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bus: mhi: core: Fix some error return code
[linux/fpc-iii.git] / fs / orangefs / orangefs-sysfs.c
blob3627ea946402c01299ec0bde3fa50127f1ab0e21
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Documentation/ABI/stable/sysfs-fs-orangefs:
4 *
5 * What: /sys/fs/orangefs/perf_counter_reset
6 * Date: June 2015
7 * Contact: Mike Marshall <hubcap@omnibond.com>
8 * Description:
9 * echo a 0 or a 1 into perf_counter_reset to
10 * reset all the counters in
11 * /sys/fs/orangefs/perf_counters
12 * except ones with PINT_PERF_PRESERVE set.
13 *
14 *
15 * What: /sys/fs/orangefs/perf_counters/...
16 * Date: Jun 2015
17 * Contact: Mike Marshall <hubcap@omnibond.com>
18 * Description:
19 * Counters and settings for various caches.
20 * Read only.
21 *
22 *
23 * What: /sys/fs/orangefs/perf_time_interval_secs
24 * Date: Jun 2015
25 * Contact: Mike Marshall <hubcap@omnibond.com>
26 * Description:
27 * Length of perf counter intervals in
28 * seconds.
29 *
30 *
31 * What: /sys/fs/orangefs/perf_history_size
32 * Date: Jun 2015
33 * Contact: Mike Marshall <hubcap@omnibond.com>
34 * Description:
35 * The perf_counters cache statistics have N, or
36 * perf_history_size, samples. The default is
37 * one.
38 *
39 * Every perf_time_interval_secs the (first)
40 * samples are reset.
41 *
42 * If N is greater than one, the "current" set
43 * of samples is reset, and the samples from the
44 * other N-1 intervals remain available.
45 *
46 *
47 * What: /sys/fs/orangefs/op_timeout_secs
48 * Date: Jun 2015
49 * Contact: Mike Marshall <hubcap@omnibond.com>
50 * Description:
51 * Service operation timeout in seconds.
52 *
53 *
54 * What: /sys/fs/orangefs/slot_timeout_secs
55 * Date: Jun 2015
56 * Contact: Mike Marshall <hubcap@omnibond.com>
57 * Description:
58 * "Slot" timeout in seconds. A "slot"
59 * is an indexed buffer in the shared
60 * memory segment used for communication
61 * between the kernel module and userspace.
62 * Slots are requested and waited for,
63 * the wait times out after slot_timeout_secs.
64 *
65 * What: /sys/fs/orangefs/cache_timeout_msecs
66 * Date: Mar 2018
67 * Contact: Martin Brandenburg <martin@omnibond.com>
68 * Description:
69 * Time in milliseconds between which
70 * orangefs_revalidate_mapping will invalidate the page
71 * cache.
72 *
73 * What: /sys/fs/orangefs/dcache_timeout_msecs
74 * Date: Jul 2016
75 * Contact: Martin Brandenburg <martin@omnibond.com>
76 * Description:
77 * Time lookup is valid in milliseconds.
78 *
79 * What: /sys/fs/orangefs/getattr_timeout_msecs
80 * Date: Jul 2016
81 * Contact: Martin Brandenburg <martin@omnibond.com>
82 * Description:
83 * Time getattr is valid in milliseconds.
84 *
85 * What: /sys/fs/orangefs/readahead_count
86 * Date: Aug 2016
87 * Contact: Martin Brandenburg <martin@omnibond.com>
88 * Description:
89 * Readahead cache buffer count.
90 *
91 * What: /sys/fs/orangefs/readahead_size
92 * Date: Aug 2016
93 * Contact: Martin Brandenburg <martin@omnibond.com>
94 * Description:
95 * Readahead cache buffer size.
96 *
97 * What: /sys/fs/orangefs/readahead_count_size
98 * Date: Aug 2016
99 * Contact: Martin Brandenburg <martin@omnibond.com>
100 * Description:
101 * Readahead cache buffer count and size.
102 *
103 * What: /sys/fs/orangefs/readahead_readcnt
104 * Date: Jan 2017
105 * Contact: Martin Brandenburg <martin@omnibond.com>
106 * Description:
107 * Number of buffers (in multiples of readahead_size)
108 * which can be read ahead for a single file at once.
109 *
110 * What: /sys/fs/orangefs/acache/...
111 * Date: Jun 2015
112 * Contact: Martin Brandenburg <martin@omnibond.com>
113 * Description:
114 * Attribute cache configurable settings.
115 *
116 *
117 * What: /sys/fs/orangefs/ncache/...
118 * Date: Jun 2015
119 * Contact: Mike Marshall <hubcap@omnibond.com>
120 * Description:
121 * Name cache configurable settings.
122 *
123 *
124 * What: /sys/fs/orangefs/capcache/...
125 * Date: Jun 2015
126 * Contact: Mike Marshall <hubcap@omnibond.com>
127 * Description:
128 * Capability cache configurable settings.
129 *
130 *
131 * What: /sys/fs/orangefs/ccache/...
132 * Date: Jun 2015
133 * Contact: Mike Marshall <hubcap@omnibond.com>
134 * Description:
135 * Credential cache configurable settings.
136 *
137 */
138
139 #include <linux/fs.h>
140 #include <linux/kobject.h>
141 #include <linux/string.h>
142 #include <linux/sysfs.h>
143 #include <linux/module.h>
144 #include <linux/init.h>
145
146 #include "protocol.h"
147 #include "orangefs-kernel.h"
148 #include "orangefs-sysfs.h"
149
150 #define ORANGEFS_KOBJ_ID "orangefs"
151 #define ACACHE_KOBJ_ID "acache"
152 #define CAPCACHE_KOBJ_ID "capcache"
153 #define CCACHE_KOBJ_ID "ccache"
154 #define NCACHE_KOBJ_ID "ncache"
155 #define PC_KOBJ_ID "pc"
156 #define STATS_KOBJ_ID "stats"
157
158 /*
159 * Every item calls orangefs_attr_show and orangefs_attr_store through
160 * orangefs_sysfs_ops. They look at the orangefs_attributes further below to
161 * call one of sysfs_int_show, sysfs_int_store, sysfs_service_op_show, or
162 * sysfs_service_op_store.
