blob: 5c10ea1574251c0e0809e3800d0dc05e144d01c4 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/fs/proc/proc_misc.c
3 *
4 * linux/fs/proc/array.c
5 * Copyright (C) 1992 by Linus Torvalds
6 * based on ideas by Darren Senn
7 *
8 * This used to be the part of array.c. See the rest of history and credits
9 * there. I took this into a separate file and switched the thing to generic
10 * proc_file_inode_operations, leaving in array.c only per-process stuff.
11 * Inumbers allocation made dynamic (via create_proc_entry()). AV, May 1999.
12 *
13 * Changes:
14 * Fulton Green : Encapsulated position metric calculations.
15 * <kernel@FultonGreen.com>
16 */
17
18#include <linux/types.h>
19#include <linux/errno.h>
20#include <linux/time.h>
21#include <linux/kernel.h>
22#include <linux/kernel_stat.h>
Neil Horman7170be52006-01-14 13:20:38 -080023#include <linux/fs.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#include <linux/tty.h>
25#include <linux/string.h>
26#include <linux/mman.h>
27#include <linux/proc_fs.h>
28#include <linux/ioport.h>
29#include <linux/config.h>
30#include <linux/mm.h>
31#include <linux/mmzone.h>
32#include <linux/pagemap.h>
33#include <linux/swap.h>
34#include <linux/slab.h>
35#include <linux/smp.h>
36#include <linux/signal.h>
37#include <linux/module.h>
38#include <linux/init.h>
39#include <linux/smp_lock.h>
40#include <linux/seq_file.h>
41#include <linux/times.h>
42#include <linux/profile.h>
43#include <linux/blkdev.h>
44#include <linux/hugetlb.h>
45#include <linux/jiffies.h>
46#include <linux/sysrq.h>
47#include <linux/vmalloc.h>
Vivek Goyal666bfdd2005-06-25 14:58:21 -070048#include <linux/crash_dump.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070049#include <asm/uaccess.h>
50#include <asm/pgtable.h>
51#include <asm/io.h>
52#include <asm/tlb.h>
53#include <asm/div64.h>
54#include "internal.h"
55
56#define LOAD_INT(x) ((x) >> FSHIFT)
57#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
58/*
59 * Warning: stuff below (imported functions) assumes that its output will fit
60 * into one page. For some of those functions it may be wrong. Moreover, we
61 * have a way to deal with that gracefully. Right now I used straightforward
62 * wrappers, but this needs further analysis wrt potential overflows.
63 */
64extern int get_hardware_list(char *);
65extern int get_stram_list(char *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070066extern int get_filesystem_list(char *);
67extern int get_exec_domain_list(char *);
68extern int get_dma_list(char *);
69extern int get_locks_status (char *, char **, off_t, int);
70
71static int proc_calc_metrics(char *page, char **start, off_t off,
72 int count, int *eof, int len)
73{
74 if (len <= off+count) *eof = 1;
75 *start = page + off;
76 len -= off;
77 if (len>count) len = count;
78 if (len<0) len = 0;
79 return len;
80}
81
82static int loadavg_read_proc(char *page, char **start, off_t off,
83 int count, int *eof, void *data)
84{
85 int a, b, c;
86 int len;
87
88 a = avenrun[0] + (FIXED_1/200);
89 b = avenrun[1] + (FIXED_1/200);
90 c = avenrun[2] + (FIXED_1/200);
91 len = sprintf(page,"%d.%02d %d.%02d %d.%02d %ld/%d %d\n",
92 LOAD_INT(a), LOAD_FRAC(a),
93 LOAD_INT(b), LOAD_FRAC(b),
94 LOAD_INT(c), LOAD_FRAC(c),
95 nr_running(), nr_threads, last_pid);
96 return proc_calc_metrics(page, start, off, count, eof, len);
97}
98
99static int uptime_read_proc(char *page, char **start, off_t off,
100 int count, int *eof, void *data)
101{
102 struct timespec uptime;
103 struct timespec idle;
104 int len;
105 cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
106
107 do_posix_clock_monotonic_gettime(&uptime);
108 cputime_to_timespec(idletime, &idle);
109 len = sprintf(page,"%lu.%02lu %lu.%02lu\n",
110 (unsigned long) uptime.tv_sec,
111 (uptime.tv_nsec / (NSEC_PER_SEC / 100)),
112 (unsigned long) idle.tv_sec,
113 (idle.tv_nsec / (NSEC_PER_SEC / 100)));
114
115 return proc_calc_metrics(page, start, off, count, eof, len);
116}
117
118static int meminfo_read_proc(char *page, char **start, off_t off,
119 int count, int *eof, void *data)
120{
121 struct sysinfo i;
122 int len;
123 struct page_state ps;
124 unsigned long inactive;
125 unsigned long active;
126 unsigned long free;
127 unsigned long committed;
128 unsigned long allowed;
129 struct vmalloc_info vmi;
Martin Hicks4c4c4022005-04-16 15:24:08 -0700130 long cached;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131
132 get_page_state(&ps);
133 get_zone_counts(&active, &inactive, &free);
134
135/*
136 * display in kilobytes.
