Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * sysctl.c: General linux system control interface | |
3 | * | |
4 | * Begun 24 March 1995, Stephen Tweedie | |
5 | * Added /proc support, Dec 1995 | |
6 | * Added bdflush entry and intvec min/max checking, 2/23/96, Tom Dyas. | |
7 | * Added hooks for /proc/sys/net (minor, minor patch), 96/4/1, Mike Shaver. | |
8 | * Added kernel/java-{interpreter,appletviewer}, 96/5/10, Mike Shaver. | |
9 | * Dynamic registration fixes, Stephen Tweedie. | |
10 | * Added kswapd-interval, ctrl-alt-del, printk stuff, 1/8/97, Chris Horn. | |
11 | * Made sysctl support optional via CONFIG_SYSCTL, 1/10/97, Chris | |
12 | * Horn. | |
13 | * Added proc_doulongvec_ms_jiffies_minmax, 09/08/99, Carlos H. Bauer. | |
14 | * Added proc_doulongvec_minmax, 09/08/99, Carlos H. Bauer. | |
15 | * Changed linked lists to use list.h instead of lists.h, 02/24/00, Bill | |
16 | * Wendling. | |
17 | * The list_for_each() macro wasn't appropriate for the sysctl loop. | |
18 | * Removed it and replaced it with older style, 03/23/00, Bill Wendling | |
19 | */ | |
20 | ||
1da177e4 LT |
21 | #include <linux/module.h> |
22 | #include <linux/mm.h> | |
23 | #include <linux/swap.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/sysctl.h> | |
5a04cca6 | 26 | #include <linux/bitmap.h> |
d33ed52d | 27 | #include <linux/signal.h> |
455cd5ab | 28 | #include <linux/printk.h> |
1da177e4 | 29 | #include <linux/proc_fs.h> |
72c2d582 | 30 | #include <linux/security.h> |
1da177e4 | 31 | #include <linux/ctype.h> |
dfec072e | 32 | #include <linux/kmemcheck.h> |
fd4b616b | 33 | #include <linux/kmemleak.h> |
62239ac2 | 34 | #include <linux/fs.h> |
1da177e4 LT |
35 | #include <linux/init.h> |
36 | #include <linux/kernel.h> | |
0296b228 | 37 | #include <linux/kobject.h> |
20380731 | 38 | #include <linux/net.h> |
1da177e4 LT |
39 | #include <linux/sysrq.h> |
40 | #include <linux/highuid.h> | |
41 | #include <linux/writeback.h> | |
3fff4c42 | 42 | #include <linux/ratelimit.h> |
76ab0f53 | 43 | #include <linux/compaction.h> |
1da177e4 | 44 | #include <linux/hugetlb.h> |
1da177e4 | 45 | #include <linux/initrd.h> |
0b77f5bf | 46 | #include <linux/key.h> |
1da177e4 LT |
47 | #include <linux/times.h> |
48 | #include <linux/limits.h> | |
49 | #include <linux/dcache.h> | |
6e006701 | 50 | #include <linux/dnotify.h> |
1da177e4 | 51 | #include <linux/syscalls.h> |
c748e134 | 52 | #include <linux/vmstat.h> |
c255d844 PM |
53 | #include <linux/nfs_fs.h> |
54 | #include <linux/acpi.h> | |
10a0a8d4 | 55 | #include <linux/reboot.h> |
b0fc494f | 56 | #include <linux/ftrace.h> |
cdd6c482 | 57 | #include <linux/perf_event.h> |
b2be84df | 58 | #include <linux/kprobes.h> |
b492e95b | 59 | #include <linux/pipe_fs_i.h> |
8e4228e1 | 60 | #include <linux/oom.h> |
17f60a7d | 61 | #include <linux/kmod.h> |
73efc039 | 62 | #include <linux/capability.h> |
40401530 | 63 | #include <linux/binfmts.h> |
1da177e4 LT |
64 | |
65 | #include <asm/uaccess.h> | |
66 | #include <asm/processor.h> | |
67 | ||
29cbc78b AK |
68 | #ifdef CONFIG_X86 |
69 | #include <asm/nmi.h> | |
0741f4d2 | 70 | #include <asm/stacktrace.h> |
6e7c4025 | 71 | #include <asm/io.h> |
29cbc78b | 72 | #endif |
d550bbd4 DH |
73 | #ifdef CONFIG_SPARC |
74 | #include <asm/setup.h> | |
75 | #endif | |
c55b7c3e DY |
76 | #ifdef CONFIG_BSD_PROCESS_ACCT |
77 | #include <linux/acct.h> | |
78 | #endif | |
4f0e056f DY |
79 | #ifdef CONFIG_RT_MUTEXES |
80 | #include <linux/rtmutex.h> | |
81 | #endif | |
2edf5e49 DY |
82 | #if defined(CONFIG_PROVE_LOCKING) || defined(CONFIG_LOCK_STAT) |
83 | #include <linux/lockdep.h> | |
84 | #endif | |
15485a46 DY |
85 | #ifdef CONFIG_CHR_DEV_SG |
86 | #include <scsi/sg.h> | |
87 | #endif | |
29cbc78b | 88 | |
58687acb | 89 | #ifdef CONFIG_LOCKUP_DETECTOR |
504d7cf1 DZ |
90 | #include <linux/nmi.h> |
91 | #endif | |
92 | ||
7058cb02 | 93 | |
1da177e4 LT |
94 | #if defined(CONFIG_SYSCTL) |
95 | ||
96 | /* External variables not in a header file. */ | |
1da177e4 LT |
97 | extern int sysctl_overcommit_memory; |
98 | extern int sysctl_overcommit_ratio; | |
99 | extern int max_threads; | |
d6e71144 | 100 | extern int suid_dumpable; |
046d662f AK |
101 | #ifdef CONFIG_COREDUMP |
102 | extern int core_uses_pid; | |
1da177e4 | 103 | extern char core_pattern[]; |
a293980c | 104 | extern unsigned int core_pipe_limit; |
046d662f | 105 | #endif |
1da177e4 LT |
106 | extern int pid_max; |
107 | extern int min_free_kbytes; | |
1da177e4 | 108 | extern int pid_max_min, pid_max_max; |
9d0243bc | 109 | extern int sysctl_drop_caches; |
8ad4b1fb | 110 | extern int percpu_pagelist_fraction; |
bebfa101 | 111 | extern int compat_log; |
9745512c | 112 | extern int latencytop_enabled; |
eceea0b3 | 113 | extern int sysctl_nr_open_min, sysctl_nr_open_max; |
dd8632a1 PM |
114 | #ifndef CONFIG_MMU |
115 | extern int sysctl_nr_trim_pages; | |
116 | #endif | |
cb684b5b | 117 | #ifdef CONFIG_BLOCK |
5e605b64 | 118 | extern int blk_iopoll_enabled; |
cb684b5b | 119 | #endif |
1da177e4 | 120 | |
c4f3b63f | 121 | /* Constants used for minimum and maximum */ |
2508ce18 | 122 | #ifdef CONFIG_LOCKUP_DETECTOR |
c4f3b63f | 123 | static int sixty = 60; |
9383d967 | 124 | static int neg_one = -1; |
c4f3b63f RT |
125 | #endif |
126 | ||
c4f3b63f | 127 | static int zero; |
cd5f9a4c LT |
128 | static int __maybe_unused one = 1; |
129 | static int __maybe_unused two = 2; | |
cb16e95f | 130 | static int __maybe_unused three = 3; |
fc3501d4 | 131 | static unsigned long one_ul = 1; |
c4f3b63f | 132 | static int one_hundred = 100; |
af91322e DY |
133 | #ifdef CONFIG_PRINTK |
134 | static int ten_thousand = 10000; | |
135 | #endif | |
c4f3b63f | 136 | |
9e4a5bda AR |
137 | /* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */ |
138 | static unsigned long dirty_bytes_min = 2 * PAGE_SIZE; | |
139 | ||
1da177e4 LT |
140 | /* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */ |
141 | static int maxolduid = 65535; | |
142 | static int minolduid; | |
8ad4b1fb | 143 | static int min_percpu_pagelist_fract = 8; |
1da177e4 LT |
144 | |
145 | static int ngroups_max = NGROUPS_MAX; | |
73efc039 | 146 | static const int cap_last_cap = CAP_LAST_CAP; |
1da177e4 | 147 | |
d14f1729 DY |
148 | #ifdef CONFIG_INOTIFY_USER |
149 | #include <linux/inotify.h> | |
150 | #endif | |
72c57ed5 | 151 | #ifdef CONFIG_SPARC |
1da177e4 LT |
152 | #endif |
153 | ||
0871420f DM |
154 | #ifdef CONFIG_SPARC64 |
155 | extern int sysctl_tsb_ratio; | |
156 | #endif | |
157 | ||
1da177e4 LT |
158 | #ifdef __hppa__ |
159 | extern int pwrsw_enabled; | |
160 | extern int unaligned_enabled; | |
161 | #endif | |
1da177e4 | 162 | |
d2b176ed JS |
163 | #ifdef CONFIG_IA64 |
164 | extern int no_unaligned_warning; | |
88fc241f | 165 | extern int unaligned_dump_stack; |
d2b176ed JS |
166 | #endif |
167 | ||
d6f8ff73 | 168 | #ifdef CONFIG_PROC_SYSCTL |
8d65af78 | 169 | static int proc_do_cad_pid(struct ctl_table *table, int write, |
9ec52099 | 170 | void __user *buffer, size_t *lenp, loff_t *ppos); |
8d65af78 | 171 | static int proc_taint(struct ctl_table *table, int write, |
34f5a398 | 172 | void __user *buffer, size_t *lenp, loff_t *ppos); |
d6f8ff73 | 173 | #endif |
9ec52099 | 174 | |
bfdc0b49 | 175 | #ifdef CONFIG_PRINTK |
620f6e8e | 176 | static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, |
bfdc0b49 RW |
177 | void __user *buffer, size_t *lenp, loff_t *ppos); |
178 | #endif | |
179 | ||
54b50199 KC |
180 | static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write, |
181 | void __user *buffer, size_t *lenp, loff_t *ppos); | |
046d662f | 182 | #ifdef CONFIG_COREDUMP |
54b50199 KC |
183 | static int proc_dostring_coredump(struct ctl_table *table, int write, |
184 | void __user *buffer, size_t *lenp, loff_t *ppos); | |
046d662f | 185 | #endif |
54b50199 | 186 | |
97f5f0cd | 187 | #ifdef CONFIG_MAGIC_SYSRQ |
8c6a98b2 AW |
188 | /* Note: sysrq code uses it's own private copy */ |
189 | static int __sysrq_enabled = SYSRQ_DEFAULT_ENABLE; | |
97f5f0cd DT |
190 | |
191 | static int sysrq_sysctl_handler(ctl_table *table, int write, | |
192 | void __user *buffer, size_t *lenp, | |
193 | loff_t *ppos) | |
194 | { | |
195 | int error; | |
196 | ||
197 | error = proc_dointvec(table, write, buffer, lenp, ppos); | |
198 | if (error) | |
199 | return error; | |
200 | ||
201 | if (write) | |
202 | sysrq_toggle_support(__sysrq_enabled); | |
203 | ||
204 | return 0; | |
205 | } | |
206 | ||
207 | #endif | |
208 | ||
d8217f07 EB |
209 | static struct ctl_table kern_table[]; |
210 | static struct ctl_table vm_table[]; | |
211 | static struct ctl_table fs_table[]; | |
212 | static struct ctl_table debug_table[]; | |
213 | static struct ctl_table dev_table[]; | |
214 | extern struct ctl_table random_table[]; | |
7ef9964e DL |
215 | #ifdef CONFIG_EPOLL |
216 | extern struct ctl_table epoll_table[]; | |
217 | #endif | |
1da177e4 LT |
218 | |
219 | #ifdef HAVE_ARCH_PICK_MMAP_LAYOUT | |
220 | int sysctl_legacy_va_layout; | |
221 | #endif | |
222 | ||
1da177e4 LT |
223 | /* The default sysctl tables: */ |
224 | ||
de4e83bd | 225 | static struct ctl_table sysctl_base_table[] = { |
1da177e4 | 226 | { |
1da177e4 LT |
227 | .procname = "kernel", |
228 | .mode = 0555, | |
229 | .child = kern_table, | |
230 | }, | |
231 | { | |
1da177e4 LT |
232 | .procname = "vm", |
233 | .mode = 0555, | |
234 | .child = vm_table, | |
235 | }, | |
1da177e4 | 236 | { |
1da177e4 LT |
237 | .procname = "fs", |
238 | .mode = 0555, | |
239 | .child = fs_table, | |
240 | }, | |
241 | { | |
1da177e4 LT |
242 | .procname = "debug", |
243 | .mode = 0555, | |
244 | .child = debug_table, | |
245 | }, | |
246 | { | |
1da177e4 LT |
247 | .procname = "dev", |
248 | .mode = 0555, | |
249 | .child = dev_table, | |
250 | }, | |
6fce56ec | 251 | { } |
1da177e4 LT |
252 | }; |
253 | ||
77e54a1f | 254 | #ifdef CONFIG_SCHED_DEBUG |
73c4efd2 ED |
255 | static int min_sched_granularity_ns = 100000; /* 100 usecs */ |
256 | static int max_sched_granularity_ns = NSEC_PER_SEC; /* 1 second */ | |
257 | static int min_wakeup_granularity_ns; /* 0 usecs */ | |
258 | static int max_wakeup_granularity_ns = NSEC_PER_SEC; /* 1 second */ | |
1983a922 CE |
259 | static int min_sched_tunable_scaling = SCHED_TUNABLESCALING_NONE; |
260 | static int max_sched_tunable_scaling = SCHED_TUNABLESCALING_END-1; | |
77e54a1f IM |
261 | #endif |
262 | ||
5e771905 MG |
263 | #ifdef CONFIG_COMPACTION |
264 | static int min_extfrag_threshold; | |
265 | static int max_extfrag_threshold = 1000; | |
266 | #endif | |
267 | ||
d8217f07 | 268 | static struct ctl_table kern_table[] = { |
2bba22c5 | 269 | { |
2bba22c5 MG |
270 | .procname = "sched_child_runs_first", |
271 | .data = &sysctl_sched_child_runs_first, | |
272 | .maxlen = sizeof(unsigned int), | |
273 | .mode = 0644, | |
6d456111 | 274 | .proc_handler = proc_dointvec, |
2bba22c5 | 275 | }, |
77e54a1f IM |
276 | #ifdef CONFIG_SCHED_DEBUG |
277 | { | |
b2be5e96 PZ |
278 | .procname = "sched_min_granularity_ns", |
279 | .data = &sysctl_sched_min_granularity, | |
77e54a1f IM |
280 | .maxlen = sizeof(unsigned int), |
281 | .mode = 0644, | |
702a7c76 | 282 | .proc_handler = sched_proc_update_handler, |
b2be5e96 PZ |
283 | .extra1 = &min_sched_granularity_ns, |
284 | .extra2 = &max_sched_granularity_ns, | |
77e54a1f | 285 | }, |
21805085 | 286 | { |
21805085 PZ |
287 | .procname = "sched_latency_ns", |
288 | .data = &sysctl_sched_latency, | |
289 | .maxlen = sizeof(unsigned int), | |
290 | .mode = 0644, | |
702a7c76 | 291 | .proc_handler = sched_proc_update_handler, |
21805085 PZ |
292 | .extra1 = &min_sched_granularity_ns, |
293 | .extra2 = &max_sched_granularity_ns, | |