163 */
164
165 struct orangefs_attribute {
166 struct attribute attr;
167 ssize_t (*show)(struct kobject *kobj,
168 struct orangefs_attribute *attr,
169 char *buf);
170 ssize_t (*store)(struct kobject *kobj,
171 struct orangefs_attribute *attr,
172 const char *buf,
173 size_t count);
174 };
175
176 static ssize_t orangefs_attr_show(struct kobject *kobj,
177 struct attribute *attr,
178 char *buf)
179 {
180 struct orangefs_attribute *attribute;
181
182 attribute = container_of(attr, struct orangefs_attribute, attr);
183 if (!attribute->show)
184 return -EIO;
185 return attribute->show(kobj, attribute, buf);
186 }
187
188 static ssize_t orangefs_attr_store(struct kobject *kobj,
189 struct attribute *attr,
190 const char *buf,
191 size_t len)
192 {
193 struct orangefs_attribute *attribute;
194
195 if (!strcmp(kobj->name, PC_KOBJ_ID) ||
196 !strcmp(kobj->name, STATS_KOBJ_ID))
197 return -EPERM;
198
199 attribute = container_of(attr, struct orangefs_attribute, attr);
200 if (!attribute->store)
201 return -EIO;
202 return attribute->store(kobj, attribute, buf, len);
203 }
204
205 static const struct sysfs_ops orangefs_sysfs_ops = {
206 .show = orangefs_attr_show,
207 .store = orangefs_attr_store,
208 };
209
210 static ssize_t sysfs_int_show(struct kobject *kobj,
211 struct orangefs_attribute *attr, char *buf)
212 {
213 int rc = -EIO;
214
215 gossip_debug(GOSSIP_SYSFS_DEBUG, "sysfs_int_show: id:%s:\n",
216 kobj->name);
217
218 if (!strcmp(kobj->name, ORANGEFS_KOBJ_ID)) {
219 if (!strcmp(attr->attr.name, "op_timeout_secs")) {
220 rc = scnprintf(buf,
221 PAGE_SIZE,
222 "%d\n",
223 op_timeout_secs);
224 goto out;
225 } else if (!strcmp(attr->attr.name,
226 "slot_timeout_secs")) {
227 rc = scnprintf(buf,
228 PAGE_SIZE,
229 "%d\n",
230 slot_timeout_secs);
231 goto out;
232 } else if (!strcmp(attr->attr.name,
233 "cache_timeout_msecs")) {
234 rc = scnprintf(buf,
235 PAGE_SIZE,
236 "%d\n",
237 orangefs_cache_timeout_msecs);
238 goto out;
239 } else if (!strcmp(attr->attr.name,
240 "dcache_timeout_msecs")) {
241 rc = scnprintf(buf,
242 PAGE_SIZE,
243 "%d\n",
244 orangefs_dcache_timeout_msecs);
245 goto out;
246 } else if (!strcmp(attr->attr.name,
247 "getattr_timeout_msecs")) {
248 rc = scnprintf(buf,
249 PAGE_SIZE,
250 "%d\n",
251 orangefs_getattr_timeout_msecs);
252 goto out;
253 } else {
254 goto out;
255 }
256
257 } else if (!strcmp(kobj->name, STATS_KOBJ_ID)) {
258 if (!strcmp(attr->attr.name, "reads")) {
259 rc = scnprintf(buf,
260 PAGE_SIZE,
261 "%lu\n",
262 orangefs_stats.reads);
263 goto out;
264 } else if (!strcmp(attr->attr.name, "writes")) {
265 rc = scnprintf(buf,
266 PAGE_SIZE,
267 "%lu\n",
268 orangefs_stats.writes);
269 goto out;
270 } else {
271 goto out;
272 }
273 }
274
275 out:
276
277 return rc;
278 }
279
280 static ssize_t sysfs_int_store(struct kobject *kobj,
281 struct orangefs_attribute *attr, const char *buf, size_t count)
282 {
283 int rc = 0;
284
285 gossip_debug(GOSSIP_SYSFS_DEBUG,
286 "sysfs_int_store: start attr->attr.name:%s: buf:%s:\n",
287 attr->attr.name, buf);
288
289 if (!strcmp(attr->attr.name, "op_timeout_secs")) {
290 rc = kstrtoint(buf, 0, &op_timeout_secs);
291 goto out;
292 } else if (!strcmp(attr->attr.name, "slot_timeout_secs")) {
293 rc = kstrtoint(buf, 0, &slot_timeout_secs);
294 goto out;
295 } else if (!strcmp(attr->attr.name, "cache_timeout_msecs")) {
296 rc = kstrtoint(buf, 0, &orangefs_cache_timeout_msecs);
297 goto out;
298 } else if (!strcmp(attr->attr.name, "dcache_timeout_msecs")) {
299 rc = kstrtoint(buf, 0, &orangefs_dcache_timeout_msecs);
300 goto out;
301 } else if (!strcmp(attr->attr.name, "getattr_timeout_msecs")) {
302 rc = kstrtoint(buf, 0, &orangefs_getattr_timeout_msecs);
303 goto out;
304 } else {
305 goto out;
306 }
307
308 out:
309 if (rc)
310 rc = -EINVAL;
311 else
312 rc = count;
313
314 return rc;
315 }
316
317 /*
318 * obtain attribute values from userspace with a service operation.
