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rcutorture: Use ARRAY_SIZE macro when appropriate
[linux-2.6/linux-loongson.git] / fs / proc / proc_misc.c
blob5fd49e47f83a7c8a1d20ee07d6d6e13d0df9d6ab
1 /*
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>
23 #include <linux/fs.h>
24 #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/mm.h>
30 #include <linux/mmzone.h>
31 #include <linux/pagemap.h>
32 #include <linux/swap.h>
33 #include <linux/slab.h>
34 #include <linux/smp.h>
35 #include <linux/signal.h>
36 #include <linux/module.h>
37 #include <linux/init.h>
38 #include <linux/seq_file.h>
39 #include <linux/times.h>
40 #include <linux/profile.h>
41 #include <linux/utsname.h>
42 #include <linux/blkdev.h>
43 #include <linux/hugetlb.h>
44 #include <linux/jiffies.h>
45 #include <linux/sysrq.h>
46 #include <linux/vmalloc.h>
47 #include <linux/crash_dump.h>
48 #include <linux/pid_namespace.h>
49 #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 */
64 extern int get_hardware_list(char *);
65 extern int get_stram_list(char *);
66 extern int get_filesystem_list(char *);
67 extern int get_exec_domain_list(char *);
68 extern int get_dma_list(char *);
69 extern int get_locks_status (char *, char **, off_t, int);
70
71 static 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
82 static 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, current->nsproxy->pid_ns->last_pid);
96 return proc_calc_metrics(page, start, off, count, eof, len);
97 }
98
99 static 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
118 static 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 unsigned long committed;
124 unsigned long allowed;
125 struct vmalloc_info vmi;
126 long cached;
127
128 /*
129 * display in kilobytes.
130 */
131 #define K(x) ((x) << (PAGE_SHIFT - 10))
132 si_meminfo(&i);
133 si_swapinfo(&i);
134 committed = atomic_read(&vm_committed_space);
135 allowed = ((totalram_pages - hugetlb_total_pages())
136 * sysctl_overcommit_ratio / 100) + total_swap_pages;
137
138 cached = global_page_state(NR_FILE_PAGES) -
139 total_swapcache_pages - i.bufferram;
140 if (cached < 0)
141 cached = 0;
142
143 get_vmalloc_info(&vmi);
144
145 /*
146 * Tagged format, for easy grepping and expansion.
147 */
148 len = sprintf(page,
149 "MemTotal: %8lu kB\n"
150 "MemFree: %8lu kB\n"
151 "Buffers: %8lu kB\n"
152 "Cached: %8lu kB\n"
153 "SwapCached: %8lu kB\n"
154 "Active: %8lu kB\n"
155 "Inactive: %8lu kB\n"
156 #ifdef CONFIG_HIGHMEM
157 "HighTotal: %8lu kB\n"
158 "HighFree: %8lu kB\n"
159 "LowTotal: %8lu kB\n"
160 "LowFree: %8lu kB\n"
161 #endif
162 "SwapTotal: %8lu kB\n"
163 "SwapFree: %8lu kB\n"
164 "Dirty: %8lu kB\n"
165 "Writeback: %8lu kB\n"
166 "AnonPages: %8lu kB\n"
167 "Mapped: %8lu kB\n"
168 "Slab: %8lu kB\n"
169 "SReclaimable: %8lu kB\n"
170 "SUnreclaim: %8lu kB\n"
171 "PageTables: %8lu kB\n"
172 "NFS_Unstable: %8lu kB\n"
173 "Bounce: %8lu kB\n"
174 "CommitLimit: %8lu kB\n"
175 "Committed_AS: %8lu kB\n"
176 "VmallocTotal: %8lu kB\n"
177 "VmallocUsed: %8lu kB\n"
178 "VmallocChunk: %8lu kB\n",
179 K(i.totalram),
180 K(i.freeram),
181 K(i.bufferram),
182 K(cached),
183 K(total_swapcache_pages),
184 K(global_page_state(NR_ACTIVE)),
185 K(global_page_state(NR_INACTIVE)),
186 #ifdef CONFIG_HIGHMEM
187 K(i.totalhigh),
188 K(i.freehigh),
189 K(i.totalram-i.totalhigh),
190 K(i.freeram-i.freehigh),
191 #endif
192 K(i.totalswap),
193 K(i.freeswap),
194 K(global_page_state(NR_FILE_DIRTY)),
195 K(global_page_state(NR_WRITEBACK)),
196 K(global_page_state(NR_ANON_PAGES)),
197 K(global_page_state(NR_FILE_MAPPED)),
198 K(global_page_state(NR_SLAB_RECLAIMABLE) +
199 global_page_state(NR_SLAB_UNRECLAIMABLE)),
200 K(global_page_state(NR_SLAB_RECLAIMABLE)),
201 K(global_page_state(NR_SLAB_UNRECLAIMABLE)),
202 K(global_page_state(NR_PAGETABLE)),
203 K(global_page_state(NR_UNSTABLE_NFS)),
