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715f6251 | 1 | /* |
2 | * This file is part of the SPL: Solaris Porting Layer. | |
3 | * | |
4 | * Copyright (c) 2008 Lawrence Livermore National Security, LLC. | |
5 | * Produced at Lawrence Livermore National Laboratory | |
6 | * Written by: | |
7 | * Brian Behlendorf <behlendorf1@llnl.gov>, | |
8 | * Herb Wartens <wartens2@llnl.gov>, | |
9 | * Jim Garlick <garlick@llnl.gov> | |
10 | * UCRL-CODE-235197 | |
11 | * | |
12 | * This is free software; you can redistribute it and/or modify it | |
13 | * under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This is distributed in the hope that it will be useful, but WITHOUT | |
18 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
19 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
20 | * for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License along | |
23 | * with this program; if not, write to the Free Software Foundation, Inc., | |
24 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
25 | */ | |
26 | ||
04a479f7 | 27 | #include <sys/proc.h> |
57d1b188 | 28 | |
29 | #ifdef DEBUG_SUBSYSTEM | |
30 | #undef DEBUG_SUBSYSTEM | |
31 | #endif | |
32 | ||
33 | #define DEBUG_SUBSYSTEM S_PROC | |
34 | ||
404992e3 | 35 | #ifdef DEBUG_KMEM |
57d1b188 | 36 | static unsigned long table_min = 0; |
37 | static unsigned long table_max = ~0; | |
404992e3 | 38 | #endif |
39 | ||
40 | #ifdef CONFIG_SYSCTL | |
41 | static struct ctl_table_header *spl_header = NULL; | |
c30df9c8 | 42 | #endif /* CONFIG_SYSCTL */ |
43 | ||
c30df9c8 | 44 | static struct proc_dir_entry *proc_spl = NULL; |
04a479f7 | 45 | #ifdef DEBUG_KMEM |
c30df9c8 | 46 | static struct proc_dir_entry *proc_spl_kmem = NULL; |
ff449ac4 | 47 | static struct proc_dir_entry *proc_spl_kmem_slab = NULL; |
c30df9c8 | 48 | #endif /* DEBUG_KMEM */ |
c30df9c8 | 49 | struct proc_dir_entry *proc_spl_kstat = NULL; |
57d1b188 | 50 | |
57d86234 | 51 | #ifdef HAVE_CTL_UNNUMBERED |
52 | ||
53 | #define CTL_SPL CTL_UNNUMBERED | |
54 | #define CTL_SPL_DEBUG CTL_UNNUMBERED | |
36b313da | 55 | #define CTL_SPL_VM CTL_UNNUMBERED |
57d86234 | 56 | #define CTL_SPL_MUTEX CTL_UNNUMBERED |
57 | #define CTL_SPL_KMEM CTL_UNNUMBERED | |
58 | #define CTL_SPL_KSTAT CTL_UNNUMBERED | |
59 | ||
60 | #define CTL_VERSION CTL_UNNUMBERED /* Version */ | |
61 | #define CTL_HOSTID CTL_UNNUMBERED /* Host id by /usr/bin/hostid */ | |
62 | #define CTL_HW_SERIAL CTL_UNNUMBERED /* HW serial number by hostid */ | |
d1ff2312 | 63 | #define CTL_KALLSYMS CTL_UNNUMBERED /* kallsyms_lookup_name addr */ |
57d86234 | 64 | |
65 | #define CTL_DEBUG_SUBSYS CTL_UNNUMBERED /* Debug subsystem */ | |
66 | #define CTL_DEBUG_MASK CTL_UNNUMBERED /* Debug mask */ | |
67 | #define CTL_DEBUG_PRINTK CTL_UNNUMBERED /* All messages to console */ | |
68 | #define CTL_DEBUG_MB CTL_UNNUMBERED /* Debug buffer size */ | |
69 | #define CTL_DEBUG_BINARY CTL_UNNUMBERED /* Binary data in buffer */ | |
70 | #define CTL_DEBUG_CATASTROPHE CTL_UNNUMBERED /* Set if BUG'd or panic'd */ | |
71 | #define CTL_DEBUG_PANIC_ON_BUG CTL_UNNUMBERED /* Should panic on BUG */ | |
72 | #define CTL_DEBUG_PATH CTL_UNNUMBERED /* Dump log location */ | |
73 | #define CTL_DEBUG_DUMP CTL_UNNUMBERED /* Dump debug buffer to file */ | |
74 | #define CTL_DEBUG_FORCE_BUG CTL_UNNUMBERED /* Hook to force a BUG */ | |
75 | #define CTL_DEBUG_STACK_SIZE CTL_UNNUMBERED /* Max observed stack size */ | |
76 | ||
77 | #define CTL_CONSOLE_RATELIMIT CTL_UNNUMBERED /* Ratelimit console messages */ | |
78 | #define CTL_CONSOLE_MAX_DELAY_CS CTL_UNNUMBERED /* Max delay skip messages */ | |
79 | #define CTL_CONSOLE_MIN_DELAY_CS CTL_UNNUMBERED /* Init delay skip messages */ | |
80 | #define CTL_CONSOLE_BACKOFF CTL_UNNUMBERED /* Delay increase factor */ | |
81 | ||
36b313da BB |
82 | #define CTL_VM_MINFREE CTL_UNNUMBERED /* Minimum free memory */ |
83 | #define CTL_VM_DESFREE CTL_UNNUMBERED /* Desired free memory */ | |
84 | #define CTL_VM_LOTSFREE CTL_UNNUMBERED /* Lots of free memory */ | |
85 | #define CTL_VM_NEEDFREE CTL_UNNUMBERED /* Need free memory */ | |
86 | #define CTL_VM_SWAPFS_MINFREE CTL_UNNUMBERED /* Minimum swapfs memory */ | |
36b313da | 87 | #define CTL_VM_SWAPFS_RESERVE CTL_UNNUMBERED /* Reserved swapfs memory */ |
4ab13d3b BB |
88 | #define CTL_VM_AVAILRMEM CTL_UNNUMBERED /* Easily available memory */ |
89 | #define CTL_VM_FREEMEM CTL_UNNUMBERED /* Free memory */ | |
90 | #define CTL_VM_PHYSMEM CTL_UNNUMBERED /* Total physical memory */ | |
36b313da | 91 | |
57d86234 | 92 | #ifdef DEBUG_KMEM |