319 */
320 static ssize_t sysfs_service_op_show(struct kobject *kobj,
321 struct orangefs_attribute *attr, char *buf)
322 {
323 struct orangefs_kernel_op_s *new_op = NULL;
324 int rc = 0;
325 char *ser_op_type = NULL;
326 __u32 op_alloc_type;
327
328 gossip_debug(GOSSIP_SYSFS_DEBUG,
329 "sysfs_service_op_show: id:%s:\n",
330 kobj->name);
331
332 if (strcmp(kobj->name, PC_KOBJ_ID))
333 op_alloc_type = ORANGEFS_VFS_OP_PARAM;
334 else
335 op_alloc_type = ORANGEFS_VFS_OP_PERF_COUNT;
336
337 new_op = op_alloc(op_alloc_type);
338 if (!new_op)
339 return -ENOMEM;
340
341 /* Can't do a service_operation if the client is not running... */
342 rc = is_daemon_in_service();
343 if (rc) {
344 pr_info_ratelimited("%s: Client not running :%d:\n",
345 __func__,
346 is_daemon_in_service());
347 goto out;
348 }
349
350 if (strcmp(kobj->name, PC_KOBJ_ID))
351 new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_GET;
352
353 if (!strcmp(kobj->name, ORANGEFS_KOBJ_ID)) {
354 /* Drop unsupported requests first. */
355 if (!(orangefs_features & ORANGEFS_FEATURE_READAHEAD) &&
356 (!strcmp(attr->attr.name, "readahead_count") ||
357 !strcmp(attr->attr.name, "readahead_size") ||
358 !strcmp(attr->attr.name, "readahead_count_size") ||
359 !strcmp(attr->attr.name, "readahead_readcnt"))) {
360 rc = -EINVAL;
361 goto out;
362 }
363
364 if (!strcmp(attr->attr.name, "perf_history_size"))
365 new_op->upcall.req.param.op =
366 ORANGEFS_PARAM_REQUEST_OP_PERF_HISTORY_SIZE;
367 else if (!strcmp(attr->attr.name,
368 "perf_time_interval_secs"))
369 new_op->upcall.req.param.op =
370 ORANGEFS_PARAM_REQUEST_OP_PERF_TIME_INTERVAL_SECS;
371 else if (!strcmp(attr->attr.name,
372 "perf_counter_reset"))
373 new_op->upcall.req.param.op =
374 ORANGEFS_PARAM_REQUEST_OP_PERF_RESET;
375
376 else if (!strcmp(attr->attr.name,
377 "readahead_count"))
378 new_op->upcall.req.param.op =
379 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT;
380
381 else if (!strcmp(attr->attr.name,
382 "readahead_size"))
383 new_op->upcall.req.param.op =
384 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_SIZE;
385
386 else if (!strcmp(attr->attr.name,
387 "readahead_count_size"))
388 new_op->upcall.req.param.op =
389 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE;
390
391 else if (!strcmp(attr->attr.name,
392 "readahead_readcnt"))
393 new_op->upcall.req.param.op =
394 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_READCNT;
395 } else if (!strcmp(kobj->name, ACACHE_KOBJ_ID)) {
396 if (!strcmp(attr->attr.name, "timeout_msecs"))
397 new_op->upcall.req.param.op =
398 ORANGEFS_PARAM_REQUEST_OP_ACACHE_TIMEOUT_MSECS;
399
400 if (!strcmp(attr->attr.name, "hard_limit"))
401 new_op->upcall.req.param.op =
402 ORANGEFS_PARAM_REQUEST_OP_ACACHE_HARD_LIMIT;
403
404 if (!strcmp(attr->attr.name, "soft_limit"))
405 new_op->upcall.req.param.op =
406 ORANGEFS_PARAM_REQUEST_OP_ACACHE_SOFT_LIMIT;
407
408 if (!strcmp(attr->attr.name, "reclaim_percentage"))
409 new_op->upcall.req.param.op =
410 ORANGEFS_PARAM_REQUEST_OP_ACACHE_RECLAIM_PERCENTAGE;
411
412 } else if (!strcmp(kobj->name, CAPCACHE_KOBJ_ID)) {
413 if (!strcmp(attr->attr.name, "timeout_secs"))
414 new_op->upcall.req.param.op =
415 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_TIMEOUT_SECS;
416
417 if (!strcmp(attr->attr.name, "hard_limit"))
418 new_op->upcall.req.param.op =
419 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_HARD_LIMIT;
420
421 if (!strcmp(attr->attr.name, "soft_limit"))
422 new_op->upcall.req.param.op =
423 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_SOFT_LIMIT;
424
425 if (!strcmp(attr->attr.name, "reclaim_percentage"))
426 new_op->upcall.req.param.op =
427 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_RECLAIM_PERCENTAGE;
428
429 } else if (!strcmp(kobj->name, CCACHE_KOBJ_ID)) {
430 if (!strcmp(attr->attr.name, "timeout_secs"))
431 new_op->upcall.req.param.op =
432 ORANGEFS_PARAM_REQUEST_OP_CCACHE_TIMEOUT_SECS;
433
434 if (!strcmp(attr->attr.name, "hard_limit"))
435 new_op->upcall.req.param.op =
436 ORANGEFS_PARAM_REQUEST_OP_CCACHE_HARD_LIMIT;
437
438 if (!strcmp(attr->attr.name, "soft_limit"))
439 new_op->upcall.req.param.op =
440 ORANGEFS_PARAM_REQUEST_OP_CCACHE_SOFT_LIMIT;
441
442 if (!strcmp(attr->attr.name, "reclaim_percentage"))
443 new_op->upcall.req.param.op =
444 ORANGEFS_PARAM_REQUEST_OP_CCACHE_RECLAIM_PERCENTAGE;
445
446 } else if (!strcmp(kobj->name, NCACHE_KOBJ_ID)) {
447 if (!strcmp(attr->attr.name, "timeout_msecs"))
448 new_op->upcall.req.param.op =
449 ORANGEFS_PARAM_REQUEST_OP_NCACHE_TIMEOUT_MSECS;
450
451 if (!strcmp(attr->attr.name, "hard_limit"))
452 new_op->upcall.req.param.op =
453 ORANGEFS_PARAM_REQUEST_OP_NCACHE_HARD_LIMIT;
454
455 if (!strcmp(attr->attr.name, "soft_limit"))
456 new_op->upcall.req.param.op =
457 ORANGEFS_PARAM_REQUEST_OP_NCACHE_SOFT_LIMIT;
458
459 if (!strcmp(attr->attr.name, "reclaim_percentage"))
460 new_op->upcall.req.param.op =
461 ORANGEFS_PARAM_REQUEST_OP_NCACHE_RECLAIM_PERCENTAGE;
462
463 } else if (!strcmp(kobj->name, PC_KOBJ_ID)) {
464 if (!strcmp(attr->attr.name, ACACHE_KOBJ_ID))
465 new_op->upcall.req.perf_count.type =
466 ORANGEFS_PERF_COUNT_REQUEST_ACACHE;
467
468 if (!strcmp(attr->attr.name, CAPCACHE_KOBJ_ID))
469 new_op->upcall.req.perf_count.type =
470 ORANGEFS_PERF_COUNT_REQUEST_CAPCACHE;
471
472 if (!strcmp(attr->attr.name, NCACHE_KOBJ_ID))
473 new_op->upcall.req.perf_count.type =
474 ORANGEFS_PERF_COUNT_REQUEST_NCACHE;
475
476 } else {
477 gossip_err("sysfs_service_op_show: unknown kobj_id:%s:\n",
478 kobj->name);
479 rc = -EINVAL;
480 goto out;
481 }
482
483
484 if (strcmp(kobj->name, PC_KOBJ_ID))
485 ser_op_type = "orangefs_param";
486 else
487 ser_op_type = "orangefs_perf_count";
488
489 /*
490 * The service_operation will return an errno return code on
491 * error, and zero on success.
