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716154c5 BB |
1 | /*****************************************************************************\ |
2 | * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. | |
3 | * Copyright (C) 2007 The Regents of the University of California. | |
4 | * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). | |
5 | * Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
715f6251 | 6 | * UCRL-CODE-235197 |
7 | * | |
716154c5 | 8 | * This file is part of the SPL, Solaris Porting Layer. |
3d6af2dd | 9 | * For details, see <http://zfsonlinux.org/>. |
716154c5 BB |
10 | * |
11 | * The SPL is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the | |
13 | * Free Software Foundation; either version 2 of the License, or (at your | |
14 | * option) any later version. | |
715f6251 | 15 | * |
716154c5 | 16 | * The SPL is distributed in the hope that it will be useful, but WITHOUT |
715f6251 | 17 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
18 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
19 | * for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License along | |
716154c5 BB |
22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. |
23 | ***************************************************************************** | |
24 | * Solaris Porting Layer (SPL) Kstat Implementation. | |
25 | \*****************************************************************************/ | |
715f6251 | 26 | |
ae4c36ad | 27 | #include <linux/seq_file.h> |
55abb092 BB |
28 | #include <sys/kstat.h> |
29 | #include <spl-debug.h> | |
04a479f7 | 30 | |
b17edc10 BB |
31 | #ifdef SS_DEBUG_SUBSYS |
32 | #undef SS_DEBUG_SUBSYS | |
33 | #endif | |
34 | ||
35 | #define SS_DEBUG_SUBSYS SS_KSTAT | |
36 | ||
04a479f7 | 37 | static spinlock_t kstat_lock; |
38 | static struct list_head kstat_list; | |
39 | static kid_t kstat_id; | |
40 | ||
41 | static void | |
42 | kstat_seq_show_headers(struct seq_file *f) | |
43 | { | |
44 | kstat_t *ksp = (kstat_t *)f->private; | |
45 | ASSERT(ksp->ks_magic == KS_MAGIC); | |
46 | ||
47 | seq_printf(f, "%d %d 0x%02x %d %d %lld %lld\n", | |
48 | ksp->ks_kid, ksp->ks_type, ksp->ks_flags, | |
49 | ksp->ks_ndata, (int)ksp->ks_data_size, | |
50 | ksp->ks_crtime, ksp->ks_snaptime); | |
51 | ||
52 | switch (ksp->ks_type) { | |
53 | case KSTAT_TYPE_RAW: | |
54 | seq_printf(f, "raw data"); | |
55 | break; | |
56 | case KSTAT_TYPE_NAMED: | |
57 | seq_printf(f, "%-31s %-4s %s\n", | |
58 | "name", "type", "data"); | |
59 | break; | |
60 | case KSTAT_TYPE_INTR: | |
61 | seq_printf(f, "%-8s %-8s %-8s %-8s %-8s\n", | |
62 | "hard", "soft", "watchdog", | |
63 | "spurious", "multsvc"); | |
64 | break; | |
65 | case KSTAT_TYPE_IO: | |
66 | seq_printf(f, | |
67 | "%-8s %-8s %-8s %-8s %-8s %-8s " | |
68 | "%-8s %-8s %-8s %-8s %-8s %-8s\n", | |
69 | "nread", "nwritten", "reads", "writes", | |
70 | "wtime", "wlentime", "wupdate", | |
71 | "rtime", "rlentime", "rupdate", | |
72 | "wcnt", "rcnt"); | |
73 | break; | |
74 | case KSTAT_TYPE_TIMER: | |