204 K(global_page_state(NR_BOUNCE)),
205 K(allowed),
206 K(committed),
207 (unsigned long)VMALLOC_TOTAL >> 10,
208 vmi.used >> 10,
209 vmi.largest_chunk >> 10
210 );
211
212 len += hugetlb_report_meminfo(page + len);
213
214 return proc_calc_metrics(page, start, off, count, eof, len);
215 #undef K
216 }
217
218 extern struct seq_operations fragmentation_op;
219 static int fragmentation_open(struct inode *inode, struct file *file)
220 {
221 (void)inode;
222 return seq_open(file, &fragmentation_op);
223 }
224
225 static const struct file_operations fragmentation_file_operations = {
226 .open = fragmentation_open,
227 .read = seq_read,
228 .llseek = seq_lseek,
229 .release = seq_release,
230 };
231
232 extern struct seq_operations zoneinfo_op;
233 static int zoneinfo_open(struct inode *inode, struct file *file)
234 {
235 return seq_open(file, &zoneinfo_op);
236 }
237
238 static const struct file_operations proc_zoneinfo_file_operations = {
239 .open = zoneinfo_open,
240 .read = seq_read,
241 .llseek = seq_lseek,
242 .release = seq_release,
243 };
244
245 static int version_read_proc(char *page, char **start, off_t off,
246 int count, int *eof, void *data)
247 {
248 int len;
249
250 len = snprintf(page, PAGE_SIZE, linux_proc_banner,
251 utsname()->sysname,
252 utsname()->release,
253 utsname()->version);
254 return proc_calc_metrics(page, start, off, count, eof, len);
255 }
256
257 extern struct seq_operations cpuinfo_op;
258 static int cpuinfo_open(struct inode *inode, struct file *file)
259 {
260 return seq_open(file, &cpuinfo_op);
261 }
262
263 static const struct file_operations proc_cpuinfo_operations = {
264 .open = cpuinfo_open,
265 .read = seq_read,
266 .llseek = seq_lseek,
267 .release = seq_release,
268 };
269
270 static int devinfo_show(struct seq_file *f, void *v)
271 {
272 int i = *(loff_t *) v;
273
274 if (i < CHRDEV_MAJOR_HASH_SIZE) {
275 if (i == 0)
276 seq_printf(f, "Character devices:\n");
277 chrdev_show(f, i);
278 }
279 #ifdef CONFIG_BLOCK
280 else {
281 i -= CHRDEV_MAJOR_HASH_SIZE;
282 if (i == 0)
283 seq_printf(f, "\nBlock devices:\n");
284 blkdev_show(f, i);
285 }
286 #endif
287 return 0;
288 }
289
290 static void *devinfo_start(struct seq_file *f, loff_t *pos)
291 {
292 if (*pos < (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
293 return pos;
294 return NULL;
295 }
296
297 static void *devinfo_next(struct seq_file *f, void *v, loff_t *pos)
298 {
299 (*pos)++;
300 if (*pos >= (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
301 return NULL;
302 return pos;
303 }
304
305 static void devinfo_stop(struct seq_file *f, void *v)
306 {
307 /* Nothing to do */
308 }
309
310 static struct seq_operations devinfo_ops = {
311 .start = devinfo_start,
312 .next = devinfo_next,
313 .stop = devinfo_stop,
314 .show = devinfo_show
315 };
316
317 static int devinfo_open(struct inode *inode, struct file *filp)
318 {
319 return seq_open(filp, &devinfo_ops);
320 }
321
322 static const struct file_operations proc_devinfo_operations = {
323 .open = devinfo_open,
324 .read = seq_read,
325 .llseek = seq_lseek,
326 .release = seq_release,
327 };
328
329 extern struct seq_operations vmstat_op;
330 static int vmstat_open(struct inode *inode, struct file *file)
331 {
332 return seq_open(file, &vmstat_op);
333 }
334 static const struct file_operations proc_vmstat_file_operations = {
335 .open = vmstat_open,
336 .read = seq_read,
337 .llseek = seq_lseek,
338 .release = seq_release,
339 };
340
341 #ifdef CONFIG_PROC_HARDWARE
342 static int hardware_read_proc(char *page, char **start, off_t off,
343 int count, int *eof, void *data)
344 {
345 int len = get_hardware_list(page);
346 return proc_calc_metrics(page, start, off, count, eof, len);
347 }
348 #endif
349
350 #ifdef CONFIG_STRAM_PROC
351 static int stram_read_proc(char *page, char **start, off_t off,
