);
305
306 if (strcmp(kobj->name, PC_KOBJ_ID))
307 op_alloc_type = ORANGEFS_VFS_OP_PARAM;
308 else
309 op_alloc_type = ORANGEFS_VFS_OP_PERF_COUNT;
310
311 new_op = op_alloc(op_alloc_type);
312 if (!new_op)
313 return -ENOMEM;
314
315 /* Can't do a service_operation if the client is not running... */
316 rc = is_daemon_in_service();
317 if (rc) {
318 pr_info("%s: Client not running :%d:\n",
319 __func__,
320 is_daemon_in_service());
321 goto out;
322 }
323
324 if (strcmp(kobj->name, PC_KOBJ_ID))
325 new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_GET;
326
327 if (!strcmp(kobj->name, ORANGEFS_KOBJ_ID)) {
328 /* Drop unsupported requests first. */
329 if (!(orangefs_features & ORANGEFS_FEATURE_READAHEAD) &&
330 (!strcmp(attr->attr.name, "readahead_count") ||
331 !strcmp(attr->attr.name, "readahead_size") ||
332 !strcmp(attr->attr.name, "readahead_count_size"))) {
333 rc = -EINVAL;
334 goto out;
335 }
336
337 if (!strcmp(attr->attr.name, "perf_history_size"))
338 new_op->upcall.req.param.op =
339 ORANGEFS_PARAM_REQUEST_OP_PERF_HISTORY_SIZE;
340 else if (!strcmp(attr->attr.name,
341 "perf_time_interval_secs"))
342 new_op->upcall.req.param.op =
343 ORANGEFS_PARAM_REQUEST_OP_PERF_TIME_INTERVAL_SECS;
344 else if (!strcmp(attr->attr.name,
345 "perf_counter_reset"))
346 new_op->upcall.req.param.op =
347 ORANGEFS_PARAM_REQUEST_OP_PERF_RESET;
348
349 else if (!strcmp(attr->attr.name,
350 "readahead_count"))
351 new_op->upcall.req.param.op =
352 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT;
353
354 else if (!strcmp(attr->attr.name,
355 "readahead_size"))
356 new_op->upcall.req.param.op =
357 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_SIZE;
358
359 else if (!strcmp(attr->attr.name,
360 "readahead_count_size"))
361 new_op->upcall.req.param.op =
362 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE;
363 } else if (!strcmp(kobj->name, ACACHE_KOBJ_ID)) {
364 if (!strcmp(attr->attr.name, "timeout_msecs"))
365 new_op->upcall.req.param.op =
366 ORANGEFS_PARAM_REQUEST_OP_ACACHE_TIMEOUT_MSECS;
367
368 if (!strcmp(attr->attr.name, "hard_limit"))
369 new_op->upcall.req.param.op =
370 ORANGEFS_PARAM_REQUEST_OP_ACACHE_HARD_LIMIT;
371
372 if (!strcmp(attr->attr.name, "soft_limit"))
373 new_op->upcall.req.param.op =
374 ORANGEFS_PARAM_REQUEST_OP_ACACHE_SOFT_LIMIT;
375
376 if (!strcmp(attr->attr.name, "reclaim_percentage"))
377 new_op->upcall.req.param.op =
378 ORANGEFS_PARAM_REQUEST_OP_ACACHE_RECLAIM_PERCENTAGE;
379
380 } else if (!strcmp(kobj->name, CAPCACHE_KOBJ_ID)) {
381 if (!strcmp(attr->attr.name, "timeout_secs"))
382 new_op->upcall.req.param.op =
383 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_TIMEOUT_SECS;
384
385 if (!strcmp(attr->attr.name, "hard_limit"))
386 new_op->upcall.req.param.op =
387 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_HARD_LIMIT;
388
389 if (!strcmp(attr->attr.name, "soft_limit"))
390 new_op->upcall.req.param.op =
391 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_SOFT_LIMIT;
392
393 if (!strcmp(attr->attr.name, "reclaim_percentage"))
394 new_op->upcall.req.param.op =
395 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_RECLAIM_PERCENTAGE;
396
397 } else if (!strcmp(kobj->name, CCACHE_KOBJ_ID)) {