93 | #define CTL_KMEM_KMEMUSED CTL_UNNUMBERED /* Alloc'd kmem bytes */ | |
94 | #define CTL_KMEM_KMEMMAX CTL_UNNUMBERED /* Max alloc'd by kmem bytes */ | |
95 | #define CTL_KMEM_VMEMUSED CTL_UNNUMBERED /* Alloc'd vmem bytes */ | |
96 | #define CTL_KMEM_VMEMMAX CTL_UNNUMBERED /* Max alloc'd by vmem bytes */ | |
97 | #define CTL_KMEM_ALLOC_FAILED CTL_UNNUMBERED /* Cache allocations failed */ | |
98 | #endif | |
99 | ||
57d86234 | 100 | #else /* HAVE_CTL_UNNUMBERED */ |
101 | ||
36b313da BB |
102 | enum { |
103 | CTL_SPL = 0x87, | |
104 | CTL_SPL_DEBUG = 0x88, | |
105 | CTL_SPL_VM = 0x89, | |
106 | CTL_SPL_MUTEX = 0x90, | |
107 | CTL_SPL_KMEM = 0x91, | |
108 | CTL_SPL_KSTAT = 0x92, | |
109 | }; | |
9ab1ac14 | 110 | |
57d1b188 | 111 | enum { |
36b313da BB |
112 | CTL_VERSION = 1, /* Version */ |
113 | CTL_HOSTID, /* Host id reported by /usr/bin/hostid */ | |
114 | CTL_HW_SERIAL, /* Hardware serial number from hostid */ | |
d1ff2312 | 115 | CTL_KALLSYMS, /* Address of kallsyms_lookup_name */ |
36b313da BB |
116 | |
117 | CTL_DEBUG_SUBSYS, /* Debug subsystem */ | |
118 | CTL_DEBUG_MASK, /* Debug mask */ | |
119 | CTL_DEBUG_PRINTK, /* Force all messages to console */ | |
120 | CTL_DEBUG_MB, /* Debug buffer size */ | |
121 | CTL_DEBUG_BINARY, /* Include binary data in buffer */ | |
122 | CTL_DEBUG_CATASTROPHE, /* Set if we have BUG'd or panic'd */ | |
123 | CTL_DEBUG_PANIC_ON_BUG, /* Set if we should panic on BUG */ | |
124 | CTL_DEBUG_PATH, /* Dump log location */ | |
125 | CTL_DEBUG_DUMP, /* Dump debug buffer to file */ | |
126 | CTL_DEBUG_FORCE_BUG, /* Hook to force a BUG */ | |
127 | CTL_DEBUG_STACK_SIZE, /* Max observed stack size */ | |
128 | ||
129 | CTL_CONSOLE_RATELIMIT, /* Ratelimit console messages */ | |
130 | CTL_CONSOLE_MAX_DELAY_CS, /* Max delay which we skip messages */ | |
131 | CTL_CONSOLE_MIN_DELAY_CS, /* Init delay which we skip messages */ | |
132 | CTL_CONSOLE_BACKOFF, /* Delay increase factor */ | |
133 | ||
134 | CTL_VM_MINFREE, /* Minimum free memory threshold */ | |
135 | CTL_VM_DESFREE, /* Desired free memory threshold */ | |
136 | CTL_VM_LOTSFREE, /* Lots of free memory threshold */ | |
137 | CTL_VM_NEEDFREE, /* Need free memory deficit */ | |
138 | CTL_VM_SWAPFS_MINFREE, /* Minimum swapfs memory */ | |
36b313da | 139 | CTL_VM_SWAPFS_RESERVE, /* Reserved swapfs memory */ |
4ab13d3b BB |
140 | CTL_VM_AVAILRMEM, /* Easily available memory */ |
141 | CTL_VM_FREEMEM, /* Free memory */ | |
142 | CTL_VM_PHYSMEM, /* Total physical memory */ | |
9ab1ac14 | 143 | |
57d1b188 | 144 | #ifdef DEBUG_KMEM |
36b313da BB |
145 | CTL_KMEM_KMEMUSED, /* Alloc'd kmem bytes */ |
146 | CTL_KMEM_KMEMMAX, /* Max alloc'd by kmem bytes */ | |
147 | CTL_KMEM_VMEMUSED, /* Alloc'd vmem bytes */ | |
148 | CTL_KMEM_VMEMMAX, /* Max alloc'd by vmem bytes */ | |
57d1b188 | 149 | #endif |
57d1b188 | 150 | }; |
57d86234 | 151 | #endif /* HAVE_CTL_UNNUMBERED */ |
57d1b188 | 152 | |
153 | static int | |
154 | proc_copyin_string(char *kbuffer, int kbuffer_size, | |
155 | const char *ubuffer, int ubuffer_size) | |
156 | { | |
157 | int size; | |
158 | ||
159 | if (ubuffer_size > kbuffer_size) | |
160 | return -EOVERFLOW; | |
161 | ||
162 | if (copy_from_user((void *)kbuffer, (void *)ubuffer, ubuffer_size)) | |
163 | return -EFAULT; | |
164 | ||
165 | /* strip trailing whitespace */ | |
166 | size = strnlen(kbuffer, ubuffer_size); | |
167 | while (size-- >= 0) | |
168 | if (!isspace(kbuffer[size])) | |
169 | break; | |
170 | ||
171 | /* empty string */ | |
172 | if (size < 0) | |
173 | return -EINVAL; | |
174 | ||
175 | /* no space to terminate */ | |
176 | if (size == kbuffer_size) | |
177 | return -EOVERFLOW; | |
178 | ||
179 | kbuffer[size + 1] = 0; | |
180 | return 0; | |
181 | } | |
182 | ||
183 | static int | |
184 | proc_copyout_string(char *ubuffer, int ubuffer_size, | |
185 | const char *kbuffer, char *append) | |
186 | { | |
187 | /* NB if 'append' != NULL, it's a single character to append to the | |
188 | * copied out string - usually "\n", for /proc entries and | |
189 | * (i.e. a terminating zero byte) for sysctl entries | |
190 | */ | |
191 | int size = MIN(strlen(kbuffer), ubuffer_size); | |
192 | ||
193 | if (copy_to_user(ubuffer, kbuffer, size)) | |
194 | return -EFAULT; | |
195 | ||
196 | if (append != NULL && size < ubuffer_size) { | |
197 | if (copy_to_user(ubuffer + size, append, 1)) | |
198 | return -EFAULT; | |
199 | ||
200 | size++; | |
201 | } | |
202 | ||
203 | return size; | |
204 | } | |
205 | ||
206 | static int | |
207 | proc_dobitmasks(struct ctl_table *table, int write, struct file *filp, | |