137 */
138#define K(x) ((x) << (PAGE_SHIFT - 10))
139 si_meminfo(&i);
140 si_swapinfo(&i);
141 committed = atomic_read(&vm_committed_space);
142 allowed = ((totalram_pages - hugetlb_total_pages())
143 * sysctl_overcommit_ratio / 100) + total_swap_pages;
144
Martin Hicks4c4c4022005-04-16 15:24:08 -0700145 cached = get_page_cache_size() - total_swapcache_pages - i.bufferram;
146 if (cached < 0)
147 cached = 0;
148
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 get_vmalloc_info(&vmi);
150
151 /*
152 * Tagged format, for easy grepping and expansion.
153 */
154 len = sprintf(page,
155 "MemTotal: %8lu kB\n"
156 "MemFree: %8lu kB\n"
157 "Buffers: %8lu kB\n"
158 "Cached: %8lu kB\n"
159 "SwapCached: %8lu kB\n"
160 "Active: %8lu kB\n"
161 "Inactive: %8lu kB\n"
162 "HighTotal: %8lu kB\n"
163 "HighFree: %8lu kB\n"
164 "LowTotal: %8lu kB\n"
165 "LowFree: %8lu kB\n"
166 "SwapTotal: %8lu kB\n"
167 "SwapFree: %8lu kB\n"
168 "Dirty: %8lu kB\n"
169 "Writeback: %8lu kB\n"
170 "Mapped: %8lu kB\n"
171 "Slab: %8lu kB\n"
172 "CommitLimit: %8lu kB\n"
173 "Committed_AS: %8lu kB\n"
174 "PageTables: %8lu kB\n"
175 "VmallocTotal: %8lu kB\n"
176 "VmallocUsed: %8lu kB\n"
177 "VmallocChunk: %8lu kB\n",
178 K(i.totalram),
179 K(i.freeram),
180 K(i.bufferram),
Martin Hicks4c4c4022005-04-16 15:24:08 -0700181 K(cached),
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182 K(total_swapcache_pages),
183 K(active),
184 K(inactive),
185 K(i.totalhigh),
186 K(i.freehigh),
187 K(i.totalram-i.totalhigh),
188 K(i.freeram-i.freehigh),
189 K(i.totalswap),
190 K(i.freeswap),
191 K(ps.nr_dirty),
192 K(ps.nr_writeback),
193 K(ps.nr_mapped),
194 K(ps.nr_slab),
195 K(allowed),
196 K(committed),
197 K(ps.nr_page_table_pages),
198 (unsigned long)VMALLOC_TOTAL >> 10,
199 vmi.used >> 10,
200 vmi.largest_chunk >> 10
201 );
202
203 len += hugetlb_report_meminfo(page + len);
204
205 return proc_calc_metrics(page, start, off, count, eof, len);
206#undef K
207}
208
209extern struct seq_operations fragmentation_op;
210static int fragmentation_open(struct inode *inode, struct file *file)
211{
212 (void)inode;
213 return seq_open(file, &fragmentation_op);
214}
215
216static struct file_operations fragmentation_file_operations = {
217 .open = fragmentation_open,
218 .read = seq_read,
219 .llseek = seq_lseek,
220 .release = seq_release,
221};
222
Nikita Danilov295ab932005-06-21 17:14:38 -0700223extern struct seq_operations zoneinfo_op;
224static int zoneinfo_open(struct inode *inode, struct file *file)
225{
226 return seq_open(file, &zoneinfo_op);
227}
228
229static struct file_operations proc_zoneinfo_file_operations = {
230 .open = zoneinfo_open,
231 .read = seq_read,
232 .llseek = seq_lseek,
233 .release = seq_release,
234};
235
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236static int version_read_proc(char *page, char **start, off_t off,
237 int count, int *eof, void *data)
238{
239 int len;
240
241 strcpy(page, linux_banner);
242 len = strlen(page);
243 return proc_calc_metrics(page, start, off, count, eof, len);
244}
245
246extern struct seq_operations cpuinfo_op;
247static int cpuinfo_open(struct inode *inode, struct file *file)
248{
249 return seq_open(file, &cpuinfo_op);
250}
Neil Horman7170be52006-01-14 13:20:38 -0800251
Joe Korty68eef3b2006-03-31 02:30:32 -0800252static struct file_operations proc_cpuinfo_operations = {
253 .open = cpuinfo_open,
Neil Horman7170be52006-01-14 13:20:38 -0800254 .read = seq_read,
255 .llseek = seq_lseek,
256 .release = seq_release,
257};
258
Joe Korty68eef3b2006-03-31 02:30:32 -0800259static int devinfo_show(struct seq_file *f, void *v)
260{
261 int i = *(loff_t *) v;