294 | }, | |
77e54a1f | 295 | { |
77e54a1f IM |
296 | .procname = "sched_wakeup_granularity_ns", |
297 | .data = &sysctl_sched_wakeup_granularity, | |
298 | .maxlen = sizeof(unsigned int), | |
299 | .mode = 0644, | |
702a7c76 | 300 | .proc_handler = sched_proc_update_handler, |
77e54a1f IM |
301 | .extra1 = &min_wakeup_granularity_ns, |
302 | .extra2 = &max_wakeup_granularity_ns, | |
303 | }, | |
1983a922 | 304 | { |
1983a922 CE |
305 | .procname = "sched_tunable_scaling", |
306 | .data = &sysctl_sched_tunable_scaling, | |
307 | .maxlen = sizeof(enum sched_tunable_scaling), | |
308 | .mode = 0644, | |
702a7c76 | 309 | .proc_handler = sched_proc_update_handler, |
1983a922 CE |
310 | .extra1 = &min_sched_tunable_scaling, |
311 | .extra2 = &max_sched_tunable_scaling, | |
2398f2c6 | 312 | }, |
da84d961 | 313 | { |
d00535db | 314 | .procname = "sched_migration_cost_ns", |
da84d961 IM |
315 | .data = &sysctl_sched_migration_cost, |
316 | .maxlen = sizeof(unsigned int), | |
317 | .mode = 0644, | |
6d456111 | 318 | .proc_handler = proc_dointvec, |
da84d961 | 319 | }, |
b82d9fdd | 320 | { |
b82d9fdd PZ |
321 | .procname = "sched_nr_migrate", |
322 | .data = &sysctl_sched_nr_migrate, | |
323 | .maxlen = sizeof(unsigned int), | |
fa85ae24 | 324 | .mode = 0644, |
6d456111 | 325 | .proc_handler = proc_dointvec, |
fa85ae24 | 326 | }, |
e9e9250b | 327 | { |
d00535db | 328 | .procname = "sched_time_avg_ms", |
e9e9250b PZ |
329 | .data = &sysctl_sched_time_avg, |
330 | .maxlen = sizeof(unsigned int), | |
331 | .mode = 0644, | |
6d456111 | 332 | .proc_handler = proc_dointvec, |
e9e9250b | 333 | }, |
a7a4f8a7 | 334 | { |
d00535db | 335 | .procname = "sched_shares_window_ns", |
a7a4f8a7 PT |
336 | .data = &sysctl_sched_shares_window, |
337 | .maxlen = sizeof(unsigned int), | |
338 | .mode = 0644, | |
339 | .proc_handler = proc_dointvec, | |
340 | }, | |
cd1bb94b | 341 | { |
cd1bb94b AB |
342 | .procname = "timer_migration", |
343 | .data = &sysctl_timer_migration, | |
344 | .maxlen = sizeof(unsigned int), | |
345 | .mode = 0644, | |
6d456111 | 346 | .proc_handler = proc_dointvec_minmax, |
bfdb4d9f AB |
347 | .extra1 = &zero, |
348 | .extra2 = &one, | |
fa85ae24 | 349 | }, |
1fc84aaa | 350 | #endif |
9f0c1e56 | 351 | { |
9f0c1e56 PZ |
352 | .procname = "sched_rt_period_us", |
353 | .data = &sysctl_sched_rt_period, | |
354 | .maxlen = sizeof(unsigned int), | |
355 | .mode = 0644, | |
6d456111 | 356 | .proc_handler = sched_rt_handler, |
9f0c1e56 PZ |
357 | }, |
358 | { | |
9f0c1e56 PZ |
359 | .procname = "sched_rt_runtime_us", |
360 | .data = &sysctl_sched_rt_runtime, | |
361 | .maxlen = sizeof(int), | |
362 | .mode = 0644, | |
6d456111 | 363 | .proc_handler = sched_rt_handler, |
9f0c1e56 | 364 | }, |
5091faa4 MG |
365 | #ifdef CONFIG_SCHED_AUTOGROUP |
366 | { | |
367 | .procname = "sched_autogroup_enabled", | |
368 | .data = &sysctl_sched_autogroup_enabled, | |
369 | .maxlen = sizeof(unsigned int), | |
370 | .mode = 0644, | |
1747b21f | 371 | .proc_handler = proc_dointvec_minmax, |
5091faa4 MG |
372 | .extra1 = &zero, |
373 | .extra2 = &one, | |
374 | }, | |
375 | #endif | |
ec12cb7f PT |
376 | #ifdef CONFIG_CFS_BANDWIDTH |
377 | { | |
378 | .procname = "sched_cfs_bandwidth_slice_us", | |
379 | .data = &sysctl_sched_cfs_bandwidth_slice, | |
380 | .maxlen = sizeof(unsigned int), | |
381 | .mode = 0644, | |
382 | .proc_handler = proc_dointvec_minmax, | |
383 | .extra1 = &one, | |
384 | }, | |
385 | #endif | |
f20786ff PZ |
386 | #ifdef CONFIG_PROVE_LOCKING |
387 | { | |
f20786ff PZ |
388 | .procname = "prove_locking", |
389 | .data = &prove_locking, | |
390 | .maxlen = sizeof(int), | |
391 | .mode = 0644, | |
6d456111 | 392 | .proc_handler = proc_dointvec, |
f20786ff PZ |
393 | }, |
394 | #endif | |
395 | #ifdef CONFIG_LOCK_STAT | |
396 | { | |
f20786ff PZ |
397 | .procname = "lock_stat", |
398 | .data = &lock_stat, | |
399 | .maxlen = sizeof(int), | |
400 | .mode = 0644, | |
6d456111 | 401 | .proc_handler = proc_dointvec, |
f20786ff | 402 | }, |
77e54a1f | 403 | #endif |
1da177e4 | 404 | { |
1da177e4 LT |
405 | .procname = "panic", |
406 | .data = &panic_timeout, | |
407 | .maxlen = sizeof(int), | |
408 | .mode = 0644, | |
6d456111 | 409 | .proc_handler = proc_dointvec, |
1da177e4 | 410 | }, |
046d662f | 411 | #ifdef CONFIG_COREDUMP |
1da177e4 | 412 | { |
1da177e4 LT |
413 | .procname = "core_uses_pid", |
414 | .data = &core_uses_pid, | |
415 | .maxlen = sizeof(int), | |
416 | .mode = 0644, | |
6d456111 | 417 | .proc_handler = proc_dointvec, |
1da177e4 LT |
418 | }, |
419 | { | |
1da177e4 LT |
420 | .procname = "core_pattern", |
421 | .data = core_pattern, | |
71ce92f3 | 422 | .maxlen = CORENAME_MAX_SIZE, |
1da177e4 | 423 | .mode = 0644, |
54b50199 | 424 | .proc_handler = proc_dostring_coredump, |
1da177e4 | 425 | }, |
a293980c | 426 | { |
a293980c NH |
427 | .procname = "core_pipe_limit", |
428 | .data = &core_pipe_limit, | |
429 | .maxlen = sizeof(unsigned int), | |
430 | .mode = 0644, | |
6d456111 | 431 | .proc_handler = proc_dointvec, |
a293980c | 432 | }, |
046d662f | 433 | #endif |
34f5a398 | 434 | #ifdef CONFIG_PROC_SYSCTL |
1da177e4 | 435 | { |
1da177e4 | 436 | .procname = "tainted", |
25ddbb18 | 437 | .maxlen = sizeof(long), |
34f5a398 | 438 | .mode = 0644, |
6d456111 | 439 | .proc_handler = proc_taint, |
1da177e4 | 440 | }, |
34f5a398 | 441 | #endif |
9745512c AV |
442 | #ifdef CONFIG_LATENCYTOP |
443 | { | |
444 | .procname = "latencytop", | |
445 | .data = &latencytop_enabled, | |
446 | .maxlen = sizeof(int), | |
447 | .mode = 0644, | |
6d456111 | 448 | .proc_handler = proc_dointvec, |
9745512c AV |
449 | }, |
450 | #endif | |
1da177e4 LT |
451 | #ifdef CONFIG_BLK_DEV_INITRD |
452 | { | |
1da177e4 LT |
453 | .procname = "real-root-dev", |
454 | .data = &real_root_dev, | |
455 | .maxlen = sizeof(int), | |
456 | .mode = 0644, | |
6d456111 | 457 | .proc_handler = proc_dointvec, |
1da177e4 LT |
458 | }, |
459 | #endif | |
45807a1d | 460 | { |
45807a1d IM |
461 | .procname = "print-fatal-signals", |
462 | .data = &print_fatal_signals, | |
463 | .maxlen = sizeof(int), | |
464 | .mode = 0644, | |
6d456111 | 465 | .proc_handler = proc_dointvec, |
45807a1d | 466 | }, |
72c57ed5 | 467 | #ifdef CONFIG_SPARC |
1da177e4 | 468 | { |
1da177e4 LT |
469 | .procname = "reboot-cmd", |
470 | .data = reboot_command, | |
471 | .maxlen = 256, | |
472 | .mode = 0644, | |
6d456111 | 473 | .proc_handler = proc_dostring, |
1da177e4 LT |
474 | }, |
475 | { | |
1da177e4 LT |
476 | .procname = "stop-a", |
477 | .data = &stop_a_enabled, | |
478 | .maxlen = sizeof (int), | |
479 | .mode = 0644, | |
6d456111 | 480 | .proc_handler = proc_dointvec, |
1da177e4 LT |
481 | }, |
482 | { | |
1da177e4 LT |
483 | .procname = "scons-poweroff", |
484 | .data = &scons_pwroff, | |
485 | .maxlen = sizeof (int), | |
486 | .mode = 0644, | |
6d456111 | 487 | .proc_handler = proc_dointvec, |
1da177e4 LT |
488 | }, |
489 | #endif | |
0871420f DM |
490 | #ifdef CONFIG_SPARC64 |
491 | { | |
0871420f DM |
492 | .procname = "tsb-ratio", |
493 | .data = &sysctl_tsb_ratio, | |
494 | .maxlen = sizeof (int), | |
495 | .mode = 0644, | |
6d456111 | 496 | .proc_handler = proc_dointvec, |
0871420f DM |
497 | }, |
498 | #endif | |
1da177e4 LT |
499 | #ifdef __hppa__ |
500 | { | |
1da177e4 LT |
501 | .procname = "soft-power", |
502 | .data = &pwrsw_enabled, | |
503 | .maxlen = sizeof (int), | |
504 | .mode = 0644, | |
6d456111 | 505 | .proc_handler = proc_dointvec, |
1da177e4 LT |
506 | }, |
507 | { | |
1da177e4 LT |
508 | .procname = "unaligned-trap", |
509 | .data = &unaligned_enabled, | |
510 | .maxlen = sizeof (int), | |
511 | .mode = 0644, | |
6d456111 | 512 | .proc_handler = proc_dointvec, |
1da177e4 LT |
513 | }, |
514 | #endif | |
515 | { | |
1da177e4 LT |
516 | .procname = "ctrl-alt-del", |
517 | .data = &C_A_D, | |
518 | .maxlen = sizeof(int), | |
519 | .mode = 0644, | |
6d456111 | 520 | .proc_handler = proc_dointvec, |
1da177e4 | 521 | }, |
606576ce | 522 | #ifdef CONFIG_FUNCTION_TRACER |
b0fc494f | 523 | { |
b0fc494f SR |
524 | .procname = "ftrace_enabled", |
525 | .data = &ftrace_enabled, | |
526 | .maxlen = sizeof(int), | |
527 | .mode = 0644, | |
6d456111 | 528 | .proc_handler = ftrace_enable_sysctl, |
b0fc494f SR |
529 | }, |
530 | #endif | |
f38f1d2a SR |
531 | #ifdef CONFIG_STACK_TRACER |
532 | { | |
f38f1d2a SR |
533 | .procname = "stack_tracer_enabled", |
534 | .data = &stack_tracer_enabled, | |
535 | .maxlen = sizeof(int), | |
536 | .mode = 0644, | |
6d456111 | 537 | .proc_handler = stack_trace_sysctl, |
f38f1d2a SR |
538 | }, |
539 | #endif | |
944ac425 SR |
540 | #ifdef CONFIG_TRACING |
541 | { | |
3299b4dd | 542 | .procname = "ftrace_dump_on_oops", |
944ac425 SR |
543 | .data = &ftrace_dump_on_oops, |
544 | .maxlen = sizeof(int), | |
545 | .mode = 0644, | |
6d456111 | 546 | .proc_handler = proc_dointvec, |
944ac425 SR |
547 | }, |
548 | #endif | |
a1ef5adb | 549 | #ifdef CONFIG_MODULES |
1da177e4 | 550 | { |
1da177e4 LT |
551 | .procname = "modprobe", |
552 | .data = &modprobe_path, | |
553 | .maxlen = KMOD_PATH_LEN, | |
554 | .mode = 0644, | |
6d456111 | 555 | .proc_handler = proc_dostring, |
1da177e4 | 556 | }, |
3d43321b | 557 | { |
3d43321b KC |
558 | .procname = "modules_disabled", |
559 | .data = &modules_disabled, | |
560 | .maxlen = sizeof(int), | |
561 | .mode = 0644, | |
562 | /* only handle a transition from default "0" to "1" */ | |
6d456111 | 563 | .proc_handler = proc_dointvec_minmax, |
3d43321b KC |
564 | .extra1 = &one, |
565 | .extra2 = &one, | |
566 | }, | |
1da177e4 | 567 | #endif |
94f17cd7 | 568 | #ifdef CONFIG_HOTPLUG |
1da177e4 | 569 | { |
1da177e4 | 570 | .procname = "hotplug", |
312c004d KS |
571 | .data = &uevent_helper, |
572 | .maxlen = UEVENT_HELPER_PATH_LEN, | |
1da177e4 | 573 | .mode = 0644, |
6d456111 | 574 | .proc_handler = proc_dostring, |
1da177e4 LT |
575 | }, |
576 | #endif | |
577 | #ifdef CONFIG_CHR_DEV_SG | |
578 | { | |
1da177e4 LT |
579 | .procname = "sg-big-buff", |
580 | .data = &sg_big_buff, | |
581 | .maxlen = sizeof (int), | |
582 | .mode = 0444, | |
6d456111 | 583 | .proc_handler = proc_dointvec, |
1da177e4 LT |
584 | }, |
585 | #endif | |
586 | #ifdef CONFIG_BSD_PROCESS_ACCT | |
587 | { | |
1da177e4 LT |
588 | .procname = "acct", |
589 | .data = &acct_parm, | |
590 | .maxlen = 3*sizeof(int), | |
591 | .mode = 0644, | |
6d456111 | 592 | .proc_handler = proc_dointvec, |
1da177e4 LT |
593 | }, |
594 | #endif | |
1da177e4 LT |
595 | #ifdef CONFIG_MAGIC_SYSRQ |
596 | { | |
1da177e4 | 597 | .procname = "sysrq", |
5d6f647f | 598 | .data = &__sysrq_enabled, |
1da177e4 LT |
599 | .maxlen = sizeof (int), |
600 | .mode = 0644, | |
97f5f0cd | 601 | .proc_handler = sysrq_sysctl_handler, |
1da177e4 LT |
602 | }, |
603 | #endif | |
d6f8ff73 | 604 | #ifdef CONFIG_PROC_SYSCTL |
1da177e4 | 605 | { |
1da177e4 | 606 | .procname = "cad_pid", |
9ec52099 | 607 | .data = NULL, |
1da177e4 LT |
608 | .maxlen = sizeof (int), |
609 | .mode = 0600, | |
6d456111 | 610 | .proc_handler = proc_do_cad_pid, |
1da177e4 | 611 | }, |
d6f8ff73 | 612 | #endif |
1da177e4 | 613 | { |
1da177e4 LT |
614 | .procname = "threads-max", |
615 | .data = &max_threads, | |
616 | .maxlen = sizeof(int), | |
617 | .mode = 0644, | |
6d456111 | 618 | .proc_handler = proc_dointvec, |
1da177e4 LT |
619 | }, |
620 | { | |
1da177e4 LT |
621 | .procname = "random", |
622 | .mode = 0555, | |
623 | .child = random_table, | |
624 | }, | |
17f60a7d EP |
625 | { |
626 | .procname = "usermodehelper", | |
627 | .mode = 0555, | |
628 | .child = usermodehelper_table, | |
629 | }, | |
1da177e4 | 630 | { |
1da177e4 LT |
631 | .procname = "overflowuid", |
632 | .data = &overflowuid, | |
