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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) Proc Implementation. | |
25 | \*****************************************************************************/ | |
715f6251 | 26 | |
ae4c36ad BB |
27 | #include <sys/systeminfo.h> |
28 | #include <sys/kstat.h> | |
29 | #include <linux/kmod.h> | |
30 | #include <linux/seq_file.h> | |
31 | #include <linux/proc_compat.h> | |
80093b6f | 32 | #include <linux/version.h> |
55abb092 | 33 | #include <spl-debug.h> |
57d1b188 | 34 | |
b17edc10 BB |
35 | #ifdef SS_DEBUG_SUBSYS |
36 | #undef SS_DEBUG_SUBSYS | |
57d1b188 | 37 | #endif |
38 | ||
b17edc10 | 39 | #define SS_DEBUG_SUBSYS SS_PROC |
57d1b188 | 40 | |
80093b6f AX |
41 | #if defined(CONSTIFY_PLUGIN) && LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0) |
42 | typedef struct ctl_table __no_const spl_ctl_table; | |
43 | #else | |
44 | typedef struct ctl_table spl_ctl_table; | |
45 | #endif | |
46 | ||
404992e3 | 47 | #ifdef DEBUG_KMEM |
57d1b188 | 48 | static unsigned long table_min = 0; |
49 | static unsigned long table_max = ~0; | |
404992e3 | 50 | #endif |
51 | ||
52 | #ifdef CONFIG_SYSCTL | |
53 | static struct ctl_table_header *spl_header = NULL; | |
c30df9c8 | 54 | #endif /* CONFIG_SYSCTL */ |
55 | ||
c30df9c8 | 56 | static struct proc_dir_entry *proc_spl = NULL; |
04a479f7 | 57 | #ifdef DEBUG_KMEM |
c30df9c8 | 58 | static struct proc_dir_entry *proc_spl_kmem = NULL; |
ff449ac4 | 59 | static struct proc_dir_entry *proc_spl_kmem_slab = NULL; |
c30df9c8 | 60 | #endif /* DEBUG_KMEM */ |
c30df9c8 | 61 | struct proc_dir_entry *proc_spl_kstat = NULL; |
57d1b188 | 62 | |
79a3bf13 | 63 | #ifdef HAVE_CTL_NAME |
57d86234 | 64 | #ifdef HAVE_CTL_UNNUMBERED |
65 | ||
66 | #define CTL_SPL CTL_UNNUMBERED | |
67 | #define CTL_SPL_DEBUG CTL_UNNUMBERED | |
36b313da | 68 | #define CTL_SPL_VM CTL_UNNUMBERED |
57d86234 | 69 | #define CTL_SPL_MUTEX CTL_UNNUMBERED |
70 | #define CTL_SPL_KMEM CTL_UNNUMBERED | |
71 | #define CTL_SPL_KSTAT CTL_UNNUMBERED | |
72 | ||
73 | #define CTL_VERSION CTL_UNNUMBERED /* Version */ | |
74 | #define CTL_HOSTID CTL_UNNUMBERED /* Host id by /usr/bin/hostid */ | |
75 | #define CTL_HW_SERIAL CTL_UNNUMBERED /* HW serial number by hostid */ | |
d1ff2312 | 76 | #define CTL_KALLSYMS CTL_UNNUMBERED /* kallsyms_lookup_name addr */ |
57d86234 | 77 | |
78 | #define CTL_DEBUG_SUBSYS CTL_UNNUMBERED /* Debug subsystem */ | |
79 | #define CTL_DEBUG_MASK CTL_UNNUMBERED /* Debug mask */ | |
80 | #define CTL_DEBUG_PRINTK CTL_UNNUMBERED /* All messages to console */ | |
81 | #define CTL_DEBUG_MB CTL_UNNUMBERED /* Debug buffer size */ | |
82 | #define CTL_DEBUG_BINARY CTL_UNNUMBERED /* Binary data in buffer */ | |
83 | #define CTL_DEBUG_CATASTROPHE CTL_UNNUMBERED /* Set if BUG'd or panic'd */ | |
84 | #define CTL_DEBUG_PANIC_ON_BUG CTL_UNNUMBERED /* Should panic on BUG */ | |
85 | #define CTL_DEBUG_PATH CTL_UNNUMBERED /* Dump log location */ | |
86 | #define CTL_DEBUG_DUMP CTL_UNNUMBERED /* Dump debug buffer to file */ | |
87 | #define CTL_DEBUG_FORCE_BUG CTL_UNNUMBERED /* Hook to force a BUG */ | |
88 | #define CTL_DEBUG_STACK_SIZE CTL_UNNUMBERED /* Max observed stack size */ | |
89 | ||
90 | #define CTL_CONSOLE_RATELIMIT CTL_UNNUMBERED /* Ratelimit console messages */ | |
91 | #define CTL_CONSOLE_MAX_DELAY_CS CTL_UNNUMBERED /* Max delay skip messages */ | |
92 | #define CTL_CONSOLE_MIN_DELAY_CS CTL_UNNUMBERED /* Init delay skip messages */ | |
93 | #define CTL_CONSOLE_BACKOFF CTL_UNNUMBERED /* Delay increase factor */ | |
94 | ||
36b313da BB |
95 | #define CTL_VM_MINFREE CTL_UNNUMBERED /* Minimum free memory */ |
96 | #define CTL_VM_DESFREE CTL_UNNUMBERED /* Desired free memory */ | |
97 | #define CTL_VM_LOTSFREE CTL_UNNUMBERED /* Lots of free memory */ | |
98 | #define CTL_VM_NEEDFREE CTL_UNNUMBERED /* Need free memory */ | |
99 | #define CTL_VM_SWAPFS_MINFREE CTL_UNNUMBERED /* Minimum swapfs memory */ | |
36b313da | 100 | #define CTL_VM_SWAPFS_RESERVE CTL_UNNUMBERED /* Reserved swapfs memory */ |
4ab13d3b BB |
101 | #define CTL_VM_AVAILRMEM CTL_UNNUMBERED /* Easily available memory */ |
102 | #define CTL_VM_FREEMEM CTL_UNNUMBERED /* Free memory */ | |
103 | #define CTL_VM_PHYSMEM CTL_UNNUMBERED /* Total physical memory */ | |
36b313da | 104 | |
57d86234 | 105 | #ifdef DEBUG_KMEM |
106 | #define CTL_KMEM_KMEMUSED CTL_UNNUMBERED /* Alloc'd kmem bytes */ | |
107 | #define CTL_KMEM_KMEMMAX CTL_UNNUMBERED /* Max alloc'd by kmem bytes */ | |
108 | #define CTL_KMEM_VMEMUSED CTL_UNNUMBERED /* Alloc'd vmem bytes */ | |
109 | #define CTL_KMEM_VMEMMAX CTL_UNNUMBERED /* Max alloc'd by vmem bytes */ | |
3336e29c BB |
110 | #define CTL_KMEM_SLAB_KMEMTOTAL CTL_UNNUMBERED /* Total kmem slab size */ |
111 | #define CTL_KMEM_SLAB_KMEMALLOC CTL_UNNUMBERED /* Alloc'd kmem slab size */ | |
112 | #define CTL_KMEM_SLAB_KMEMMAX CTL_UNNUMBERED /* Max kmem slab size */ | |
113 | #define CTL_KMEM_SLAB_VMEMTOTAL CTL_UNNUMBERED /* Total vmem slab size */ | |
114 | #define CTL_KMEM_SLAB_VMEMALLOC CTL_UNNUMBERED /* Alloc'd vmem slab size */ | |
115 | #define CTL_KMEM_SLAB_VMEMMAX CTL_UNNUMBERED /* Max vmem slab size */ | |
57d86234 | 116 | #endif |