352 int count, int *eof, void *data)
353 {
354 int len = get_stram_list(page);
355 return proc_calc_metrics(page, start, off, count, eof, len);
356 }
357 #endif
358
359 #ifdef CONFIG_BLOCK
360 extern struct seq_operations partitions_op;
361 static int partitions_open(struct inode *inode, struct file *file)
362 {
363 return seq_open(file, &partitions_op);
364 }
365 static const struct file_operations proc_partitions_operations = {
366 .open = partitions_open,
367 .read = seq_read,
368 .llseek = seq_lseek,
369 .release = seq_release,
370 };
371
372 extern struct seq_operations diskstats_op;
373 static int diskstats_open(struct inode *inode, struct file *file)
374 {
375 return seq_open(file, &diskstats_op);
376 }
377 static const struct file_operations proc_diskstats_operations = {
378 .open = diskstats_open,
379 .read = seq_read,
380 .llseek = seq_lseek,
381 .release = seq_release,
382 };
383 #endif
384
385 #ifdef CONFIG_MODULES
386 extern struct seq_operations modules_op;
387 static int modules_open(struct inode *inode, struct file *file)
388 {
389 return seq_open(file, &modules_op);
390 }
391 static const struct file_operations proc_modules_operations = {
392 .open = modules_open,
393 .read = seq_read,
394 .llseek = seq_lseek,
395 .release = seq_release,
396 };
397 #endif
398
399 #ifdef CONFIG_SLAB
400 static int slabinfo_open(struct inode *inode, struct file *file)
401 {
402 return seq_open(file, &slabinfo_op);
403 }
404 static const struct file_operations proc_slabinfo_operations = {
405 .open = slabinfo_open,
406 .read = seq_read,
407 .write = slabinfo_write,
408 .llseek = seq_lseek,
409 .release = seq_release,
410 };
411
412 #ifdef CONFIG_DEBUG_SLAB_LEAK
413 extern struct seq_operations slabstats_op;
414 static int slabstats_open(struct inode *inode, struct file *file)
415 {
416 unsigned long *n = kzalloc(PAGE_SIZE, GFP_KERNEL);
417 int ret = -ENOMEM;
418 if (n) {
419 ret = seq_open(file, &slabstats_op);
420 if (!ret) {
421 struct seq_file *m = file->private_data;
422 *n = PAGE_SIZE / (2 * sizeof(unsigned long));
423 m->private = n;
424 n = NULL;
425 }
426 kfree(n);
427 }
428 return ret;
429 }
430
431 static const struct file_operations proc_slabstats_operations = {
432 .open = slabstats_open,
433 .read = seq_read,
434 .llseek = seq_lseek,
435 .release = seq_release_private,
436 };
437 #endif
438 #endif
439
440 static int show_stat(struct seq_file *p, void *v)
441 {
442 int i;
443 unsigned long jif;
444 cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
445 u64 sum = 0;
446
447 user = nice = system = idle = iowait =
448 irq = softirq = steal = cputime64_zero;
449 jif = - wall_to_monotonic.tv_sec;
450 if (wall_to_monotonic.tv_nsec)
451 --jif;
452
453 for_each_possible_cpu(i) {
454 int j;
455
456 user = cputime64_add(user, kstat_cpu(i).cpustat.user);
457 nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
458 system = cputime64_add(system, kstat_cpu(i).cpustat.system);
459 idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle);
460 iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait);
461 irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
462 softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
463 steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
464 for (j = 0 ; j < NR_IRQS ; j++)
465 sum += kstat_cpu(i).irqs[j];
466 }
467
468 seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu\n",
469 (unsigned long long)cputime64_to_clock_t(user),
470 (unsigned long long)cputime64_to_clock_t(nice),
471 (unsigned long long)cputime64_to_clock_t(system),
472 (unsigned long long)cputime64_to_clock_t(idle),
473 (unsigned long long)cputime64_to_clock_t(iowait),
474 (unsigned long long)cputime64_to_clock_t(irq),
475 (unsigned long long)cputime64_to_clock_t(softirq),
476 (unsigned long long)cputime64_to_clock_t(steal));