75 | seq_printf(f, | |
76 | "%-31s %-8s " | |
77 | "%-8s %-8s %-8s %-8s %-8s\n", | |
78 | "name", "events", "elapsed", | |
79 | "min", "max", "start", "stop"); | |
80 | break; | |
dba79fcb BB |
81 | case KSTAT_TYPE_TXG: |
82 | seq_printf(f, | |
83 | "%-8s %-5s %-13s %-12s %-12s %-8s %-8s " | |
84 | "%-12s %-12s %-12s\n", | |
85 | "txg", "state", "birth", | |
86 | "nread", "nwritten", "reads", "writes", | |
87 | "otime", "qtime", "stime"); | |
88 | break; | |
04a479f7 | 89 | default: |
55abb092 | 90 | PANIC("Undefined kstat type %d\n", ksp->ks_type); |
04a479f7 | 91 | } |
92 | } | |
93 | ||
94 | static int | |
95 | kstat_seq_show_raw(struct seq_file *f, unsigned char *p, int l) | |
96 | { | |
97 | int i, j; | |
98 | ||
99 | for (i = 0; ; i++) { | |
100 | seq_printf(f, "%03x:", i); | |
101 | ||
102 | for (j = 0; j < 16; j++) { | |
103 | if (i * 16 + j >= l) { | |
104 | seq_printf(f, "\n"); | |
105 | goto out; | |
106 | } | |
107 | ||
108 | seq_printf(f, " %02x", (unsigned char)p[i * 16 + j]); | |
109 | } | |
110 | seq_printf(f, "\n"); | |
111 | } | |
112 | out: | |
113 | return 0; | |
114 | } | |
115 | ||
116 | static int | |
117 | kstat_seq_show_named(struct seq_file *f, kstat_named_t *knp) | |
118 | { | |
119 | seq_printf(f, "%-31s %-4d ", knp->name, knp->data_type); | |
120 | ||
121 | switch (knp->data_type) { | |
122 | case KSTAT_DATA_CHAR: | |
123 | knp->value.c[15] = '\0'; /* NULL terminate */ | |
124 | seq_printf(f, "%-16s", knp->value.c); | |
125 | break; | |
126 | /* XXX - We need to be more careful able what tokens are | |
127 | * used for each arch, for now this is correct for x86_64. | |
128 | */ | |
129 | case KSTAT_DATA_INT32: | |
130 | seq_printf(f, "%d", knp->value.i32); | |
131 | break; | |
132 | case KSTAT_DATA_UINT32: | |
133 | seq_printf(f, "%u", knp->value.ui32); | |
134 | break; | |
135 | case KSTAT_DATA_INT64: | |
cfe57499 | 136 | seq_printf(f, "%lld", (signed long long)knp->value.i64); |
04a479f7 | 137 | break; |
138 | case KSTAT_DATA_UINT64: | |
cfe57499 | 139 | seq_printf(f, "%llu", (unsigned long long)knp->value.ui64); |
04a479f7 | 140 | break; |
141 | case KSTAT_DATA_LONG: | |
142 | seq_printf(f, "%ld", knp->value.l); | |
143 | break; | |
144 | case KSTAT_DATA_ULONG: | |
cfe57499 | 145 | seq_printf(f, "%lu", knp->value.ul); |
04a479f7 | 146 | break; |
147 | case KSTAT_DATA_STRING: | |
148 | KSTAT_NAMED_STR_PTR(knp) | |
149 | [KSTAT_NAMED_STR_BUFLEN(knp)-1] = '\0'; | |
150 | seq_printf(f, "%s", KSTAT_NAMED_STR_PTR(knp)); | |
151 | break; | |
152 | default: | |
55abb092 | 153 | PANIC("Undefined kstat data type %d\n", knp->data_type); |
04a479f7 | 154 | } |
155 | ||
156 | seq_printf(f, "\n"); | |
157 | ||
158 | return 0; | |
159 | } | |
160 | ||
161 | static int | |
162 | kstat_seq_show_intr(struct seq_file *f, kstat_intr_t *kip) | |
163 | { | |
164 | seq_printf(f, "%-8u %-8u %-8u %-8u %-8u\n", | |
165 | kip->intrs[KSTAT_INTR_HARD], | |
166 | kip->intrs[KSTAT_INTR_SOFT], | |
167 | kip->intrs[KSTAT_INTR_WATCHDOG], | |
168 | kip->intrs[KSTAT_INTR_SPURIOUS], | |