117 | ||
57d86234 | 118 | #else /* HAVE_CTL_UNNUMBERED */ |
119 | ||
36b313da BB |
120 | enum { |
121 | CTL_SPL = 0x87, | |
122 | CTL_SPL_DEBUG = 0x88, | |
123 | CTL_SPL_VM = 0x89, | |
124 | CTL_SPL_MUTEX = 0x90, | |
125 | CTL_SPL_KMEM = 0x91, | |
126 | CTL_SPL_KSTAT = 0x92, | |
127 | }; | |
9ab1ac14 | 128 | |
57d1b188 | 129 | enum { |
36b313da BB |
130 | CTL_VERSION = 1, /* Version */ |
131 | CTL_HOSTID, /* Host id reported by /usr/bin/hostid */ | |
132 | CTL_HW_SERIAL, /* Hardware serial number from hostid */ | |
d1ff2312 | 133 | CTL_KALLSYMS, /* Address of kallsyms_lookup_name */ |
36b313da | 134 | |
4b2220f0 | 135 | #ifdef DEBUG_LOG |
36b313da BB |
136 | CTL_DEBUG_SUBSYS, /* Debug subsystem */ |
137 | CTL_DEBUG_MASK, /* Debug mask */ | |
138 | CTL_DEBUG_PRINTK, /* Force all messages to console */ | |
139 | CTL_DEBUG_MB, /* Debug buffer size */ | |
140 | CTL_DEBUG_BINARY, /* Include binary data in buffer */ | |
141 | CTL_DEBUG_CATASTROPHE, /* Set if we have BUG'd or panic'd */ | |
142 | CTL_DEBUG_PANIC_ON_BUG, /* Set if we should panic on BUG */ | |
143 | CTL_DEBUG_PATH, /* Dump log location */ | |
144 | CTL_DEBUG_DUMP, /* Dump debug buffer to file */ | |
145 | CTL_DEBUG_FORCE_BUG, /* Hook to force a BUG */ | |
146 | CTL_DEBUG_STACK_SIZE, /* Max observed stack size */ | |
4b2220f0 | 147 | #endif |
36b313da BB |
148 | |
149 | CTL_CONSOLE_RATELIMIT, /* Ratelimit console messages */ | |
150 | CTL_CONSOLE_MAX_DELAY_CS, /* Max delay which we skip messages */ | |
151 | CTL_CONSOLE_MIN_DELAY_CS, /* Init delay which we skip messages */ | |
152 | CTL_CONSOLE_BACKOFF, /* Delay increase factor */ | |
153 | ||
154 | CTL_VM_MINFREE, /* Minimum free memory threshold */ | |
155 | CTL_VM_DESFREE, /* Desired free memory threshold */ | |
156 | CTL_VM_LOTSFREE, /* Lots of free memory threshold */ | |
157 | CTL_VM_NEEDFREE, /* Need free memory deficit */ | |
158 | CTL_VM_SWAPFS_MINFREE, /* Minimum swapfs memory */ | |
36b313da | 159 | CTL_VM_SWAPFS_RESERVE, /* Reserved swapfs memory */ |
4ab13d3b BB |
160 | CTL_VM_AVAILRMEM, /* Easily available memory */ |
161 | CTL_VM_FREEMEM, /* Free memory */ | |
162 | CTL_VM_PHYSMEM, /* Total physical memory */ | |
9ab1ac14 | 163 | |
57d1b188 | 164 | #ifdef DEBUG_KMEM |
36b313da BB |
165 | CTL_KMEM_KMEMUSED, /* Alloc'd kmem bytes */ |
166 | CTL_KMEM_KMEMMAX, /* Max alloc'd by kmem bytes */ | |
167 | CTL_KMEM_VMEMUSED, /* Alloc'd vmem bytes */ | |
168 | CTL_KMEM_VMEMMAX, /* Max alloc'd by vmem bytes */ | |
3336e29c BB |
169 | CTL_KMEM_SLAB_KMEMTOTAL, /* Total kmem slab size */ |
170 | CTL_KMEM_SLAB_KMEMALLOC, /* Alloc'd kmem slab size */ | |
171 | CTL_KMEM_SLAB_KMEMMAX, /* Max kmem slab size */ | |
172 | CTL_KMEM_SLAB_VMEMTOTAL, /* Total vmem slab size */ | |
173 | CTL_KMEM_SLAB_VMEMALLOC, /* Alloc'd vmem slab size */ | |
174 | CTL_KMEM_SLAB_VMEMMAX, /* Max vmem slab size */ | |
57d1b188 | 175 | #endif |
57d1b188 | 176 | }; |
57d86234 | 177 | #endif /* HAVE_CTL_UNNUMBERED */ |
79a3bf13 | 178 | #endif /* HAVE_CTL_NAME */ |
57d1b188 | 179 | |
180 | static int | |
181 | proc_copyin_string(char *kbuffer, int kbuffer_size, | |
182 | const char *ubuffer, int ubuffer_size) | |
183 | { | |
184 | int size; | |
185 | ||
186 | if (ubuffer_size > kbuffer_size) | |
187 | return -EOVERFLOW; | |
188 | ||
189 | if (copy_from_user((void *)kbuffer, (void *)ubuffer, ubuffer_size)) | |
190 | return -EFAULT; | |
191 | ||
192 | /* strip trailing whitespace */ | |
193 | size = strnlen(kbuffer, ubuffer_size); | |
194 | while (size-- >= 0) | |
195 | if (!isspace(kbuffer[size])) | |
196 | break; | |
197 | ||
198 | /* empty string */ | |
199 | if (size < 0) | |
200 | return -EINVAL; | |
201 | ||
202 | /* no space to terminate */ | |
203 | if (size == kbuffer_size) | |
204 | return -EOVERFLOW; | |
205 | ||
206 | kbuffer[size + 1] = 0; | |
207 | return 0; | |
208 | } | |
209 | ||
210 | static int | |
211 | proc_copyout_string(char *ubuffer, int ubuffer_size, | |
212 | const char *kbuffer, char *append) | |
213 | { | |
214 | /* NB if 'append' != NULL, it's a single character to append to the | |
215 | * copied out string - usually "\n", for /proc entries and | |
216 | * (i.e. a terminating zero byte) for sysctl entries | |
217 | */ | |
218 | int size = MIN(strlen(kbuffer), ubuffer_size); | |
219 | ||
220 | if (copy_to_user(ubuffer, kbuffer, size)) | |
221 | return -EFAULT; | |
222 | ||
223 | if (append != NULL && size < ubuffer_size) { | |
224 | if (copy_to_user(ubuffer + size, append, 1)) | |
225 | return -EFAULT; | |
226 | ||
227 | size++; | |
228 | } | |
229 | ||
230 | return size; | |
231 | } | |
232 | ||
4b2220f0 | 233 | #ifdef DEBUG_LOG |
3977f837 | 234 | SPL_PROC_HANDLER(proc_dobitmasks) |
57d1b188 | 235 | { |
236 | unsigned long *mask = table->data; | |
237 | int is_subsys = (mask == &spl_debug_subsys) ? 1 : 0; | |
238 | int is_printk = (mask == &spl_debug_printk) ? 1 : 0; | |
239 | int size = 512, rc; | |
240 | char *str; | |
b17edc10 | 241 | SENTRY; |
57d1b188 | 242 | |
243 | str = kmem_alloc(size, KM_SLEEP); | |
244 | if (str == NULL) | |
b17edc10 | 245 | SRETURN(-ENOMEM); |
57d1b188 | 246 | |
247 | if (write) { | |
248 | rc = proc_copyin_string(str, size, buffer, *lenp); | |