398 if (!strcmp(attr->attr.name, "timeout_secs"))
399 new_op->upcall.req.param.op =
400 ORANGEFS_PARAM_REQUEST_OP_CCACHE_TIMEOUT_SECS;
401
402 if (!strcmp(attr->attr.name, "hard_limit"))
403 new_op->upcall.req.param.op =
404 ORANGEFS_PARAM_REQUEST_OP_CCACHE_HARD_LIMIT;
405
406 if (!strcmp(attr->attr.name, "soft_limit"))
407 new_op->upcall.req.param.op =
408 ORANGEFS_PARAM_REQUEST_OP_CCACHE_SOFT_LIMIT;
409
410 if (!strcmp(attr->attr.name, "reclaim_percentage"))
411 new_op->upcall.req.param.op =
412 ORANGEFS_PARAM_REQUEST_OP_CCACHE_RECLAIM_PERCENTAGE;
413
414 } else if (!strcmp(kobj->name, NCACHE_KOBJ_ID)) {
415 if (!strcmp(attr->attr.name, "timeout_msecs"))
416 new_op->upcall.req.param.op =
417 ORANGEFS_PARAM_REQUEST_OP_NCACHE_TIMEOUT_MSECS;
418
419 if (!strcmp(attr->attr.name, "hard_limit"))
420 new_op->upcall.req.param.op =
421 ORANGEFS_PARAM_REQUEST_OP_NCACHE_HARD_LIMIT;
422
423 if (!strcmp(attr->attr.name, "soft_limit"))
424 new_op->upcall.req.param.op =
425 ORANGEFS_PARAM_REQUEST_OP_NCACHE_SOFT_LIMIT;
426
427 if (!strcmp(attr->attr.name, "reclaim_percentage"))
428 new_op->upcall.req.param.op =
429 ORANGEFS_PARAM_REQUEST_OP_NCACHE_RECLAIM_PERCENTAGE;
430
431 } else if (!strcmp(kobj->name, PC_KOBJ_ID)) {
432 if (!strcmp(attr->attr.name, ACACHE_KOBJ_ID))
433 new_op->upcall.req.perf_count.type =
434 ORANGEFS_PERF_COUNT_REQUEST_ACACHE;
435
436 if (!strcmp(attr->attr.name, CAPCACHE_KOBJ_ID))
437 new_op->upcall.req.perf_count.type =
438 ORANGEFS_PERF_COUNT_REQUEST_CAPCACHE;
439
440 if (!strcmp(attr->attr.name, NCACHE_KOBJ_ID))
441 new_op->upcall.req.perf_count.type =
442 ORANGEFS_PERF_COUNT_REQUEST_NCACHE;
443
444 } else {
445 gossip_err("sysfs_service_op_show: unknown kobj_id:%s:\n",
446 kobj->name);
447 rc = -EINVAL;
448 goto out;
449 }
450
451
452 if (strcmp(kobj->name, PC_KOBJ_ID))
453 ser_op_type = "orangefs_param";
454 else
455 ser_op_type = "orangefs_perf_count";
456
457 /*
458 * The service_operation will return an errno return code on
459 * error, and zero on success.
460 */
461 rc = service_operation(new_op, ser_op_type, ORANGEFS_OP_INTERRUPTIBLE);
462
463 out:
464 if (!rc) {
465 if (strcmp(kobj->name, PC_KOBJ_ID)) {
466 if (new_op->upcall.req.param.op ==
467 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE) {
468 rc = scnprintf(buf, PAGE_SIZE, "%d %d\n",
469 (int)new_op->downcall.resp.param.u.
470 value32[0],
471 (int)new_op->downcall.resp.param.u.
472 value32[1]);
473 } else {
474 rc = scnprintf(buf, PAGE_SIZE, "%d\n",
475 (int)new_op->downcall.resp.param.u.value64);
476 }
477 } else {
478 rc = scnprintf(
479 buf,
480 PAGE_SIZE,
481 "%s",
482 new_op->downcall.resp.perf_count.buffer);
483 }
484 }
485
486 op_release(new_op);
487
488 return rc;
489
490 }
491
492 /*
493 * pass attribute values back to userspace with a service operation.
494 *
495 * We have to do a memory allocation, an sscanf and a service operation.
496 * And we have to evaluate what the user entered, to make sure the
497 * value is within the range supported by the attribute. So, there's
498 * a lot of return code checking and mapping going on here.
499 *
500 * We want to return 1 if we think everything went OK, and
501 * EINVAL if not.