492 */
493 rc = service_operation(new_op, ser_op_type, ORANGEFS_OP_INTERRUPTIBLE);
494
495 out:
496 if (!rc) {
497 if (strcmp(kobj->name, PC_KOBJ_ID)) {
498 if (new_op->upcall.req.param.op ==
499 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE) {
500 rc = scnprintf(buf, PAGE_SIZE, "%d %d\n",
501 (int)new_op->downcall.resp.param.u.
502 value32[0],
503 (int)new_op->downcall.resp.param.u.
504 value32[1]);
505 } else {
506 rc = scnprintf(buf, PAGE_SIZE, "%d\n",
507 (int)new_op->downcall.resp.param.u.value64);
508 }
509 } else {
510 rc = scnprintf(
511 buf,
512 PAGE_SIZE,
513 "%s",
514 new_op->downcall.resp.perf_count.buffer);
515 }
516 }
517
518 op_release(new_op);
519
520 return rc;
521
522 }
523
524 /*
525 * pass attribute values back to userspace with a service operation.
526 *
527 * We have to do a memory allocation, an sscanf and a service operation.
528 * And we have to evaluate what the user entered, to make sure the
529 * value is within the range supported by the attribute. So, there's
530 * a lot of return code checking and mapping going on here.
531 *
532 * We want to return 1 if we think everything went OK, and
533 * EINVAL if not.
534 */
535 static ssize_t sysfs_service_op_store(struct kobject *kobj,
536 struct orangefs_attribute *attr, const char *buf, size_t count)
537 {
538 struct orangefs_kernel_op_s *new_op = NULL;
539 int val = 0;
540 int rc = 0;
541
542 gossip_debug(GOSSIP_SYSFS_DEBUG,
543 "sysfs_service_op_store: id:%s:\n",
544 kobj->name);
545
546 new_op = op_alloc(ORANGEFS_VFS_OP_PARAM);
547 if (!new_op)
548 return -EINVAL; /* sic */
549
550 /* Can't do a service_operation if the client is not running... */
551 rc = is_daemon_in_service();
552 if (rc) {
553 pr_info("%s: Client not running :%d:\n",
554 __func__,
555 is_daemon_in_service());
556 goto out;
557 }
558
559 /*
560 * The value we want to send back to userspace is in buf, unless this
561 * there are two parameters, which is specially handled below.
562 */
563 if (strcmp(kobj->name, ORANGEFS_KOBJ_ID) ||
564 strcmp(attr->attr.name, "readahead_count_size")) {
565 rc = kstrtoint(buf, 0, &val);
566 if (rc)
567 goto out;
568 }
569
570 new_op->upcall.req.param.type = ORANGEFS_PARAM_REQUEST_SET;
571
572 if (!strcmp(kobj->name, ORANGEFS_KOBJ_ID)) {
573 /* Drop unsupported requests first. */
574 if (!(orangefs_features & ORANGEFS_FEATURE_READAHEAD) &&
575 (!strcmp(attr->attr.name, "readahead_count") ||
576 !strcmp(attr->attr.name, "readahead_size") ||
577 !strcmp(attr->attr.name, "readahead_count_size") ||
578 !strcmp(attr->attr.name, "readahead_readcnt"))) {
579 rc = -EINVAL;
580 goto out;
581 }
582
583 if (!strcmp(attr->attr.name, "perf_history_size")) {
584 if (val > 0) {
585 new_op->upcall.req.param.op =
586 ORANGEFS_PARAM_REQUEST_OP_PERF_HISTORY_SIZE;
587 } else {
588 rc = 0;
589 goto out;
590 }
591 } else if (!strcmp(attr->attr.name,
592 "perf_time_interval_secs")) {
593 if (val > 0) {
594 new_op->upcall.req.param.op =
595 ORANGEFS_PARAM_REQUEST_OP_PERF_TIME_INTERVAL_SECS;
596 } else {
597 rc = 0;
598 goto out;
599 }
600 } else if (!strcmp(attr->attr.name,
601 "perf_counter_reset")) {
602 if ((val == 0) || (val == 1)) {
603 new_op->upcall.req.param.op =
604 ORANGEFS_PARAM_REQUEST_OP_PERF_RESET;
605 } else {
606 rc = 0;
607 goto out;
608 }
609 } else if (!strcmp(attr->attr.name,
610 "readahead_count")) {
611 if ((val >= 0)) {
612 new_op->upcall.req.param.op =
613 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT;
614 } else {
615 rc = 0;
616 goto out;
617 }
618 } else if (!strcmp(attr->attr.name,
619 "readahead_size")) {
620 if ((val >= 0)) {
621 new_op->upcall.req.param.op =
622 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_SIZE;
623 } else {
624 rc = 0;
625 goto out;
626 }
627 } else if (!strcmp(attr->attr.name,
628 "readahead_count_size")) {
629 int val1, val2;
630 rc = sscanf(buf, "%d %d", &val1, &val2);
631 if (rc < 2) {
632 rc = 0;
633 goto out;
634 }
635 if ((val1 >= 0) && (val2 >= 0)) {
636 new_op->upcall.req.param.op =
637 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE;
638 } else {
639 rc = 0;
640 goto out;
641 }
642 new_op->upcall.req.param.u.value32[0] = val1;
643 new_op->upcall.req.param.u.value32[1] = val2;
644 goto value_set;
645 } else if (!strcmp(attr->attr.name,