249 | if (rc < 0) | |
b17edc10 | 250 | SRETURN(rc); |
57d1b188 | 251 | |
252 | rc = spl_debug_str2mask(mask, str, is_subsys); | |
253 | /* Always print BUG/ASSERT to console, so keep this mask */ | |
254 | if (is_printk) | |
b17edc10 | 255 | *mask |= SD_EMERG; |
57d1b188 | 256 | |
257 | *ppos += *lenp; | |
258 | } else { | |
259 | rc = spl_debug_mask2str(str, size, *mask, is_subsys); | |
260 | if (*ppos >= rc) | |
261 | rc = 0; | |
262 | else | |
263 | rc = proc_copyout_string(buffer, *lenp, | |
264 | str + *ppos, "\n"); | |
265 | if (rc >= 0) { | |
266 | *lenp = rc; | |
267 | *ppos += rc; | |
268 | } | |
269 | } | |
270 | ||
271 | kmem_free(str, size); | |
b17edc10 | 272 | SRETURN(rc); |
57d1b188 | 273 | } |
274 | ||
3977f837 | 275 | SPL_PROC_HANDLER(proc_debug_mb) |
57d1b188 | 276 | { |
277 | char str[32]; | |
278 | int rc, len; | |
b17edc10 | 279 | SENTRY; |
57d1b188 | 280 | |
281 | if (write) { | |
282 | rc = proc_copyin_string(str, sizeof(str), buffer, *lenp); | |
283 | if (rc < 0) | |
b17edc10 | 284 | SRETURN(rc); |
57d1b188 | 285 | |
286 | rc = spl_debug_set_mb(simple_strtoul(str, NULL, 0)); | |
287 | *ppos += *lenp; | |
288 | } else { | |
289 | len = snprintf(str, sizeof(str), "%d", spl_debug_get_mb()); | |
290 | if (*ppos >= len) | |
291 | rc = 0; | |
292 | else | |
3977f837 | 293 | rc = proc_copyout_string(buffer,*lenp,str+*ppos,"\n"); |
57d1b188 | 294 | |
295 | if (rc >= 0) { | |
296 | *lenp = rc; | |
297 | *ppos += rc; | |
298 | } | |
299 | } | |
300 | ||
b17edc10 | 301 | SRETURN(rc); |
57d1b188 | 302 | } |
303 | ||
3977f837 | 304 | SPL_PROC_HANDLER(proc_dump_kernel) |
57d1b188 | 305 | { |
b17edc10 | 306 | SENTRY; |
57d1b188 | 307 | |
308 | if (write) { | |
7fea96c0 | 309 | spl_debug_dumplog(0); |
57d1b188 | 310 | *ppos += *lenp; |
311 | } else { | |
312 | *lenp = 0; | |
313 | } | |
314 | ||
b17edc10 | 315 | SRETURN(0); |
57d1b188 | 316 | } |
317 | ||
3977f837 | 318 | SPL_PROC_HANDLER(proc_force_bug) |
57d1b188 | 319 | { |
b17edc10 | 320 | SENTRY; |
57d1b188 | 321 | |
55abb092 BB |
322 | if (write) |
323 | PANIC("Crashing due to forced panic\n"); | |
324 | else | |
57d1b188 | 325 | *lenp = 0; |
57d1b188 | 326 | |
b17edc10 | 327 | SRETURN(0); |
57d1b188 | 328 | } |
329 | ||
3977f837 | 330 | SPL_PROC_HANDLER(proc_console_max_delay_cs) |
57d1b188 | 331 | { |
332 | int rc, max_delay_cs; | |
80093b6f | 333 | spl_ctl_table dummy = *table; |
57d1b188 | 334 | long d; |
b17edc10 | 335 | SENTRY; |
57d1b188 | 336 | |
337 | dummy.data = &max_delay_cs; | |
338 | dummy.proc_handler = &proc_dointvec; | |
339 | ||
340 | if (write) { | |
341 | max_delay_cs = 0; | |
3977f837 | 342 | rc = spl_proc_dointvec(&dummy,write,filp,buffer,lenp,ppos); |
57d1b188 | 343 | if (rc < 0) |
b17edc10 | 344 | SRETURN(rc); |
57d1b188 | 345 | |
346 | if (max_delay_cs <= 0) | |
b17edc10 | 347 | SRETURN(-EINVAL); |
57d1b188 | 348 | |
349 | d = (max_delay_cs * HZ) / 100; | |
350 | if (d == 0 || d < spl_console_min_delay) | |
b17edc10 | 351 | SRETURN(-EINVAL); |
57d1b188 | 352 | |
353 | spl_console_max_delay = d; | |
354 | } else { | |
355 | max_delay_cs = (spl_console_max_delay * 100) / HZ; | |
3977f837 | 356 | rc = spl_proc_dointvec(&dummy,write,filp,buffer,lenp,ppos); |
57d1b188 | 357 | } |
358 | ||
b17edc10 | 359 | SRETURN(rc); |
57d1b188 | 360 | } |
361 | ||
3977f837 | 362 | SPL_PROC_HANDLER(proc_console_min_delay_cs) |
57d1b188 | 363 | { |
364 | int rc, min_delay_cs; | |
80093b6f | 365 | spl_ctl_table dummy = *table; |
57d1b188 | 366 | long d; |
b17edc10 | 367 | SENTRY; |
57d1b188 | 368 | |
369 | dummy.data = &min_delay_cs; | |
370 | dummy.proc_handler = &proc_dointvec; | |
371 | ||
372 | if (write) { | |
373 | min_delay_cs = 0; | |
3977f837 | 374 | rc = spl_proc_dointvec(&dummy,write,filp,buffer,lenp,ppos); |
57d1b188 | 375 | if (rc < 0) |
b17edc10 | 376 | SRETURN(rc); |
57d1b188 | 377 | |
378 | if (min_delay_cs <= 0) | |
b17edc10 | 379 | SRETURN(-EINVAL); |
57d1b188 | 380 | |
381 | d = (min_delay_cs * HZ) / 100; | |
382 | if (d == 0 || d > spl_console_max_delay) | |
b17edc10 | 383 | SRETURN(-EINVAL); |
57d1b188 | 384 | |
385 | spl_console_min_delay = d; | |
386 | } else { | |
387 | min_delay_cs = (spl_console_min_delay * 100) / HZ; | |
3977f837 | 388 | rc = spl_proc_dointvec(&dummy,write,filp,buffer,lenp,ppos); |
57d1b188 | 389 | } |
390 | ||
b17edc10 | 391 | SRETURN(rc); |
57d1b188 | 392 | } |
393 | ||
3977f837 | 394 | SPL_PROC_HANDLER(proc_console_backoff) |
57d1b188 | 395 | { |
396 | int rc, backoff; | |
80093b6f | 397 | spl_ctl_table dummy = *table; |
b17edc10 | 398 | SENTRY; |
57d1b188 | 399 | |
400 | dummy.data = &backoff; | |
401 | dummy.proc_handler = &proc_dointvec; | |
402 | ||
403 | if (write) { | |
404 | backoff = 0; | |
3977f837 | 405 | rc = spl_proc_dointvec(&dummy,write,filp,buffer,lenp,ppos); |
57d1b188 | 406 | if (rc < 0) |
b17edc10 | 407 | SRETURN(rc); |
57d1b188 | 408 | |
409 | if (backoff <= 0) | |
b17edc10 | 410 | SRETURN(-EINVAL); |
57d1b188 | 411 | |
412 | spl_console_backoff = backoff; | |
413 | } else { | |
414 | backoff = spl_console_backoff; | |
3977f837 | 415 | rc = spl_proc_dointvec(&dummy,write,filp,buffer,lenp,ppos); |
57d1b188 | 416 | } |
417 | ||