502 */
503 static ssize_t sysfs_service_op_store(struct kobject *kobj,
504 struct orangefs_attribute *attr, const char *buf, size_t count)
505 {
506 struct orangefs_kernel_op_s *new_op = NULL;
507 int val = 0;
508 int rc = 0;
509
510 gossip_debug(GOSSIP_SYSFS_DEBUG,
511 "sysfs_service_op_store: id:%s:\n",
512 kobj->name);
513
514 new_op = op_alloc(ORANGEFS_VFS_OP_PARAM);
515 if (!new_op)
516 return -EINVAL; /* sic */
517
518 /* Can't do a service_operation if the client is not running... */
519 rc = is_daemon_in_service();
520 if (rc) {
521 pr_info("%s: Client not running :%d:\n",
522 __func__,
523 is_daemon_in_service());
524 goto out;
525 }
526
527 /*
528 * The value we want to send back to userspace is in buf, unless this
529 * there are two parameters, which is specially handled below.
530 */
531 if (strcmp(kobj->name, ORANGEFS_KOBJ_ID) ||
532 strcmp(attr->attr.name, "readahead_count_size")) {
533 rc = kstrtoint(buf, 0, &val);
534 if (rc)
535 goto out;
536 }
537
538 new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_SET;
539
540 if (!strcmp(kobj->name, ORANGEFS_KOBJ_ID)) {
541 /* Drop unsupported requests first. */
542 if (!(orangefs_features & ORANGEFS_FEATURE_READAHEAD) &&
543 (!strcmp(attr->attr.name, "readahead_count") ||
544 !strcmp(attr->attr.name, "readahead_size") ||
545 !strcmp(attr->attr.name, "readahead_count_size"))) {
546 rc = -EINVAL;
547 goto out;
548 }
549
550 if (!strcmp(attr->attr.name, "perf_history_size")) {
551 if (val > 0) {
552 new_op->upcall.req.param.op =
553 ORANGEFS_PARAM_REQUEST_OP_PERF_HISTORY_SIZE;
554 } else {
555 rc = 0;
556 goto out;
557 }
558 } else if (!strcmp(attr->attr.name,
559 "perf_time_interval_secs")) {
560 if (val > 0) {
561 new_op->upcall.req.param.op =
562 ORANGEFS_PARAM_REQUEST_OP_PERF_TIME_INTERVAL_SECS;
563 } else {
564 rc = 0;
565 goto out;
566 }
567 } else if (!strcmp(attr->attr.name,
568 "perf_counter_reset")) {
569 if ((val == 0) || (val == 1)) {
570 new_op->upcall.req.param.op =
571 ORANGEFS_PARAM_REQUEST_OP_PERF_RESET;
572 } else {
573 rc = 0;
574 goto out;
575 }
576 } else if (!strcmp(attr->attr.name,
577 "readahead_count")) {
578 if ((val >= 0)) {
579 new_op->upcall.req.param.op =
580 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT;
581 } else {
582 rc = 0;
583 goto out;
584 }
585 } else if (!strcmp(attr->attr.name,
586 "readahead_size")) {
587 if ((val >= 0)) {
588 new_op->upcall.req.param.op =
589 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_SIZE;
590 } else {
591 rc = 0;
592 goto out;
593 }
594 } else if (!strcmp(attr->attr.name,
595 "readahead_count_size")) {
596 int val1, val2;
597 rc = sscanf(buf, "%d %d", &val1, &val2);
598 if (rc < 2) {
599 rc = 0;
600 goto out;
601 }
602 if ((val1 >= 0) && (val2 >= 0)) {
603 new_op->upcall.req.param.op =
604 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE;
605 } else {
606 rc = 0;
607 goto out;
608 }
609 new_op->upcall.req.param.u.value32[0] = val1;
610 new_op->upcall.req.param.u.value32[1] = val2;
611 goto value_set;
612 }
613
614 } else if (!strcmp(kobj->name, ACACHE_KOBJ_ID)) {
615 if (!strcmp(attr->attr.name, "hard_limit")) {
616 if (val > -1) {
617 new_op->upcall.req.param.op =
618 ORANGEFS_PARAM_REQUEST_OP_ACACHE_HARD_LIMIT;
619 } else {
620 rc = 0;
621 goto out;
622 }
623 } else if (!strcmp(attr->attr.name, "soft_limit")) {
624 if (val > -1) {
625 new_op->upcall.req.param.op =
626 ORANGEFS_PARAM_REQUEST_OP_ACACHE_SOFT_LIMIT;
627 } else {
628 rc = 0;
629 goto out;
630 }
631 } else if (!strcmp(attr->attr.name,
632 "reclaim_percentage")) {