169 | kip->intrs[KSTAT_INTR_MULTSVC]); | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
174 | static int | |
175 | kstat_seq_show_io(struct seq_file *f, kstat_io_t *kip) | |
176 | { | |
177 | seq_printf(f, | |
178 | "%-8llu %-8llu %-8u %-8u %-8lld %-8lld " | |
179 | "%-8lld %-8lld %-8lld %-8lld %-8u %-8u\n", | |
180 | kip->nread, kip->nwritten, | |
181 | kip->reads, kip->writes, | |
182 | kip->wtime, kip->wlentime, kip->wlastupdate, | |
183 | kip->rtime, kip->wlentime, kip->rlastupdate, | |
184 | kip->wcnt, kip->rcnt); | |
185 | ||
186 | return 0; | |
187 | } | |
188 | ||
189 | static int | |
190 | kstat_seq_show_timer(struct seq_file *f, kstat_timer_t *ktp) | |
191 | { | |
192 | seq_printf(f, | |
193 | "%-31s %-8llu %-8lld %-8lld %-8lld %-8lld %-8lld\n", | |
194 | ktp->name, ktp->num_events, ktp->elapsed_time, | |
195 | ktp->min_time, ktp->max_time, | |
196 | ktp->start_time, ktp->stop_time); | |
197 | ||
198 | return 0; | |
199 | } | |
200 | ||
dba79fcb BB |
201 | static int |
202 | kstat_seq_show_txg(struct seq_file *f, kstat_txg_t *ktp) | |
203 | { | |
204 | char state; | |
205 | ||
206 | switch (ktp->state) { | |
207 | case TXG_STATE_OPEN: state = 'O'; break; | |
208 | case TXG_STATE_QUIESCING: state = 'Q'; break; | |
209 | case TXG_STATE_SYNCING: state = 'S'; break; | |
210 | case TXG_STATE_COMMITTED: state = 'C'; break; | |
211 | default: state = '?'; break; | |
212 | } | |
213 | ||
214 | seq_printf(f, | |
215 | "%-8llu %-5c %-13llu %-12llu %-12llu %-8u %-8u " | |
216 | "%12lld %12lld %12lld\n", ktp->txg, state, ktp->birth, | |
217 | ktp->nread, ktp->nwritten, ktp->reads, ktp->writes, | |
218 | ktp->open_time, ktp->quiesce_time, ktp->sync_time); | |
219 | return 0; | |
220 | } | |
221 | ||
04a479f7 | 222 | static int |
223 | kstat_seq_show(struct seq_file *f, void *p) | |
224 | { | |
225 | kstat_t *ksp = (kstat_t *)f->private; | |
226 | int rc = 0; | |
227 | ||
228 | ASSERT(ksp->ks_magic == KS_MAGIC); | |
229 | ||
230 | switch (ksp->ks_type) { | |
231 | case KSTAT_TYPE_RAW: | |
232 | ASSERT(ksp->ks_ndata == 1); | |
233 | rc = kstat_seq_show_raw(f, ksp->ks_data, | |
234 | ksp->ks_data_size); | |
235 | break; | |
236 | case KSTAT_TYPE_NAMED: | |
237 | rc = kstat_seq_show_named(f, (kstat_named_t *)p); | |
238 | break; | |
239 | case KSTAT_TYPE_INTR: | |
240 | rc = kstat_seq_show_intr(f, (kstat_intr_t *)p); | |
241 | break; | |
242 | case KSTAT_TYPE_IO: | |
243 | rc = kstat_seq_show_io(f, (kstat_io_t *)p); | |
244 | break; | |
245 | case KSTAT_TYPE_TIMER: | |
246 | rc = kstat_seq_show_timer(f, (kstat_timer_t *)p); | |
247 | break; | |
dba79fcb BB |
248 | case KSTAT_TYPE_TXG: |
249 | rc = kstat_seq_show_txg(f, (kstat_txg_t *)p); | |
250 | break; | |
04a479f7 | 251 | default: |
55abb092 | 252 | PANIC("Undefined kstat type %d\n", ksp->ks_type); |
04a479f7 | 253 | } |
254 | ||
255 | return rc; | |
256 | } | |
257 | ||
9a8b7a74 BB |
258 | int |
259 | kstat_default_update(kstat_t *ksp, int rw) | |
260 | { | |
261 | ASSERT(ksp != NULL); | |
262 | return 0; | |
263 | } | |
264 | ||