208 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
209 | { | |
210 | unsigned long *mask = table->data; | |
211 | int is_subsys = (mask == &spl_debug_subsys) ? 1 : 0; | |
212 | int is_printk = (mask == &spl_debug_printk) ? 1 : 0; | |
213 | int size = 512, rc; | |
214 | char *str; | |
215 | ENTRY; | |
216 | ||
217 | str = kmem_alloc(size, KM_SLEEP); | |
218 | if (str == NULL) | |
219 | RETURN(-ENOMEM); | |
220 | ||
221 | if (write) { | |
222 | rc = proc_copyin_string(str, size, buffer, *lenp); | |
223 | if (rc < 0) | |
224 | RETURN(rc); | |
225 | ||
226 | rc = spl_debug_str2mask(mask, str, is_subsys); | |
227 | /* Always print BUG/ASSERT to console, so keep this mask */ | |
228 | if (is_printk) | |
229 | *mask |= D_EMERG; | |
230 | ||
231 | *ppos += *lenp; | |
232 | } else { | |
233 | rc = spl_debug_mask2str(str, size, *mask, is_subsys); | |
234 | if (*ppos >= rc) | |
235 | rc = 0; | |
236 | else | |
237 | rc = proc_copyout_string(buffer, *lenp, | |
238 | str + *ppos, "\n"); | |
239 | if (rc >= 0) { | |
240 | *lenp = rc; | |
241 | *ppos += rc; | |
242 | } | |
243 | } | |
244 | ||
245 | kmem_free(str, size); | |
246 | RETURN(rc); | |
247 | } | |
248 | ||
249 | static int | |
250 | proc_debug_mb(struct ctl_table *table, int write, struct file *filp, | |
251 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
252 | { | |
253 | char str[32]; | |
254 | int rc, len; | |
255 | ENTRY; | |
256 | ||
257 | if (write) { | |
258 | rc = proc_copyin_string(str, sizeof(str), buffer, *lenp); | |
259 | if (rc < 0) | |
260 | RETURN(rc); | |
261 | ||
262 | rc = spl_debug_set_mb(simple_strtoul(str, NULL, 0)); | |
263 | *ppos += *lenp; | |
264 | } else { | |
265 | len = snprintf(str, sizeof(str), "%d", spl_debug_get_mb()); | |
266 | if (*ppos >= len) | |
267 | rc = 0; | |
268 | else | |
269 | rc = proc_copyout_string(buffer, *lenp, str + *ppos, "\n"); | |
270 | ||
271 | if (rc >= 0) { | |
272 | *lenp = rc; | |
273 | *ppos += rc; | |
274 | } | |
275 | } | |
276 | ||
277 | RETURN(rc); | |
278 | } | |
279 | ||
280 | static int | |
281 | proc_dump_kernel(struct ctl_table *table, int write, struct file *filp, | |
282 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
283 | { | |
284 | ENTRY; | |
285 | ||
286 | if (write) { | |
7fea96c0 | 287 | spl_debug_dumplog(0); |
57d1b188 | 288 | *ppos += *lenp; |
289 | } else { | |
290 | *lenp = 0; | |
291 | } | |
292 | ||
293 | RETURN(0); | |
294 | } | |
295 | ||
296 | static int | |
297 | proc_force_bug(struct ctl_table *table, int write, struct file *filp, | |
298 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
299 | { | |
300 | ENTRY; | |
301 | ||
302 | if (write) { | |
2fae1b3d | 303 | CERROR("Crashing due to forced SBUG\n"); |
304 | SBUG(); | |
57d1b188 | 305 | /* Unreachable */ |
306 | } else { | |
307 | *lenp = 0; | |
308 | } | |
309 | ||
310 | RETURN(0); | |
311 | } | |
312 | ||
313 | static int | |
314 | proc_console_max_delay_cs(struct ctl_table *table, int write, struct file *filp, | |
315 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
316 | { | |
317 | int rc, max_delay_cs; | |
318 | struct ctl_table dummy = *table; | |
319 | long d; | |
320 | ENTRY; | |
321 | ||
322 | dummy.data = &max_delay_cs; | |
323 | dummy.proc_handler = &proc_dointvec; | |
324 | ||
325 | if (write) { | |
326 | max_delay_cs = 0; | |
327 | rc = proc_dointvec(&dummy, write, filp, buffer, lenp, ppos); | |
328 | if (rc < 0) | |
329 | RETURN(rc); | |
330 | ||
331 | if (max_delay_cs <= 0) | |
332 | RETURN(-EINVAL); | |
333 | ||
334 | d = (max_delay_cs * HZ) / 100; | |
335 | if (d == 0 || d < spl_console_min_delay) | |
336 | RETURN(-EINVAL); | |
337 | ||
338 | spl_console_max_delay = d; | |
339 | } else { | |
340 | max_delay_cs = (spl_console_max_delay * 100) / HZ; | |
341 | rc = proc_dointvec(&dummy, write, filp, buffer, lenp, ppos); | |
342 | } | |
343 | ||
344 | RETURN(rc); | |
345 | } | |
346 | ||
347 | static int | |
348 | proc_console_min_delay_cs(struct ctl_table *table, int write, struct file *filp, | |
349 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
350 | { | |
351 | int rc, min_delay_cs; | |
352 | struct ctl_table dummy = *table; | |
353 | long d; | |
354 | ENTRY; | |
355 | ||
356 | dummy.data = &min_delay_cs; | |
357 | dummy.proc_handler = &proc_dointvec; | |
358 | ||
359 | if (write) { | |
360 | min_delay_cs = 0; | |
361 | rc = proc_dointvec(&dummy, write, filp, buffer, lenp, ppos); | |
362 | if (rc < 0) | |
363 | RETURN(rc); | |
364 | ||
365 | if (min_delay_cs <= 0) | |
366 | RETURN(-EINVAL); | |
367 | ||