633 if ((val > -1) && (val < 101)) {
634 new_op->upcall.req.param.op =
635 ORANGEFS_PARAM_REQUEST_OP_ACACHE_RECLAIM_PERCENTAGE;
636 } else {
637 rc = 0;
638 goto out;
639 }
640 } else if (!strcmp(attr->attr.name, "timeout_msecs")) {
641 if (val > -1) {
642 new_op->upcall.req.param.op =
643 ORANGEFS_PARAM_REQUEST_OP_ACACHE_TIMEOUT_MSECS;
644 } else {
645 rc = 0;
646 goto out;
647 }
648 }
649
650 } else if (!strcmp(kobj->name, CAPCACHE_KOBJ_ID)) {
651 if (!strcmp(attr->attr.name, "hard_limit")) {
652 if (val > -1) {
653 new_op->upcall.req.param.op =
654 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_HARD_LIMIT;
655 } else {
656 rc = 0;
657 goto out;
658 }
659 } else if (!strcmp(attr->attr.name, "soft_limit")) {
660 if (val > -1) {
661 new_op->upcall.req.param.op =
662 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_SOFT_LIMIT;
663 } else {
664 rc = 0;
665 goto out;
666 }
667 } else if (!strcmp(attr->attr.name,
668 "reclaim_percentage")) {
669 if ((val > -1) && (val < 101)) {
670 new_op->upcall.req.param.op =
671 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_RECLAIM_PERCENTAGE;
672 } else {
673 rc = 0;
674 goto out;
675 }
676 } else if (!strcmp(attr->attr.name, "timeout_secs")) {
677 if (val > -1) {
678 new_op->upcall.req.param.op =
679 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_TIMEOUT_SECS;
680 } else {
681 rc = 0;
682 goto out;
683 }
684 }
685
686 } else if (!strcmp(kobj->name, CCACHE_KOBJ_ID)) {
687 if (!strcmp(attr->attr.name, "hard_limit")) {
688 if (val > -1) {
689 new_op->upcall.req.param.op =
690 ORANGEFS_PARAM_REQUEST_OP_CCACHE_HARD_LIMIT;
691 } else {
692 rc = 0;
693 goto out;
694 }
695 } else if (!strcmp(attr->attr.name, "soft_limit")) {
696 if (val > -1) {
697 new_op->upcall.req.param.op =
698 ORANGEFS_PARAM_REQUEST_OP_CCACHE_SOFT_LIMIT;
699 } else {
700 rc = 0;
701 goto out;
702 }
703 } else if (!strcmp(attr->attr.name,
704 "reclaim_percentage")) {
705 if ((val > -1) && (val < 101)) {
706 new_op->upcall.req.param.op =
707 ORANGEFS_PARAM_REQUEST_OP_CCACHE_RECLAIM_PERCENTAGE;
708 } else {
709 rc = 0;
710 goto out;
711 }
712 } else if (!strcmp(attr->attr.name, "timeout_secs")) {
713 if (val > -1) {
714 new_op->upcall.req.param.op =
715 ORANGEFS_PARAM_REQUEST_OP_CCACHE_TIMEOUT_SECS;
716 } else {
717 rc = 0;
718 goto out;
719 }
720 }
721
722 } else if (!strcmp(kobj->name, NCACHE_KOBJ_ID)) {
723 if (!strcmp(attr->attr.name, "hard_limit")) {
724 if (val > -1) {
725 new_op->upcall.req.param.op =
726 ORANGEFS_PARAM_REQUEST_OP_NCACHE_HARD_LIMIT;
727 } else {
728 rc = 0;
729 goto out;
730 }
731 } else if (!strcmp(attr->attr.name, "soft_limit")) {
732 if (val > -1) {
733 new_op->upcall.req.param.op =
734 ORANGEFS_PARAM_REQUEST_OP_NCACHE_SOFT_LIMIT;
735 } else {
736 rc = 0;
737 goto out;
738 }
739 } else if (!strcmp(attr->attr.name,
740 "reclaim_percentage")) {
741 if ((val > -1) && (val < 101)) {
742 new_op->upcall.req.param.op =
743 ORANGEFS_PARAM_REQUEST_OP_NCACHE_RECLAIM_PERCENTAGE;
744 } else {
745 rc = 0;
746 goto out;
747 }
748 } else if (!strcmp(attr->attr.name, "timeout_msecs")) {
749 if (val > -1) {
750 new_op->upcall.req.param.op =
751 ORANGEFS_PARAM_REQUEST_OP_NCACHE_TIMEOUT_MSECS;
752 } else {
753 rc = 0;
754 goto out;
755 }
756 }
757
758 } else {
759 gossip_err("sysfs_service_op_store: unknown kobj_id:%s:\n",
760 kobj->name);
761 rc = -EINVAL;
762 goto out;
763 }
764
765 new_op->upcall.req.param.u.value64 = val;
766 value_set:
767
768 /*
769 * The service_operation will return a errno return code on
770 * error, and zero on success.