646 "readahead_readcnt")) {
647 if ((val >= 0)) {
648 new_op->upcall.req.param.op =
649 ORANGEFS_PARAM_REQUEST_OP_READAHEAD_READCNT;
650 } else {
651 rc = 0;
652 goto out;
653 }
654 }
655
656 } else if (!strcmp(kobj->name, ACACHE_KOBJ_ID)) {
657 if (!strcmp(attr->attr.name, "hard_limit")) {
658 if (val > -1) {
659 new_op->upcall.req.param.op =
660 ORANGEFS_PARAM_REQUEST_OP_ACACHE_HARD_LIMIT;
661 } else {
662 rc = 0;
663 goto out;
664 }
665 } else if (!strcmp(attr->attr.name, "soft_limit")) {
666 if (val > -1) {
667 new_op->upcall.req.param.op =
668 ORANGEFS_PARAM_REQUEST_OP_ACACHE_SOFT_LIMIT;
669 } else {
670 rc = 0;
671 goto out;
672 }
673 } else if (!strcmp(attr->attr.name,
674 "reclaim_percentage")) {
675 if ((val > -1) && (val < 101)) {
676 new_op->upcall.req.param.op =
677 ORANGEFS_PARAM_REQUEST_OP_ACACHE_RECLAIM_PERCENTAGE;
678 } else {
679 rc = 0;
680 goto out;
681 }
682 } else if (!strcmp(attr->attr.name, "timeout_msecs")) {
683 if (val > -1) {
684 new_op->upcall.req.param.op =
685 ORANGEFS_PARAM_REQUEST_OP_ACACHE_TIMEOUT_MSECS;
686 } else {
687 rc = 0;
688 goto out;
689 }
690 }
691
692 } else if (!strcmp(kobj->name, CAPCACHE_KOBJ_ID)) {
693 if (!strcmp(attr->attr.name, "hard_limit")) {
694 if (val > -1) {
695 new_op->upcall.req.param.op =
696 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_HARD_LIMIT;
697 } else {
698 rc = 0;
699 goto out;
700 }
701 } else if (!strcmp(attr->attr.name, "soft_limit")) {
702 if (val > -1) {
703 new_op->upcall.req.param.op =
704 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_SOFT_LIMIT;
705 } else {
706 rc = 0;
707 goto out;
708 }
709 } else if (!strcmp(attr->attr.name,
710 "reclaim_percentage")) {
711 if ((val > -1) && (val < 101)) {
712 new_op->upcall.req.param.op =
713 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_RECLAIM_PERCENTAGE;
714 } else {
715 rc = 0;
716 goto out;
717 }
718 } else if (!strcmp(attr->attr.name, "timeout_secs")) {
719 if (val > -1) {
720 new_op->upcall.req.param.op =
721 ORANGEFS_PARAM_REQUEST_OP_CAPCACHE_TIMEOUT_SECS;
722 } else {
723 rc = 0;
724 goto out;
725 }
726 }
727
728 } else if (!strcmp(kobj->name, CCACHE_KOBJ_ID)) {
729 if (!strcmp(attr->attr.name, "hard_limit")) {
730 if (val > -1) {
731 new_op->upcall.req.param.op =
732 ORANGEFS_PARAM_REQUEST_OP_CCACHE_HARD_LIMIT;
733 } else {
734 rc = 0;
735 goto out;
736 }
737 } else if (!strcmp(attr->attr.name, "soft_limit")) {
738 if (val > -1) {
739 new_op->upcall.req.param.op =
740 ORANGEFS_PARAM_REQUEST_OP_CCACHE_SOFT_LIMIT;
741 } else {
742 rc = 0;
743 goto out;
744 }
745 } else if (!strcmp(attr->attr.name,
746 "reclaim_percentage")) {
747 if ((val > -1) && (val < 101)) {
748 new_op->upcall.req.param.op =
749 ORANGEFS_PARAM_REQUEST_OP_CCACHE_RECLAIM_PERCENTAGE;
750 } else {
751 rc = 0;
752 goto out;
753 }
754 } else if (!strcmp(attr->attr.name, "timeout_secs")) {
755 if (val > -1) {
756 new_op->upcall.req.param.op =
757 ORANGEFS_PARAM_REQUEST_OP_CCACHE_TIMEOUT_SECS;
758 } else {
759 rc = 0;
760 goto out;
761 }
762 }
763
764 } else if (!strcmp(kobj->name, NCACHE_KOBJ_ID)) {
765 if (!strcmp(attr->attr.name, "hard_limit")) {
766 if (val > -1) {
767 new_op->upcall.req.param.op =
768 ORANGEFS_PARAM_REQUEST_OP_NCACHE_HARD_LIMIT;
769 } else {
770 rc = 0;
771 goto out;
772 }
773 } else if (!strcmp(attr->attr.name, "soft_limit")) {
774 if (val > -1) {
775 new_op->upcall.req.param.op =
776 ORANGEFS_PARAM_REQUEST_OP_NCACHE_SOFT_LIMIT;
777 } else {
778 rc = 0;
779 goto out;
780 }
781 } else if (!strcmp(attr->attr.name,
782 "reclaim_percentage")) {
783 if ((val > -1) && (val < 101)) {
784 new_op->upcall.req.param.op =
785 ORANGEFS_PARAM_REQUEST_OP_NCACHE_RECLAIM_PERCENTAGE;
786 } else {
787 rc = 0;
788 goto out;
789 }
790 } else if (!strcmp(attr->attr.name, "timeout_msecs")) {
791 if (val > -1) {
792 new_op->upcall.req.param.op =
793 ORANGEFS_PARAM_REQUEST_OP_NCACHE_TIMEOUT_MSECS;
794 } else {
795 rc = 0;
796 goto out;
797 }
798 }
799
800 } else {
801 gossip_err("sysfs_service_op_store: unknown kobj_id:%s:\n",
802 kobj->name);
803 rc = -EINVAL;
804 goto out;
805 }
806
807 new_op->upcall.req.param.u.value64 = val;
808 value_set:
809
810 /*
811 * The service_operation will return a errno return code on
812 * error, and zero on success.