368 | d = (min_delay_cs * HZ) / 100; | |
369 | if (d == 0 || d > spl_console_max_delay) | |
370 | RETURN(-EINVAL); | |
371 | ||
372 | spl_console_min_delay = d; | |
373 | } else { | |
374 | min_delay_cs = (spl_console_min_delay * 100) / HZ; | |
375 | rc = proc_dointvec(&dummy, write, filp, buffer, lenp, ppos); | |
376 | } | |
377 | ||
378 | RETURN(rc); | |
379 | } | |
380 | ||
381 | static int | |
382 | proc_console_backoff(struct ctl_table *table, int write, struct file *filp, | |
383 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
384 | { | |
385 | int rc, backoff; | |
386 | struct ctl_table dummy = *table; | |
387 | ENTRY; | |
388 | ||
389 | dummy.data = &backoff; | |
390 | dummy.proc_handler = &proc_dointvec; | |
391 | ||
392 | if (write) { | |
393 | backoff = 0; | |
394 | rc = proc_dointvec(&dummy, write, filp, buffer, lenp, ppos); | |
395 | if (rc < 0) | |
396 | RETURN(rc); | |
397 | ||
398 | if (backoff <= 0) | |
399 | RETURN(-EINVAL); | |
400 | ||
401 | spl_console_backoff = backoff; | |
402 | } else { | |
403 | backoff = spl_console_backoff; | |
404 | rc = proc_dointvec(&dummy, write, filp, buffer, lenp, ppos); | |
405 | } | |
406 | ||
407 | RETURN(rc); | |
408 | } | |
409 | ||
c6dc93d6 | 410 | #ifdef DEBUG_KMEM |
57d1b188 | 411 | static int |
d04c8a56 BB |
412 | proc_domemused(struct ctl_table *table, int write, struct file *filp, |
413 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
57d1b188 | 414 | { |
415 | int rc = 0; | |
416 | unsigned long min = 0, max = ~0, val; | |
417 | struct ctl_table dummy = *table; | |
418 | ENTRY; | |
419 | ||
420 | dummy.data = &val; | |
421 | dummy.proc_handler = &proc_dointvec; | |
422 | dummy.extra1 = &min; | |
423 | dummy.extra2 = &max; | |
424 | ||
425 | if (write) { | |
426 | *ppos += *lenp; | |
427 | } else { | |
d04c8a56 | 428 | # ifdef HAVE_ATOMIC64_T |
550f1705 | 429 | val = atomic64_read((atomic64_t *)table->data); |
d04c8a56 BB |
430 | # else |
431 | val = atomic_read((atomic_t *)table->data); | |
432 | # endif /* HAVE_ATOMIC64_T */ | |
57d1b188 | 433 | rc = proc_doulongvec_minmax(&dummy, write, filp, |
434 | buffer, lenp, ppos); | |
435 | } | |
436 | ||
437 | RETURN(rc); | |
438 | } | |
c6dc93d6 | 439 | #endif /* DEBUG_KMEM */ |
57d1b188 | 440 | |
441 | static int | |
442 | proc_dohostid(struct ctl_table *table, int write, struct file *filp, | |
443 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
444 | { | |
445 | int len, rc = 0; | |
937879f1 | 446 | int32_t val; |
57d1b188 | 447 | char *end, str[32]; |
a0b5ae8a | 448 | ENTRY; |
57d1b188 | 449 | |
450 | if (write) { | |
a0b5ae8a RC |
451 | /* We can't use proc_doulongvec_minmax() in the write |
452 | * case hear because hostid while a hex value has no | |
453 | * leading 0x which confuses the helper function. */ | |
57d1b188 | 454 | rc = proc_copyin_string(str, sizeof(str), buffer, *lenp); |
455 | if (rc < 0) | |
456 | RETURN(rc); | |
457 | ||
937879f1 | 458 | val = simple_strtol(str, &end, 16); |
a0b5ae8a RC |
459 | if (str == end) |
460 | RETURN(-EINVAL); | |
57d1b188 | 461 | |
a0b5ae8a RC |
462 | spl_hostid = (long) val; |
463 | (void) snprintf(hw_serial, HW_HOSTID_LEN, "%u", | |
464 | (val >= 0) ? val : -val); | |
465 | hw_serial[HW_HOSTID_LEN - 1] = '\0'; | |
57d1b188 | 466 | *ppos += *lenp; |
467 | } else { | |
468 | len = snprintf(str, sizeof(str), "%lx", spl_hostid); | |
469 | if (*ppos >= len) | |
470 | rc = 0; | |
471 | else | |
472 | rc = proc_copyout_string(buffer, *lenp, str + *ppos, "\n"); | |
473 | ||
474 | if (rc >= 0) { | |
475 | *lenp = rc; | |
476 | *ppos += rc; | |
477 | } | |
478 | } | |
479 | ||
480 | RETURN(rc); | |
481 | } | |
482 | ||
d1ff2312 BB |
483 | #ifndef HAVE_KALLSYMS_LOOKUP_NAME |
484 | static int | |
485 | proc_dokallsyms_lookup_name(struct ctl_table *table, int write, | |
486 | struct file *filp, void __user *buffer, | |
487 | size_t *lenp, loff_t *ppos) { | |
488 | int len, rc = 0; | |
489 | char *end, str[32]; | |
490 | ENTRY; | |
491 | ||
492 | if (write) { | |
493 | /* This may only be set once at module load time */ | |
96dded38 | 494 | if (spl_kallsyms_lookup_name_fn != SYMBOL_POISON) |
d1ff2312 BB |
495 | RETURN(-EEXIST); |
496 | ||
497 | /* We can't use proc_doulongvec_minmax() in the write | |
498 | * case hear because the address while a hex value has no | |
499 | * leading 0x which confuses the helper function. */ | |
500 | rc = proc_copyin_string(str, sizeof(str), buffer, *lenp); | |
501 | if (rc < 0) | |
502 | RETURN(rc); | |
503 | ||
504 | spl_kallsyms_lookup_name_fn = | |