633 | .maxlen = sizeof(int), | |
634 | .mode = 0644, | |
6d456111 | 635 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
636 | .extra1 = &minolduid, |
637 | .extra2 = &maxolduid, | |
638 | }, | |
639 | { | |
1da177e4 LT |
640 | .procname = "overflowgid", |
641 | .data = &overflowgid, | |
642 | .maxlen = sizeof(int), | |
643 | .mode = 0644, | |
6d456111 | 644 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
645 | .extra1 = &minolduid, |
646 | .extra2 = &maxolduid, | |
647 | }, | |
347a8dc3 | 648 | #ifdef CONFIG_S390 |
1da177e4 LT |
649 | #ifdef CONFIG_MATHEMU |
650 | { | |
1da177e4 LT |
651 | .procname = "ieee_emulation_warnings", |
652 | .data = &sysctl_ieee_emulation_warnings, | |
653 | .maxlen = sizeof(int), | |
654 | .mode = 0644, | |
6d456111 | 655 | .proc_handler = proc_dointvec, |
1da177e4 | 656 | }, |
1da177e4 LT |
657 | #endif |
658 | { | |
1da177e4 | 659 | .procname = "userprocess_debug", |
ab3c68ee | 660 | .data = &show_unhandled_signals, |
1da177e4 LT |
661 | .maxlen = sizeof(int), |
662 | .mode = 0644, | |
6d456111 | 663 | .proc_handler = proc_dointvec, |
1da177e4 LT |
664 | }, |
665 | #endif | |
666 | { | |
1da177e4 LT |
667 | .procname = "pid_max", |
668 | .data = &pid_max, | |
669 | .maxlen = sizeof (int), | |
670 | .mode = 0644, | |
6d456111 | 671 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
672 | .extra1 = &pid_max_min, |
673 | .extra2 = &pid_max_max, | |
674 | }, | |
675 | { | |
1da177e4 LT |
676 | .procname = "panic_on_oops", |
677 | .data = &panic_on_oops, | |
678 | .maxlen = sizeof(int), | |
679 | .mode = 0644, | |
6d456111 | 680 | .proc_handler = proc_dointvec, |
1da177e4 | 681 | }, |
7ef3d2fd JP |
682 | #if defined CONFIG_PRINTK |
683 | { | |
7ef3d2fd JP |
684 | .procname = "printk", |
685 | .data = &console_loglevel, | |
686 | .maxlen = 4*sizeof(int), | |
687 | .mode = 0644, | |
6d456111 | 688 | .proc_handler = proc_dointvec, |
7ef3d2fd | 689 | }, |
1da177e4 | 690 | { |
1da177e4 | 691 | .procname = "printk_ratelimit", |
717115e1 | 692 | .data = &printk_ratelimit_state.interval, |
1da177e4 LT |
693 | .maxlen = sizeof(int), |
694 | .mode = 0644, | |
6d456111 | 695 | .proc_handler = proc_dointvec_jiffies, |
1da177e4 LT |
696 | }, |
697 | { | |
1da177e4 | 698 | .procname = "printk_ratelimit_burst", |
717115e1 | 699 | .data = &printk_ratelimit_state.burst, |
1da177e4 LT |
700 | .maxlen = sizeof(int), |
701 | .mode = 0644, | |
6d456111 | 702 | .proc_handler = proc_dointvec, |
1da177e4 | 703 | }, |
af91322e | 704 | { |
af91322e DY |
705 | .procname = "printk_delay", |
706 | .data = &printk_delay_msec, | |
707 | .maxlen = sizeof(int), | |
708 | .mode = 0644, | |
6d456111 | 709 | .proc_handler = proc_dointvec_minmax, |
af91322e DY |
710 | .extra1 = &zero, |
711 | .extra2 = &ten_thousand, | |
712 | }, | |
eaf06b24 DR |
713 | { |
714 | .procname = "dmesg_restrict", | |
715 | .data = &dmesg_restrict, | |
716 | .maxlen = sizeof(int), | |
717 | .mode = 0644, | |
620f6e8e | 718 | .proc_handler = proc_dointvec_minmax_sysadmin, |
eaf06b24 DR |
719 | .extra1 = &zero, |
720 | .extra2 = &one, | |
721 | }, | |
455cd5ab DR |
722 | { |
723 | .procname = "kptr_restrict", | |
724 | .data = &kptr_restrict, | |
725 | .maxlen = sizeof(int), | |
726 | .mode = 0644, | |
620f6e8e | 727 | .proc_handler = proc_dointvec_minmax_sysadmin, |
455cd5ab DR |
728 | .extra1 = &zero, |
729 | .extra2 = &two, | |
730 | }, | |
df6e61d4 | 731 | #endif |
1da177e4 | 732 | { |
1da177e4 LT |
733 | .procname = "ngroups_max", |
734 | .data = &ngroups_max, | |
735 | .maxlen = sizeof (int), | |
736 | .mode = 0444, | |
6d456111 | 737 | .proc_handler = proc_dointvec, |
1da177e4 | 738 | }, |
73efc039 DB |
739 | { |
740 | .procname = "cap_last_cap", | |
741 | .data = (void *)&cap_last_cap, | |
742 | .maxlen = sizeof(int), | |
743 | .mode = 0444, | |
744 | .proc_handler = proc_dointvec, | |
745 | }, | |
58687acb | 746 | #if defined(CONFIG_LOCKUP_DETECTOR) |
504d7cf1 | 747 | { |
58687acb DZ |
748 | .procname = "watchdog", |
749 | .data = &watchdog_enabled, | |
504d7cf1 DZ |
750 | .maxlen = sizeof (int), |
751 | .mode = 0644, | |
586692a5 MSB |
752 | .proc_handler = proc_dowatchdog, |
753 | .extra1 = &zero, | |
754 | .extra2 = &one, | |
58687acb DZ |
755 | }, |
756 | { | |
757 | .procname = "watchdog_thresh", | |
586692a5 | 758 | .data = &watchdog_thresh, |
58687acb DZ |
759 | .maxlen = sizeof(int), |
760 | .mode = 0644, | |
586692a5 | 761 | .proc_handler = proc_dowatchdog, |
58687acb DZ |
762 | .extra1 = &neg_one, |
763 | .extra2 = &sixty, | |
504d7cf1 | 764 | }, |
2508ce18 DZ |
765 | { |
766 | .procname = "softlockup_panic", | |
767 | .data = &softlockup_panic, | |
768 | .maxlen = sizeof(int), | |
769 | .mode = 0644, | |
770 | .proc_handler = proc_dointvec_minmax, | |
771 | .extra1 = &zero, | |
772 | .extra2 = &one, | |
773 | }, | |
5dc30558 DZ |
774 | { |
775 | .procname = "nmi_watchdog", | |
776 | .data = &watchdog_enabled, | |
777 | .maxlen = sizeof (int), | |
778 | .mode = 0644, | |
586692a5 MSB |
779 | .proc_handler = proc_dowatchdog, |
780 | .extra1 = &zero, | |
781 | .extra2 = &one, | |
5dc30558 DZ |
782 | }, |
783 | #endif | |
784 | #if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86) | |
785 | { | |
786 | .procname = "unknown_nmi_panic", | |
787 | .data = &unknown_nmi_panic, | |
788 | .maxlen = sizeof (int), | |
789 | .mode = 0644, | |
790 | .proc_handler = proc_dointvec, | |
791 | }, | |
504d7cf1 | 792 | #endif |
1da177e4 | 793 | #if defined(CONFIG_X86) |
8da5adda | 794 | { |
8da5adda DZ |
795 | .procname = "panic_on_unrecovered_nmi", |
796 | .data = &panic_on_unrecovered_nmi, | |
797 | .maxlen = sizeof(int), | |
798 | .mode = 0644, | |
6d456111 | 799 | .proc_handler = proc_dointvec, |
8da5adda | 800 | }, |
5211a242 | 801 | { |
5211a242 KG |
802 | .procname = "panic_on_io_nmi", |
803 | .data = &panic_on_io_nmi, | |
804 | .maxlen = sizeof(int), | |
805 | .mode = 0644, | |
6d456111 | 806 | .proc_handler = proc_dointvec, |
5211a242 | 807 | }, |
55af7796 MH |
808 | #ifdef CONFIG_DEBUG_STACKOVERFLOW |
809 | { | |
810 | .procname = "panic_on_stackoverflow", | |
811 | .data = &sysctl_panic_on_stackoverflow, | |
812 | .maxlen = sizeof(int), | |
813 | .mode = 0644, | |
814 | .proc_handler = proc_dointvec, | |
815 | }, | |
816 | #endif | |
1da177e4 | 817 | { |
1da177e4 LT |
818 | .procname = "bootloader_type", |
819 | .data = &bootloader_type, | |
820 | .maxlen = sizeof (int), | |
821 | .mode = 0444, | |
6d456111 | 822 | .proc_handler = proc_dointvec, |
1da177e4 | 823 | }, |
5031296c | 824 | { |
5031296c PA |
825 | .procname = "bootloader_version", |
826 | .data = &bootloader_version, | |
827 | .maxlen = sizeof (int), | |
828 | .mode = 0444, | |
6d456111 | 829 | .proc_handler = proc_dointvec, |
5031296c | 830 | }, |
0741f4d2 | 831 | { |
0741f4d2 CE |
832 | .procname = "kstack_depth_to_print", |
833 | .data = &kstack_depth_to_print, | |
834 | .maxlen = sizeof(int), | |
835 | .mode = 0644, | |
6d456111 | 836 | .proc_handler = proc_dointvec, |
0741f4d2 | 837 | }, |
6e7c4025 | 838 | { |
6e7c4025 IM |
839 | .procname = "io_delay_type", |
840 | .data = &io_delay_type, | |
841 | .maxlen = sizeof(int), | |
842 | .mode = 0644, | |
6d456111 | 843 | .proc_handler = proc_dointvec, |
6e7c4025 | 844 | }, |
1da177e4 | 845 | #endif |
7a9166e3 | 846 | #if defined(CONFIG_MMU) |
1da177e4 | 847 | { |
1da177e4 LT |
848 | .procname = "randomize_va_space", |
849 | .data = &randomize_va_space, | |
850 | .maxlen = sizeof(int), | |
851 | .mode = 0644, | |
6d456111 | 852 | .proc_handler = proc_dointvec, |
1da177e4 | 853 | }, |
7a9166e3 | 854 | #endif |
0152fb37 | 855 | #if defined(CONFIG_S390) && defined(CONFIG_SMP) |
951f22d5 | 856 | { |
951f22d5 MS |
857 | .procname = "spin_retry", |
858 | .data = &spin_retry, | |
859 | .maxlen = sizeof (int), | |
860 | .mode = 0644, | |
6d456111 | 861 | .proc_handler = proc_dointvec, |
951f22d5 | 862 | }, |
c255d844 | 863 | #endif |
673d5b43 | 864 | #if defined(CONFIG_ACPI_SLEEP) && defined(CONFIG_X86) |
c255d844 | 865 | { |
c255d844 | 866 | .procname = "acpi_video_flags", |
77afcf78 | 867 | .data = &acpi_realmode_flags, |
c255d844 PM |
868 | .maxlen = sizeof (unsigned long), |
869 | .mode = 0644, | |
6d456111 | 870 | .proc_handler = proc_doulongvec_minmax, |
c255d844 | 871 | }, |
d2b176ed JS |
872 | #endif |
873 | #ifdef CONFIG_IA64 | |
874 | { | |
d2b176ed JS |
875 | .procname = "ignore-unaligned-usertrap", |
876 | .data = &no_unaligned_warning, | |
877 | .maxlen = sizeof (int), | |
878 | .mode = 0644, | |
6d456111 | 879 | .proc_handler = proc_dointvec, |
d2b176ed | 880 | }, |
88fc241f | 881 | { |
88fc241f DC |
882 | .procname = "unaligned-dump-stack", |
883 | .data = &unaligned_dump_stack, | |
884 | .maxlen = sizeof (int), | |
885 | .mode = 0644, | |
6d456111 | 886 | .proc_handler = proc_dointvec, |
88fc241f | 887 | }, |
bebfa101 | 888 | #endif |
e162b39a MSB |
889 | #ifdef CONFIG_DETECT_HUNG_TASK |
890 | { | |
e162b39a MSB |
891 | .procname = "hung_task_panic", |
892 | .data = &sysctl_hung_task_panic, | |
893 | .maxlen = sizeof(int), | |
894 | .mode = 0644, | |
6d456111 | 895 | .proc_handler = proc_dointvec_minmax, |
e162b39a MSB |
896 | .extra1 = &zero, |
897 | .extra2 = &one, | |
898 | }, | |
82a1fcb9 | 899 | { |
82a1fcb9 IM |
900 | .procname = "hung_task_check_count", |
901 | .data = &sysctl_hung_task_check_count, | |
90739081 | 902 | .maxlen = sizeof(unsigned long), |
82a1fcb9 | 903 | .mode = 0644, |
6d456111 | 904 | .proc_handler = proc_doulongvec_minmax, |
82a1fcb9 IM |
905 | }, |
906 | { | |
82a1fcb9 IM |
907 | .procname = "hung_task_timeout_secs", |
908 | .data = &sysctl_hung_task_timeout_secs, | |
90739081 | 909 | .maxlen = sizeof(unsigned long), |
82a1fcb9 | 910 | .mode = 0644, |
6d456111 | 911 | .proc_handler = proc_dohung_task_timeout_secs, |
82a1fcb9 IM |
912 | }, |
913 | { | |
82a1fcb9 IM |
914 | .procname = "hung_task_warnings", |
915 | .data = &sysctl_hung_task_warnings, | |
90739081 | 916 | .maxlen = sizeof(unsigned long), |
82a1fcb9 | 917 | .mode = 0644, |
6d456111 | 918 | .proc_handler = proc_doulongvec_minmax, |
82a1fcb9 | 919 | }, |
c4f3b63f | 920 | #endif |
bebfa101 AK |
921 | #ifdef CONFIG_COMPAT |
922 | { | |
bebfa101 AK |
923 | .procname = "compat-log", |
924 | .data = &compat_log, | |
925 | .maxlen = sizeof (int), | |
926 | .mode = 0644, | |
6d456111 | 927 | .proc_handler = proc_dointvec, |
bebfa101 | 928 | }, |
951f22d5 | 929 | #endif |
23f78d4a IM |
930 | #ifdef CONFIG_RT_MUTEXES |
931 | { | |
23f78d4a IM |
932 | .procname = "max_lock_depth", |
933 | .data = &max_lock_depth, | |
934 | .maxlen = sizeof(int), | |
935 | .mode = 0644, | |
6d456111 | 936 | .proc_handler = proc_dointvec, |
23f78d4a | 937 | }, |
5096add8 | 938 | #endif |
10a0a8d4 | 939 | { |
10a0a8d4 JF |
940 | .procname = "poweroff_cmd", |
941 | .data = &poweroff_cmd, | |
942 | .maxlen = POWEROFF_CMD_PATH_LEN, | |
943 | .mode = 0644, | |
6d456111 | 944 | .proc_handler = proc_dostring, |
10a0a8d4 | 945 | }, |
0b77f5bf DH |
946 | #ifdef CONFIG_KEYS |
947 | { | |
0b77f5bf DH |
948 | .procname = "keys", |
949 | .mode = 0555, | |
950 | .child = key_sysctls, | |
951 | }, | |
952 | #endif | |
31a72bce PM |
953 | #ifdef CONFIG_RCU_TORTURE_TEST |
954 | { | |
31a72bce PM |
955 | .procname = "rcutorture_runnable", |
956 | .data = &rcutorture_runnable, | |
957 | .maxlen = sizeof(int), | |
958 | .mode = 0644, | |
6d456111 | 959 | .proc_handler = proc_dointvec, |
31a72bce PM |
960 | }, |
961 | #endif | |
cdd6c482 | 962 | #ifdef CONFIG_PERF_EVENTS |
aa4a2218 VW |
963 | /* |
964 | * User-space scripts rely on the existence of this file | |
965 | * as a feature check for perf_events being enabled. | |
966 | * | |