477 for_each_online_cpu(i) {
478
479 /* Copy values here to work around gcc-2.95.3, gcc-2.96 */
480 user = kstat_cpu(i).cpustat.user;
481 nice = kstat_cpu(i).cpustat.nice;
482 system = kstat_cpu(i).cpustat.system;
483 idle = kstat_cpu(i).cpustat.idle;
484 iowait = kstat_cpu(i).cpustat.iowait;
485 irq = kstat_cpu(i).cpustat.irq;
486 softirq = kstat_cpu(i).cpustat.softirq;
487 steal = kstat_cpu(i).cpustat.steal;
488 seq_printf(p, "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu\n",
489 i,
490 (unsigned long long)cputime64_to_clock_t(user),
491 (unsigned long long)cputime64_to_clock_t(nice),
492 (unsigned long long)cputime64_to_clock_t(system),
493 (unsigned long long)cputime64_to_clock_t(idle),
494 (unsigned long long)cputime64_to_clock_t(iowait),
495 (unsigned long long)cputime64_to_clock_t(irq),
496 (unsigned long long)cputime64_to_clock_t(softirq),
497 (unsigned long long)cputime64_to_clock_t(steal));
498 }
499 seq_printf(p, "intr %llu", (unsigned long long)sum);
500
501 #if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
502 for (i = 0; i < NR_IRQS; i++)
503 seq_printf(p, " %u", kstat_irqs(i));
504 #endif
505
506 seq_printf(p,
507 "\nctxt %llu\n"
508 "btime %lu\n"
509 "processes %lu\n"
510 "procs_running %lu\n"
511 "procs_blocked %lu\n",
512 nr_context_switches(),
513 (unsigned long)jif,
514 total_forks,
515 nr_running(),
516 nr_iowait());
517
518 return 0;
519 }
520
521 static int stat_open(struct inode *inode, struct file *file)
522 {
523 unsigned size = 4096 * (1 + num_possible_cpus() / 32);
524 char *buf;
525 struct seq_file *m;
526 int res;
527
528 /* don't ask for more than the kmalloc() max size, currently 128 KB */
529 if (size > 128 * 1024)
530 size = 128 * 1024;
531 buf = kmalloc(size, GFP_KERNEL);
532 if (!buf)
533 return -ENOMEM;
534
535 res = single_open(file, show_stat, NULL);
536 if (!res) {
537 m = file->private_data;
538 m->buf = buf;
539 m->size = size;
540 } else
541 kfree(buf);
542 return res;
543 }
544 static const struct file_operations proc_stat_operations = {
545 .open = stat_open,
546 .read = seq_read,
547 .llseek = seq_lseek,
548 .release = single_release,
549 };
550
551 /*
552 * /proc/interrupts
553 */
554 static void *int_seq_start(struct seq_file *f, loff_t *pos)
555 {
556 return (*pos <= NR_IRQS) ? pos : NULL;
557 }
558
559 static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
560 {
561 (*pos)++;
562 if (*pos > NR_IRQS)
563 return NULL;
564 return pos;
565 }
566
567 static void int_seq_stop(struct seq_file *f, void *v)
568 {
569 /* Nothing to do */
570 }
571
572
573 extern int show_interrupts(struct seq_file *f, void *v); /* In arch code */
574 static struct seq_operations int_seq_ops = {
575 .start = int_seq_start,
576 .next = int_seq_next,
577 .stop = int_seq_stop,
578 .show = show_interrupts
579 };
580
581 static int interrupts_open(struct inode *inode, struct file *filp)
582 {
583 return seq_open(filp, &int_seq_ops);
584 }
585
586 static const struct file_operations proc_interrupts_operations = {
587 .open = interrupts_open,
588 .read = seq_read,
589 .llseek = seq_lseek,
590 .release = seq_release,
591 };
592
593 static int filesystems_read_proc(char *page, char **start, off_t off,
594 int count, int *eof, void *data)
595 {
596 int len = get_filesystem_list(page);
597 return proc_calc_metrics(page, start, off, count, eof, len);
598 }
599
600 static int cmdline_read_proc(char *page, char **start, off_t off,
601 int count, int *eof, void *data)
602 {
603 int len;
604
605 len = sprintf(page, "%s\n", saved_command_line);
606 return proc_calc_metrics(page, start, off, count, eof, len);
607 }
608
609 static int locks_read_proc(char *page, char **start, off_t off,
610 int count, int *eof, void *data)
611 {
612 int len = get_locks_status(page, start, off, count);
613
614 if (len < count)
615 *eof = 1;
616 return len;
617 }