505 | (kallsyms_lookup_name_t)simple_strtoul(str, &end, 16); | |
506 | if (str == end) | |
507 | RETURN(-EINVAL); | |
508 | ||
509 | *ppos += *lenp; | |
510 | } else { | |
511 | len = snprintf(str, sizeof(str), "%lx", | |
512 | (unsigned long)spl_kallsyms_lookup_name_fn); | |
513 | if (*ppos >= len) | |
514 | rc = 0; | |
515 | else | |
516 | rc = proc_copyout_string(buffer,*lenp,str+*ppos,"\n"); | |
517 | ||
518 | if (rc >= 0) { | |
519 | *lenp = rc; | |
520 | *ppos += rc; | |
521 | } | |
522 | } | |
523 | ||
524 | RETURN(rc); | |
525 | } | |
526 | #endif /* HAVE_KALLSYMS_LOOKUP_NAME */ | |
527 | ||
4ab13d3b BB |
528 | static int |
529 | proc_doavailrmem(struct ctl_table *table, int write, struct file *filp, | |
530 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
531 | { | |
532 | int len, rc = 0; | |
533 | char str[32]; | |
534 | ENTRY; | |
535 | ||
536 | if (write) { | |
537 | *ppos += *lenp; | |
538 | } else { | |
539 | len = snprintf(str, sizeof(str), "%lu", (unsigned long)availrmem); | |
540 | if (*ppos >= len) | |
541 | rc = 0; | |
542 | else | |
543 | rc = proc_copyout_string(buffer, *lenp, str + *ppos, "\n"); | |
544 | ||
545 | if (rc >= 0) { | |
546 | *lenp = rc; | |
547 | *ppos += rc; | |
548 | } | |
549 | } | |
550 | ||
551 | RETURN(rc); | |
552 | } | |
553 | ||
554 | static int | |
555 | proc_dofreemem(struct ctl_table *table, int write, struct file *filp, | |
556 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
557 | { | |
558 | int len, rc = 0; | |
559 | char str[32]; | |
560 | ENTRY; | |
561 | ||
562 | if (write) { | |
563 | *ppos += *lenp; | |
564 | } else { | |
565 | len = snprintf(str, sizeof(str), "%lu", (unsigned long)freemem); | |
566 | if (*ppos >= len) | |
567 | rc = 0; | |
568 | else | |
569 | rc = proc_copyout_string(buffer, *lenp, str + *ppos, "\n"); | |
570 | ||
571 | if (rc >= 0) { | |
572 | *lenp = rc; | |
573 | *ppos += rc; | |
574 | } | |
575 | } | |
576 | ||
577 | RETURN(rc); | |
578 | } | |
579 | ||
ff449ac4 | 580 | #ifdef DEBUG_KMEM |
581 | static void | |
582 | slab_seq_show_headers(struct seq_file *f) | |
583 | { | |
584 | seq_printf(f, "%-36s\n", "name"); | |
585 | } | |
586 | ||
587 | static int | |
588 | slab_seq_show(struct seq_file *f, void *p) | |
589 | { | |
590 | spl_kmem_cache_t *skc = p; | |
591 | ||
592 | ASSERT(skc->skc_magic == SKC_MAGIC); | |
593 | ||
594 | spin_lock(&skc->skc_lock); | |
595 | seq_printf(f, "%-36s ", skc->skc_name); | |
a1502d76 | 596 | seq_printf(f, "%u %u %u - %lu %lu %lu - %lu %lu %lu - %lu %lu %lu\n", |
ff449ac4 | 597 | (unsigned)skc->skc_obj_size, |
a1502d76 | 598 | (unsigned)skc->skc_slab_objs, |
ff449ac4 | 599 | (unsigned)skc->skc_slab_size, |
ff449ac4 | 600 | (long unsigned)skc->skc_slab_fail, |
601 | (long unsigned)skc->skc_slab_create, | |
602 | (long unsigned)skc->skc_slab_destroy, | |
603 | (long unsigned)skc->skc_slab_total, | |
604 | (long unsigned)skc->skc_slab_alloc, | |
605 | (long unsigned)skc->skc_slab_max, | |
606 | (long unsigned)skc->skc_obj_total, | |
607 | (long unsigned)skc->skc_obj_alloc, | |
a1502d76 | 608 | (long unsigned)skc->skc_obj_max); |
ff449ac4 | 609 | |
610 | spin_unlock(&skc->skc_lock); | |
611 | ||
612 | return 0; | |
613 | } | |
614 | ||
615 | static void * | |
616 | slab_seq_start(struct seq_file *f, loff_t *pos) | |
617 | { | |
618 | struct list_head *p; | |
619 | loff_t n = *pos; | |
620 | ENTRY; | |
621 | ||
622 | down_read(&spl_kmem_cache_sem); | |
623 | if (!n) | |
624 | slab_seq_show_headers(f); | |
625 | ||
626 | p = spl_kmem_cache_list.next; | |
627 | while (n--) { | |
628 | p = p->next; | |
629 | if (p == &spl_kmem_cache_list) | |
630 | RETURN(NULL); | |
631 | } | |
632 | ||
633 | RETURN(list_entry(p, spl_kmem_cache_t, skc_list)); | |
634 | } | |
635 | ||
636 | static void * | |
637 | slab_seq_next(struct seq_file *f, void *p, loff_t *pos) | |
638 | { | |
639 | spl_kmem_cache_t *skc = p; | |
640 | ENTRY; | |
641 | ||
642 | ++*pos; | |
643 | RETURN((skc->skc_list.next == &spl_kmem_cache_list) ? | |
644 | NULL : list_entry(skc->skc_list.next, spl_kmem_cache_t, skc_list)); | |
645 | } | |
646 | ||
647 | static void | |
648 | slab_seq_stop(struct seq_file *f, void *v) | |
649 | { | |
650 | up_read(&spl_kmem_cache_sem); | |
651 | } | |
652 | ||
653 | static struct seq_operations slab_seq_ops = { | |
654 | .show = slab_seq_show, | |
655 | .start = slab_seq_start, | |
656 | .next = slab_seq_next, | |
657 | .stop = slab_seq_stop, | |
658 | }; | |
659 | ||
660 | static int | |
661 | proc_slab_open(struct inode *inode, struct file *filp) | |
662 | { | |