967 | * So it's an ABI, do not remove! | |
968 | */ | |
1ccd1549 | 969 | { |
cdd6c482 IM |
970 | .procname = "perf_event_paranoid", |
971 | .data = &sysctl_perf_event_paranoid, | |
972 | .maxlen = sizeof(sysctl_perf_event_paranoid), | |
1ccd1549 | 973 | .mode = 0644, |
6d456111 | 974 | .proc_handler = proc_dointvec, |
1ccd1549 | 975 | }, |
c5078f78 | 976 | { |
cdd6c482 IM |
977 | .procname = "perf_event_mlock_kb", |
978 | .data = &sysctl_perf_event_mlock, | |
979 | .maxlen = sizeof(sysctl_perf_event_mlock), | |
c5078f78 | 980 | .mode = 0644, |
6d456111 | 981 | .proc_handler = proc_dointvec, |
c5078f78 | 982 | }, |
a78ac325 | 983 | { |
cdd6c482 IM |
984 | .procname = "perf_event_max_sample_rate", |
985 | .data = &sysctl_perf_event_sample_rate, | |
986 | .maxlen = sizeof(sysctl_perf_event_sample_rate), | |
a78ac325 | 987 | .mode = 0644, |
163ec435 | 988 | .proc_handler = perf_proc_update_handler, |
a78ac325 | 989 | }, |
1ccd1549 | 990 | #endif |
dfec072e VN |
991 | #ifdef CONFIG_KMEMCHECK |
992 | { | |
dfec072e VN |
993 | .procname = "kmemcheck", |
994 | .data = &kmemcheck_enabled, | |
995 | .maxlen = sizeof(int), | |
996 | .mode = 0644, | |
6d456111 | 997 | .proc_handler = proc_dointvec, |
dfec072e VN |
998 | }, |
999 | #endif | |
cb684b5b | 1000 | #ifdef CONFIG_BLOCK |
5e605b64 | 1001 | { |
5e605b64 JA |
1002 | .procname = "blk_iopoll", |
1003 | .data = &blk_iopoll_enabled, | |
1004 | .maxlen = sizeof(int), | |
1005 | .mode = 0644, | |
6d456111 | 1006 | .proc_handler = proc_dointvec, |
5e605b64 | 1007 | }, |
cb684b5b | 1008 | #endif |
6fce56ec | 1009 | { } |
1da177e4 LT |
1010 | }; |
1011 | ||
d8217f07 | 1012 | static struct ctl_table vm_table[] = { |
1da177e4 | 1013 | { |
1da177e4 LT |
1014 | .procname = "overcommit_memory", |
1015 | .data = &sysctl_overcommit_memory, | |
1016 | .maxlen = sizeof(sysctl_overcommit_memory), | |
1017 | .mode = 0644, | |
cb16e95f PH |
1018 | .proc_handler = proc_dointvec_minmax, |
1019 | .extra1 = &zero, | |
1020 | .extra2 = &two, | |
1da177e4 | 1021 | }, |
fadd8fbd | 1022 | { |
fadd8fbd KH |
1023 | .procname = "panic_on_oom", |
1024 | .data = &sysctl_panic_on_oom, | |
1025 | .maxlen = sizeof(sysctl_panic_on_oom), | |
1026 | .mode = 0644, | |
cb16e95f PH |
1027 | .proc_handler = proc_dointvec_minmax, |
1028 | .extra1 = &zero, | |
1029 | .extra2 = &two, | |
fadd8fbd | 1030 | }, |
fe071d7e | 1031 | { |
fe071d7e DR |
1032 | .procname = "oom_kill_allocating_task", |
1033 | .data = &sysctl_oom_kill_allocating_task, | |
1034 | .maxlen = sizeof(sysctl_oom_kill_allocating_task), | |
1035 | .mode = 0644, | |
6d456111 | 1036 | .proc_handler = proc_dointvec, |
fe071d7e | 1037 | }, |
fef1bdd6 | 1038 | { |
fef1bdd6 DR |
1039 | .procname = "oom_dump_tasks", |
1040 | .data = &sysctl_oom_dump_tasks, | |
1041 | .maxlen = sizeof(sysctl_oom_dump_tasks), | |
1042 | .mode = 0644, | |
6d456111 | 1043 | .proc_handler = proc_dointvec, |
fef1bdd6 | 1044 | }, |
1da177e4 | 1045 | { |
1da177e4 LT |
1046 | .procname = "overcommit_ratio", |
1047 | .data = &sysctl_overcommit_ratio, | |
1048 | .maxlen = sizeof(sysctl_overcommit_ratio), | |
1049 | .mode = 0644, | |
6d456111 | 1050 | .proc_handler = proc_dointvec, |
1da177e4 LT |
1051 | }, |
1052 | { | |
1da177e4 LT |
1053 | .procname = "page-cluster", |
1054 | .data = &page_cluster, | |
1055 | .maxlen = sizeof(int), | |
1056 | .mode = 0644, | |
cb16e95f PH |
1057 | .proc_handler = proc_dointvec_minmax, |
1058 | .extra1 = &zero, | |
1da177e4 LT |
1059 | }, |
1060 | { | |
1da177e4 LT |
1061 | .procname = "dirty_background_ratio", |
1062 | .data = &dirty_background_ratio, | |
1063 | .maxlen = sizeof(dirty_background_ratio), | |
1064 | .mode = 0644, | |
6d456111 | 1065 | .proc_handler = dirty_background_ratio_handler, |
1da177e4 LT |
1066 | .extra1 = &zero, |
1067 | .extra2 = &one_hundred, | |
1068 | }, | |
2da02997 | 1069 | { |
2da02997 DR |
1070 | .procname = "dirty_background_bytes", |
1071 | .data = &dirty_background_bytes, | |
1072 | .maxlen = sizeof(dirty_background_bytes), | |
1073 | .mode = 0644, | |
6d456111 | 1074 | .proc_handler = dirty_background_bytes_handler, |
fc3501d4 | 1075 | .extra1 = &one_ul, |
2da02997 | 1076 | }, |
1da177e4 | 1077 | { |
1da177e4 LT |
1078 | .procname = "dirty_ratio", |
1079 | .data = &vm_dirty_ratio, | |
1080 | .maxlen = sizeof(vm_dirty_ratio), | |
1081 | .mode = 0644, | |
6d456111 | 1082 | .proc_handler = dirty_ratio_handler, |
1da177e4 LT |
1083 | .extra1 = &zero, |
1084 | .extra2 = &one_hundred, | |
1085 | }, | |
2da02997 | 1086 | { |
2da02997 DR |
1087 | .procname = "dirty_bytes", |
1088 | .data = &vm_dirty_bytes, | |
1089 | .maxlen = sizeof(vm_dirty_bytes), | |
1090 | .mode = 0644, | |
6d456111 | 1091 | .proc_handler = dirty_bytes_handler, |
9e4a5bda | 1092 | .extra1 = &dirty_bytes_min, |
2da02997 | 1093 | }, |
1da177e4 | 1094 | { |
1da177e4 | 1095 | .procname = "dirty_writeback_centisecs", |
f6ef9438 BS |
1096 | .data = &dirty_writeback_interval, |
1097 | .maxlen = sizeof(dirty_writeback_interval), | |
1da177e4 | 1098 | .mode = 0644, |
6d456111 | 1099 | .proc_handler = dirty_writeback_centisecs_handler, |
1da177e4 LT |
1100 | }, |
1101 | { | |
1da177e4 | 1102 | .procname = "dirty_expire_centisecs", |
f6ef9438 BS |
1103 | .data = &dirty_expire_interval, |
1104 | .maxlen = sizeof(dirty_expire_interval), | |
1da177e4 | 1105 | .mode = 0644, |
cb16e95f PH |
1106 | .proc_handler = proc_dointvec_minmax, |
1107 | .extra1 = &zero, | |
1da177e4 LT |
1108 | }, |
1109 | { | |
3965c9ae WL |
1110 | .procname = "nr_pdflush_threads", |
1111 | .mode = 0444 /* read-only */, | |
1112 | .proc_handler = pdflush_proc_obsolete, | |
1da177e4 LT |
1113 | }, |
1114 | { | |
1da177e4 LT |
1115 | .procname = "swappiness", |
1116 | .data = &vm_swappiness, | |
1117 | .maxlen = sizeof(vm_swappiness), | |
1118 | .mode = 0644, | |
6d456111 | 1119 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
1120 | .extra1 = &zero, |
1121 | .extra2 = &one_hundred, | |
1122 | }, | |
1123 | #ifdef CONFIG_HUGETLB_PAGE | |
06808b08 | 1124 | { |
1da177e4 | 1125 | .procname = "nr_hugepages", |
e5ff2159 | 1126 | .data = NULL, |
1da177e4 LT |
1127 | .maxlen = sizeof(unsigned long), |
1128 | .mode = 0644, | |
6d456111 | 1129 | .proc_handler = hugetlb_sysctl_handler, |
1da177e4 LT |
1130 | .extra1 = (void *)&hugetlb_zero, |
1131 | .extra2 = (void *)&hugetlb_infinity, | |
06808b08 LS |
1132 | }, |
1133 | #ifdef CONFIG_NUMA | |
1134 | { | |
1135 | .procname = "nr_hugepages_mempolicy", | |
1136 | .data = NULL, | |
1137 | .maxlen = sizeof(unsigned long), | |
1138 | .mode = 0644, | |
1139 | .proc_handler = &hugetlb_mempolicy_sysctl_handler, | |
1140 | .extra1 = (void *)&hugetlb_zero, | |
1141 | .extra2 = (void *)&hugetlb_infinity, | |
1142 | }, | |
1143 | #endif | |
1da177e4 | 1144 | { |
1da177e4 LT |
1145 | .procname = "hugetlb_shm_group", |
1146 | .data = &sysctl_hugetlb_shm_group, | |
1147 | .maxlen = sizeof(gid_t), | |
1148 | .mode = 0644, | |
6d456111 | 1149 | .proc_handler = proc_dointvec, |
1da177e4 | 1150 | }, |
396faf03 | 1151 | { |
396faf03 MG |
1152 | .procname = "hugepages_treat_as_movable", |
1153 | .data = &hugepages_treat_as_movable, | |
1154 | .maxlen = sizeof(int), | |
1155 | .mode = 0644, | |
6d456111 | 1156 | .proc_handler = hugetlb_treat_movable_handler, |
396faf03 | 1157 | }, |
d1c3fb1f | 1158 | { |
d1c3fb1f | 1159 | .procname = "nr_overcommit_hugepages", |
e5ff2159 AK |
1160 | .data = NULL, |
1161 | .maxlen = sizeof(unsigned long), | |
d1c3fb1f | 1162 | .mode = 0644, |
6d456111 | 1163 | .proc_handler = hugetlb_overcommit_handler, |
e5ff2159 AK |
1164 | .extra1 = (void *)&hugetlb_zero, |
1165 | .extra2 = (void *)&hugetlb_infinity, | |
d1c3fb1f | 1166 | }, |
1da177e4 LT |
1167 | #endif |
1168 | { | |
1da177e4 LT |
1169 | .procname = "lowmem_reserve_ratio", |
1170 | .data = &sysctl_lowmem_reserve_ratio, | |
1171 | .maxlen = sizeof(sysctl_lowmem_reserve_ratio), | |
1172 | .mode = 0644, | |
6d456111 | 1173 | .proc_handler = lowmem_reserve_ratio_sysctl_handler, |
1da177e4 | 1174 | }, |
9d0243bc | 1175 | { |
9d0243bc AM |
1176 | .procname = "drop_caches", |
1177 | .data = &sysctl_drop_caches, | |
1178 | .maxlen = sizeof(int), | |
1179 | .mode = 0644, | |
1180 | .proc_handler = drop_caches_sysctl_handler, | |
cb16e95f PH |
1181 | .extra1 = &one, |
1182 | .extra2 = &three, | |
9d0243bc | 1183 | }, |
76ab0f53 MG |
1184 | #ifdef CONFIG_COMPACTION |
1185 | { | |
1186 | .procname = "compact_memory", | |
1187 | .data = &sysctl_compact_memory, | |
1188 | .maxlen = sizeof(int), | |
1189 | .mode = 0200, | |
1190 | .proc_handler = sysctl_compaction_handler, | |
1191 | }, | |
5e771905 MG |
1192 | { |
1193 | .procname = "extfrag_threshold", | |
1194 | .data = &sysctl_extfrag_threshold, | |
1195 | .maxlen = sizeof(int), | |
1196 | .mode = 0644, | |
1197 | .proc_handler = sysctl_extfrag_handler, | |
1198 | .extra1 = &min_extfrag_threshold, | |
1199 | .extra2 = &max_extfrag_threshold, | |
1200 | }, | |
1201 | ||
76ab0f53 | 1202 | #endif /* CONFIG_COMPACTION */ |
1da177e4 | 1203 | { |
1da177e4 LT |
1204 | .procname = "min_free_kbytes", |
1205 | .data = &min_free_kbytes, | |
1206 | .maxlen = sizeof(min_free_kbytes), | |
1207 | .mode = 0644, | |
6d456111 | 1208 | .proc_handler = min_free_kbytes_sysctl_handler, |
1da177e4 LT |
1209 | .extra1 = &zero, |
1210 | }, | |
8ad4b1fb | 1211 | { |
8ad4b1fb RS |
1212 | .procname = "percpu_pagelist_fraction", |
1213 | .data = &percpu_pagelist_fraction, | |
1214 | .maxlen = sizeof(percpu_pagelist_fraction), | |
1215 | .mode = 0644, | |
6d456111 | 1216 | .proc_handler = percpu_pagelist_fraction_sysctl_handler, |
8ad4b1fb RS |
1217 | .extra1 = &min_percpu_pagelist_fract, |
1218 | }, | |
1da177e4 LT |
1219 | #ifdef CONFIG_MMU |
1220 | { | |
1da177e4 LT |
1221 | .procname = "max_map_count", |
1222 | .data = &sysctl_max_map_count, | |
1223 | .maxlen = sizeof(sysctl_max_map_count), | |
1224 | .mode = 0644, | |
3e26120c | 1225 | .proc_handler = proc_dointvec_minmax, |
70da2340 | 1226 | .extra1 = &zero, |
1da177e4 | 1227 | }, |
dd8632a1 PM |
1228 | #else |
1229 | { | |
dd8632a1 PM |
1230 | .procname = "nr_trim_pages", |
1231 | .data = &sysctl_nr_trim_pages, | |
1232 | .maxlen = sizeof(sysctl_nr_trim_pages), | |
1233 | .mode = 0644, | |
6d456111 | 1234 | .proc_handler = proc_dointvec_minmax, |
dd8632a1 PM |
1235 | .extra1 = &zero, |
1236 | }, | |
1da177e4 LT |
1237 | #endif |
1238 | { | |
1da177e4 LT |
1239 | .procname = "laptop_mode", |
1240 | .data = &laptop_mode, | |
1241 | .maxlen = sizeof(laptop_mode), | |
1242 | .mode = 0644, | |
6d456111 | 1243 | .proc_handler = proc_dointvec_jiffies, |
1da177e4 LT |
1244 | }, |
1245 | { | |
1da177e4 LT |
1246 | .procname = "block_dump", |
1247 | .data = &block_dump, | |
1248 | .maxlen = sizeof(block_dump), | |
1249 | .mode = 0644, | |
6d456111 | 1250 | .proc_handler = proc_dointvec, |
1da177e4 LT |
1251 | .extra1 = &zero, |
1252 | }, | |
1253 | { | |
1da177e4 LT |
1254 | .procname = "vfs_cache_pressure", |
1255 | .data = &sysctl_vfs_cache_pressure, | |
1256 | .maxlen = sizeof(sysctl_vfs_cache_pressure), | |
1257 | .mode = 0644, | |
6d456111 | 1258 | .proc_handler = proc_dointvec, |
1da177e4 LT |
1259 | .extra1 = &zero, |
1260 | }, | |
1261 | #ifdef HAVE_ARCH_PICK_MMAP_LAYOUT | |
1262 | { | |
1da177e4 LT |
1263 | .procname = "legacy_va_layout", |
1264 | .data = &sysctl_legacy_va_layout, | |
1265 | .maxlen = sizeof(sysctl_legacy_va_layout), | |
1266 | .mode = 0644, | |
6d456111 | 1267 | .proc_handler = proc_dointvec, |
1da177e4 LT |
1268 | .extra1 = &zero, |
1269 | }, | |
1270 | #endif | |
1743660b CL |
1271 | #ifdef CONFIG_NUMA |
1272 | { | |
1743660b CL |
1273 | .procname = "zone_reclaim_mode", |