04a479f7 | 265 | static void * |
266 | kstat_seq_data_addr(kstat_t *ksp, loff_t n) | |
267 | { | |
268 | void *rc = NULL; | |
b17edc10 | 269 | SENTRY; |
04a479f7 | 270 | |
271 | switch (ksp->ks_type) { | |
272 | case KSTAT_TYPE_RAW: | |
273 | rc = ksp->ks_data; | |
274 | break; | |
275 | case KSTAT_TYPE_NAMED: | |
276 | rc = ksp->ks_data + n * sizeof(kstat_named_t); | |
277 | break; | |
278 | case KSTAT_TYPE_INTR: | |
279 | rc = ksp->ks_data + n * sizeof(kstat_intr_t); | |
280 | break; | |
281 | case KSTAT_TYPE_IO: | |
282 | rc = ksp->ks_data + n * sizeof(kstat_io_t); | |
283 | break; | |
284 | case KSTAT_TYPE_TIMER: | |
285 | rc = ksp->ks_data + n * sizeof(kstat_timer_t); | |
286 | break; | |
dba79fcb BB |
287 | case KSTAT_TYPE_TXG: |
288 | rc = ksp->ks_data + n * sizeof(kstat_txg_t); | |
289 | break; | |
04a479f7 | 290 | default: |
55abb092 | 291 | PANIC("Undefined kstat type %d\n", ksp->ks_type); |
04a479f7 | 292 | } |
293 | ||
b17edc10 | 294 | SRETURN(rc); |
04a479f7 | 295 | } |
296 | ||
297 | static void * | |
298 | kstat_seq_start(struct seq_file *f, loff_t *pos) | |
299 | { | |
300 | loff_t n = *pos; | |
301 | kstat_t *ksp = (kstat_t *)f->private; | |
302 | ASSERT(ksp->ks_magic == KS_MAGIC); | |
b17edc10 | 303 | SENTRY; |
04a479f7 | 304 | |
71c9f0b0 BB |
305 | mutex_enter(&ksp->ks_lock); |
306 | ||
9a8b7a74 BB |
307 | /* Dynamically update kstat, on error existing kstats are used */ |
308 | (void) ksp->ks_update(ksp, KSTAT_READ); | |
309 | ||
04a479f7 | 310 | ksp->ks_snaptime = gethrtime(); |
311 | ||
312 | if (!n) | |
313 | kstat_seq_show_headers(f); | |
314 | ||
315 | if (n >= ksp->ks_ndata) | |
b17edc10 | 316 | SRETURN(NULL); |
04a479f7 | 317 | |
b17edc10 | 318 | SRETURN(kstat_seq_data_addr(ksp, n)); |
04a479f7 | 319 | } |
320 | ||
321 | static void * | |
322 | kstat_seq_next(struct seq_file *f, void *p, loff_t *pos) | |
323 | { | |
324 | kstat_t *ksp = (kstat_t *)f->private; | |
325 | ASSERT(ksp->ks_magic == KS_MAGIC); | |
b17edc10 | 326 | SENTRY; |
04a479f7 | 327 | |
328 | ++*pos; | |
329 | if (*pos >= ksp->ks_ndata) | |
b17edc10 | 330 | SRETURN(NULL); |
04a479f7 | 331 | |
b17edc10 | 332 | SRETURN(kstat_seq_data_addr(ksp, *pos)); |
04a479f7 | 333 | } |
334 | ||
335 | static void | |
336 | kstat_seq_stop(struct seq_file *f, void *v) | |
337 | { | |
338 | kstat_t *ksp = (kstat_t *)f->private; | |
339 | ASSERT(ksp->ks_magic == KS_MAGIC); | |
340 | ||
71c9f0b0 | 341 | mutex_exit(&ksp->ks_lock); |
04a479f7 | 342 | } |
343 | ||
344 | static struct seq_operations kstat_seq_ops = { | |
345 | .show = kstat_seq_show, | |
346 | .start = kstat_seq_start, | |
347 | .next = kstat_seq_next, | |
348 | .stop = kstat_seq_stop, | |
349 | }; | |
350 | ||
351 | static int | |
352 | proc_kstat_open(struct inode *inode, struct file *filp) | |
353 | { | |
354 | struct seq_file *f; | |
355 | int rc; | |
356 | ||
357 | rc = seq_open(filp, &kstat_seq_ops); | |
358 | if (rc) | |
359 | return rc; | |
360 | ||
361 | f = filp->private_data; | |
362 | f->private = PDE(inode)->data; | |
363 | ||