262
263 if (i < CHRDEV_MAJOR_HASH_SIZE) {
264 if (i == 0)
265 seq_printf(f, "Character devices:\n");
266 chrdev_show(f, i);
267 } else {
268 i -= CHRDEV_MAJOR_HASH_SIZE;
269 if (i == 0)
270 seq_printf(f, "\nBlock devices:\n");
271 blkdev_show(f, i);
272 }
273 return 0;
274}
275
276static void *devinfo_start(struct seq_file *f, loff_t *pos)
277{
278 if (*pos < (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
279 return pos;
280 return NULL;
281}
282
283static void *devinfo_next(struct seq_file *f, void *v, loff_t *pos)
284{
285 (*pos)++;
286 if (*pos >= (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
287 return NULL;
288 return pos;
289}
290
291static void devinfo_stop(struct seq_file *f, void *v)
292{
293 /* Nothing to do */
294}
295
296static struct seq_operations devinfo_ops = {
297 .start = devinfo_start,
298 .next = devinfo_next,
299 .stop = devinfo_stop,
300 .show = devinfo_show
301};
302
303static int devinfo_open(struct inode *inode, struct file *filp)
304{
305 return seq_open(filp, &devinfo_ops);
306}
307
308static struct file_operations proc_devinfo_operations = {
309 .open = devinfo_open,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 .read = seq_read,
311 .llseek = seq_lseek,
312 .release = seq_release,
313};
314
315extern struct seq_operations vmstat_op;
316static int vmstat_open(struct inode *inode, struct file *file)
317{
318 return seq_open(file, &vmstat_op);
319}
320static struct file_operations proc_vmstat_file_operations = {
321 .open = vmstat_open,
322 .read = seq_read,
323 .llseek = seq_lseek,
324 .release = seq_release,
325};
326
327#ifdef CONFIG_PROC_HARDWARE
328static int hardware_read_proc(char *page, char **start, off_t off,
329 int count, int *eof, void *data)
330{
331 int len = get_hardware_list(page);
332 return proc_calc_metrics(page, start, off, count, eof, len);
333}
334#endif
335
336#ifdef CONFIG_STRAM_PROC
337static int stram_read_proc(char *page, char **start, off_t off,
338 int count, int *eof, void *data)
339{
340 int len = get_stram_list(page);
341 return proc_calc_metrics(page, start, off, count, eof, len);
342}
343#endif
344
345extern struct seq_operations partitions_op;
346static int partitions_open(struct inode *inode, struct file *file)
347{
348 return seq_open(file, &partitions_op);
349}
350static struct file_operations proc_partitions_operations = {
351 .open = partitions_open,
352 .read = seq_read,
353 .llseek = seq_lseek,
354 .release = seq_release,
355};
356
357extern struct seq_operations diskstats_op;
358static int diskstats_open(struct inode *inode, struct file *file)
359{
360 return seq_open(file, &diskstats_op);
361}
362static struct file_operations proc_diskstats_operations = {
363 .open = diskstats_open,
364 .read = seq_read,
365 .llseek = seq_lseek,
366 .release = seq_release,
367};
368
369#ifdef CONFIG_MODULES
370extern struct seq_operations modules_op;
371static int modules_open(struct inode *inode, struct file *file)
372{
373 return seq_open(file, &modules_op);
374}
375static struct file_operations proc_modules_operations = {
376 .open = modules_open,
377 .read = seq_read,
378 .llseek = seq_lseek,
379 .release = seq_release,
380};
381#endif
382
Matt Mackall10cef602006-01-08 01:01:45 -0800383#ifdef CONFIG_SLAB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384extern struct seq_operations slabinfo_op;
385extern ssize_t slabinfo_write(struct file *, const char __user *, size_t, loff_t *);
386static int slabinfo_open(struct inode *inode, struct file *file)
387{
388 return seq_open(file, &slabinfo_op);
389}
390static struct file_operations proc_slabinfo_operations = {