771 */
772 rc = service_operation(new_op, "orangefs_param", ORANGEFS_OP_INTERRUPTIBLE);
773
774 if (rc < 0) {
775 gossip_err("sysfs_service_op_store: service op returned:%d:\n",
776 rc);
777 rc = 0;
778 } else {
779 rc = count;
780 }
781
782 out:
783 op_release(new_op);
784
785 if (rc == -ENOMEM || rc == 0)
786 rc = -EINVAL;
787
788 return rc;
789 }
790
791 static struct orangefs_attribute op_timeout_secs_attribute =
792 __ATTR(op_timeout_secs, 0664, sysfs_int_show, sysfs_int_store);
793
794 static struct orangefs_attribute slot_timeout_secs_attribute =
795 __ATTR(slot_timeout_secs, 0664, sysfs_int_show, sysfs_int_store);
796
797 static struct orangefs_attribute dcache_timeout_msecs_attribute =
798 __ATTR(dcache_timeout_msecs, 0664, sysfs_int_show, sysfs_int_store);
799
800 static struct orangefs_attribute getattr_timeout_msecs_attribute =
801 __ATTR(getattr_timeout_msecs, 0664, sysfs_int_show, sysfs_int_store);
802
803 static struct orangefs_attribute readahead_count_attribute =
804 __ATTR(readahead_count, 0664, sysfs_service_op_show,
805 sysfs_service_op_store);
806
807 static struct orangefs_attribute readahead_size_attribute =
808 __ATTR(readahead_size, 0664, sysfs_service_op_show,
809 sysfs_service_op_store);
810
811 static struct orangefs_attribute readahead_count_size_attribute =
812 __ATTR(readahead_count_size, 0664, sysfs_service_op_show,
813 sysfs_service_op_store);
814
815 static struct orangefs_attribute perf_counter_reset_attribute =
816 __ATTR(perf_counter_reset,
817 0664,
818 sysfs_service_op_show,
819 sysfs_service_op_store);
820
821 static struct orangefs_attribute perf_history_size_attribute =
822 __ATTR(perf_history_size,
823 0664,
824 sysfs_service_op_show,
825 sysfs_service_op_store);
826
827 static struct orangefs_attribute perf_time_interval_secs_attribute =
828 __ATTR(perf_time_interval_secs,
829 0664,
830 sysfs_service_op_show,
831 sysfs_service_op_store);
832
833 static struct attribute *orangefs_default_attrs[] = {
834 &op_timeout_secs_attribute.attr,
835 &slot_timeout_secs_attribute.attr,
836 &dcache_timeout_msecs_attribute.attr,
837 &getattr_timeout_msecs_attribute.attr,
838 &readahead_count_attribute.attr,
839 &readahead_size_attribute.attr,
840 &readahead_count_size_attribute.attr,
841 &perf_counter_reset_attribute.attr,
842 &perf_history_size_attribute.attr,
843 &perf_time_interval_secs_attribute.attr,
844 NULL,
845 };
846
847 static struct kobj_type orangefs_ktype = {
848 .sysfs_ops = &orangefs_sysfs_ops,
849 .default_attrs = orangefs_default_attrs,
850 };
851
852 static struct orangefs_attribute acache_hard_limit_attribute =
853 __ATTR(hard_limit,
854 0664,
855 sysfs_service_op_show,
856 sysfs_service_op_store);
857
858 static struct orangefs_attribute acache_reclaim_percent_attribute =
859 __ATTR(reclaim_percentage,
860 0664,
861 sysfs_service_op_show,
862 sysfs_service_op_store);
863
864 static struct orangefs_attribute acache_soft_limit_attribute =
865 __ATTR(soft_limit,
866 0664,
867 sysfs_service_op_show,
868 sysfs_service_op_store);
869
870 static struct orangefs_attribute acache_timeout_msecs_attribute =
871 __ATTR(timeout_msecs,