b17edc10 | 418 | SRETURN(rc); |
57d1b188 | 419 | } |
4b2220f0 | 420 | #endif /* DEBUG_LOG */ |
57d1b188 | 421 | |
c6dc93d6 | 422 | #ifdef DEBUG_KMEM |
3977f837 | 423 | SPL_PROC_HANDLER(proc_domemused) |
57d1b188 | 424 | { |
425 | int rc = 0; | |
426 | unsigned long min = 0, max = ~0, val; | |
80093b6f | 427 | spl_ctl_table dummy = *table; |
b17edc10 | 428 | SENTRY; |
57d1b188 | 429 | |
430 | dummy.data = &val; | |
431 | dummy.proc_handler = &proc_dointvec; | |
432 | dummy.extra1 = &min; | |
433 | dummy.extra2 = &max; | |
434 | ||
435 | if (write) { | |
436 | *ppos += *lenp; | |
437 | } else { | |
d04c8a56 | 438 | # ifdef HAVE_ATOMIC64_T |
550f1705 | 439 | val = atomic64_read((atomic64_t *)table->data); |
d04c8a56 BB |
440 | # else |
441 | val = atomic_read((atomic_t *)table->data); | |
442 | # endif /* HAVE_ATOMIC64_T */ | |
3977f837 BB |
443 | rc = spl_proc_doulongvec_minmax(&dummy, write, filp, |
444 | buffer, lenp, ppos); | |
57d1b188 | 445 | } |
446 | ||
b17edc10 | 447 | SRETURN(rc); |
57d1b188 | 448 | } |
3336e29c BB |
449 | |
450 | SPL_PROC_HANDLER(proc_doslab) | |
451 | { | |
452 | int rc = 0; | |
453 | unsigned long min = 0, max = ~0, val = 0, mask; | |
80093b6f | 454 | spl_ctl_table dummy = *table; |
3336e29c BB |
455 | spl_kmem_cache_t *skc; |
456 | SENTRY; | |
457 | ||
458 | dummy.data = &val; | |
459 | dummy.proc_handler = &proc_dointvec; | |
460 | dummy.extra1 = &min; | |
461 | dummy.extra2 = &max; | |
462 | ||
463 | if (write) { | |
464 | *ppos += *lenp; | |
465 | } else { | |
466 | down_read(&spl_kmem_cache_sem); | |
467 | mask = (unsigned long)table->data; | |
468 | ||
469 | list_for_each_entry(skc, &spl_kmem_cache_list, skc_list) { | |
470 | ||
471 | /* Only use slabs of the correct kmem/vmem type */ | |
472 | if (!(skc->skc_flags & mask)) | |
473 | continue; | |
474 | ||
475 | /* Sum the specified field for selected slabs */ | |
476 | switch (mask & (KMC_TOTAL | KMC_ALLOC | KMC_MAX)) { | |
477 | case KMC_TOTAL: | |
478 | val += skc->skc_slab_size * skc->skc_slab_total; | |
479 | break; | |
480 | case KMC_ALLOC: | |
481 | val += skc->skc_obj_size * skc->skc_obj_alloc; | |
482 | break; | |
483 | case KMC_MAX: | |
484 | val += skc->skc_obj_size * skc->skc_obj_max; | |
485 | break; | |
486 | } | |
487 | } | |
488 | ||
489 | up_read(&spl_kmem_cache_sem); | |
490 | rc = spl_proc_doulongvec_minmax(&dummy, write, filp, | |
491 | buffer, lenp, ppos); | |
492 | } | |
493 | ||
494 | SRETURN(rc); | |
495 | } | |
c6dc93d6 | 496 | #endif /* DEBUG_KMEM */ |
57d1b188 | 497 | |
3977f837 | 498 | SPL_PROC_HANDLER(proc_dohostid) |
57d1b188 | 499 | { |
500 | int len, rc = 0; | |
57d1b188 | 501 | char *end, str[32]; |
b17edc10 | 502 | SENTRY; |
57d1b188 | 503 | |
504 | if (write) { | |
3977f837 | 505 | /* We can't use spl_proc_doulongvec_minmax() in the write |
c95b308d | 506 | * case here because hostid while a hex value has no |
a0b5ae8a | 507 | * leading 0x which confuses the helper function. */ |
57d1b188 | 508 | rc = proc_copyin_string(str, sizeof(str), buffer, *lenp); |
509 | if (rc < 0) | |
b17edc10 | 510 | SRETURN(rc); |
57d1b188 | 511 | |
fa6f7d8f | 512 | spl_hostid = simple_strtoul(str, &end, 16); |
a0b5ae8a | 513 | if (str == end) |
b17edc10 | 514 | SRETURN(-EINVAL); |
57d1b188 | 515 | |
fa6f7d8f | 516 | (void) snprintf(hw_serial, HW_HOSTID_LEN, "%lu", spl_hostid); |
a0b5ae8a | 517 | hw_serial[HW_HOSTID_LEN - 1] = '\0'; |
57d1b188 | 518 | *ppos += *lenp; |
519 | } else { | |
c95b308d | 520 | len = snprintf(str, sizeof(str), "%lx", spl_hostid); |
57d1b188 | 521 | if (*ppos >= len) |
522 | rc = 0; | |
523 | else | |
3977f837 | 524 | rc = proc_copyout_string(buffer,*lenp,str+*ppos,"\n"); |
57d1b188 | 525 | |
526 | if (rc >= 0) { | |
527 | *lenp = rc; | |
528 | *ppos += rc; | |
529 | } | |
530 | } | |
531 | ||
b17edc10 | 532 | SRETURN(rc); |
57d1b188 | 533 | } |
534 | ||
d1ff2312 | 535 | #ifndef HAVE_KALLSYMS_LOOKUP_NAME |
3977f837 BB |
536 | SPL_PROC_HANDLER(proc_dokallsyms_lookup_name) |
537 | { | |
d1ff2312 BB |
538 | int len, rc = 0; |
539 | char *end, str[32]; | |
b17edc10 | 540 | SENTRY; |
d1ff2312 BB |
541 | |
542 | if (write) { | |
543 | /* This may only be set once at module load time */ | |
96dded38 | 544 | if (spl_kallsyms_lookup_name_fn != SYMBOL_POISON) |
b17edc10 | 545 | SRETURN(-EEXIST); |
d1ff2312 | 546 | |
3977f837 | 547 | /* We can't use spl_proc_doulongvec_minmax() in the write |
c95b308d | 548 | * case here because the address while a hex value has no |
d1ff2312 BB |
549 | * leading 0x which confuses the helper function. */ |
550 | rc = proc_copyin_string(str, sizeof(str), buffer, *lenp); | |
551 | if (rc < 0) | |
b17edc10 | 552 | SRETURN(rc); |
d1ff2312 BB |
553 | |
554 | spl_kallsyms_lookup_name_fn = | |
555 | (kallsyms_lookup_name_t)simple_strtoul(str, &end, 16); | |
034f1b33 BB |
556 | wake_up(&spl_kallsyms_lookup_name_waitq); |
557 | ||
d1ff2312 | 558 | if (str == end) |
b17edc10 | 559 | SRETURN(-EINVAL); |
d1ff2312 BB |
560 | |
561 | *ppos += *lenp; | |
562 | } else { | |
563 | len = snprintf(str, sizeof(str), "%lx", | |
564 | (unsigned long)spl_kallsyms_lookup_name_fn); | |
565 | if (*ppos >= len) | |
566 | rc = 0; | |
567 | else | |