813 */
814 rc = service_operation(new_op, "orangefs_param", ORANGEFS_OP_INTERRUPTIBLE);
815
816 if (rc < 0) {
817 gossip_err("sysfs_service_op_store: service op returned:%d:\n",
818 rc);
819 rc = 0;
820 } else {
821 rc = count;
822 }
823
824 out:
825 op_release(new_op);
826
827 if (rc == -ENOMEM || rc == 0)
828 rc = -EINVAL;
829
830 return rc;
831 }
832
833 static struct orangefs_attribute op_timeout_secs_attribute =
834 __ATTR(op_timeout_secs, 0664, sysfs_int_show, sysfs_int_store);
835
836 static struct orangefs_attribute slot_timeout_secs_attribute =
837 __ATTR(slot_timeout_secs, 0664, sysfs_int_show, sysfs_int_store);
838
839 static struct orangefs_attribute cache_timeout_msecs_attribute =
840 __ATTR(cache_timeout_msecs, 0664, sysfs_int_show, sysfs_int_store);
841
842 static struct orangefs_attribute dcache_timeout_msecs_attribute =
843 __ATTR(dcache_timeout_msecs, 0664, sysfs_int_show, sysfs_int_store);
844
845 static struct orangefs_attribute getattr_timeout_msecs_attribute =
846 __ATTR(getattr_timeout_msecs, 0664, sysfs_int_show, sysfs_int_store);
847
848 static struct orangefs_attribute readahead_count_attribute =
849 __ATTR(readahead_count, 0664, sysfs_service_op_show,
850 sysfs_service_op_store);
851
852 static struct orangefs_attribute readahead_size_attribute =
853 __ATTR(readahead_size, 0664, sysfs_service_op_show,
854 sysfs_service_op_store);
855
856 static struct orangefs_attribute readahead_count_size_attribute =
857 __ATTR(readahead_count_size, 0664, sysfs_service_op_show,
858 sysfs_service_op_store);
859
860 static struct orangefs_attribute readahead_readcnt_attribute =
861 __ATTR(readahead_readcnt, 0664, sysfs_service_op_show,
862 sysfs_service_op_store);
863
864 static struct orangefs_attribute perf_counter_reset_attribute =
865 __ATTR(perf_counter_reset,
866 0664,
867 sysfs_service_op_show,
868 sysfs_service_op_store);
869
870 static struct orangefs_attribute perf_history_size_attribute =
871 __ATTR(perf_history_size,
872 0664,
873 sysfs_service_op_show,
874 sysfs_service_op_store);
875
876 static struct orangefs_attribute perf_time_interval_secs_attribute =
877 __ATTR(perf_time_interval_secs,
878 0664,
879 sysfs_service_op_show,
880 sysfs_service_op_store);
881
882 static struct attribute *orangefs_default_attrs[] = {
883 &op_timeout_secs_attribute.attr,
884 &slot_timeout_secs_attribute.attr,
885 &cache_timeout_msecs_attribute.attr,
886 &dcache_timeout_msecs_attribute.attr,
887 &getattr_timeout_msecs_attribute.attr,
888 &readahead_count_attribute.attr,
889 &readahead_size_attribute.attr,
890 &readahead_count_size_attribute.attr,
891 &readahead_readcnt_attribute.attr,
892 &perf_counter_reset_attribute.attr,
893 &perf_history_size_attribute.attr,
894 &perf_time_interval_secs_attribute.attr,
895 NULL,
896 };
897
898 static struct kobj_type orangefs_ktype = {
899 .sysfs_ops = &orangefs_sysfs_ops,
900 .default_attrs = orangefs_default_attrs,
901 };
902
903 static struct orangefs_attribute acache_hard_limit_attribute =
904 __ATTR(hard_limit,
905 0664,
906 sysfs_service_op_show,
907 sysfs_service_op_store);
908
909 static struct orangefs_attribute acache_reclaim_percent_attribute =
910 __ATTR(reclaim_percentage,
911 0664,
912 sysfs_service_op_show,
913 sysfs_service_op_store);
914
915 static struct orangefs_attribute acache_soft_limit_attribute =
916 __ATTR(soft_limit,
917 0664,
918 sysfs_service_op_show,
919 sysfs_service_op_store);
920
921 static struct orangefs_attribute acache_timeout_msecs_attribute =
922 __ATTR(timeout_msecs,
923 0664,
924 sysfs_service_op_show,
925 sysfs_service_op_store);
926
927 static struct attribute *acache_orangefs_default_attrs[] = {
928 &acache_hard_limit_attribute.attr,
929 &acache_reclaim_percent_attribute.attr,
930 &acache_soft_limit_attribute.attr,
931 &acache_timeout_msecs_attribute.attr,
932 NULL,
933 };
934
935 static struct kobj_type acache_orangefs_ktype = {
936 .sysfs_ops = &orangefs_sysfs_ops,
937 .default_attrs = acache_orangefs_default_attrs,
938 };
939
940 static struct orangefs_attribute capcache_hard_limit_attribute =
941 __ATTR(hard_limit,
942 0664,
943 sysfs_service_op_show,
944 sysfs_service_op_store);
945
946 static struct orangefs_attribute capcache_reclaim_percent_attribute =
947 __ATTR(reclaim_percentage,
948 0664,
949 sysfs_service_op_show,