663 | return seq_open(filp, &slab_seq_ops); | |
664 | } | |
665 | ||
666 | static struct file_operations proc_slab_operations = { | |
667 | .open = proc_slab_open, | |
668 | .read = seq_read, | |
669 | .llseek = seq_lseek, | |
670 | .release = seq_release, | |
671 | }; | |
672 | #endif /* DEBUG_KMEM */ | |
673 | ||
9ab1ac14 | 674 | static struct ctl_table spl_debug_table[] = { |
57d1b188 | 675 | { |
676 | .ctl_name = CTL_DEBUG_SUBSYS, | |
9ab1ac14 | 677 | .procname = "subsystem", |
57d1b188 | 678 | .data = &spl_debug_subsys, |
679 | .maxlen = sizeof(unsigned long), | |
680 | .mode = 0644, | |
681 | .proc_handler = &proc_dobitmasks | |
682 | }, | |
683 | { | |
684 | .ctl_name = CTL_DEBUG_MASK, | |
9ab1ac14 | 685 | .procname = "mask", |
57d1b188 | 686 | .data = &spl_debug_mask, |
687 | .maxlen = sizeof(unsigned long), | |
688 | .mode = 0644, | |
689 | .proc_handler = &proc_dobitmasks | |
690 | }, | |
691 | { | |
692 | .ctl_name = CTL_DEBUG_PRINTK, | |
9ab1ac14 | 693 | .procname = "printk", |
57d1b188 | 694 | .data = &spl_debug_printk, |
695 | .maxlen = sizeof(unsigned long), | |
696 | .mode = 0644, | |
697 | .proc_handler = &proc_dobitmasks | |
698 | }, | |
699 | { | |
700 | .ctl_name = CTL_DEBUG_MB, | |
9ab1ac14 | 701 | .procname = "mb", |
57d1b188 | 702 | .mode = 0644, |
703 | .proc_handler = &proc_debug_mb, | |
704 | }, | |
705 | { | |
706 | .ctl_name = CTL_DEBUG_BINARY, | |
9ab1ac14 | 707 | .procname = "binary", |
57d1b188 | 708 | .data = &spl_debug_binary, |
709 | .maxlen = sizeof(int), | |
710 | .mode = 0644, | |
711 | .proc_handler = &proc_dointvec, | |
712 | }, | |
713 | { | |
714 | .ctl_name = CTL_DEBUG_CATASTROPHE, | |
715 | .procname = "catastrophe", | |
716 | .data = &spl_debug_catastrophe, | |
717 | .maxlen = sizeof(int), | |
718 | .mode = 0444, | |
719 | .proc_handler = &proc_dointvec, | |
720 | }, | |
721 | { | |
722 | .ctl_name = CTL_DEBUG_PANIC_ON_BUG, | |
723 | .procname = "panic_on_bug", | |
724 | .data = &spl_debug_panic_on_bug, | |
725 | .maxlen = sizeof(int), | |
726 | .mode = 0644, | |
727 | .proc_handler = &proc_dointvec | |
728 | }, | |
729 | { | |
730 | .ctl_name = CTL_DEBUG_PATH, | |
9ab1ac14 | 731 | .procname = "path", |
57d1b188 | 732 | .data = spl_debug_file_path, |
733 | .maxlen = sizeof(spl_debug_file_path), | |
734 | .mode = 0644, | |
735 | .proc_handler = &proc_dostring, | |
736 | }, | |
737 | { | |
738 | .ctl_name = CTL_DEBUG_DUMP, | |
9ab1ac14 | 739 | .procname = "dump", |
57d1b188 | 740 | .mode = 0200, |
741 | .proc_handler = &proc_dump_kernel, | |
742 | }, | |
743 | { .ctl_name = CTL_DEBUG_FORCE_BUG, | |
744 | .procname = "force_bug", | |
745 | .mode = 0200, | |
746 | .proc_handler = &proc_force_bug, | |
747 | }, | |
748 | { | |
749 | .ctl_name = CTL_CONSOLE_RATELIMIT, | |
750 | .procname = "console_ratelimit", | |
751 | .data = &spl_console_ratelimit, | |
752 | .maxlen = sizeof(int), | |
753 | .mode = 0644, | |
754 | .proc_handler = &proc_dointvec, | |
755 | }, | |
756 | { | |
757 | .ctl_name = CTL_CONSOLE_MAX_DELAY_CS, | |
758 | .procname = "console_max_delay_centisecs", | |
759 | .maxlen = sizeof(int), | |
760 | .mode = 0644, | |
761 | .proc_handler = &proc_console_max_delay_cs, | |
762 | }, | |
763 | { | |
764 | .ctl_name = CTL_CONSOLE_MIN_DELAY_CS, | |
765 | .procname = "console_min_delay_centisecs", | |
766 | .maxlen = sizeof(int), | |
767 | .mode = 0644, | |
768 | .proc_handler = &proc_console_min_delay_cs, | |
769 | }, | |
770 | { | |
771 | .ctl_name = CTL_CONSOLE_BACKOFF, | |
772 | .procname = "console_backoff", | |
773 | .maxlen = sizeof(int), | |
774 | .mode = 0644, | |
775 | .proc_handler = &proc_console_backoff, | |
776 | }, | |
777 | { | |
9ab1ac14 | 778 | .ctl_name = CTL_DEBUG_STACK_SIZE, |
57d1b188 | 779 | .procname = "stack_max", |
780 | .data = &spl_debug_stack, | |
781 | .maxlen = sizeof(int), | |
782 | .mode = 0444, | |
783 | .proc_handler = &proc_dointvec, | |
784 | }, | |
9ab1ac14 | 785 | {0}, |
786 | }; | |
787 | ||
36b313da BB |
788 | static struct ctl_table spl_vm_table[] = { |
789 | { | |
790 | .ctl_name = CTL_VM_MINFREE, | |
791 | .procname = "minfree", | |
792 | .data = &minfree, | |
793 | .maxlen = sizeof(int), | |
794 | .mode = 0644, | |
795 | .proc_handler = &proc_dointvec, | |
796 | }, | |
797 | { | |
798 | .ctl_name = CTL_VM_DESFREE, | |
799 | .procname = "desfree", | |
800 | .data = &desfree, | |
801 | .maxlen = sizeof(int), | |
802 | .mode = 0644, | |
803 | .proc_handler = &proc_dointvec, | |
804 | }, | |
805 | { | |
806 | .ctl_name = CTL_VM_LOTSFREE, | |
807 | .procname = "lotsfree", | |
808 | .data = &lotsfree, | |