568 | rc = proc_copyout_string(buffer,*lenp,str+*ppos,"\n"); | |
569 | ||
570 | if (rc >= 0) { | |
571 | *lenp = rc; | |
572 | *ppos += rc; | |
573 | } | |
574 | } | |
575 | ||
b17edc10 | 576 | SRETURN(rc); |
d1ff2312 BB |
577 | } |
578 | #endif /* HAVE_KALLSYMS_LOOKUP_NAME */ | |
579 | ||
3977f837 | 580 | SPL_PROC_HANDLER(proc_doavailrmem) |
4ab13d3b BB |
581 | { |
582 | int len, rc = 0; | |
583 | char str[32]; | |
b17edc10 | 584 | SENTRY; |
4ab13d3b BB |
585 | |
586 | if (write) { | |
587 | *ppos += *lenp; | |
588 | } else { | |
3977f837 BB |
589 | len = snprintf(str, sizeof(str), "%lu", |
590 | (unsigned long)availrmem); | |
4ab13d3b BB |
591 | if (*ppos >= len) |
592 | rc = 0; | |
593 | else | |
3977f837 | 594 | rc = proc_copyout_string(buffer,*lenp,str+*ppos,"\n"); |
4ab13d3b BB |
595 | |
596 | if (rc >= 0) { | |
597 | *lenp = rc; | |
598 | *ppos += rc; | |
599 | } | |
600 | } | |
601 | ||
b17edc10 | 602 | SRETURN(rc); |
4ab13d3b BB |
603 | } |
604 | ||
3977f837 | 605 | SPL_PROC_HANDLER(proc_dofreemem) |
4ab13d3b BB |
606 | { |
607 | int len, rc = 0; | |
608 | char str[32]; | |
b17edc10 | 609 | SENTRY; |
4ab13d3b BB |
610 | |
611 | if (write) { | |
612 | *ppos += *lenp; | |
613 | } else { | |
614 | len = snprintf(str, sizeof(str), "%lu", (unsigned long)freemem); | |
615 | if (*ppos >= len) | |
616 | rc = 0; | |
617 | else | |
3977f837 | 618 | rc = proc_copyout_string(buffer,*lenp,str+*ppos,"\n"); |
4ab13d3b BB |
619 | |
620 | if (rc >= 0) { | |
621 | *lenp = rc; | |
622 | *ppos += rc; | |
623 | } | |
624 | } | |
625 | ||
b17edc10 | 626 | SRETURN(rc); |
4ab13d3b BB |
627 | } |
628 | ||
ff449ac4 | 629 | #ifdef DEBUG_KMEM |
630 | static void | |
631 | slab_seq_show_headers(struct seq_file *f) | |
632 | { | |
d0a1038f BB |
633 | seq_printf(f, |
634 | "--------------------- cache ----------" | |
635 | "--------------------------------------------- " | |
636 | "----- slab ------ " | |
165f13c3 BB |
637 | "---- object ----- " |
638 | "--- emergency ---\n"); | |
d0a1038f BB |
639 | seq_printf(f, |
640 | "name " | |
641 | " flags size alloc slabsize objsize " | |
642 | "total alloc max " | |
165f13c3 BB |
643 | "total alloc max " |
644 | "dlock alloc max\n"); | |
ff449ac4 | 645 | } |
646 | ||
647 | static int | |
648 | slab_seq_show(struct seq_file *f, void *p) | |
649 | { | |
242f539a | 650 | spl_kmem_cache_t *skc = p; |
ff449ac4 | 651 | |
242f539a | 652 | ASSERT(skc->skc_magic == SKC_MAGIC); |
ff449ac4 | 653 | |
242f539a | 654 | spin_lock(&skc->skc_lock); |
d0a1038f BB |
655 | seq_printf(f, "%-36s ", skc->skc_name); |
656 | seq_printf(f, "0x%05lx %9lu %9lu %8u %8u " | |
165f13c3 | 657 | "%5lu %5lu %5lu %5lu %5lu %5lu %5lu %5lu %5lu\n", |
d0a1038f BB |
658 | (long unsigned)skc->skc_flags, |
659 | (long unsigned)(skc->skc_slab_size * skc->skc_slab_total), | |
660 | (long unsigned)(skc->skc_obj_size * skc->skc_obj_alloc), | |
661 | (unsigned)skc->skc_slab_size, | |
662 | (unsigned)skc->skc_obj_size, | |
663 | (long unsigned)skc->skc_slab_total, | |
664 | (long unsigned)skc->skc_slab_alloc, | |
665 | (long unsigned)skc->skc_slab_max, | |
666 | (long unsigned)skc->skc_obj_total, | |
667 | (long unsigned)skc->skc_obj_alloc, | |
e2dcc6e2 | 668 | (long unsigned)skc->skc_obj_max, |
165f13c3 | 669 | (long unsigned)skc->skc_obj_deadlock, |
e2dcc6e2 BB |
670 | (long unsigned)skc->skc_obj_emergency, |
671 | (long unsigned)skc->skc_obj_emergency_max); | |
242f539a BB |
672 | |
673 | spin_unlock(&skc->skc_lock); | |
ff449ac4 | 674 | |
675 | return 0; | |
676 | } | |
677 | ||
678 | static void * | |
679 | slab_seq_start(struct seq_file *f, loff_t *pos) | |
680 | { | |
681 | struct list_head *p; | |
682 | loff_t n = *pos; | |
b17edc10 | 683 | SENTRY; |
ff449ac4 | 684 | |
685 | down_read(&spl_kmem_cache_sem); | |
686 | if (!n) | |
687 | slab_seq_show_headers(f); | |
688 | ||
689 | p = spl_kmem_cache_list.next; | |
690 | while (n--) { | |
691 | p = p->next; | |
692 | if (p == &spl_kmem_cache_list) | |
b17edc10 | 693 | SRETURN(NULL); |
ff449ac4 | 694 | } |
695 | ||
b17edc10 | 696 | SRETURN(list_entry(p, spl_kmem_cache_t, skc_list)); |
ff449ac4 | 697 | } |
698 | ||
699 | static void * | |
700 | slab_seq_next(struct seq_file *f, void *p, loff_t *pos) | |
701 | { | |
702 | spl_kmem_cache_t *skc = p; | |
b17edc10 | 703 | SENTRY; |
ff449ac4 | 704 | |
705 | ++*pos; | |
b17edc10 | 706 | SRETURN((skc->skc_list.next == &spl_kmem_cache_list) ? |
3977f837 | 707 | NULL : list_entry(skc->skc_list.next,spl_kmem_cache_t,skc_list)); |
ff449ac4 | 708 | } |
709 | ||
710 | static void | |
711 | slab_seq_stop(struct seq_file *f, void *v) | |
712 | { | |
713 | up_read(&spl_kmem_cache_sem); | |
714 | } | |
715 | ||
716 | static struct seq_operations slab_seq_ops = { | |
717 | .show = slab_seq_show, | |
718 | .start = slab_seq_start, | |
719 | .next = slab_seq_next, | |
720 | .stop = slab_seq_stop, | |
721 | }; | |
722 | ||
723 | static int | |
724 | proc_slab_open(struct inode *inode, struct file *filp) | |
725 | { | |
726 | return seq_open(filp, &slab_seq_ops); | |
727 | } | |
728 | ||
729 | static struct file_operations proc_slab_operations = { | |
730 | .open = proc_slab_open, | |
731 | .read = seq_read, | |