872 0664,
873 sysfs_service_op_show,
874 sysfs_service_op_store);
875
876 static struct attribute *acache_orangefs_default_attrs[] = {
877 &acache_hard_limit_attribute.attr,
878 &acache_reclaim_percent_attribute.attr,
879 &acache_soft_limit_attribute.attr,
880 &acache_timeout_msecs_attribute.attr,
881 NULL,
882 };
883
884 static struct kobj_type acache_orangefs_ktype = {
885 .sysfs_ops = &orangefs_sysfs_ops,
886 .default_attrs = acache_orangefs_default_attrs,
887 };
888
889 static struct orangefs_attribute capcache_hard_limit_attribute =
890 __ATTR(hard_limit,
891 0664,
892 sysfs_service_op_show,
893 sysfs_service_op_store);
894
895 static struct orangefs_attribute capcache_reclaim_percent_attribute =
896 __ATTR(reclaim_percentage,
897 0664,
898 sysfs_service_op_show,
899 sysfs_service_op_store);
900
901 static struct orangefs_attribute capcache_soft_limit_attribute =
902 __ATTR(soft_limit,
903 0664,
904 sysfs_service_op_show,
905 sysfs_service_op_store);
906
907 static struct orangefs_attribute capcache_timeout_secs_attribute =
908 __ATTR(timeout_secs,
909 0664,
910 sysfs_service_op_show,
911 sysfs_service_op_store);
912
913 static struct attribute *capcache_orangefs_default_attrs[] = {
914 &capcache_hard_limit_attribute.attr,
915 &capcache_reclaim_percent_attribute.attr,
916 &capcache_soft_limit_attribute.attr,
917 &capcache_timeout_secs_attribute.attr,
918 NULL,
919 };
920
921 static struct kobj_type capcache_orangefs_ktype = {
922 .sysfs_ops = &orangefs_sysfs_ops,
923 .default_attrs = capcache_orangefs_default_attrs,
924 };
925
926 static struct orangefs_attribute ccache_hard_limit_attribute =
927 __ATTR(hard_limit,
928 0664,
929 sysfs_service_op_show,
930 sysfs_service_op_store);
931
932 static struct orangefs_attribute ccache_reclaim_percent_attribute =
933 __ATTR(reclaim_percentage,
934 0664,
935 sysfs_service_op_show,
936 sysfs_service_op_store);
937
938 static struct orangefs_attribute ccache_soft_limit_attribute =
939 __ATTR(soft_limit,
940 0664,
941 sysfs_service_op_show,
942 sysfs_service_op_store);
943
944 static struct orangefs_attribute ccache_timeout_secs_attribute =
945 __ATTR(timeout_secs,
946 0664,
947 sysfs_service_op_show,
948 sysfs_service_op_store);
949
950 static struct attribute *ccache_orangefs_default_attrs[] = {
951 &ccache_hard_limit_attribute.attr,
952 &ccache_reclaim_percent_attribute.attr,
953 &ccache_soft_limit_attribute.attr,
954 &ccache_timeout_secs_attribute.attr,
955 NULL,
956 };
957
958 static struct kobj_type ccache_orangefs_ktype = {
959 .sysfs_ops = &orangefs_sysfs_ops,
960 .default_attrs = ccache_orangefs_default_attrs,
961 };
962
963 static struct orangefs_attribute ncache_hard_limit_attribute =
964 __ATTR(hard_limit,
965 0664,
966 sysfs_service_op_show,
967 sysfs_service_op_store);
968
969 static struct orangefs_attribute ncache_reclaim_percent_attribute =
970 __ATTR(reclaim_percentage,
971 0664,
972 sysfs_service_op_show,
973 sysfs_service_op_store);
974
975 static struct orangefs_attribute ncache_soft_limit_attribute =
976 __ATTR(soft_limit,
977 0664,
978 sysfs_service_op_show,
979 sysfs_service_op_store);
980