391 .open = slabinfo_open,
392 .read = seq_read,
393 .write = slabinfo_write,
394 .llseek = seq_lseek,
395 .release = seq_release,
396};
Al Viro871751e2006-03-25 03:06:39 -0800397
398#ifdef CONFIG_DEBUG_SLAB_LEAK
399extern struct seq_operations slabstats_op;
400static int slabstats_open(struct inode *inode, struct file *file)
401{
402 unsigned long *n = kzalloc(PAGE_SIZE, GFP_KERNEL);
403 int ret = -ENOMEM;
404 if (n) {
405 ret = seq_open(file, &slabstats_op);
406 if (!ret) {
407 struct seq_file *m = file->private_data;
408 *n = PAGE_SIZE / (2 * sizeof(unsigned long));
409 m->private = n;
410 n = NULL;
411 }
412 kfree(n);
413 }
414 return ret;
415}
416
417static int slabstats_release(struct inode *inode, struct file *file)
418{
419 struct seq_file *m = file->private_data;
420 kfree(m->private);
421 return seq_release(inode, file);
422}
423
424static struct file_operations proc_slabstats_operations = {
425 .open = slabstats_open,
426 .read = seq_read,
427 .llseek = seq_lseek,
428 .release = slabstats_release,
429};
430#endif
Matt Mackall10cef602006-01-08 01:01:45 -0800431#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
433static int show_stat(struct seq_file *p, void *v)
434{
435 int i;
436 unsigned long jif;
437 cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
438 u64 sum = 0;
439
440 user = nice = system = idle = iowait =
441 irq = softirq = steal = cputime64_zero;
442 jif = - wall_to_monotonic.tv_sec;
443 if (wall_to_monotonic.tv_nsec)
444 --jif;
445
KAMEZAWA Hiroyuki0a945022006-03-28 01:56:37 -0800446 for_each_possible_cpu(i) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447 int j;
448
449 user = cputime64_add(user, kstat_cpu(i).cpustat.user);
450 nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
451 system = cputime64_add(system, kstat_cpu(i).cpustat.system);
452 idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle);
453 iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait);
454 irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
455 softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
456 steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
457 for (j = 0 ; j < NR_IRQS ; j++)
458 sum += kstat_cpu(i).irqs[j];
459 }
460
461 seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu\n",
462 (unsigned long long)cputime64_to_clock_t(user),
463 (unsigned long long)cputime64_to_clock_t(nice),
464 (unsigned long long)cputime64_to_clock_t(system),
465 (unsigned long long)cputime64_to_clock_t(idle),
466 (unsigned long long)cputime64_to_clock_t(iowait),
467 (unsigned long long)cputime64_to_clock_t(irq),
468 (unsigned long long)cputime64_to_clock_t(softirq),
469 (unsigned long long)cputime64_to_clock_t(steal));
470 for_each_online_cpu(i) {
471
472 /* Copy values here to work around gcc-2.95.3, gcc-2.96 */
473 user = kstat_cpu(i).cpustat.user;
474 nice = kstat_cpu(i).cpustat.nice;
475 system = kstat_cpu(i).cpustat.system;
476 idle = kstat_cpu(i).cpustat.idle;
477 iowait = kstat_cpu(i).cpustat.iowait;
478 irq = kstat_cpu(i).cpustat.irq;
479 softirq = kstat_cpu(i).cpustat.softirq;
480 steal = kstat_cpu(i).cpustat.steal;
481 seq_printf(p, "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu\n",
482 i,
483 (unsigned long long)cputime64_to_clock_t(user),
484 (unsigned long long)cputime64_to_clock_t(nice),
485 (unsigned long long)cputime64_to_clock_t(system),
486 (unsigned long long)cputime64_to_clock_t(idle),
487 (unsigned long long)cputime64_to_clock_t(iowait),
488 (unsigned long long)cputime64_to_clock_t(irq),
489 (unsigned long long)cputime64_to_clock_t(softirq),
490 (unsigned long long)cputime64_to_clock_t(steal));
491 }