732 | .llseek = seq_lseek, | |
733 | .release = seq_release, | |
734 | }; | |
735 | #endif /* DEBUG_KMEM */ | |
736 | ||
4b2220f0 | 737 | #ifdef DEBUG_LOG |
9ab1ac14 | 738 | static struct ctl_table spl_debug_table[] = { |
57d1b188 | 739 | { |
79a3bf13 | 740 | CTL_NAME (CTL_DEBUG_SUBSYS) |
9ab1ac14 | 741 | .procname = "subsystem", |
57d1b188 | 742 | .data = &spl_debug_subsys, |
743 | .maxlen = sizeof(unsigned long), | |
744 | .mode = 0644, | |
745 | .proc_handler = &proc_dobitmasks | |
746 | }, | |
747 | { | |
79a3bf13 | 748 | CTL_NAME (CTL_DEBUG_MASK) |
9ab1ac14 | 749 | .procname = "mask", |
57d1b188 | 750 | .data = &spl_debug_mask, |
751 | .maxlen = sizeof(unsigned long), | |
752 | .mode = 0644, | |
753 | .proc_handler = &proc_dobitmasks | |
754 | }, | |
755 | { | |
79a3bf13 | 756 | CTL_NAME (CTL_DEBUG_PRINTK) |
9ab1ac14 | 757 | .procname = "printk", |
57d1b188 | 758 | .data = &spl_debug_printk, |
759 | .maxlen = sizeof(unsigned long), | |
760 | .mode = 0644, | |
761 | .proc_handler = &proc_dobitmasks | |
762 | }, | |
763 | { | |
79a3bf13 | 764 | CTL_NAME (CTL_DEBUG_MB) |
9ab1ac14 | 765 | .procname = "mb", |
57d1b188 | 766 | .mode = 0644, |
767 | .proc_handler = &proc_debug_mb, | |
768 | }, | |
769 | { | |
79a3bf13 | 770 | CTL_NAME (CTL_DEBUG_BINARY) |
9ab1ac14 | 771 | .procname = "binary", |
57d1b188 | 772 | .data = &spl_debug_binary, |
773 | .maxlen = sizeof(int), | |
774 | .mode = 0644, | |
775 | .proc_handler = &proc_dointvec, | |
776 | }, | |
777 | { | |
79a3bf13 | 778 | CTL_NAME (CTL_DEBUG_CATASTROPHE) |
57d1b188 | 779 | .procname = "catastrophe", |
780 | .data = &spl_debug_catastrophe, | |
781 | .maxlen = sizeof(int), | |
782 | .mode = 0444, | |
783 | .proc_handler = &proc_dointvec, | |
784 | }, | |
785 | { | |
79a3bf13 | 786 | CTL_NAME (CTL_DEBUG_PANIC_ON_BUG) |
57d1b188 | 787 | .procname = "panic_on_bug", |
788 | .data = &spl_debug_panic_on_bug, | |
789 | .maxlen = sizeof(int), | |
790 | .mode = 0644, | |
791 | .proc_handler = &proc_dointvec | |
792 | }, | |
793 | { | |
79a3bf13 | 794 | CTL_NAME (CTL_DEBUG_PATH) |
9ab1ac14 | 795 | .procname = "path", |
57d1b188 | 796 | .data = spl_debug_file_path, |
797 | .maxlen = sizeof(spl_debug_file_path), | |
798 | .mode = 0644, | |
799 | .proc_handler = &proc_dostring, | |
800 | }, | |
801 | { | |
79a3bf13 | 802 | CTL_NAME (CTL_DEBUG_DUMP) |
9ab1ac14 | 803 | .procname = "dump", |
57d1b188 | 804 | .mode = 0200, |
805 | .proc_handler = &proc_dump_kernel, | |
806 | }, | |
79a3bf13 | 807 | { CTL_NAME (CTL_DEBUG_FORCE_BUG) |
57d1b188 | 808 | .procname = "force_bug", |
809 | .mode = 0200, | |
810 | .proc_handler = &proc_force_bug, | |
811 | }, | |
812 | { | |
79a3bf13 | 813 | CTL_NAME (CTL_CONSOLE_RATELIMIT) |
57d1b188 | 814 | .procname = "console_ratelimit", |
815 | .data = &spl_console_ratelimit, | |
816 | .maxlen = sizeof(int), | |
817 | .mode = 0644, | |
818 | .proc_handler = &proc_dointvec, | |
819 | }, | |
820 | { | |
79a3bf13 | 821 | CTL_NAME (CTL_CONSOLE_MAX_DELAY_CS) |
57d1b188 | 822 | .procname = "console_max_delay_centisecs", |
823 | .maxlen = sizeof(int), | |
824 | .mode = 0644, | |
825 | .proc_handler = &proc_console_max_delay_cs, | |
826 | }, | |
827 | { | |
79a3bf13 | 828 | CTL_NAME (CTL_CONSOLE_MIN_DELAY_CS) |
57d1b188 | 829 | .procname = "console_min_delay_centisecs", |
830 | .maxlen = sizeof(int), | |
831 | .mode = 0644, | |
832 | .proc_handler = &proc_console_min_delay_cs, | |
833 | }, | |
834 | { | |
79a3bf13 | 835 | CTL_NAME (CTL_CONSOLE_BACKOFF) |
57d1b188 | 836 | .procname = "console_backoff", |
837 | .maxlen = sizeof(int), | |
838 | .mode = 0644, | |
839 | .proc_handler = &proc_console_backoff, | |
840 | }, | |
841 | { | |
79a3bf13 | 842 | CTL_NAME (CTL_DEBUG_STACK_SIZE) |
57d1b188 | 843 | .procname = "stack_max", |
844 | .data = &spl_debug_stack, | |
845 | .maxlen = sizeof(int), | |
846 | .mode = 0444, | |
847 | .proc_handler = &proc_dointvec, | |
848 | }, | |
9ab1ac14 | 849 | {0}, |
850 | }; | |
4b2220f0 | 851 | #endif /* DEBUG_LOG */ |
9ab1ac14 | 852 | |
36b313da BB |
853 | static struct ctl_table spl_vm_table[] = { |
854 | { | |
79a3bf13 | 855 | CTL_NAME (CTL_VM_MINFREE) |
36b313da BB |
856 | .procname = "minfree", |
857 | .data = &minfree, | |
858 | .maxlen = sizeof(int), | |
859 | .mode = 0644, | |
860 | .proc_handler = &proc_dointvec, | |
861 | }, | |
862 | { | |
79a3bf13 | 863 | CTL_NAME (CTL_VM_DESFREE) |
36b313da BB |
864 | .procname = "desfree", |
865 | .data = &desfree, | |
866 | .maxlen = sizeof(int), | |
867 | .mode = 0644, | |
868 | .proc_handler = &proc_dointvec, | |
869 | }, | |
870 | { | |
79a3bf13 | 871 | CTL_NAME (CTL_VM_LOTSFREE) |
36b313da BB |
872 | .procname = "lotsfree", |
873 | .data = &lotsfree, | |
874 | .maxlen = sizeof(int), | |
875 | .mode = 0644, | |
876 | .proc_handler = &proc_dointvec, | |
877 | }, | |
878 | { | |
79a3bf13 | 879 | CTL_NAME (CTL_VM_NEEDFREE) |
36b313da BB |
880 | .procname = "needfree", |
881 | .data = &needfree, | |
882 | .maxlen = sizeof(int), | |
883 | .mode = 0444, | |
884 | .proc_handler = &proc_dointvec, | |
885 | }, | |
886 | { | |
79a3bf13 | 887 | CTL_NAME (CTL_VM_SWAPFS_MINFREE) |
36b313da BB |
888 | .procname = "swapfs_minfree", |