950 sysfs_service_op_store);
951
952 static struct orangefs_attribute capcache_soft_limit_attribute =
953 __ATTR(soft_limit,
954 0664,
955 sysfs_service_op_show,
956 sysfs_service_op_store);
957
958 static struct orangefs_attribute capcache_timeout_secs_attribute =
959 __ATTR(timeout_secs,
960 0664,
961 sysfs_service_op_show,
962 sysfs_service_op_store);
963
964 static struct attribute *capcache_orangefs_default_attrs[] = {
965 &capcache_hard_limit_attribute.attr,
966 &capcache_reclaim_percent_attribute.attr,
967 &capcache_soft_limit_attribute.attr,
968 &capcache_timeout_secs_attribute.attr,
969 NULL,
970 };
971
972 static struct kobj_type capcache_orangefs_ktype = {
973 .sysfs_ops = &orangefs_sysfs_ops,
974 .default_attrs = capcache_orangefs_default_attrs,
975 };
976
977 static struct orangefs_attribute ccache_hard_limit_attribute =
978 __ATTR(hard_limit,
979 0664,
980 sysfs_service_op_show,
981 sysfs_service_op_store);
982
983 static struct orangefs_attribute ccache_reclaim_percent_attribute =
984 __ATTR(reclaim_percentage,
985 0664,
986 sysfs_service_op_show,
987 sysfs_service_op_store);
988
989 static struct orangefs_attribute ccache_soft_limit_attribute =
990 __ATTR(soft_limit,
991 0664,
992 sysfs_service_op_show,
993 sysfs_service_op_store);
994
995 static struct orangefs_attribute ccache_timeout_secs_attribute =
996 __ATTR(timeout_secs,
997 0664,
998 sysfs_service_op_show,
999 sysfs_service_op_store);
1000
1001 static struct attribute *ccache_orangefs_default_attrs[] = {
1002 &ccache_hard_limit_attribute.attr,
1003 &ccache_reclaim_percent_attribute.attr,
1004 &ccache_soft_limit_attribute.attr,
1005 &ccache_timeout_secs_attribute.attr,
1006 NULL,
1007 };
1008
1009 static struct kobj_type ccache_orangefs_ktype = {
1010 .sysfs_ops = &orangefs_sysfs_ops,
1011 .default_attrs = ccache_orangefs_default_attrs,
1012 };
1013
1014 static struct orangefs_attribute ncache_hard_limit_attribute =
1015 __ATTR(hard_limit,
1016 0664,
1017 sysfs_service_op_show,
1018 sysfs_service_op_store);
1019
1020 static struct orangefs_attribute ncache_reclaim_percent_attribute =
1021 __ATTR(reclaim_percentage,
1022 0664,
1023 sysfs_service_op_show,
1024 sysfs_service_op_store);
1025
1026 static struct orangefs_attribute ncache_soft_limit_attribute =
1027 __ATTR(soft_limit,
1028 0664,
1029 sysfs_service_op_show,
1030 sysfs_service_op_store);
1031
1032 static struct orangefs_attribute ncache_timeout_msecs_attribute =
1033 __ATTR(timeout_msecs,
1034 0664,
1035 sysfs_service_op_show,
1036 sysfs_service_op_store);
1037
1038 static struct attribute *ncache_orangefs_default_attrs[] = {
1039 &ncache_hard_limit_attribute.attr,
1040 &ncache_reclaim_percent_attribute.attr,
1041 &ncache_soft_limit_attribute.attr,
1042 &ncache_timeout_msecs_attribute.attr,
1043 NULL,
1044 };
1045
1046 static struct kobj_type ncache_orangefs_ktype = {
1047 .sysfs_ops = &orangefs_sysfs_ops,
1048 .default_attrs = ncache_orangefs_default_attrs,
1049 };
1050
1051 static struct orangefs_attribute pc_acache_attribute =
1052 __ATTR(acache,
1053 0664,
1054 sysfs_service_op_show,
1055 NULL);
1056
1057 static struct orangefs_attribute pc_capcache_attribute =
1058 __ATTR(capcache,
1059 0664,
1060 sysfs_service_op_show,
1061 NULL);
1062
1063 static struct orangefs_attribute pc_ncache_attribute =
1064 __ATTR(ncache,
1065 0664,
1066 sysfs_service_op_show,
1067 NULL);
1068
1069 static struct attribute *pc_orangefs_default_attrs[] = {
1070 &pc_acache_attribute.attr,
1071 &pc_capcache_attribute.attr,
1072 &pc_ncache_attribute.attr,
1073 NULL,
1074 };
1075
1076 static struct kobj_type pc_orangefs_ktype = {
1077 .sysfs_ops = &orangefs_sysfs_ops,
1078 .default_attrs = pc_orangefs_default_attrs,
1079 };
1080
1081 static struct orangefs_attribute stats_reads_attribute =
1082 __ATTR(reads,
1083 0664,
1084 sysfs_int_show,
1085 NULL);
1086
1087 static struct orangefs_attribute stats_writes_attribute =
1088 __ATTR(writes,
1089 0664,
1090 sysfs_int_show,
1091 NULL);
1092
1093 static struct attribute *stats_orangefs_default_attrs[] = {
1094 &stats_reads_attribute.attr,
1095 &stats_writes_attribute.attr,
1096 NULL,
1097 };
1098
1099 static struct kobj_type stats_orangefs_ktype = {
1100 .sysfs_ops = &orangefs_sysfs_ops,
1101 .default_attrs = stats_orangefs_default_attrs,
1102 };
1103
1104 static struct kobject *orangefs_obj;