981 static struct orangefs_attribute ncache_timeout_msecs_attribute =
982 __ATTR(timeout_msecs,
983 0664,
984 sysfs_service_op_show,
985 sysfs_service_op_store);
986
987 static struct attribute *ncache_orangefs_default_attrs[] = {
988 &ncache_hard_limit_attribute.attr,
989 &ncache_reclaim_percent_attribute.attr,
990 &ncache_soft_limit_attribute.attr,
991 &ncache_timeout_msecs_attribute.attr,
992 NULL,
993 };
994
995 static struct kobj_type ncache_orangefs_ktype = {
996 .sysfs_ops = &orangefs_sysfs_ops,
997 .default_attrs = ncache_orangefs_default_attrs,
998 };
999
1000 static struct orangefs_attribute pc_acache_attribute =
1001 __ATTR(acache,
1002 0664,
1003 sysfs_service_op_show,
1004 NULL);
1005
1006 static struct orangefs_attribute pc_capcache_attribute =
1007 __ATTR(capcache,
1008 0664,
1009 sysfs_service_op_show,
1010 NULL);
1011
1012 static struct orangefs_attribute pc_ncache_attribute =
1013 __ATTR(ncache,
1014 0664,
1015 sysfs_service_op_show,
1016 NULL);
1017
1018 static struct attribute *pc_orangefs_default_attrs[] = {
1019 &pc_acache_attribute.attr,
1020 &pc_capcache_attribute.attr,
1021 &pc_ncache_attribute.attr,
1022 NULL,
1023 };
1024
1025 static struct kobj_type pc_orangefs_ktype = {
1026 .sysfs_ops = &orangefs_sysfs_ops,
1027 .default_attrs = pc_orangefs_default_attrs,
1028 };
1029
1030 static struct orangefs_attribute stats_reads_attribute =
1031 __ATTR(reads,
1032 0664,
1033 sysfs_int_show,
1034 NULL);
1035
1036 static struct orangefs_attribute stats_writes_attribute =
1037 __ATTR(writes,
1038 0664,
1039 sysfs_int_show,
1040 NULL);
1041
1042 static struct attribute *stats_orangefs_default_attrs[] = {
1043 &stats_reads_attribute.attr,
1044 &stats_writes_attribute.attr,
1045 NULL,
1046 };
1047
1048 static struct kobj_type stats_orangefs_ktype = {
1049 .sysfs_ops = &orangefs_sysfs_ops,
1050 .default_attrs = stats_orangefs_default_attrs,
1051 };
1052
1053 static struct kobject *orangefs_obj;
1054 static struct kobject *acache_orangefs_obj;
1055 static struct kobject *capcache_orangefs_obj;
1056 static struct kobject *ccache_orangefs_obj;
1057 static struct kobject *ncache_orangefs_obj;
1058 static struct kobject *pc_orangefs_obj;
1059 static struct kobject *stats_orangefs_obj;
1060
1061 int orangefs_sysfs_init(void)
1062 {
1063 int rc = -EINVAL;
1064
1065 gossip_debug(GOSSIP_SYSFS_DEBUG, "orangefs_sysfs_init: start\n");
1066
1067 /* create /sys/fs/orangefs. */
1068 orangefs_obj = kzalloc(sizeof(*orangefs_obj), GFP_KERNEL);
1069 if (!orangefs_obj)
1070 goto out;
1071
1072 rc = kobject_init_and_add(orangefs_obj,
1073 &orangefs_ktype,
1074 fs_kobj,
1075 ORANGEFS_KOBJ_ID);
1076
1077 if (rc)
1078 goto ofs_obj_bail;
1079
1080 kobject_uevent(orangefs_obj, KOBJ_ADD);
1081
1082 /* create /sys/fs/orangefs/acache. */
1083 acache_orangefs_obj = kzalloc(sizeof(*acache_orangefs_obj), GFP_KERNEL);
1084 if (!acache_orangefs_obj) {
1085 rc = -EINVAL;
1086 goto ofs_obj_bail;
1087 }
1088
1089 rc = kobject_init_and_add(acache_orangefs_obj,
1090 &acache_orangefs_ktype,
1091 orangefs_obj,
1092 ACACHE_KOBJ_ID);
1093
1094 if (rc)
1095 goto acache_obj_bail;
1096