889 | .data = &swapfs_minfree, | |
890 | .maxlen = sizeof(int), | |
891 | .mode = 0644, | |
892 | .proc_handler = &proc_dointvec, | |
893 | }, | |
36b313da | 894 | { |
79a3bf13 | 895 | CTL_NAME (CTL_VM_SWAPFS_RESERVE) |
36b313da BB |
896 | .procname = "swapfs_reserve", |
897 | .data = &swapfs_reserve, | |
898 | .maxlen = sizeof(int), | |
899 | .mode = 0644, | |
900 | .proc_handler = &proc_dointvec, | |
901 | }, | |
902 | { | |
79a3bf13 | 903 | CTL_NAME (CTL_VM_AVAILRMEM) |
36b313da | 904 | .procname = "availrmem", |
4ab13d3b BB |
905 | .mode = 0444, |
906 | .proc_handler = &proc_doavailrmem, | |
907 | }, | |
908 | { | |
79a3bf13 | 909 | CTL_NAME (CTL_VM_FREEMEM) |
4ab13d3b BB |
910 | .procname = "freemem", |
911 | .data = (void *)2, | |
912 | .maxlen = sizeof(int), | |
913 | .mode = 0444, | |
914 | .proc_handler = &proc_dofreemem, | |
915 | }, | |
916 | { | |
79a3bf13 | 917 | CTL_NAME (CTL_VM_PHYSMEM) |
4ab13d3b BB |
918 | .procname = "physmem", |
919 | .data = &physmem, | |
36b313da BB |
920 | .maxlen = sizeof(int), |
921 | .mode = 0444, | |
922 | .proc_handler = &proc_dointvec, | |
923 | }, | |
924 | {0}, | |
925 | }; | |
926 | ||
57d1b188 | 927 | #ifdef DEBUG_KMEM |
9ab1ac14 | 928 | static struct ctl_table spl_kmem_table[] = { |
57d1b188 | 929 | { |
79a3bf13 | 930 | CTL_NAME (CTL_KMEM_KMEMUSED) |
57d1b188 | 931 | .procname = "kmem_used", |
932 | .data = &kmem_alloc_used, | |
d04c8a56 | 933 | # ifdef HAVE_ATOMIC64_T |
57d1b188 | 934 | .maxlen = sizeof(atomic64_t), |
d04c8a56 BB |
935 | # else |
936 | .maxlen = sizeof(atomic_t), | |
937 | # endif /* HAVE_ATOMIC64_T */ | |
57d1b188 | 938 | .mode = 0444, |
d04c8a56 | 939 | .proc_handler = &proc_domemused, |
57d1b188 | 940 | }, |
941 | { | |
79a3bf13 | 942 | CTL_NAME (CTL_KMEM_KMEMMAX) |
57d1b188 | 943 | .procname = "kmem_max", |
944 | .data = &kmem_alloc_max, | |
945 | .maxlen = sizeof(unsigned long), | |
946 | .extra1 = &table_min, | |
947 | .extra2 = &table_max, | |
948 | .mode = 0444, | |
949 | .proc_handler = &proc_doulongvec_minmax, | |
950 | }, | |
951 | { | |
79a3bf13 | 952 | CTL_NAME (CTL_KMEM_VMEMUSED) |
57d1b188 | 953 | .procname = "vmem_used", |
954 | .data = &vmem_alloc_used, | |
d04c8a56 | 955 | # ifdef HAVE_ATOMIC64_T |
57d1b188 | 956 | .maxlen = sizeof(atomic64_t), |
d04c8a56 BB |
957 | # else |
958 | .maxlen = sizeof(atomic_t), | |
959 | # endif /* HAVE_ATOMIC64_T */ | |
57d1b188 | 960 | .mode = 0444, |
d04c8a56 | 961 | .proc_handler = &proc_domemused, |
57d1b188 | 962 | }, |
963 | { | |
79a3bf13 | 964 | CTL_NAME (CTL_KMEM_VMEMMAX) |
57d1b188 | 965 | .procname = "vmem_max", |
966 | .data = &vmem_alloc_max, | |
967 | .maxlen = sizeof(unsigned long), | |
968 | .extra1 = &table_min, | |
969 | .extra2 = &table_max, | |
970 | .mode = 0444, | |
971 | .proc_handler = &proc_doulongvec_minmax, | |
972 | }, | |
3336e29c BB |
973 | { |
974 | CTL_NAME (CTL_KMEM_SLAB_KMEMTOTAL) | |
975 | .procname = "slab_kmem_total", | |
976 | .data = (void *)(KMC_KMEM | KMC_TOTAL), | |
977 | .maxlen = sizeof(unsigned long), | |
978 | .extra1 = &table_min, | |
979 | .extra2 = &table_max, | |
980 | .mode = 0444, | |
981 | .proc_handler = &proc_doslab, | |
982 | }, | |
983 | { | |
984 | CTL_NAME (CTL_KMEM_SLAB_KMEMALLOC) | |
985 | .procname = "slab_kmem_alloc", | |
986 | .data = (void *)(KMC_KMEM | KMC_ALLOC), | |
987 | .maxlen = sizeof(unsigned long), | |
988 | .extra1 = &table_min, | |
989 | .extra2 = &table_max, | |
990 | .mode = 0444, | |
991 | .proc_handler = &proc_doslab, | |
992 | }, | |
993 | { | |
994 | CTL_NAME (CTL_KMEM_SLAB_KMEMMAX) | |
995 | .procname = "slab_kmem_max", | |
996 | .data = (void *)(KMC_KMEM | KMC_MAX), | |
997 | .maxlen = sizeof(unsigned long), | |
998 | .extra1 = &table_min, | |
999 | .extra2 = &table_max, | |
1000 | .mode = 0444, | |
1001 | .proc_handler = &proc_doslab, | |
1002 | }, | |
1003 | { | |
1004 | CTL_NAME (CTL_KMEM_SLAB_VMEMTOTAL) | |
1005 | .procname = "slab_vmem_total", | |
1006 | .data = (void *)(KMC_VMEM | KMC_TOTAL), | |
1007 | .maxlen = sizeof(unsigned long), | |
1008 | .extra1 = &table_min, | |
1009 | .extra2 = &table_max, | |
1010 | .mode = 0444, | |
1011 | .proc_handler = &proc_doslab, | |
1012 | }, | |
1013 | { | |
1014 | CTL_NAME (CTL_KMEM_SLAB_VMEMALLOC) | |
1015 | .procname = "slab_vmem_alloc", | |
1016 | .data = (void *)(KMC_VMEM | KMC_ALLOC), | |
1017 | .maxlen = sizeof(unsigned long), | |
1018 | .extra1 = &table_min, | |
1019 | .extra2 = &table_max, | |
1020 | .mode = 0444, | |
1021 | .proc_handler = &proc_doslab, | |
1022 | }, | |
1023 | { | |
1024 | CTL_NAME (CTL_KMEM_SLAB_VMEMMAX) | |
1025 | .procname = "slab_vmem_max", | |
1026 | .data = (void *)(KMC_VMEM | KMC_MAX), | |
1027 | .maxlen = sizeof(unsigned long), | |
1028 | .extra1 = &table_min, | |
1029 | .extra2 = &table_max, | |
1030 | .mode = 0444, | |
1031 | .proc_handler = &proc_doslab, | |
1032 | }, | |
9ab1ac14 | 1033 | {0}, |
1034 | }; | |
04a479f7 | 1035 | #endif /* DEBUG_KMEM */ |
1036 | ||
04a479f7 | 1037 | static struct ctl_table spl_kstat_table[] = { |
1038 | {0}, | |
1039 | }; | |
9ab1ac14 | 1040 | |
1041 | static struct ctl_table spl_table[] = { | |
1042 | /* NB No .strategy entries have been provided since | |