618
619 static int execdomains_read_proc(char *page, char **start, off_t off,
620 int count, int *eof, void *data)
621 {
622 int len = get_exec_domain_list(page);
623 return proc_calc_metrics(page, start, off, count, eof, len);
624 }
625
626 #ifdef CONFIG_MAGIC_SYSRQ
627 /*
628 * writing 'C' to /proc/sysrq-trigger is like sysrq-C
629 */
630 static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
631 size_t count, loff_t *ppos)
632 {
633 if (count) {
634 char c;
635
636 if (get_user(c, buf))
637 return -EFAULT;
638 __handle_sysrq(c, NULL, 0);
639 }
640 return count;
641 }
642
643 static const struct file_operations proc_sysrq_trigger_operations = {
644 .write = write_sysrq_trigger,
645 };
646 #endif
647
648 struct proc_dir_entry *proc_root_kcore;
649
650 void create_seq_entry(char *name, mode_t mode, const struct file_operations *f)
651 {
652 struct proc_dir_entry *entry;
653 entry = create_proc_entry(name, mode, NULL);
654 if (entry)
655 entry->proc_fops = f;
656 }
657
658 void __init proc_misc_init(void)
659 {
660 static struct {
661 char *name;
662 int (*read_proc)(char*,char**,off_t,int,int*,void*);
663 } *p, simple_ones[] = {
664 {"loadavg", loadavg_read_proc},
665 {"uptime", uptime_read_proc},
666 {"meminfo", meminfo_read_proc},
667 {"version", version_read_proc},
668 #ifdef CONFIG_PROC_HARDWARE
669 {"hardware", hardware_read_proc},
670 #endif
671 #ifdef CONFIG_STRAM_PROC
672 {"stram", stram_read_proc},
673 #endif
674 {"filesystems", filesystems_read_proc},
675 {"cmdline", cmdline_read_proc},
676 {"locks", locks_read_proc},
677 {"execdomains", execdomains_read_proc},
678 {NULL,}
679 };
680 for (p = simple_ones; p->name; p++)
681 create_proc_read_entry(p->name, 0, NULL, p->read_proc, NULL);
682
683 proc_symlink("mounts", NULL, "self/mounts");
684
685 /* And now for trickier ones */
686 #ifdef CONFIG_PRINTK
687 {
688 struct proc_dir_entry *entry;
689 entry = create_proc_entry("kmsg", S_IRUSR, &proc_root);
690 if (entry)
691 entry->proc_fops = &proc_kmsg_operations;
692 }
693 #endif
694 create_seq_entry("devices", 0, &proc_devinfo_operations);
695 create_seq_entry("cpuinfo", 0, &proc_cpuinfo_operations);
696 #ifdef CONFIG_BLOCK
697 create_seq_entry("partitions", 0, &proc_partitions_operations);
698 #endif
699 create_seq_entry("stat", 0, &proc_stat_operations);
700 create_seq_entry("interrupts", 0, &proc_interrupts_operations);
701 #ifdef CONFIG_SLAB
702 create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations);
703 #ifdef CONFIG_DEBUG_SLAB_LEAK
704 create_seq_entry("slab_allocators", 0 ,&proc_slabstats_operations);
705 #endif
706 #endif
707 create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
708 create_seq_entry("vmstat",S_IRUGO, &proc_vmstat_file_operations);
709 create_seq_entry("zoneinfo",S_IRUGO, &proc_zoneinfo_file_operations);
710 #ifdef CONFIG_BLOCK
711 create_seq_entry("diskstats", 0, &proc_diskstats_operations);
712 #endif
713 #ifdef CONFIG_MODULES
714 create_seq_entry("modules", 0, &proc_modules_operations);
715 #endif
716 #ifdef CONFIG_SCHEDSTATS
717 create_seq_entry("schedstat", 0, &proc_schedstat_operations);
718 #endif
719 #ifdef CONFIG_PROC_KCORE
720 proc_root_kcore = create_proc_entry("kcore", S_IRUSR, NULL);
721 if (proc_root_kcore) {
722 proc_root_kcore->proc_fops = &proc_kcore_operations;
723 proc_root_kcore->size =
724 (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
725 }
726 #endif
727 #ifdef CONFIG_PROC_VMCORE
728 proc_vmcore = create_proc_entry("vmcore", S_IRUSR, NULL);
729 if (proc_vmcore)
730 proc_vmcore->proc_fops = &proc_vmcore_operations;
731 #endif
732 #ifdef CONFIG_MAGIC_SYSRQ
733 {
734 struct proc_dir_entry *entry;
735 entry = create_proc_entry("sysrq-trigger", S_IWUSR, NULL);
736 if (entry)
737 entry->proc_fops = &proc_sysrq_trigger_operations;
738 }
739 #endif
740 }
linux kernel for loongson