1097 kobject_uevent(acache_orangefs_obj, KOBJ_ADD);
1098
1099 /* create /sys/fs/orangefs/capcache. */
1100 capcache_orangefs_obj =
1101 kzalloc(sizeof(*capcache_orangefs_obj), GFP_KERNEL);
1102 if (!capcache_orangefs_obj) {
1103 rc = -EINVAL;
1104 goto acache_obj_bail;
1105 }
1106
1107 rc = kobject_init_and_add(capcache_orangefs_obj,
1108 &capcache_orangefs_ktype,
1109 orangefs_obj,
1110 CAPCACHE_KOBJ_ID);
1111 if (rc)
1112 goto capcache_obj_bail;
1113
1114 kobject_uevent(capcache_orangefs_obj, KOBJ_ADD);
1115
1116 /* create /sys/fs/orangefs/ccache. */
1117 ccache_orangefs_obj =
1118 kzalloc(sizeof(*ccache_orangefs_obj), GFP_KERNEL);
1119 if (!ccache_orangefs_obj) {
1120 rc = -EINVAL;
1121 goto capcache_obj_bail;
1122 }
1123
1124 rc = kobject_init_and_add(ccache_orangefs_obj,
1125 &ccache_orangefs_ktype,
1126 orangefs_obj,
1127 CCACHE_KOBJ_ID);
1128 if (rc)
1129 goto ccache_obj_bail;
1130
1131 kobject_uevent(ccache_orangefs_obj, KOBJ_ADD);
1132
1133 /* create /sys/fs/orangefs/ncache. */
1134 ncache_orangefs_obj = kzalloc(sizeof(*ncache_orangefs_obj), GFP_KERNEL);
1135 if (!ncache_orangefs_obj) {
1136 rc = -EINVAL;
1137 goto ccache_obj_bail;
1138 }
1139
1140 rc = kobject_init_and_add(ncache_orangefs_obj,
1141 &ncache_orangefs_ktype,
1142 orangefs_obj,
1143 NCACHE_KOBJ_ID);
1144
1145 if (rc)
1146 goto ncache_obj_bail;
1147
1148 kobject_uevent(ncache_orangefs_obj, KOBJ_ADD);
1149
1150 /* create /sys/fs/orangefs/perf_counters. */
1151 pc_orangefs_obj = kzalloc(sizeof(*pc_orangefs_obj), GFP_KERNEL);
1152 if (!pc_orangefs_obj) {
1153 rc = -EINVAL;
1154 goto ncache_obj_bail;
1155 }
1156
1157 rc = kobject_init_and_add(pc_orangefs_obj,
1158 &pc_orangefs_ktype,
1159 orangefs_obj,
1160 "perf_counters");
1161
1162 if (rc)
1163 goto pc_obj_bail;
1164
1165 kobject_uevent(pc_orangefs_obj, KOBJ_ADD);
1166
1167 /* create /sys/fs/orangefs/stats. */
1168 stats_orangefs_obj = kzalloc(sizeof(*stats_orangefs_obj), GFP_KERNEL);
1169 if (!stats_orangefs_obj) {
1170 rc = -EINVAL;
1171 goto pc_obj_bail;
1172 }
1173
1174 rc = kobject_init_and_add(stats_orangefs_obj,
1175 &stats_orangefs_ktype,
1176 orangefs_obj,
1177 STATS_KOBJ_ID);
1178
1179 if (rc)
1180 goto stats_obj_bail;
1181
1182 kobject_uevent(stats_orangefs_obj, KOBJ_ADD);
1183 goto out;
1184
1185 stats_obj_bail:
1186 kobject_put(stats_orangefs_obj);
1187 pc_obj_bail:
1188 kobject_put(pc_orangefs_obj);
1189 ncache_obj_bail:
1190 kobject_put(ncache_orangefs_obj);
1191 ccache_obj_bail:
1192 kobject_put(ccache_orangefs_obj);
1193 capcache_obj_bail:
1194 kobject_put(capcache_orangefs_obj);
1195 acache_obj_bail:
1196 kobject_put(acache_orangefs_obj);
1197 ofs_obj_bail:
1198 kobject_put(orangefs_obj);
1199 out:
1200 return rc;
1201 }
1202
1203 void orangefs_sysfs_exit(void)
1204 {
1205 gossip_debug(GOSSIP_SYSFS_DEBUG, "orangefs_sysfs_exit: start\n");
1206 kobject_put(acache_orangefs_obj);
1207 kobject_put(capcache_orangefs_obj);
1208 kobject_put(ccache_orangefs_obj);
1209 kobject_put(ncache_orangefs_obj);
1210 kobject_put(pc_orangefs_obj);
1211 kobject_put(stats_orangefs_obj);
1212 kobject_put(orangefs_obj);
1213 }
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