364 | return rc; | |
365 | } | |
366 | ||
367 | static struct file_operations proc_kstat_operations = { | |
368 | .open = proc_kstat_open, | |
369 | .read = seq_read, | |
370 | .llseek = seq_lseek, | |
371 | .release = seq_release, | |
372 | }; | |
373 | ||
374 | kstat_t * | |
375 | __kstat_create(const char *ks_module, int ks_instance, const char *ks_name, | |
376 | const char *ks_class, uchar_t ks_type, uint_t ks_ndata, | |
377 | uchar_t ks_flags) | |
378 | { | |
379 | kstat_t *ksp; | |
380 | ||
381 | ASSERT(ks_module); | |
382 | ASSERT(ks_instance == 0); | |
383 | ASSERT(ks_name); | |
384 | ASSERT(!(ks_flags & KSTAT_FLAG_UNSUPPORTED)); | |
385 | ||
386 | if ((ks_type == KSTAT_TYPE_INTR) || (ks_type == KSTAT_TYPE_IO)) | |
387 | ASSERT(ks_ndata == 1); | |
388 | ||
389 | ksp = kmem_zalloc(sizeof(*ksp), KM_SLEEP); | |
390 | if (ksp == NULL) | |
391 | return ksp; | |
392 | ||
393 | spin_lock(&kstat_lock); | |
394 | ksp->ks_kid = kstat_id; | |
395 | kstat_id++; | |
396 | spin_unlock(&kstat_lock); | |
397 | ||
398 | ksp->ks_magic = KS_MAGIC; | |
71c9f0b0 | 399 | mutex_init(&ksp->ks_lock, NULL, MUTEX_DEFAULT, NULL); |
04a479f7 | 400 | INIT_LIST_HEAD(&ksp->ks_list); |
401 | ||
402 | ksp->ks_crtime = gethrtime(); | |
403 | ksp->ks_snaptime = ksp->ks_crtime; | |
404 | strncpy(ksp->ks_module, ks_module, KSTAT_STRLEN); | |
405 | ksp->ks_instance = ks_instance; | |
406 | strncpy(ksp->ks_name, ks_name, KSTAT_STRLEN); | |
407 | strncpy(ksp->ks_class, ks_class, KSTAT_STRLEN); | |
408 | ksp->ks_type = ks_type; | |
409 | ksp->ks_flags = ks_flags; | |
9a8b7a74 BB |
410 | ksp->ks_update = kstat_default_update; |
411 | ksp->ks_private = NULL; | |
04a479f7 | 412 | |
413 | switch (ksp->ks_type) { | |
414 | case KSTAT_TYPE_RAW: | |
415 | ksp->ks_ndata = 1; | |
416 | ksp->ks_data_size = ks_ndata; | |
417 | break; | |
418 | case KSTAT_TYPE_NAMED: | |
419 | ksp->ks_ndata = ks_ndata; | |
420 | ksp->ks_data_size = ks_ndata * sizeof(kstat_named_t); | |
421 | break; | |
422 | case KSTAT_TYPE_INTR: | |
423 | ksp->ks_ndata = ks_ndata; | |
424 | ksp->ks_data_size = ks_ndata * sizeof(kstat_intr_t); | |
425 | break; | |
426 | case KSTAT_TYPE_IO: | |
427 | ksp->ks_ndata = ks_ndata; | |
428 | ksp->ks_data_size = ks_ndata * sizeof(kstat_io_t); | |
429 | break; | |
430 | case KSTAT_TYPE_TIMER: | |
431 | ksp->ks_ndata = ks_ndata; | |
432 | ksp->ks_data_size = ks_ndata * sizeof(kstat_timer_t); | |
433 | break; | |
dba79fcb BB |
434 | case KSTAT_TYPE_TXG: |
435 | ksp->ks_ndata = ks_ndata; | |
436 | ksp->ks_data_size = ks_ndata * sizeof(kstat_timer_t); | |
437 | break; | |
04a479f7 | 438 | default: |
55abb092 | 439 | PANIC("Undefined kstat type %d\n", ksp->ks_type); |
04a479f7 | 440 | } |
441 | ||
442 | if (ksp->ks_flags & KSTAT_FLAG_VIRTUAL) { | |
443 | ksp->ks_data = NULL; | |
444 | } else { | |
445 | ksp->ks_data = kmem_alloc(ksp->ks_data_size, KM_SLEEP); | |
446 | if (ksp->ks_data == NULL) { | |
447 | kmem_free(ksp, sizeof(*ksp)); | |
448 | ksp = NULL; | |
449 | } | |
450 | } | |
451 | ||
452 | return ksp; | |