1274 | .data = &zone_reclaim_mode, | |
1275 | .maxlen = sizeof(zone_reclaim_mode), | |
1276 | .mode = 0644, | |
6d456111 | 1277 | .proc_handler = proc_dointvec, |
c84db23c | 1278 | .extra1 = &zero, |
1743660b | 1279 | }, |
9614634f | 1280 | { |
9614634f CL |
1281 | .procname = "min_unmapped_ratio", |
1282 | .data = &sysctl_min_unmapped_ratio, | |
1283 | .maxlen = sizeof(sysctl_min_unmapped_ratio), | |
1284 | .mode = 0644, | |
6d456111 | 1285 | .proc_handler = sysctl_min_unmapped_ratio_sysctl_handler, |
9614634f CL |
1286 | .extra1 = &zero, |
1287 | .extra2 = &one_hundred, | |
1288 | }, | |
0ff38490 | 1289 | { |
0ff38490 CL |
1290 | .procname = "min_slab_ratio", |
1291 | .data = &sysctl_min_slab_ratio, | |
1292 | .maxlen = sizeof(sysctl_min_slab_ratio), | |
1293 | .mode = 0644, | |
6d456111 | 1294 | .proc_handler = sysctl_min_slab_ratio_sysctl_handler, |
0ff38490 CL |
1295 | .extra1 = &zero, |
1296 | .extra2 = &one_hundred, | |
1297 | }, | |
e6e5494c | 1298 | #endif |
77461ab3 CL |
1299 | #ifdef CONFIG_SMP |
1300 | { | |
77461ab3 CL |
1301 | .procname = "stat_interval", |
1302 | .data = &sysctl_stat_interval, | |
1303 | .maxlen = sizeof(sysctl_stat_interval), | |
1304 | .mode = 0644, | |
6d456111 | 1305 | .proc_handler = proc_dointvec_jiffies, |
77461ab3 CL |
1306 | }, |
1307 | #endif | |
6e141546 | 1308 | #ifdef CONFIG_MMU |
ed032189 | 1309 | { |
ed032189 | 1310 | .procname = "mmap_min_addr", |
788084ab EP |
1311 | .data = &dac_mmap_min_addr, |
1312 | .maxlen = sizeof(unsigned long), | |
ed032189 | 1313 | .mode = 0644, |
6d456111 | 1314 | .proc_handler = mmap_min_addr_handler, |
ed032189 | 1315 | }, |
6e141546 | 1316 | #endif |
f0c0b2b8 KH |
1317 | #ifdef CONFIG_NUMA |
1318 | { | |
f0c0b2b8 KH |
1319 | .procname = "numa_zonelist_order", |
1320 | .data = &numa_zonelist_order, | |
1321 | .maxlen = NUMA_ZONELIST_ORDER_LEN, | |
1322 | .mode = 0644, | |
6d456111 | 1323 | .proc_handler = numa_zonelist_order_handler, |
f0c0b2b8 KH |
1324 | }, |
1325 | #endif | |
2b8232ce | 1326 | #if (defined(CONFIG_X86_32) && !defined(CONFIG_UML))|| \ |
5c36e657 | 1327 | (defined(CONFIG_SUPERH) && defined(CONFIG_VSYSCALL)) |
e6e5494c | 1328 | { |
e6e5494c IM |
1329 | .procname = "vdso_enabled", |
1330 | .data = &vdso_enabled, | |
1331 | .maxlen = sizeof(vdso_enabled), | |
1332 | .mode = 0644, | |
6d456111 | 1333 | .proc_handler = proc_dointvec, |
e6e5494c IM |
1334 | .extra1 = &zero, |
1335 | }, | |
1da177e4 | 1336 | #endif |
195cf453 BG |
1337 | #ifdef CONFIG_HIGHMEM |
1338 | { | |
195cf453 BG |
1339 | .procname = "highmem_is_dirtyable", |
1340 | .data = &vm_highmem_is_dirtyable, | |
1341 | .maxlen = sizeof(vm_highmem_is_dirtyable), | |
1342 | .mode = 0644, | |
6d456111 | 1343 | .proc_handler = proc_dointvec_minmax, |
195cf453 BG |
1344 | .extra1 = &zero, |
1345 | .extra2 = &one, | |
1346 | }, | |
1347 | #endif | |
4be6f6bb | 1348 | { |
4be6f6bb PZ |
1349 | .procname = "scan_unevictable_pages", |
1350 | .data = &scan_unevictable_pages, | |
1351 | .maxlen = sizeof(scan_unevictable_pages), | |
1352 | .mode = 0644, | |
6d456111 | 1353 | .proc_handler = scan_unevictable_handler, |
4be6f6bb | 1354 | }, |
6a46079c AK |
1355 | #ifdef CONFIG_MEMORY_FAILURE |
1356 | { | |
6a46079c AK |
1357 | .procname = "memory_failure_early_kill", |
1358 | .data = &sysctl_memory_failure_early_kill, | |
1359 | .maxlen = sizeof(sysctl_memory_failure_early_kill), | |
1360 | .mode = 0644, | |
6d456111 | 1361 | .proc_handler = proc_dointvec_minmax, |
6a46079c AK |
1362 | .extra1 = &zero, |
1363 | .extra2 = &one, | |
1364 | }, | |
1365 | { | |
6a46079c AK |
1366 | .procname = "memory_failure_recovery", |
1367 | .data = &sysctl_memory_failure_recovery, | |
1368 | .maxlen = sizeof(sysctl_memory_failure_recovery), | |
1369 | .mode = 0644, | |
6d456111 | 1370 | .proc_handler = proc_dointvec_minmax, |
6a46079c AK |
1371 | .extra1 = &zero, |
1372 | .extra2 = &one, | |
1373 | }, | |
1374 | #endif | |
6fce56ec | 1375 | { } |
1da177e4 LT |
1376 | }; |
1377 | ||
2abc26fc | 1378 | #if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE) |
d8217f07 | 1379 | static struct ctl_table binfmt_misc_table[] = { |
6fce56ec | 1380 | { } |
2abc26fc EB |
1381 | }; |
1382 | #endif | |
1383 | ||
d8217f07 | 1384 | static struct ctl_table fs_table[] = { |
1da177e4 | 1385 | { |
1da177e4 LT |
1386 | .procname = "inode-nr", |
1387 | .data = &inodes_stat, | |
1388 | .maxlen = 2*sizeof(int), | |
1389 | .mode = 0444, | |
cffbc8aa | 1390 | .proc_handler = proc_nr_inodes, |
1da177e4 LT |
1391 | }, |
1392 | { | |
1da177e4 LT |
1393 | .procname = "inode-state", |
1394 | .data = &inodes_stat, | |
1395 | .maxlen = 7*sizeof(int), | |
1396 | .mode = 0444, | |
cffbc8aa | 1397 | .proc_handler = proc_nr_inodes, |
1da177e4 LT |
1398 | }, |
1399 | { | |
1da177e4 LT |
1400 | .procname = "file-nr", |
1401 | .data = &files_stat, | |
518de9b3 | 1402 | .maxlen = sizeof(files_stat), |
1da177e4 | 1403 | .mode = 0444, |
6d456111 | 1404 | .proc_handler = proc_nr_files, |
1da177e4 LT |
1405 | }, |
1406 | { | |
1da177e4 LT |
1407 | .procname = "file-max", |
1408 | .data = &files_stat.max_files, | |
518de9b3 | 1409 | .maxlen = sizeof(files_stat.max_files), |
1da177e4 | 1410 | .mode = 0644, |
518de9b3 | 1411 | .proc_handler = proc_doulongvec_minmax, |
1da177e4 | 1412 | }, |
9cfe015a | 1413 | { |
9cfe015a ED |
1414 | .procname = "nr_open", |
1415 | .data = &sysctl_nr_open, | |
1416 | .maxlen = sizeof(int), | |
1417 | .mode = 0644, | |
6d456111 | 1418 | .proc_handler = proc_dointvec_minmax, |
eceea0b3 AV |
1419 | .extra1 = &sysctl_nr_open_min, |
1420 | .extra2 = &sysctl_nr_open_max, | |
9cfe015a | 1421 | }, |
1da177e4 | 1422 | { |
1da177e4 LT |
1423 | .procname = "dentry-state", |
1424 | .data = &dentry_stat, | |
1425 | .maxlen = 6*sizeof(int), | |
1426 | .mode = 0444, | |
312d3ca8 | 1427 | .proc_handler = proc_nr_dentry, |
1da177e4 LT |
1428 | }, |
1429 | { | |
1da177e4 LT |
1430 | .procname = "overflowuid", |
1431 | .data = &fs_overflowuid, | |
1432 | .maxlen = sizeof(int), | |
1433 | .mode = 0644, | |
6d456111 | 1434 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
1435 | .extra1 = &minolduid, |
1436 | .extra2 = &maxolduid, | |
1437 | }, | |
1438 | { | |
1da177e4 LT |
1439 | .procname = "overflowgid", |
1440 | .data = &fs_overflowgid, | |
1441 | .maxlen = sizeof(int), | |
1442 | .mode = 0644, | |
6d456111 | 1443 | .proc_handler = proc_dointvec_minmax, |
1da177e4 LT |
1444 | .extra1 = &minolduid, |
1445 | .extra2 = &maxolduid, | |
1446 | }, | |
bfcd17a6 | 1447 | #ifdef CONFIG_FILE_LOCKING |
1da177e4 | 1448 | { |
1da177e4 LT |
1449 | .procname = "leases-enable", |
1450 | .data = &leases_enable, | |
1451 | .maxlen = sizeof(int), | |
1452 | .mode = 0644, | |
6d456111 | 1453 | .proc_handler = proc_dointvec, |
1da177e4 | 1454 | }, |
bfcd17a6 | 1455 | #endif |
1da177e4 LT |
1456 | #ifdef CONFIG_DNOTIFY |
1457 | { | |
1da177e4 LT |
1458 | .procname = "dir-notify-enable", |
1459 | .data = &dir_notify_enable, | |
1460 | .maxlen = sizeof(int), | |
1461 | .mode = 0644, | |
6d456111 | 1462 | .proc_handler = proc_dointvec, |
1da177e4 LT |
1463 | }, |
1464 | #endif | |
1465 | #ifdef CONFIG_MMU | |
bfcd17a6 | 1466 | #ifdef CONFIG_FILE_LOCKING |
1da177e4 | 1467 | { |
1da177e4 LT |
1468 | .procname = "lease-break-time", |
1469 | .data = &lease_break_time, | |
1470 | .maxlen = sizeof(int), | |
1471 | .mode = 0644, | |
6d456111 | 1472 | .proc_handler = proc_dointvec, |
1da177e4 | 1473 | }, |
bfcd17a6 | 1474 | #endif |
ebf3f09c | 1475 | #ifdef CONFIG_AIO |
1da177e4 | 1476 | { |
1da177e4 LT |
1477 | .procname = "aio-nr", |
1478 | .data = &aio_nr, | |
1479 | .maxlen = sizeof(aio_nr), | |
1480 | .mode = 0444, | |
6d456111 | 1481 | .proc_handler = proc_doulongvec_minmax, |
1da177e4 LT |
1482 | }, |
1483 | { | |
1da177e4 LT |
1484 | .procname = "aio-max-nr", |
1485 | .data = &aio_max_nr, | |
1486 | .maxlen = sizeof(aio_max_nr), | |
1487 | .mode = 0644, | |
6d456111 | 1488 | .proc_handler = proc_doulongvec_minmax, |
1da177e4 | 1489 | }, |
ebf3f09c | 1490 | #endif /* CONFIG_AIO */ |
2d9048e2 | 1491 | #ifdef CONFIG_INOTIFY_USER |
0399cb08 | 1492 | { |
0399cb08 RL |
1493 | .procname = "inotify", |
1494 | .mode = 0555, | |
1495 | .child = inotify_table, | |
1496 | }, | |
1497 | #endif | |
7ef9964e DL |
1498 | #ifdef CONFIG_EPOLL |
1499 | { | |
1500 | .procname = "epoll", | |
1501 | .mode = 0555, | |
1502 | .child = epoll_table, | |
1503 | }, | |
1504 | #endif | |
1da177e4 | 1505 | #endif |
800179c9 KC |
1506 | { |
1507 | .procname = "protected_symlinks", | |
1508 | .data = &sysctl_protected_symlinks, | |
1509 | .maxlen = sizeof(int), | |
1510 | .mode = 0600, | |
1511 | .proc_handler = proc_dointvec_minmax, | |
1512 | .extra1 = &zero, | |
1513 | .extra2 = &one, | |
1514 | }, | |
1515 | { | |
1516 | .procname = "protected_hardlinks", | |
1517 | .data = &sysctl_protected_hardlinks, | |
1518 | .maxlen = sizeof(int), | |
1519 | .mode = 0600, | |
1520 | .proc_handler = proc_dointvec_minmax, | |
1521 | .extra1 = &zero, | |
1522 | .extra2 = &one, | |
1523 | }, | |
d6e71144 | 1524 | { |
d6e71144 AC |
1525 | .procname = "suid_dumpable", |
1526 | .data = &suid_dumpable, | |
1527 | .maxlen = sizeof(int), | |
1528 | .mode = 0644, | |
54b50199 | 1529 | .proc_handler = proc_dointvec_minmax_coredump, |
8e654fba MW |
1530 | .extra1 = &zero, |
1531 | .extra2 = &two, | |
d6e71144 | 1532 | }, |
2abc26fc EB |
1533 | #if defined(CONFIG_BINFMT_MISC) || defined(CONFIG_BINFMT_MISC_MODULE) |
1534 | { | |
2abc26fc EB |
1535 | .procname = "binfmt_misc", |
1536 | .mode = 0555, | |
1537 | .child = binfmt_misc_table, | |
1538 | }, | |
1539 | #endif | |
b492e95b | 1540 | { |
ff9da691 JA |
1541 | .procname = "pipe-max-size", |
1542 | .data = &pipe_max_size, | |
b492e95b JA |
1543 | .maxlen = sizeof(int), |
1544 | .mode = 0644, | |
ff9da691 JA |
1545 | .proc_handler = &pipe_proc_fn, |
1546 | .extra1 = &pipe_min_size, | |
b492e95b | 1547 | }, |
6fce56ec | 1548 | { } |
1da177e4 LT |
1549 | }; |
1550 | ||
d8217f07 | 1551 | static struct ctl_table debug_table[] = { |
ab3c68ee | 1552 | #if defined(CONFIG_X86) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) || \ |
5c423369 | 1553 | defined(CONFIG_S390) || defined(CONFIG_TILE) || defined(CONFIG_ARM64) |
abd4f750 | 1554 | { |
abd4f750 MAS |
1555 | .procname = "exception-trace", |
1556 | .data = &show_unhandled_signals, | |
1557 | .maxlen = sizeof(int), | |
1558 | .mode = 0644, | |
1559 | .proc_handler = proc_dointvec | |
1560 | }, | |
b2be84df MH |
1561 | #endif |
1562 | #if defined(CONFIG_OPTPROBES) | |
1563 | { | |
1564 | .procname = "kprobes-optimization", | |
1565 | .data = &sysctl_kprobes_optimization, | |
1566 | .maxlen = sizeof(int), | |
1567 | .mode = 0644, | |
1568 | .proc_handler = proc_kprobes_optimization_handler, | |
1569 | .extra1 = &zero, | |
1570 | .extra2 = &one, | |
1571 | }, | |
abd4f750 | 1572 | #endif |
6fce56ec | 1573 | { } |
1da177e4 LT |
1574 | }; |
1575 | ||
d8217f07 | 1576 | static struct ctl_table dev_table[] = { |
6fce56ec | 1577 | { } |
0eeca283 | 1578 | }; |
1da177e4 | 1579 | |
de4e83bd | 1580 | int __init sysctl_init(void) |
d912b0cc | 1581 | { |
fd4b616b SR |
1582 | struct ctl_table_header *hdr; |
1583 | ||
1584 | hdr = register_sysctl_table(sysctl_base_table); | |
1585 | kmemleak_not_leak(hdr); | |
d912b0cc EB |
1586 | return 0; |
1587 | } | |
1588 | ||
b89a8171 EB |
1589 | #endif /* CONFIG_SYSCTL */ |
1590 | ||
1da177e4 LT |
1591 | /* |
1592 | * /proc/sys support | |
1593 | */ | |
1594 | ||
b89a8171 | 1595 | #ifdef CONFIG_PROC_SYSCTL |
1da177e4 | 1596 | |
b1ba4ddd | 1597 | static int _proc_do_string(void* data, int maxlen, int write, |
8d65af78 | 1598 | void __user *buffer, |