809 | .maxlen = sizeof(int), | |
810 | .mode = 0644, | |
811 | .proc_handler = &proc_dointvec, | |
812 | }, | |
813 | { | |
814 | .ctl_name = CTL_VM_NEEDFREE, | |
815 | .procname = "needfree", | |
816 | .data = &needfree, | |
817 | .maxlen = sizeof(int), | |
818 | .mode = 0444, | |
819 | .proc_handler = &proc_dointvec, | |
820 | }, | |
821 | { | |
822 | .ctl_name = CTL_VM_SWAPFS_MINFREE, | |
823 | .procname = "swapfs_minfree", | |
824 | .data = &swapfs_minfree, | |
825 | .maxlen = sizeof(int), | |
826 | .mode = 0644, | |
827 | .proc_handler = &proc_dointvec, | |
828 | }, | |
36b313da BB |
829 | { |
830 | .ctl_name = CTL_VM_SWAPFS_RESERVE, | |
831 | .procname = "swapfs_reserve", | |
832 | .data = &swapfs_reserve, | |
833 | .maxlen = sizeof(int), | |
834 | .mode = 0644, | |
835 | .proc_handler = &proc_dointvec, | |
836 | }, | |
837 | { | |
838 | .ctl_name = CTL_VM_AVAILRMEM, | |
839 | .procname = "availrmem", | |
4ab13d3b BB |
840 | .mode = 0444, |
841 | .proc_handler = &proc_doavailrmem, | |
842 | }, | |
843 | { | |
844 | .ctl_name = CTL_VM_FREEMEM, | |
845 | .procname = "freemem", | |
846 | .data = (void *)2, | |
847 | .maxlen = sizeof(int), | |
848 | .mode = 0444, | |
849 | .proc_handler = &proc_dofreemem, | |
850 | }, | |
851 | { | |
852 | .ctl_name = CTL_VM_PHYSMEM, | |
853 | .procname = "physmem", | |
854 | .data = &physmem, | |
36b313da BB |
855 | .maxlen = sizeof(int), |
856 | .mode = 0444, | |
857 | .proc_handler = &proc_dointvec, | |
858 | }, | |
859 | {0}, | |
860 | }; | |
861 | ||
57d1b188 | 862 | #ifdef DEBUG_KMEM |
9ab1ac14 | 863 | static struct ctl_table spl_kmem_table[] = { |
57d1b188 | 864 | { |
865 | .ctl_name = CTL_KMEM_KMEMUSED, | |
866 | .procname = "kmem_used", | |
867 | .data = &kmem_alloc_used, | |
d04c8a56 | 868 | # ifdef HAVE_ATOMIC64_T |
57d1b188 | 869 | .maxlen = sizeof(atomic64_t), |
d04c8a56 BB |
870 | # else |
871 | .maxlen = sizeof(atomic_t), | |
872 | # endif /* HAVE_ATOMIC64_T */ | |
57d1b188 | 873 | .mode = 0444, |
d04c8a56 | 874 | .proc_handler = &proc_domemused, |
57d1b188 | 875 | }, |
876 | { | |
877 | .ctl_name = CTL_KMEM_KMEMMAX, | |
878 | .procname = "kmem_max", | |
879 | .data = &kmem_alloc_max, | |
880 | .maxlen = sizeof(unsigned long), | |
881 | .extra1 = &table_min, | |
882 | .extra2 = &table_max, | |
883 | .mode = 0444, | |
884 | .proc_handler = &proc_doulongvec_minmax, | |
885 | }, | |
886 | { | |
887 | .ctl_name = CTL_KMEM_VMEMUSED, | |
888 | .procname = "vmem_used", | |
889 | .data = &vmem_alloc_used, | |
d04c8a56 | 890 | # ifdef HAVE_ATOMIC64_T |
57d1b188 | 891 | .maxlen = sizeof(atomic64_t), |
d04c8a56 BB |
892 | # else |
893 | .maxlen = sizeof(atomic_t), | |
894 | # endif /* HAVE_ATOMIC64_T */ | |
57d1b188 | 895 | .mode = 0444, |
d04c8a56 | 896 | .proc_handler = &proc_domemused, |
57d1b188 | 897 | }, |
898 | { | |
899 | .ctl_name = CTL_KMEM_VMEMMAX, | |
900 | .procname = "vmem_max", | |
901 | .data = &vmem_alloc_max, | |
902 | .maxlen = sizeof(unsigned long), | |
903 | .extra1 = &table_min, | |
904 | .extra2 = &table_max, | |
905 | .mode = 0444, | |
906 | .proc_handler = &proc_doulongvec_minmax, | |
907 | }, | |
9ab1ac14 | 908 | {0}, |
909 | }; | |
04a479f7 | 910 | #endif /* DEBUG_KMEM */ |
911 | ||
04a479f7 | 912 | static struct ctl_table spl_kstat_table[] = { |
913 | {0}, | |
914 | }; | |
9ab1ac14 | 915 | |
916 | static struct ctl_table spl_table[] = { | |
917 | /* NB No .strategy entries have been provided since | |
918 | * sysctl(8) prefers to go via /proc for portability. | |
919 | */ | |
920 | { | |
921 | .ctl_name = CTL_VERSION, | |
922 | .procname = "version", | |
923 | .data = spl_version, | |
924 | .maxlen = sizeof(spl_version), | |
925 | .mode = 0444, | |
926 | .proc_handler = &proc_dostring, | |
927 | }, | |
57d1b188 | 928 | { |
929 | .ctl_name = CTL_HOSTID, | |
930 | .procname = "hostid", | |
931 | .data = &spl_hostid, | |
932 | .maxlen = sizeof(unsigned long), | |
933 | .mode = 0644, | |
934 | .proc_handler = &proc_dohostid, | |
935 | }, | |
936 | { | |
937 | .ctl_name = CTL_HW_SERIAL, | |
938 | .procname = "hw_serial", | |
937879f1 | 939 | .data = hw_serial, |
940 | .maxlen = sizeof(hw_serial), | |
57d1b188 | 941 | .mode = 0444, |
942 | .proc_handler = &proc_dostring, | |
943 | }, | |
d1ff2312 BB |
944 | #ifndef HAVE_KALLSYMS_LOOKUP_NAME |
945 | { | |
946 | .ctl_name = CTL_KALLSYMS, | |
947 | .procname = "kallsyms_lookup_name", | |
948 | .data = &spl_kallsyms_lookup_name_fn, | |
949 | .maxlen = sizeof(unsigned long), | |
950 | .mode = 0644, | |
951 | .proc_handler = &proc_dokallsyms_lookup_name, | |