492 seq_printf(p, "intr %llu", (unsigned long long)sum);
493
schwab@suse.dea1854612006-02-03 03:04:24 -0800494#if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495 for (i = 0; i < NR_IRQS; i++)
496 seq_printf(p, " %u", kstat_irqs(i));
497#endif
498
499 seq_printf(p,
500 "\nctxt %llu\n"
501 "btime %lu\n"
502 "processes %lu\n"
503 "procs_running %lu\n"
504 "procs_blocked %lu\n",
505 nr_context_switches(),
506 (unsigned long)jif,
507 total_forks,
508 nr_running(),
509 nr_iowait());
510
511 return 0;
512}
513
514static int stat_open(struct inode *inode, struct file *file)
515{
516 unsigned size = 4096 * (1 + num_possible_cpus() / 32);
517 char *buf;
518 struct seq_file *m;
519 int res;
520
521 /* don't ask for more than the kmalloc() max size, currently 128 KB */
522 if (size > 128 * 1024)
523 size = 128 * 1024;
524 buf = kmalloc(size, GFP_KERNEL);
525 if (!buf)
526 return -ENOMEM;
527
528 res = single_open(file, show_stat, NULL);
529 if (!res) {
530 m = file->private_data;
531 m->buf = buf;
532 m->size = size;
533 } else
534 kfree(buf);
535 return res;
536}
537static struct file_operations proc_stat_operations = {
538 .open = stat_open,
539 .read = seq_read,
540 .llseek = seq_lseek,
541 .release = single_release,
542};
543
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544/*
545 * /proc/interrupts
546 */
547static void *int_seq_start(struct seq_file *f, loff_t *pos)
548{
549 return (*pos <= NR_IRQS) ? pos : NULL;
550}
551
552static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
553{
554 (*pos)++;
555 if (*pos > NR_IRQS)
556 return NULL;
557 return pos;
558}
559
560static void int_seq_stop(struct seq_file *f, void *v)
561{
562 /* Nothing to do */
563}
564
565
566extern int show_interrupts(struct seq_file *f, void *v); /* In arch code */
567static struct seq_operations int_seq_ops = {
568 .start = int_seq_start,
569 .next = int_seq_next,
570 .stop = int_seq_stop,
571 .show = show_interrupts
572};
573
574static int interrupts_open(struct inode *inode, struct file *filp)
575{
576 return seq_open(filp, &int_seq_ops);
577}
578
579static struct file_operations proc_interrupts_operations = {
580 .open = interrupts_open,
581 .read = seq_read,
582 .llseek = seq_lseek,
583 .release = seq_release,
584};
585
586static int filesystems_read_proc(char *page, char **start, off_t off,
587 int count, int *eof, void *data)
588{
589 int len = get_filesystem_list(page);
590 return proc_calc_metrics(page, start, off, count, eof, len);
591}
592
593static int cmdline_read_proc(char *page, char **start, off_t off,
594 int count, int *eof, void *data)
595{
596 int len;
597
598 len = sprintf(page, "%s\n", saved_command_line);
599 return proc_calc_metrics(page, start, off, count, eof, len);
600}
601
602static int locks_read_proc(char *page, char **start, off_t off,
603 int count, int *eof, void *data)
604{
605 int len = get_locks_status(page, start, off, count);
606
607 if (len < count)
608 *eof = 1;
609 return len;
610}
611
612static int execdomains_read_proc(char *page, char **start, off_t off,
613 int count, int *eof, void *data)
614{
615 int len = get_exec_domain_list(page);
616 return proc_calc_metrics(page, start, off, count, eof, len);
617}
618
619#ifdef CONFIG_MAGIC_SYSRQ
620/*
621 * writing 'C' to /proc/sysrq-trigger is like sysrq-C
622 */
623static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
624 size_t count, loff_t *ppos)
625{
626 if (count) {
627 char c;
628
629 if (get_user(c, buf))
630 return -EFAULT;
631 __handle_sysrq(c, NULL, NULL, 0);
632 }
633 return count;
634}
635
636static struct file_operations proc_sysrq_trigger_operations = {
637 .write = write_sysrq_trigger,