1105 static struct kobject *acache_orangefs_obj;
1106 static struct kobject *capcache_orangefs_obj;
1107 static struct kobject *ccache_orangefs_obj;
1108 static struct kobject *ncache_orangefs_obj;
1109 static struct kobject *pc_orangefs_obj;
1110 static struct kobject *stats_orangefs_obj;
1111
1112 int orangefs_sysfs_init(void)
1113 {
1114 int rc = -EINVAL;
1115
1116 gossip_debug(GOSSIP_SYSFS_DEBUG, "orangefs_sysfs_init: start\n");
1117
1118 /* create /sys/fs/orangefs. */
1119 orangefs_obj = kzalloc(sizeof(*orangefs_obj), GFP_KERNEL);
1120 if (!orangefs_obj)
1121 goto out;
1122
1123 rc = kobject_init_and_add(orangefs_obj,
1124 &orangefs_ktype,
1125 fs_kobj,
1126 ORANGEFS_KOBJ_ID);
1127
1128 if (rc)
1129 goto ofs_obj_bail;
1130
1131 kobject_uevent(orangefs_obj, KOBJ_ADD);
1132
1133 /* create /sys/fs/orangefs/acache. */
1134 acache_orangefs_obj = kzalloc(sizeof(*acache_orangefs_obj), GFP_KERNEL);
1135 if (!acache_orangefs_obj) {
1136 rc = -EINVAL;
1137 goto ofs_obj_bail;
1138 }
1139
1140 rc = kobject_init_and_add(acache_orangefs_obj,
1141 &acache_orangefs_ktype,
1142 orangefs_obj,
1143 ACACHE_KOBJ_ID);
1144
1145 if (rc)
1146 goto acache_obj_bail;
1147
1148 kobject_uevent(acache_orangefs_obj, KOBJ_ADD);
1149
1150 /* create /sys/fs/orangefs/capcache. */
1151 capcache_orangefs_obj =
1152 kzalloc(sizeof(*capcache_orangefs_obj), GFP_KERNEL);
1153 if (!capcache_orangefs_obj) {
1154 rc = -EINVAL;
1155 goto acache_obj_bail;
1156 }
1157
1158 rc = kobject_init_and_add(capcache_orangefs_obj,
1159 &capcache_orangefs_ktype,
1160 orangefs_obj,
1161 CAPCACHE_KOBJ_ID);
1162 if (rc)
1163 goto capcache_obj_bail;
1164
1165 kobject_uevent(capcache_orangefs_obj, KOBJ_ADD);
1166
1167 /* create /sys/fs/orangefs/ccache. */
1168 ccache_orangefs_obj =
1169 kzalloc(sizeof(*ccache_orangefs_obj), GFP_KERNEL);
1170 if (!ccache_orangefs_obj) {
1171 rc = -EINVAL;
1172 goto capcache_obj_bail;
1173 }
1174
1175 rc = kobject_init_and_add(ccache_orangefs_obj,
1176 &ccache_orangefs_ktype,
1177 orangefs_obj,
1178 CCACHE_KOBJ_ID);
1179 if (rc)
1180 goto ccache_obj_bail;
1181
1182 kobject_uevent(ccache_orangefs_obj, KOBJ_ADD);
1183
1184 /* create /sys/fs/orangefs/ncache. */
1185 ncache_orangefs_obj = kzalloc(sizeof(*ncache_orangefs_obj), GFP_KERNEL);
1186 if (!ncache_orangefs_obj) {
1187 rc = -EINVAL;
1188 goto ccache_obj_bail;
1189 }
1190
1191 rc = kobject_init_and_add(ncache_orangefs_obj,
1192 &ncache_orangefs_ktype,
1193 orangefs_obj,
1194 NCACHE_KOBJ_ID);
1195
1196 if (rc)
1197 goto ncache_obj_bail;
1198
1199 kobject_uevent(ncache_orangefs_obj, KOBJ_ADD);
1200
1201 /* create /sys/fs/orangefs/perf_counters. */
1202 pc_orangefs_obj = kzalloc(sizeof(*pc_orangefs_obj), GFP_KERNEL);
1203 if (!pc_orangefs_obj) {
1204 rc = -EINVAL;
1205 goto ncache_obj_bail;
1206 }
1207
1208 rc = kobject_init_and_add(pc_orangefs_obj,
1209 &pc_orangefs_ktype,
1210 orangefs_obj,
1211 "perf_counters");
1212
1213 if (rc)
1214 goto pc_obj_bail;
1215
1216 kobject_uevent(pc_orangefs_obj, KOBJ_ADD);
1217
1218 /* create /sys/fs/orangefs/stats. */
1219 stats_orangefs_obj = kzalloc(sizeof(*stats_orangefs_obj), GFP_KERNEL);
1220 if (!stats_orangefs_obj) {
1221 rc = -EINVAL;
1222 goto pc_obj_bail;
1223 }
1224
1225 rc = kobject_init_and_add(stats_orangefs_obj,
1226 &stats_orangefs_ktype,
1227 orangefs_obj,
1228 STATS_KOBJ_ID);
1229
1230 if (rc)
1231 goto stats_obj_bail;
1232
1233 kobject_uevent(stats_orangefs_obj, KOBJ_ADD);
1234 goto out;
1235
1236 stats_obj_bail:
1237 kobject_put(stats_orangefs_obj);
1238 pc_obj_bail:
1239 kobject_put(pc_orangefs_obj);
1240 ncache_obj_bail:
1241 kobject_put(ncache_orangefs_obj);
1242 ccache_obj_bail:
1243 kobject_put(ccache_orangefs_obj);
1244 capcache_obj_bail:
1245 kobject_put(capcache_orangefs_obj);
1246 acache_obj_bail:
1247 kobject_put(acache_orangefs_obj);
1248 ofs_obj_bail:
1249 kobject_put(orangefs_obj);
1250 out:
1251 return rc;
1252 }
1253
1254 void orangefs_sysfs_exit(void)
1255 {
1256 gossip_debug(GOSSIP_SYSFS_DEBUG, "orangefs_sysfs_exit: start\n");
1257 kobject_put(acache_orangefs_obj);
1258 kobject_put(capcache_orangefs_obj);
1259 kobject_put(ccache_orangefs_obj);
1260 kobject_put(ncache_orangefs_obj);
1261 kobject_put(pc_orangefs_obj);
1262 kobject_put(stats_orangefs_obj);
1263 kobject_put(orangefs_obj);
1264 }
Linux with added FPC-III support