b1ba4ddd | 1599 | size_t *lenp, loff_t *ppos) |
1da177e4 LT |
1600 | { |
1601 | size_t len; | |
1602 | char __user *p; | |
1603 | char c; | |
8d060877 ON |
1604 | |
1605 | if (!data || !maxlen || !*lenp) { | |
1da177e4 LT |
1606 | *lenp = 0; |
1607 | return 0; | |
1608 | } | |
8d060877 | 1609 | |
1da177e4 LT |
1610 | if (write) { |
1611 | len = 0; | |
1612 | p = buffer; | |
1613 | while (len < *lenp) { | |
1614 | if (get_user(c, p++)) | |
1615 | return -EFAULT; | |
1616 | if (c == 0 || c == '\n') | |
1617 | break; | |
1618 | len++; | |
1619 | } | |
f5dd3d6f SV |
1620 | if (len >= maxlen) |
1621 | len = maxlen-1; | |
1622 | if(copy_from_user(data, buffer, len)) | |
1da177e4 | 1623 | return -EFAULT; |
f5dd3d6f | 1624 | ((char *) data)[len] = 0; |
1da177e4 LT |
1625 | *ppos += *lenp; |
1626 | } else { | |
f5dd3d6f SV |
1627 | len = strlen(data); |
1628 | if (len > maxlen) | |
1629 | len = maxlen; | |
8d060877 ON |
1630 | |
1631 | if (*ppos > len) { | |
1632 | *lenp = 0; | |
1633 | return 0; | |
1634 | } | |
1635 | ||
1636 | data += *ppos; | |
1637 | len -= *ppos; | |
1638 | ||
1da177e4 LT |
1639 | if (len > *lenp) |
1640 | len = *lenp; | |
1641 | if (len) | |
f5dd3d6f | 1642 | if(copy_to_user(buffer, data, len)) |
1da177e4 LT |
1643 | return -EFAULT; |
1644 | if (len < *lenp) { | |
1645 | if(put_user('\n', ((char __user *) buffer) + len)) | |
1646 | return -EFAULT; | |
1647 | len++; | |
1648 | } | |
1649 | *lenp = len; | |
1650 | *ppos += len; | |
1651 | } | |
1652 | return 0; | |
1653 | } | |
1654 | ||
f5dd3d6f SV |
1655 | /** |
1656 | * proc_dostring - read a string sysctl | |
1657 | * @table: the sysctl table | |
1658 | * @write: %TRUE if this is a write to the sysctl file | |
f5dd3d6f SV |
1659 | * @buffer: the user buffer |
1660 | * @lenp: the size of the user buffer | |
1661 | * @ppos: file position | |
1662 | * | |
1663 | * Reads/writes a string from/to the user buffer. If the kernel | |
1664 | * buffer provided is not large enough to hold the string, the | |
1665 | * string is truncated. The copied string is %NULL-terminated. | |
1666 | * If the string is being read by the user process, it is copied | |
1667 | * and a newline '\n' is added. It is truncated if the buffer is | |
1668 | * not large enough. | |
1669 | * | |
1670 | * Returns 0 on success. | |
1671 | */ | |
8d65af78 | 1672 | int proc_dostring(struct ctl_table *table, int write, |
f5dd3d6f SV |
1673 | void __user *buffer, size_t *lenp, loff_t *ppos) |
1674 | { | |
8d65af78 | 1675 | return _proc_do_string(table->data, table->maxlen, write, |
f5dd3d6f SV |
1676 | buffer, lenp, ppos); |
1677 | } | |
1678 | ||
00b7c339 AW |
1679 | static size_t proc_skip_spaces(char **buf) |
1680 | { | |
1681 | size_t ret; | |
1682 | char *tmp = skip_spaces(*buf); | |
1683 | ret = tmp - *buf; | |
1684 | *buf = tmp; | |
1685 | return ret; | |
1686 | } | |
1687 | ||
9f977fb7 OP |
1688 | static void proc_skip_char(char **buf, size_t *size, const char v) |
1689 | { | |
1690 | while (*size) { | |
1691 | if (**buf != v) | |
1692 | break; | |
1693 | (*size)--; | |
1694 | (*buf)++; | |
1695 | } | |
1696 | } | |
1697 | ||
00b7c339 AW |
1698 | #define TMPBUFLEN 22 |
1699 | /** | |
0fc377bd | 1700 | * proc_get_long - reads an ASCII formatted integer from a user buffer |
00b7c339 | 1701 | * |
0fc377bd RD |
1702 | * @buf: a kernel buffer |
1703 | * @size: size of the kernel buffer | |
1704 | * @val: this is where the number will be stored | |
1705 | * @neg: set to %TRUE if number is negative | |
1706 | * @perm_tr: a vector which contains the allowed trailers | |
1707 | * @perm_tr_len: size of the perm_tr vector | |
1708 | * @tr: pointer to store the trailer character | |
00b7c339 | 1709 | * |
0fc377bd RD |
1710 | * In case of success %0 is returned and @buf and @size are updated with |
1711 | * the amount of bytes read. If @tr is non-NULL and a trailing | |
1712 | * character exists (size is non-zero after returning from this | |
1713 | * function), @tr is updated with the trailing character. | |
00b7c339 AW |
1714 | */ |
1715 | static int proc_get_long(char **buf, size_t *size, | |
1716 | unsigned long *val, bool *neg, | |
1717 | const char *perm_tr, unsigned perm_tr_len, char *tr) | |
1718 | { | |
1719 | int len; | |
1720 | char *p, tmp[TMPBUFLEN]; | |
1721 | ||
1722 | if (!*size) | |
1723 | return -EINVAL; | |
1724 | ||
1725 | len = *size; | |
1726 | if (len > TMPBUFLEN - 1) | |
1727 | len = TMPBUFLEN - 1; | |
1728 | ||
1729 | memcpy(tmp, *buf, len); | |
1730 | ||
1731 | tmp[len] = 0; | |
1732 | p = tmp; | |
1733 | if (*p == '-' && *size > 1) { | |
1734 | *neg = true; | |
1735 | p++; | |
1736 | } else | |
1737 | *neg = false; | |
1738 | if (!isdigit(*p)) | |
1739 | return -EINVAL; | |
1740 | ||
1741 | *val = simple_strtoul(p, &p, 0); | |
1742 | ||
1743 | len = p - tmp; | |
1744 | ||
1745 | /* We don't know if the next char is whitespace thus we may accept | |
1746 | * invalid integers (e.g. 1234...a) or two integers instead of one | |
1747 | * (e.g. 123...1). So lets not allow such large numbers. */ | |
1748 | if (len == TMPBUFLEN - 1) | |
1749 | return -EINVAL; | |
1750 | ||
1751 | if (len < *size && perm_tr_len && !memchr(perm_tr, *p, perm_tr_len)) | |
1752 | return -EINVAL; | |
1da177e4 | 1753 | |
00b7c339 AW |
1754 | if (tr && (len < *size)) |
1755 | *tr = *p; | |
1756 | ||
1757 | *buf += len; | |
1758 | *size -= len; | |
1759 | ||
1760 | return 0; | |
1761 | } | |
1762 | ||
1763 | /** | |
0fc377bd | 1764 | * proc_put_long - converts an integer to a decimal ASCII formatted string |
00b7c339 | 1765 | * |
0fc377bd RD |
1766 | * @buf: the user buffer |
1767 | * @size: the size of the user buffer | |
1768 | * @val: the integer to be converted | |
1769 | * @neg: sign of the number, %TRUE for negative | |
00b7c339 | 1770 | * |
0fc377bd RD |
1771 | * In case of success %0 is returned and @buf and @size are updated with |
1772 | * the amount of bytes written. | |
00b7c339 AW |
1773 | */ |
1774 | static int proc_put_long(void __user **buf, size_t *size, unsigned long val, | |
1775 | bool neg) | |
1776 | { | |
1777 | int len; | |
1778 | char tmp[TMPBUFLEN], *p = tmp; | |
1779 | ||
1780 | sprintf(p, "%s%lu", neg ? "-" : "", val); | |
1781 | len = strlen(tmp); | |
1782 | if (len > *size) | |
1783 | len = *size; | |
1784 | if (copy_to_user(*buf, tmp, len)) | |
1785 | return -EFAULT; | |
1786 | *size -= len; | |
1787 | *buf += len; | |
1788 | return 0; | |
1789 | } | |
1790 | #undef TMPBUFLEN | |
1791 | ||
1792 | static int proc_put_char(void __user **buf, size_t *size, char c) | |
1793 | { | |
1794 | if (*size) { | |
1795 | char __user **buffer = (char __user **)buf; | |
1796 | if (put_user(c, *buffer)) | |
1797 | return -EFAULT; | |
1798 | (*size)--, (*buffer)++; | |
1799 | *buf = *buffer; | |
1800 | } | |
1801 | return 0; | |
1802 | } | |
1da177e4 | 1803 | |
00b7c339 | 1804 | static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp, |
1da177e4 LT |
1805 | int *valp, |
1806 | int write, void *data) | |
1807 | { | |
1808 | if (write) { | |
1809 | *valp = *negp ? -*lvalp : *lvalp; | |
1810 | } else { | |
1811 | int val = *valp; | |
1812 | if (val < 0) { | |
00b7c339 | 1813 | *negp = true; |
1da177e4 LT |
1814 | *lvalp = (unsigned long)-val; |
1815 | } else { | |
00b7c339 | 1816 | *negp = false; |
1da177e4 LT |
1817 | *lvalp = (unsigned long)val; |
1818 | } | |
1819 | } | |
1820 | return 0; | |
1821 | } | |
1822 | ||
00b7c339 AW |
1823 | static const char proc_wspace_sep[] = { ' ', '\t', '\n' }; |
1824 | ||
d8217f07 | 1825 | static int __do_proc_dointvec(void *tbl_data, struct ctl_table *table, |
8d65af78 | 1826 | int write, void __user *buffer, |
fcfbd547 | 1827 | size_t *lenp, loff_t *ppos, |
00b7c339 | 1828 | int (*conv)(bool *negp, unsigned long *lvalp, int *valp, |
1da177e4 LT |
1829 | int write, void *data), |
1830 | void *data) | |
1831 | { | |
00b7c339 AW |
1832 | int *i, vleft, first = 1, err = 0; |
1833 | unsigned long page = 0; | |
1834 | size_t left; | |
1835 | char *kbuf; | |
1da177e4 | 1836 | |
00b7c339 | 1837 | if (!tbl_data || !table->maxlen || !*lenp || (*ppos && !write)) { |
1da177e4 LT |
1838 | *lenp = 0; |
1839 | return 0; | |
1840 | } | |
1841 | ||
fcfbd547 | 1842 | i = (int *) tbl_data; |
1da177e4 LT |
1843 | vleft = table->maxlen / sizeof(*i); |
1844 | left = *lenp; | |
1845 | ||
1846 | if (!conv) | |
1847 | conv = do_proc_dointvec_conv; | |
1848 | ||
00b7c339 AW |
1849 | if (write) { |
1850 | if (left > PAGE_SIZE - 1) | |
1851 | left = PAGE_SIZE - 1; | |
1852 | page = __get_free_page(GFP_TEMPORARY); | |
1853 | kbuf = (char *) page; | |
1854 | if (!kbuf) | |
1855 | return -ENOMEM; | |
1856 | if (copy_from_user(kbuf, buffer, left)) { | |
1857 | err = -EFAULT; | |
1858 | goto free; | |
1859 | } | |
1860 | kbuf[left] = 0; | |
1861 | } | |
1862 | ||
1da177e4 | 1863 | for (; left && vleft--; i++, first=0) { |
00b7c339 AW |
1864 | unsigned long lval; |
1865 | bool neg; | |
1da177e4 | 1866 | |
00b7c339 AW |
1867 | if (write) { |
1868 | left -= proc_skip_spaces(&kbuf); | |
1da177e4 | 1869 | |
563b0467 O |
1870 | if (!left) |
1871 | break; | |
00b7c339 AW |
1872 | err = proc_get_long(&kbuf, &left, &lval, &neg, |
1873 | proc_wspace_sep, | |
1874 | sizeof(proc_wspace_sep), NULL); | |
1875 | if (err) | |
1da177e4 | 1876 | break; |
00b7c339 AW |
1877 | if (conv(&neg, &lval, i, 1, data)) { |
1878 | err = -EINVAL; | |
1da177e4 | 1879 | break; |
00b7c339 | 1880 | } |
1da177e4 | 1881 | } else { |
00b7c339 AW |
1882 | if (conv(&neg, &lval, i, 0, data)) { |
1883 | err = -EINVAL; | |
1884 | break; | |
1885 | } | |
1da177e4 | 1886 | if (!first) |
00b7c339 AW |
1887 | err = proc_put_char(&buffer, &left, '\t'); |
1888 | if (err) | |
1889 | break; | |
1890 | err = proc_put_long(&buffer, &left, lval, neg); | |
1891 | if (err) | |
1da177e4 | 1892 | break; |
1da177e4 LT |
1893 | } |
1894 | } | |
1895 | ||
00b7c339 AW |
1896 | if (!write && !first && left && !err) |
1897 | err = proc_put_char(&buffer, &left, '\n'); | |
563b0467 | 1898 | if (write && !err && left) |
00b7c339 AW |
1899 | left -= proc_skip_spaces(&kbuf); |
1900 | free: | |
1da177e4 | 1901 | if (write) { |
00b7c339 AW |
1902 | free_page(page); |
1903 | if (first) | |
1904 | return err ? : -EINVAL; | |
1da177e4 | 1905 | } |
1da177e4 LT |
1906 | *lenp -= left; |
1907 | *ppos += *lenp; | |
00b7c339 | 1908 | return err; |
1da177e4 LT |
1909 | } |
1910 | ||
8d65af78 | 1911 | static int do_proc_dointvec(struct ctl_table *table, int write, |
fcfbd547 | 1912 | void __user *buffer, size_t *lenp, loff_t *ppos, |
00b7c339 | 1913 | int (*conv)(bool *negp, unsigned long *lvalp, int *valp, |
fcfbd547 KK |
1914 | int write, void *data), |
1915 | void *data) | |
1916 | { | |
8d65af78 | 1917 | return __do_proc_dointvec(table->data, table, write, |
fcfbd547 KK |
1918 | buffer, lenp, ppos, conv, data); |
1919 | } | |
1920 | ||
1da177e4 LT |
1921 | /** |
1922 | * proc_dointvec - read a vector of integers | |
1923 | * @table: the sysctl table | |
1924 | * @write: %TRUE if this is a write to the sysctl file | |
1da177e4 LT |
1925 | * @buffer: the user buffer |
1926 | * @lenp: the size of the user buffer | |
1927 | * @ppos: file position | |
1928 | * | |
1929 | * Reads/writes up to table->maxlen/sizeof(unsigned int) integer | |
1930 | * values from/to the user buffer, treated as an ASCII string. | |
1931 | * | |
1932 | * Returns 0 on success. | |
1933 | */ | |
8d65af78 | 1934 | int proc_dointvec(struct ctl_table *table, int write, |
1da177e4 LT |
1935 | void __user *buffer, size_t *lenp, loff_t *ppos) |
1936 | { | |
8d65af78 | 1937 | return do_proc_dointvec(table,write,buffer,lenp,ppos, |
1da177e4 LT |
1938 | NULL,NULL); |
1939 | } | |