453 | } | |
454 | EXPORT_SYMBOL(__kstat_create); | |
455 | ||
456 | void | |
457 | __kstat_install(kstat_t *ksp) | |
458 | { | |
459 | struct proc_dir_entry *de_module, *de_name; | |
460 | kstat_t *tmp; | |
461 | int rc = 0; | |
b17edc10 | 462 | SENTRY; |
04a479f7 | 463 | |
464 | spin_lock(&kstat_lock); | |
465 | ||
466 | /* Item may only be added to the list once */ | |
467 | list_for_each_entry(tmp, &kstat_list, ks_list) { | |
468 | if (tmp == ksp) { | |
469 | spin_unlock(&kstat_lock); | |
b17edc10 | 470 | SGOTO(out, rc = -EEXIST); |
04a479f7 | 471 | } |
472 | } | |
473 | ||
474 | list_add_tail(&ksp->ks_list, &kstat_list); | |
475 | spin_unlock(&kstat_lock); | |
476 | ||
c30df9c8 | 477 | de_module = proc_dir_entry_find(proc_spl_kstat, ksp->ks_module); |
04a479f7 | 478 | if (de_module == NULL) { |
c30df9c8 | 479 | de_module = proc_mkdir(ksp->ks_module, proc_spl_kstat); |
04a479f7 | 480 | if (de_module == NULL) |
b17edc10 | 481 | SGOTO(out, rc = -EUNATCH); |
04a479f7 | 482 | } |
483 | ||
484 | de_name = create_proc_entry(ksp->ks_name, 0444, de_module); | |
485 | if (de_name == NULL) | |
b17edc10 | 486 | SGOTO(out, rc = -EUNATCH); |
04a479f7 | 487 | |
71c9f0b0 | 488 | mutex_enter(&ksp->ks_lock); |
04a479f7 | 489 | ksp->ks_proc = de_name; |
490 | de_name->proc_fops = &proc_kstat_operations; | |
491 | de_name->data = (void *)ksp; | |
71c9f0b0 | 492 | mutex_exit(&ksp->ks_lock); |
04a479f7 | 493 | out: |
494 | if (rc) { | |
495 | spin_lock(&kstat_lock); | |
496 | list_del_init(&ksp->ks_list); | |
497 | spin_unlock(&kstat_lock); | |
498 | } | |
499 | ||
b17edc10 | 500 | SEXIT; |
04a479f7 | 501 | } |
502 | EXPORT_SYMBOL(__kstat_install); | |
503 | ||
504 | void | |
505 | __kstat_delete(kstat_t *ksp) | |
506 | { | |
507 | struct proc_dir_entry *de_module; | |
508 | ||
509 | spin_lock(&kstat_lock); | |
510 | list_del_init(&ksp->ks_list); | |
511 | spin_unlock(&kstat_lock); | |
512 | ||
513 | if (ksp->ks_proc) { | |
514 | de_module = ksp->ks_proc->parent; | |
515 | remove_proc_entry(ksp->ks_name, de_module); | |
516 | ||
517 | /* Remove top level module directory if it's empty */ | |
518 | if (proc_dir_entries(de_module) == 0) | |
519 | remove_proc_entry(de_module->name, de_module->parent); | |
520 | } | |
521 | ||
522 | if (!(ksp->ks_flags & KSTAT_FLAG_VIRTUAL)) | |
523 | kmem_free(ksp->ks_data, ksp->ks_data_size); | |
524 | ||
71c9f0b0 | 525 | mutex_destroy(&ksp->ks_lock); |
04a479f7 | 526 | kmem_free(ksp, sizeof(*ksp)); |
527 | ||
528 | return; | |
529 | } | |
530 | EXPORT_SYMBOL(__kstat_delete); | |
531 | ||
04a479f7 | 532 | int |
1114ae6a | 533 | spl_kstat_init(void) |
04a479f7 | 534 | { |
b17edc10 | 535 | SENTRY; |
04a479f7 | 536 | spin_lock_init(&kstat_lock); |
537 | INIT_LIST_HEAD(&kstat_list); | |
538 | kstat_id = 0; | |
b17edc10 | 539 | SRETURN(0); |
04a479f7 | 540 | } |
541 | ||
542 | void | |
1114ae6a | 543 | spl_kstat_fini(void) |
04a479f7 | 544 | { |
b17edc10 | 545 | SENTRY; |
04a479f7 | 546 | ASSERT(list_empty(&kstat_list)); |
b17edc10 | 547 | SEXIT; |
04a479f7 | 548 | } |
549 |