1043 | * sysctl(8) prefers to go via /proc for portability. | |
1044 | */ | |
1045 | { | |
79a3bf13 | 1046 | CTL_NAME (CTL_VERSION) |
9ab1ac14 | 1047 | .procname = "version", |
1048 | .data = spl_version, | |
1049 | .maxlen = sizeof(spl_version), | |
1050 | .mode = 0444, | |
1051 | .proc_handler = &proc_dostring, | |
1052 | }, | |
57d1b188 | 1053 | { |
79a3bf13 | 1054 | CTL_NAME (CTL_HOSTID) |
57d1b188 | 1055 | .procname = "hostid", |
1056 | .data = &spl_hostid, | |
1057 | .maxlen = sizeof(unsigned long), | |
1058 | .mode = 0644, | |
1059 | .proc_handler = &proc_dohostid, | |
1060 | }, | |
1061 | { | |
79a3bf13 | 1062 | CTL_NAME (CTL_HW_SERIAL) |
57d1b188 | 1063 | .procname = "hw_serial", |
937879f1 | 1064 | .data = hw_serial, |
1065 | .maxlen = sizeof(hw_serial), | |
57d1b188 | 1066 | .mode = 0444, |
1067 | .proc_handler = &proc_dostring, | |
1068 | }, | |
d1ff2312 BB |
1069 | #ifndef HAVE_KALLSYMS_LOOKUP_NAME |
1070 | { | |
79a3bf13 | 1071 | CTL_NAME (CTL_KALLSYMS) |
d1ff2312 BB |
1072 | .procname = "kallsyms_lookup_name", |
1073 | .data = &spl_kallsyms_lookup_name_fn, | |
1074 | .maxlen = sizeof(unsigned long), | |
1075 | .mode = 0644, | |
1076 | .proc_handler = &proc_dokallsyms_lookup_name, | |
1077 | }, | |
1078 | #endif | |
4b2220f0 | 1079 | #ifdef DEBUG_LOG |
9ab1ac14 | 1080 | { |
79a3bf13 | 1081 | CTL_NAME (CTL_SPL_DEBUG) |
9ab1ac14 | 1082 | .procname = "debug", |
1083 | .mode = 0555, | |
1084 | .child = spl_debug_table, | |
1085 | }, | |
4b2220f0 | 1086 | #endif |
36b313da | 1087 | { |
79a3bf13 | 1088 | CTL_NAME (CTL_SPL_VM) |
36b313da BB |
1089 | .procname = "vm", |
1090 | .mode = 0555, | |
1091 | .child = spl_vm_table, | |
1092 | }, | |
9ab1ac14 | 1093 | #ifdef DEBUG_KMEM |
1094 | { | |
79a3bf13 | 1095 | CTL_NAME (CTL_SPL_KMEM) |
9ab1ac14 | 1096 | .procname = "kmem", |
1097 | .mode = 0555, | |
1098 | .child = spl_kmem_table, | |
1099 | }, | |
04a479f7 | 1100 | #endif |
04a479f7 | 1101 | { |
79a3bf13 | 1102 | CTL_NAME (CTL_SPL_KSTAT) |
04a479f7 | 1103 | .procname = "kstat", |
1104 | .mode = 0555, | |
1105 | .child = spl_kstat_table, | |
1106 | }, | |
57d1b188 | 1107 | { 0 }, |
1108 | }; | |
1109 | ||
9ab1ac14 | 1110 | static struct ctl_table spl_dir[] = { |
57d1b188 | 1111 | { |
79a3bf13 | 1112 | CTL_NAME (CTL_SPL) |
57d1b188 | 1113 | .procname = "spl", |
1114 | .mode = 0555, | |
1115 | .child = spl_table, | |
1116 | }, | |
57d86234 | 1117 | { 0 } |
1118 | }; | |
1119 | ||
1120 | static struct ctl_table spl_root[] = { | |
1121 | { | |
79a3bf13 | 1122 | CTL_NAME (CTL_KERN) |
57d86234 | 1123 | .procname = "kernel", |
1124 | .mode = 0555, | |
1125 | .child = spl_dir, | |
1126 | }, | |
1127 | { 0 } | |
57d1b188 | 1128 | }; |
1129 | ||
1130 | int | |
1114ae6a | 1131 | spl_proc_init(void) |
57d1b188 | 1132 | { |
404992e3 | 1133 | int rc = 0; |
b17edc10 | 1134 | SENTRY; |
57d1b188 | 1135 | |
1136 | #ifdef CONFIG_SYSCTL | |
57d86234 | 1137 | spl_header = spl_register_sysctl_table(spl_root, 0); |
57d1b188 | 1138 | if (spl_header == NULL) |
b17edc10 | 1139 | SRETURN(-EUNATCH); |
c30df9c8 | 1140 | #endif /* CONFIG_SYSCTL */ |
9ab1ac14 | 1141 | |
c30df9c8 | 1142 | proc_spl = proc_mkdir("spl", NULL); |
1143 | if (proc_spl == NULL) | |
b17edc10 | 1144 | SGOTO(out, rc = -EUNATCH); |
404992e3 | 1145 | |
04a479f7 | 1146 | #ifdef DEBUG_KMEM |
c30df9c8 | 1147 | proc_spl_kmem = proc_mkdir("kmem", proc_spl); |
1148 | if (proc_spl_kmem == NULL) | |
b17edc10 | 1149 | SGOTO(out, rc = -EUNATCH); |
ff449ac4 | 1150 | |
80093b6f AX |
1151 | proc_spl_kmem_slab = proc_create_data("slab", 0444, |
1152 | proc_spl_kmem, &proc_slab_operations, NULL); | |
ff449ac4 | 1153 | if (proc_spl_kmem_slab == NULL) |
b17edc10 | 1154 | SGOTO(out, rc = -EUNATCH); |
ff449ac4 | 1155 | |
04a479f7 | 1156 | #endif /* DEBUG_KMEM */ |
1157 | ||
c30df9c8 | 1158 | proc_spl_kstat = proc_mkdir("kstat", proc_spl); |
1159 | if (proc_spl_kstat == NULL) | |
b17edc10 | 1160 | SGOTO(out, rc = -EUNATCH); |
404992e3 | 1161 | out: |
c30df9c8 | 1162 | if (rc) { |
1163 | remove_proc_entry("kstat", proc_spl); | |
ff449ac4 | 1164 | #ifdef DEBUG_KMEM |
1165 | remove_proc_entry("slab", proc_spl_kmem); | |
c30df9c8 | 1166 | remove_proc_entry("kmem", proc_spl); |
055ffd98 | 1167 | #endif |
a02118a8 | 1168 | remove_proc_entry("spl", NULL); |
c30df9c8 | 1169 | #ifdef CONFIG_SYSCTL |
1170 | spl_unregister_sysctl_table(spl_header); | |
404992e3 | 1171 | #endif /* CONFIG_SYSCTL */ |
c30df9c8 | 1172 | } |
c30df9c8 | 1173 | |
b17edc10 | 1174 | SRETURN(rc); |
57d1b188 | 1175 | } |
1176 | ||
1177 | void | |
1114ae6a | 1178 | spl_proc_fini(void) |
57d1b188 | 1179 | { |
b17edc10 | 1180 | SENTRY; |
57d1b188 | 1181 | |
c30df9c8 | 1182 | remove_proc_entry("kstat", proc_spl); |
ff449ac4 | 1183 | #ifdef DEBUG_KMEM |
1184 | remove_proc_entry("slab", proc_spl_kmem); | |
c30df9c8 | 1185 | remove_proc_entry("kmem", proc_spl); |
055ffd98 | 1186 | #endif |
a02118a8 | 1187 | remove_proc_entry("spl", NULL); |
c30df9c8 | 1188 | |
57d1b188 | 1189 | #ifdef CONFIG_SYSCTL |
1190 | ASSERT(spl_header != NULL); | |
57d86234 | 1191 | spl_unregister_sysctl_table(spl_header); |
c30df9c8 | 1192 | #endif /* CONFIG_SYSCTL */ |
1193 | ||
b17edc10 | 1194 | SEXIT; |
57d1b188 | 1195 | } |