1940 | ||
34f5a398 | 1941 | /* |
25ddbb18 AK |
1942 | * Taint values can only be increased |
1943 | * This means we can safely use a temporary. | |
34f5a398 | 1944 | */ |
8d65af78 | 1945 | static int proc_taint(struct ctl_table *table, int write, |
34f5a398 TT |
1946 | void __user *buffer, size_t *lenp, loff_t *ppos) |
1947 | { | |
25ddbb18 AK |
1948 | struct ctl_table t; |
1949 | unsigned long tmptaint = get_taint(); | |
1950 | int err; | |
34f5a398 | 1951 | |
91fcd412 | 1952 | if (write && !capable(CAP_SYS_ADMIN)) |
34f5a398 TT |
1953 | return -EPERM; |
1954 | ||
25ddbb18 AK |
1955 | t = *table; |
1956 | t.data = &tmptaint; | |
8d65af78 | 1957 | err = proc_doulongvec_minmax(&t, write, buffer, lenp, ppos); |
25ddbb18 AK |
1958 | if (err < 0) |
1959 | return err; | |
1960 | ||
1961 | if (write) { | |
1962 | /* | |
1963 | * Poor man's atomic or. Not worth adding a primitive | |
1964 | * to everyone's atomic.h for this | |
1965 | */ | |
1966 | int i; | |
1967 | for (i = 0; i < BITS_PER_LONG && tmptaint >> i; i++) { | |
1968 | if ((tmptaint >> i) & 1) | |
1969 | add_taint(i); | |
1970 | } | |
1971 | } | |
1972 | ||
1973 | return err; | |
34f5a398 TT |
1974 | } |
1975 | ||
bfdc0b49 | 1976 | #ifdef CONFIG_PRINTK |
620f6e8e | 1977 | static int proc_dointvec_minmax_sysadmin(struct ctl_table *table, int write, |
bfdc0b49 RW |
1978 | void __user *buffer, size_t *lenp, loff_t *ppos) |
1979 | { | |
1980 | if (write && !capable(CAP_SYS_ADMIN)) | |
1981 | return -EPERM; | |
1982 | ||
1983 | return proc_dointvec_minmax(table, write, buffer, lenp, ppos); | |
1984 | } | |
1985 | #endif | |
1986 | ||
1da177e4 LT |
1987 | struct do_proc_dointvec_minmax_conv_param { |
1988 | int *min; | |
1989 | int *max; | |
1990 | }; | |
1991 | ||
00b7c339 AW |
1992 | static int do_proc_dointvec_minmax_conv(bool *negp, unsigned long *lvalp, |
1993 | int *valp, | |
1da177e4 LT |
1994 | int write, void *data) |
1995 | { | |
1996 | struct do_proc_dointvec_minmax_conv_param *param = data; | |
1997 | if (write) { | |
1998 | int val = *negp ? -*lvalp : *lvalp; | |
1999 | if ((param->min && *param->min > val) || | |
2000 | (param->max && *param->max < val)) | |
2001 | return -EINVAL; | |
2002 | *valp = val; | |
2003 | } else { | |
2004 | int val = *valp; | |
2005 | if (val < 0) { | |
00b7c339 | 2006 | *negp = true; |
1da177e4 LT |
2007 | *lvalp = (unsigned long)-val; |
2008 | } else { | |
00b7c339 | 2009 | *negp = false; |
1da177e4 LT |
2010 | *lvalp = (unsigned long)val; |
2011 | } | |
2012 | } | |
2013 | return 0; | |
2014 | } | |
2015 | ||
2016 | /** | |
2017 | * proc_dointvec_minmax - read a vector of integers with min/max values | |
2018 | * @table: the sysctl table | |
2019 | * @write: %TRUE if this is a write to the sysctl file | |
1da177e4 LT |
2020 | * @buffer: the user buffer |
2021 | * @lenp: the size of the user buffer | |
2022 | * @ppos: file position | |
2023 | * | |
2024 | * Reads/writes up to table->maxlen/sizeof(unsigned int) integer | |
2025 | * values from/to the user buffer, treated as an ASCII string. | |
2026 | * | |
2027 | * This routine will ensure the values are within the range specified by | |
2028 | * table->extra1 (min) and table->extra2 (max). | |
2029 | * | |
2030 | * Returns 0 on success. | |
2031 | */ | |
8d65af78 | 2032 | int proc_dointvec_minmax(struct ctl_table *table, int write, |
1da177e4 LT |
2033 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2034 | { | |
2035 | struct do_proc_dointvec_minmax_conv_param param = { | |
2036 | .min = (int *) table->extra1, | |
2037 | .max = (int *) table->extra2, | |
2038 | }; | |
8d65af78 | 2039 | return do_proc_dointvec(table, write, buffer, lenp, ppos, |
1da177e4 LT |
2040 | do_proc_dointvec_minmax_conv, ¶m); |
2041 | } | |
2042 | ||
54b50199 KC |
2043 | static void validate_coredump_safety(void) |
2044 | { | |
046d662f | 2045 | #ifdef CONFIG_COREDUMP |
54b50199 KC |
2046 | if (suid_dumpable == SUID_DUMPABLE_SAFE && |
2047 | core_pattern[0] != '/' && core_pattern[0] != '|') { | |
2048 | printk(KERN_WARNING "Unsafe core_pattern used with "\ | |
2049 | "suid_dumpable=2. Pipe handler or fully qualified "\ | |
2050 | "core dump path required.\n"); | |
2051 | } | |
046d662f | 2052 | #endif |
54b50199 KC |
2053 | } |
2054 | ||
2055 | static int proc_dointvec_minmax_coredump(struct ctl_table *table, int write, | |
2056 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
2057 | { | |
2058 | int error = proc_dointvec_minmax(table, write, buffer, lenp, ppos); | |
2059 | if (!error) | |
2060 | validate_coredump_safety(); | |
2061 | return error; | |
2062 | } | |
2063 | ||
046d662f | 2064 | #ifdef CONFIG_COREDUMP |
54b50199 KC |
2065 | static int proc_dostring_coredump(struct ctl_table *table, int write, |
2066 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
2067 | { | |
2068 | int error = proc_dostring(table, write, buffer, lenp, ppos); | |
2069 | if (!error) | |
2070 | validate_coredump_safety(); | |
2071 | return error; | |
2072 | } | |
046d662f | 2073 | #endif |
54b50199 | 2074 | |
d8217f07 | 2075 | static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int write, |
1da177e4 LT |
2076 | void __user *buffer, |
2077 | size_t *lenp, loff_t *ppos, | |
2078 | unsigned long convmul, | |
2079 | unsigned long convdiv) | |
2080 | { | |
00b7c339 AW |
2081 | unsigned long *i, *min, *max; |
2082 | int vleft, first = 1, err = 0; | |
2083 | unsigned long page = 0; | |
2084 | size_t left; | |
2085 | char *kbuf; | |
2086 | ||
2087 | if (!data || !table->maxlen || !*lenp || (*ppos && !write)) { | |
1da177e4 LT |
2088 | *lenp = 0; |
2089 | return 0; | |
2090 | } | |
00b7c339 | 2091 | |
fcfbd547 | 2092 | i = (unsigned long *) data; |
1da177e4 LT |
2093 | min = (unsigned long *) table->extra1; |
2094 | max = (unsigned long *) table->extra2; | |
2095 | vleft = table->maxlen / sizeof(unsigned long); | |
2096 | left = *lenp; | |
00b7c339 AW |
2097 | |
2098 | if (write) { | |
2099 | if (left > PAGE_SIZE - 1) | |
2100 | left = PAGE_SIZE - 1; | |
2101 | page = __get_free_page(GFP_TEMPORARY); | |
2102 | kbuf = (char *) page; | |
2103 | if (!kbuf) | |
2104 | return -ENOMEM; | |
2105 | if (copy_from_user(kbuf, buffer, left)) { | |
2106 | err = -EFAULT; | |
2107 | goto free; | |
2108 | } | |
2109 | kbuf[left] = 0; | |
2110 | } | |
2111 | ||
27b3d80a | 2112 | for (; left && vleft--; i++, first = 0) { |
00b7c339 AW |
2113 | unsigned long val; |
2114 | ||
1da177e4 | 2115 | if (write) { |
00b7c339 AW |
2116 | bool neg; |
2117 | ||
2118 | left -= proc_skip_spaces(&kbuf); | |
2119 | ||
2120 | err = proc_get_long(&kbuf, &left, &val, &neg, | |
2121 | proc_wspace_sep, | |
2122 | sizeof(proc_wspace_sep), NULL); | |
2123 | if (err) | |
1da177e4 LT |
2124 | break; |
2125 | if (neg) | |
1da177e4 LT |
2126 | continue; |
2127 | if ((min && val < *min) || (max && val > *max)) | |
2128 | continue; | |
2129 | *i = val; | |
2130 | } else { | |
00b7c339 | 2131 | val = convdiv * (*i) / convmul; |
1da177e4 | 2132 | if (!first) |
00b7c339 AW |
2133 | err = proc_put_char(&buffer, &left, '\t'); |
2134 | err = proc_put_long(&buffer, &left, val, false); | |
2135 | if (err) | |
2136 | break; | |
1da177e4 LT |
2137 | } |
2138 | } | |
2139 | ||
00b7c339 AW |
2140 | if (!write && !first && left && !err) |
2141 | err = proc_put_char(&buffer, &left, '\n'); | |
2142 | if (write && !err) | |
2143 | left -= proc_skip_spaces(&kbuf); | |
2144 | free: | |
1da177e4 | 2145 | if (write) { |
00b7c339 AW |
2146 | free_page(page); |
2147 | if (first) | |
2148 | return err ? : -EINVAL; | |
1da177e4 | 2149 | } |
1da177e4 LT |
2150 | *lenp -= left; |
2151 | *ppos += *lenp; | |
00b7c339 | 2152 | return err; |
1da177e4 LT |
2153 | } |
2154 | ||
d8217f07 | 2155 | static int do_proc_doulongvec_minmax(struct ctl_table *table, int write, |
fcfbd547 KK |
2156 | void __user *buffer, |
2157 | size_t *lenp, loff_t *ppos, | |
2158 | unsigned long convmul, | |
2159 | unsigned long convdiv) | |
2160 | { | |
2161 | return __do_proc_doulongvec_minmax(table->data, table, write, | |
8d65af78 | 2162 | buffer, lenp, ppos, convmul, convdiv); |
fcfbd547 KK |
2163 | } |
2164 | ||
1da177e4 LT |
2165 | /** |
2166 | * proc_doulongvec_minmax - read a vector of long integers with min/max values | |
2167 | * @table: the sysctl table | |
2168 | * @write: %TRUE if this is a write to the sysctl file | |
1da177e4 LT |
2169 | * @buffer: the user buffer |
2170 | * @lenp: the size of the user buffer | |
2171 | * @ppos: file position | |
2172 | * | |
2173 | * Reads/writes up to table->maxlen/sizeof(unsigned long) unsigned long | |
2174 | * values from/to the user buffer, treated as an ASCII string. | |
2175 | * | |
2176 | * This routine will ensure the values are within the range specified by | |
2177 | * table->extra1 (min) and table->extra2 (max). | |
2178 | * | |
2179 | * Returns 0 on success. | |
2180 | */ | |
8d65af78 | 2181 | int proc_doulongvec_minmax(struct ctl_table *table, int write, |
1da177e4 LT |
2182 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2183 | { | |
8d65af78 | 2184 | return do_proc_doulongvec_minmax(table, write, buffer, lenp, ppos, 1l, 1l); |
1da177e4 LT |
2185 | } |
2186 | ||
2187 | /** | |
2188 | * proc_doulongvec_ms_jiffies_minmax - read a vector of millisecond values with min/max values | |
2189 | * @table: the sysctl table | |
2190 | * @write: %TRUE if this is a write to the sysctl file | |
1da177e4 LT |
2191 | * @buffer: the user buffer |
2192 | * @lenp: the size of the user buffer | |
2193 | * @ppos: file position | |
2194 | * | |
2195 | * Reads/writes up to table->maxlen/sizeof(unsigned long) unsigned long | |
2196 | * values from/to the user buffer, treated as an ASCII string. The values | |
2197 | * are treated as milliseconds, and converted to jiffies when they are stored. | |
2198 | * | |
2199 | * This routine will ensure the values are within the range specified by | |
2200 | * table->extra1 (min) and table->extra2 (max). | |
2201 | * | |
2202 | * Returns 0 on success. | |
2203 | */ | |
d8217f07 | 2204 | int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write, |
1da177e4 LT |
2205 | void __user *buffer, |
2206 | size_t *lenp, loff_t *ppos) | |
2207 | { | |
8d65af78 | 2208 | return do_proc_doulongvec_minmax(table, write, buffer, |
1da177e4 LT |
2209 | lenp, ppos, HZ, 1000l); |
2210 | } | |
2211 | ||
2212 | ||
00b7c339 | 2213 | static int do_proc_dointvec_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4 LT |
2214 | int *valp, |
2215 | int write, void *data) | |
2216 | { | |
2217 | if (write) { | |
cba9f33d BS |
2218 | if (*lvalp > LONG_MAX / HZ) |
2219 | return 1; | |
1da177e4 LT |
2220 | *valp = *negp ? -(*lvalp*HZ) : (*lvalp*HZ); |
2221 | } else { | |
2222 | int val = *valp; | |
2223 | unsigned long lval; | |
2224 | if (val < 0) { | |
00b7c339 | 2225 | *negp = true; |
1da177e4 LT |
2226 | lval = (unsigned long)-val; |
2227 | } else { | |
00b7c339 | 2228 | *negp = false; |
1da177e4 LT |
2229 | lval = (unsigned long)val; |
2230 | } | |
2231 | *lvalp = lval / HZ; | |
2232 | } | |
2233 | return 0; | |
2234 | } | |
2235 | ||
00b7c339 | 2236 | static int do_proc_dointvec_userhz_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4 LT |
2237 | int *valp, |
2238 | int write, void *data) | |
2239 | { | |
2240 | if (write) { | |
cba9f33d BS |
2241 | if (USER_HZ < HZ && *lvalp > (LONG_MAX / HZ) * USER_HZ) |
2242 | return 1; | |
1da177e4 LT |
2243 | *valp = clock_t_to_jiffies(*negp ? -*lvalp : *lvalp); |
2244 | } else { | |
2245 | int val = *valp; | |
2246 | unsigned long lval; | |
2247 | if (val < 0) { | |
00b7c339 | 2248 | *negp = true; |
1da177e4 LT |
2249 | lval = (unsigned long)-val; |
2250 | } else { | |