638};
639#endif
640
641struct proc_dir_entry *proc_root_kcore;
642
Arjan van de Ven99ac48f2006-03-28 01:56:41 -0800643void create_seq_entry(char *name, mode_t mode, const struct file_operations *f)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700644{
645 struct proc_dir_entry *entry;
646 entry = create_proc_entry(name, mode, NULL);
647 if (entry)
648 entry->proc_fops = f;
649}
650
651void __init proc_misc_init(void)
652{
653 struct proc_dir_entry *entry;
654 static struct {
655 char *name;
656 int (*read_proc)(char*,char**,off_t,int,int*,void*);
657 } *p, simple_ones[] = {
658 {"loadavg", loadavg_read_proc},
659 {"uptime", uptime_read_proc},
660 {"meminfo", meminfo_read_proc},
661 {"version", version_read_proc},
662#ifdef CONFIG_PROC_HARDWARE
663 {"hardware", hardware_read_proc},
664#endif
665#ifdef CONFIG_STRAM_PROC
666 {"stram", stram_read_proc},
667#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 {"filesystems", filesystems_read_proc},
669 {"cmdline", cmdline_read_proc},
670 {"locks", locks_read_proc},
671 {"execdomains", execdomains_read_proc},
672 {NULL,}
673 };
674 for (p = simple_ones; p->name; p++)
675 create_proc_read_entry(p->name, 0, NULL, p->read_proc, NULL);
676
677 proc_symlink("mounts", NULL, "self/mounts");
678
679 /* And now for trickier ones */
680 entry = create_proc_entry("kmsg", S_IRUSR, &proc_root);
681 if (entry)
682 entry->proc_fops = &proc_kmsg_operations;
Neil Horman7170be52006-01-14 13:20:38 -0800683 create_seq_entry("devices", 0, &proc_devinfo_operations);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684 create_seq_entry("cpuinfo", 0, &proc_cpuinfo_operations);
685 create_seq_entry("partitions", 0, &proc_partitions_operations);
686 create_seq_entry("stat", 0, &proc_stat_operations);
687 create_seq_entry("interrupts", 0, &proc_interrupts_operations);
Matt Mackall10cef602006-01-08 01:01:45 -0800688#ifdef CONFIG_SLAB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689 create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations);
Al Viro871751e2006-03-25 03:06:39 -0800690#ifdef CONFIG_DEBUG_SLAB_LEAK
691 create_seq_entry("slab_allocators", 0 ,&proc_slabstats_operations);
692#endif
Matt Mackall10cef602006-01-08 01:01:45 -0800693#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694 create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
695 create_seq_entry("vmstat",S_IRUGO, &proc_vmstat_file_operations);
Nikita Danilov295ab932005-06-21 17:14:38 -0700696 create_seq_entry("zoneinfo",S_IRUGO, &proc_zoneinfo_file_operations);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697 create_seq_entry("diskstats", 0, &proc_diskstats_operations);
698#ifdef CONFIG_MODULES
699 create_seq_entry("modules", 0, &proc_modules_operations);
700#endif
701#ifdef CONFIG_SCHEDSTATS
702 create_seq_entry("schedstat", 0, &proc_schedstat_operations);
703#endif
704#ifdef CONFIG_PROC_KCORE
705 proc_root_kcore = create_proc_entry("kcore", S_IRUSR, NULL);
706 if (proc_root_kcore) {
707 proc_root_kcore->proc_fops = &proc_kcore_operations;
708 proc_root_kcore->size =
709 (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
710 }
711#endif
Vivek Goyal666bfdd2005-06-25 14:58:21 -0700712#ifdef CONFIG_PROC_VMCORE
713 proc_vmcore = create_proc_entry("vmcore", S_IRUSR, NULL);
714 if (proc_vmcore)
715 proc_vmcore->proc_fops = &proc_vmcore_operations;
716#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700717#ifdef CONFIG_MAGIC_SYSRQ
718 entry = create_proc_entry("sysrq-trigger", S_IWUSR, NULL);
719 if (entry)
720 entry->proc_fops = &proc_sysrq_trigger_operations;
721#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722}