952 | }, | |
953 | #endif | |
9ab1ac14 | 954 | { |
955 | .ctl_name = CTL_SPL_DEBUG, | |
956 | .procname = "debug", | |
957 | .mode = 0555, | |
958 | .child = spl_debug_table, | |
959 | }, | |
36b313da BB |
960 | { |
961 | .ctl_name = CTL_SPL_VM, | |
962 | .procname = "vm", | |
963 | .mode = 0555, | |
964 | .child = spl_vm_table, | |
965 | }, | |
9ab1ac14 | 966 | #ifdef DEBUG_KMEM |
967 | { | |
968 | .ctl_name = CTL_SPL_KMEM, | |
969 | .procname = "kmem", | |
970 | .mode = 0555, | |
971 | .child = spl_kmem_table, | |
972 | }, | |
04a479f7 | 973 | #endif |
04a479f7 | 974 | { |
975 | .ctl_name = CTL_SPL_KSTAT, | |
976 | .procname = "kstat", | |
977 | .mode = 0555, | |
978 | .child = spl_kstat_table, | |
979 | }, | |
57d1b188 | 980 | { 0 }, |
981 | }; | |
982 | ||
9ab1ac14 | 983 | static struct ctl_table spl_dir[] = { |
57d1b188 | 984 | { |
985 | .ctl_name = CTL_SPL, | |
986 | .procname = "spl", | |
987 | .mode = 0555, | |
988 | .child = spl_table, | |
989 | }, | |
57d86234 | 990 | { 0 } |
991 | }; | |
992 | ||
993 | static struct ctl_table spl_root[] = { | |
994 | { | |
995 | .ctl_name = CTL_KERN, | |
996 | .procname = "kernel", | |
997 | .mode = 0555, | |
998 | .child = spl_dir, | |
999 | }, | |
1000 | { 0 } | |
57d1b188 | 1001 | }; |
1002 | ||
404992e3 | 1003 | static int |
1004 | proc_dir_entry_match(int len, const char *name, struct proc_dir_entry *de) | |
1005 | { | |
1006 | if (de->namelen != len) | |
1007 | return 0; | |
1008 | ||
1009 | return !memcmp(name, de->name, len); | |
1010 | } | |
1011 | ||
04a479f7 | 1012 | struct proc_dir_entry * |
404992e3 | 1013 | proc_dir_entry_find(struct proc_dir_entry *root, const char *str) |
1014 | { | |
1015 | struct proc_dir_entry *de; | |
1016 | ||
1017 | for (de = root->subdir; de; de = de->next) | |
1018 | if (proc_dir_entry_match(strlen(str), str, de)) | |
1019 | return de; | |
1020 | ||
1021 | return NULL; | |
1022 | } | |
1023 | ||
04a479f7 | 1024 | int |
1025 | proc_dir_entries(struct proc_dir_entry *root) | |
1026 | { | |
1027 | struct proc_dir_entry *de; | |
1028 | int i = 0; | |
1029 | ||
1030 | for (de = root->subdir; de; de = de->next) | |
1031 | i++; | |
1032 | ||
1033 | return i; | |
1034 | } | |
1035 | ||
57d1b188 | 1036 | int |
1037 | proc_init(void) | |
1038 | { | |
404992e3 | 1039 | int rc = 0; |
57d1b188 | 1040 | ENTRY; |
1041 | ||
1042 | #ifdef CONFIG_SYSCTL | |
57d86234 | 1043 | spl_header = spl_register_sysctl_table(spl_root, 0); |
57d1b188 | 1044 | if (spl_header == NULL) |
1045 | RETURN(-EUNATCH); | |
c30df9c8 | 1046 | #endif /* CONFIG_SYSCTL */ |
9ab1ac14 | 1047 | |
c30df9c8 | 1048 | proc_spl = proc_mkdir("spl", NULL); |
1049 | if (proc_spl == NULL) | |
404992e3 | 1050 | GOTO(out, rc = -EUNATCH); |
1051 | ||
04a479f7 | 1052 | #ifdef DEBUG_KMEM |
c30df9c8 | 1053 | proc_spl_kmem = proc_mkdir("kmem", proc_spl); |
1054 | if (proc_spl_kmem == NULL) | |
1055 | GOTO(out, rc = -EUNATCH); | |
ff449ac4 | 1056 | |
1057 | proc_spl_kmem_slab = create_proc_entry("slab", 0444, proc_spl_kmem); | |
1058 | if (proc_spl_kmem_slab == NULL) | |
1059 | GOTO(out, rc = -EUNATCH); | |
1060 | ||
1061 | proc_spl_kmem_slab->proc_fops = &proc_slab_operations; | |
04a479f7 | 1062 | #endif /* DEBUG_KMEM */ |
1063 | ||
c30df9c8 | 1064 | proc_spl_kstat = proc_mkdir("kstat", proc_spl); |
1065 | if (proc_spl_kstat == NULL) | |
1066 | GOTO(out, rc = -EUNATCH); | |
404992e3 | 1067 | out: |
c30df9c8 | 1068 | if (rc) { |
1069 | remove_proc_entry("kstat", proc_spl); | |
ff449ac4 | 1070 | #ifdef DEBUG_KMEM |
1071 | remove_proc_entry("slab", proc_spl_kmem); | |
c30df9c8 | 1072 | remove_proc_entry("kmem", proc_spl); |
055ffd98 | 1073 | #endif |
a02118a8 | 1074 | remove_proc_entry("spl", NULL); |
c30df9c8 | 1075 | #ifdef CONFIG_SYSCTL |
1076 | spl_unregister_sysctl_table(spl_header); | |
404992e3 | 1077 | #endif /* CONFIG_SYSCTL */ |
c30df9c8 | 1078 | } |
c30df9c8 | 1079 | |
404992e3 | 1080 | RETURN(rc); |
57d1b188 | 1081 | } |
1082 | ||
1083 | void | |
1084 | proc_fini(void) | |
1085 | { | |
1086 | ENTRY; | |
1087 | ||
c30df9c8 | 1088 | remove_proc_entry("kstat", proc_spl); |
ff449ac4 | 1089 | #ifdef DEBUG_KMEM |
1090 | remove_proc_entry("slab", proc_spl_kmem); | |
c30df9c8 | 1091 | remove_proc_entry("kmem", proc_spl); |
055ffd98 | 1092 | #endif |
a02118a8 | 1093 | remove_proc_entry("spl", NULL); |
c30df9c8 | 1094 | |
57d1b188 | 1095 | #ifdef CONFIG_SYSCTL |
1096 | ASSERT(spl_header != NULL); | |
57d86234 | 1097 | spl_unregister_sysctl_table(spl_header); |
c30df9c8 | 1098 | #endif /* CONFIG_SYSCTL */ |
1099 | ||
57d1b188 | 1100 | EXIT; |
1101 | } |