00b7c339 | 2251 | *negp = false; |
1da177e4 LT |
2252 | lval = (unsigned long)val; |
2253 | } | |
2254 | *lvalp = jiffies_to_clock_t(lval); | |
2255 | } | |
2256 | return 0; | |
2257 | } | |
2258 | ||
00b7c339 | 2259 | static int do_proc_dointvec_ms_jiffies_conv(bool *negp, unsigned long *lvalp, |
1da177e4 LT |
2260 | int *valp, |
2261 | int write, void *data) | |
2262 | { | |
2263 | if (write) { | |
2264 | *valp = msecs_to_jiffies(*negp ? -*lvalp : *lvalp); | |
2265 | } else { | |
2266 | int val = *valp; | |
2267 | unsigned long lval; | |
2268 | if (val < 0) { | |
00b7c339 | 2269 | *negp = true; |
1da177e4 LT |
2270 | lval = (unsigned long)-val; |
2271 | } else { | |
00b7c339 | 2272 | *negp = false; |
1da177e4 LT |
2273 | lval = (unsigned long)val; |
2274 | } | |
2275 | *lvalp = jiffies_to_msecs(lval); | |
2276 | } | |
2277 | return 0; | |
2278 | } | |
2279 | ||
2280 | /** | |
2281 | * proc_dointvec_jiffies - read a vector of integers as seconds | |
2282 | * @table: the sysctl table | |
2283 | * @write: %TRUE if this is a write to the sysctl file | |
1da177e4 LT |
2284 | * @buffer: the user buffer |
2285 | * @lenp: the size of the user buffer | |
2286 | * @ppos: file position | |
2287 | * | |
2288 | * Reads/writes up to table->maxlen/sizeof(unsigned int) integer | |
2289 | * values from/to the user buffer, treated as an ASCII string. | |
2290 | * The values read are assumed to be in seconds, and are converted into | |
2291 | * jiffies. | |
2292 | * | |
2293 | * Returns 0 on success. | |
2294 | */ | |
8d65af78 | 2295 | int proc_dointvec_jiffies(struct ctl_table *table, int write, |
1da177e4 LT |
2296 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2297 | { | |
8d65af78 | 2298 | return do_proc_dointvec(table,write,buffer,lenp,ppos, |
1da177e4 LT |
2299 | do_proc_dointvec_jiffies_conv,NULL); |
2300 | } | |
2301 | ||
2302 | /** | |
2303 | * proc_dointvec_userhz_jiffies - read a vector of integers as 1/USER_HZ seconds | |
2304 | * @table: the sysctl table | |
2305 | * @write: %TRUE if this is a write to the sysctl file | |
1da177e4 LT |
2306 | * @buffer: the user buffer |
2307 | * @lenp: the size of the user buffer | |
1e5d5331 | 2308 | * @ppos: pointer to the file position |
1da177e4 LT |
2309 | * |
2310 | * Reads/writes up to table->maxlen/sizeof(unsigned int) integer | |
2311 | * values from/to the user buffer, treated as an ASCII string. | |
2312 | * The values read are assumed to be in 1/USER_HZ seconds, and | |
2313 | * are converted into jiffies. | |
2314 | * | |
2315 | * Returns 0 on success. | |
2316 | */ | |
8d65af78 | 2317 | int proc_dointvec_userhz_jiffies(struct ctl_table *table, int write, |
1da177e4 LT |
2318 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2319 | { | |
8d65af78 | 2320 | return do_proc_dointvec(table,write,buffer,lenp,ppos, |
1da177e4 LT |
2321 | do_proc_dointvec_userhz_jiffies_conv,NULL); |
2322 | } | |
2323 | ||
2324 | /** | |
2325 | * proc_dointvec_ms_jiffies - read a vector of integers as 1 milliseconds | |
2326 | * @table: the sysctl table | |
2327 | * @write: %TRUE if this is a write to the sysctl file | |
1da177e4 LT |
2328 | * @buffer: the user buffer |
2329 | * @lenp: the size of the user buffer | |
67be2dd1 MW |
2330 | * @ppos: file position |
2331 | * @ppos: the current position in the file | |
1da177e4 LT |
2332 | * |
2333 | * Reads/writes up to table->maxlen/sizeof(unsigned int) integer | |
2334 | * values from/to the user buffer, treated as an ASCII string. | |
2335 | * The values read are assumed to be in 1/1000 seconds, and | |
2336 | * are converted into jiffies. | |
2337 | * | |
2338 | * Returns 0 on success. | |
2339 | */ | |
8d65af78 | 2340 | int proc_dointvec_ms_jiffies(struct ctl_table *table, int write, |
1da177e4 LT |
2341 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2342 | { | |
8d65af78 | 2343 | return do_proc_dointvec(table, write, buffer, lenp, ppos, |
1da177e4 LT |
2344 | do_proc_dointvec_ms_jiffies_conv, NULL); |
2345 | } | |
2346 | ||
8d65af78 | 2347 | static int proc_do_cad_pid(struct ctl_table *table, int write, |
9ec52099 CLG |
2348 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2349 | { | |
2350 | struct pid *new_pid; | |
2351 | pid_t tmp; | |
2352 | int r; | |
2353 | ||
6c5f3e7b | 2354 | tmp = pid_vnr(cad_pid); |
9ec52099 | 2355 | |
8d65af78 | 2356 | r = __do_proc_dointvec(&tmp, table, write, buffer, |
9ec52099 CLG |
2357 | lenp, ppos, NULL, NULL); |
2358 | if (r || !write) | |
2359 | return r; | |
2360 | ||
2361 | new_pid = find_get_pid(tmp); | |
2362 | if (!new_pid) | |
2363 | return -ESRCH; | |
2364 | ||
2365 | put_pid(xchg(&cad_pid, new_pid)); | |
2366 | return 0; | |
2367 | } | |
2368 | ||
9f977fb7 OP |
2369 | /** |
2370 | * proc_do_large_bitmap - read/write from/to a large bitmap | |
2371 | * @table: the sysctl table | |
2372 | * @write: %TRUE if this is a write to the sysctl file | |
2373 | * @buffer: the user buffer | |
2374 | * @lenp: the size of the user buffer | |
2375 | * @ppos: file position | |
2376 | * | |
2377 | * The bitmap is stored at table->data and the bitmap length (in bits) | |
2378 | * in table->maxlen. | |
2379 | * | |
2380 | * We use a range comma separated format (e.g. 1,3-4,10-10) so that | |
2381 | * large bitmaps may be represented in a compact manner. Writing into | |
2382 | * the file will clear the bitmap then update it with the given input. | |
2383 | * | |
2384 | * Returns 0 on success. | |
2385 | */ | |
2386 | int proc_do_large_bitmap(struct ctl_table *table, int write, | |
2387 | void __user *buffer, size_t *lenp, loff_t *ppos) | |
2388 | { | |
2389 | int err = 0; | |
2390 | bool first = 1; | |
2391 | size_t left = *lenp; | |
2392 | unsigned long bitmap_len = table->maxlen; | |
2393 | unsigned long *bitmap = (unsigned long *) table->data; | |
2394 | unsigned long *tmp_bitmap = NULL; | |
2395 | char tr_a[] = { '-', ',', '\n' }, tr_b[] = { ',', '\n', 0 }, c; | |
2396 | ||
2397 | if (!bitmap_len || !left || (*ppos && !write)) { | |
2398 | *lenp = 0; | |
2399 | return 0; | |
2400 | } | |
2401 | ||
2402 | if (write) { | |
2403 | unsigned long page = 0; | |
2404 | char *kbuf; | |
2405 | ||
2406 | if (left > PAGE_SIZE - 1) | |
2407 | left = PAGE_SIZE - 1; | |
2408 | ||
2409 | page = __get_free_page(GFP_TEMPORARY); | |
2410 | kbuf = (char *) page; | |
2411 | if (!kbuf) | |
2412 | return -ENOMEM; | |
2413 | if (copy_from_user(kbuf, buffer, left)) { | |
2414 | free_page(page); | |
2415 | return -EFAULT; | |
2416 | } | |
2417 | kbuf[left] = 0; | |
2418 | ||
2419 | tmp_bitmap = kzalloc(BITS_TO_LONGS(bitmap_len) * sizeof(unsigned long), | |
2420 | GFP_KERNEL); | |
2421 | if (!tmp_bitmap) { | |
2422 | free_page(page); | |
2423 | return -ENOMEM; | |
2424 | } | |
2425 | proc_skip_char(&kbuf, &left, '\n'); | |
2426 | while (!err && left) { | |
2427 | unsigned long val_a, val_b; | |
2428 | bool neg; | |
2429 | ||
2430 | err = proc_get_long(&kbuf, &left, &val_a, &neg, tr_a, | |
2431 | sizeof(tr_a), &c); | |
2432 | if (err) | |
2433 | break; | |
2434 | if (val_a >= bitmap_len || neg) { | |
2435 | err = -EINVAL; | |
2436 | break; | |
2437 | } | |
2438 | ||
2439 | val_b = val_a; | |
2440 | if (left) { | |
2441 | kbuf++; | |
2442 | left--; | |
2443 | } | |
2444 | ||
2445 | if (c == '-') { | |
2446 | err = proc_get_long(&kbuf, &left, &val_b, | |
2447 | &neg, tr_b, sizeof(tr_b), | |
2448 | &c); | |
2449 | if (err) | |
2450 | break; | |
2451 | if (val_b >= bitmap_len || neg || | |
2452 | val_a > val_b) { | |
2453 | err = -EINVAL; | |
2454 | break; | |
2455 | } | |
2456 | if (left) { | |
2457 | kbuf++; | |
2458 | left--; | |
2459 | } | |
2460 | } | |
2461 | ||
5a04cca6 | 2462 | bitmap_set(tmp_bitmap, val_a, val_b - val_a + 1); |
9f977fb7 OP |
2463 | first = 0; |
2464 | proc_skip_char(&kbuf, &left, '\n'); | |
2465 | } | |
2466 | free_page(page); | |
2467 | } else { | |
2468 | unsigned long bit_a, bit_b = 0; | |
2469 | ||
2470 | while (left) { | |
2471 | bit_a = find_next_bit(bitmap, bitmap_len, bit_b); | |
2472 | if (bit_a >= bitmap_len) | |
2473 | break; | |
2474 | bit_b = find_next_zero_bit(bitmap, bitmap_len, | |
2475 | bit_a + 1) - 1; | |
2476 | ||
2477 | if (!first) { | |
2478 | err = proc_put_char(&buffer, &left, ','); | |
2479 | if (err) | |
2480 | break; | |
2481 | } | |
2482 | err = proc_put_long(&buffer, &left, bit_a, false); | |
2483 | if (err) | |
2484 | break; | |
2485 | if (bit_a != bit_b) { | |
2486 | err = proc_put_char(&buffer, &left, '-'); | |
2487 | if (err) | |
2488 | break; | |
2489 | err = proc_put_long(&buffer, &left, bit_b, false); | |
2490 | if (err) | |
2491 | break; | |
2492 | } | |
2493 | ||
2494 | first = 0; bit_b++; | |
2495 | } | |
2496 | if (!err) | |
2497 | err = proc_put_char(&buffer, &left, '\n'); | |
2498 | } | |
2499 | ||
2500 | if (!err) { | |
2501 | if (write) { | |
2502 | if (*ppos) | |
2503 | bitmap_or(bitmap, bitmap, tmp_bitmap, bitmap_len); | |
2504 | else | |
5a04cca6 | 2505 | bitmap_copy(bitmap, tmp_bitmap, bitmap_len); |
9f977fb7 OP |
2506 | } |
2507 | kfree(tmp_bitmap); | |
2508 | *lenp -= left; | |
2509 | *ppos += *lenp; | |
2510 | return 0; | |
2511 | } else { | |
2512 | kfree(tmp_bitmap); | |
2513 | return err; | |
2514 | } | |
2515 | } | |
2516 | ||
55610500 | 2517 | #else /* CONFIG_PROC_SYSCTL */ |
1da177e4 | 2518 | |
8d65af78 | 2519 | int proc_dostring(struct ctl_table *table, int write, |
1da177e4 LT |
2520 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2521 | { | |
2522 | return -ENOSYS; | |
2523 | } | |
2524 | ||
8d65af78 | 2525 | int proc_dointvec(struct ctl_table *table, int write, |
1da177e4 | 2526 | void __user *buffer, size_t *lenp, loff_t *ppos) |
1da177e4 LT |
2527 | { |
2528 | return -ENOSYS; | |
2529 | } | |
2530 | ||
8d65af78 | 2531 | int proc_dointvec_minmax(struct ctl_table *table, int write, |
1da177e4 LT |
2532 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2533 | { | |
2534 | return -ENOSYS; | |
2535 | } | |
2536 | ||
8d65af78 | 2537 | int proc_dointvec_jiffies(struct ctl_table *table, int write, |
1da177e4 LT |
2538 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2539 | { | |
2540 | return -ENOSYS; | |
2541 | } | |
2542 | ||
8d65af78 | 2543 | int proc_dointvec_userhz_jiffies(struct ctl_table *table, int write, |
1da177e4 LT |
2544 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2545 | { | |
2546 | return -ENOSYS; | |
2547 | } | |
2548 | ||
8d65af78 | 2549 | int proc_dointvec_ms_jiffies(struct ctl_table *table, int write, |
1da177e4 LT |
2550 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2551 | { | |
2552 | return -ENOSYS; | |
2553 | } | |
2554 | ||
8d65af78 | 2555 | int proc_doulongvec_minmax(struct ctl_table *table, int write, |
1da177e4 LT |
2556 | void __user *buffer, size_t *lenp, loff_t *ppos) |
2557 | { | |
2558 | return -ENOSYS; | |
2559 | } | |
2560 | ||
d8217f07 | 2561 | int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int write, |
1da177e4 LT |
2562 | void __user *buffer, |
2563 | size_t *lenp, loff_t *ppos) | |
2564 | { | |
2565 | return -ENOSYS; | |
2566 | } | |
2567 | ||
2568 | ||
55610500 | 2569 | #endif /* CONFIG_PROC_SYSCTL */ |
1da177e4 | 2570 | |
1da177e4 LT |
2571 | /* |
2572 | * No sense putting this after each symbol definition, twice, | |
2573 | * exception granted :-) | |
2574 | */ | |
2575 | EXPORT_SYMBOL(proc_dointvec); | |
2576 | EXPORT_SYMBOL(proc_dointvec_jiffies); | |
2577 | EXPORT_SYMBOL(proc_dointvec_minmax); | |
2578 | EXPORT_SYMBOL(proc_dointvec_userhz_jiffies); | |
2579 | EXPORT_SYMBOL(proc_dointvec_ms_jiffies); | |
2580 | EXPORT_SYMBOL(proc_dostring); | |
2581 | EXPORT_SYMBOL(proc_doulongvec_minmax); | |
2582 | EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax); |