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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/smp_lock.h>
39#include <linux/seq_file.h>
40#include <linux/times.h>
41#include <linux/profile.h>
42#include <linux/utsname.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>
48#include <linux/crash_dump.h>
49#include <linux/pid_namespace.h>
50#include <asm/uaccess.h>
51#include <asm/pgtable.h>
52#include <asm/io.h>
53#include <asm/tlb.h>
54#include <asm/div64.h>
55#include "internal.h"
56
57#define LOAD_INT(x) ((x) >> FSHIFT)
58#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
59/*
60 * Warning: stuff below (imported functions) assumes that its output will fit
61 * into one page. For some of those functions it may be wrong. Moreover, we
62 * have a way to deal with that gracefully. Right now I used straightforward
63 * wrappers, but this needs further analysis wrt potential overflows.
64 */
65extern int get_hardware_list(char *);
66extern int get_stram_list(char *);
67extern int get_filesystem_list(char *);
68extern int get_exec_domain_list(char *);
69extern int get_dma_list(char *);
70extern int get_locks_status (char *, char **, off_t, int);
71
72static int proc_calc_metrics(char *page, char **start, off_t off,
73 int count, int *eof, int len)
74{
75 if (len <= off+count) *eof = 1;
76 *start = page + off;
77 len -= off;
78 if (len>count) len = count;
79 if (len<0) len = 0;
80 return len;
81}
82
83static int loadavg_read_proc(char *page, char **start, off_t off,
84 int count, int *eof, void *data)
85{
86 int a, b, c;
87 int len;
88
89 a = avenrun[0] + (FIXED_1/200);
90 b = avenrun[1] + (FIXED_1/200);
91 c = avenrun[2] + (FIXED_1/200);
92 len = sprintf(page,"%d.%02d %d.%02d %d.%02d %ld/%d %d\n",
93 LOAD_INT(a), LOAD_FRAC(a),
94 LOAD_INT(b), LOAD_FRAC(b),
95 LOAD_INT(c), LOAD_FRAC(c),
96 nr_running(), nr_threads, current->nsproxy->pid_ns->last_pid);
97 return proc_calc_metrics(page, start, off, count, eof, len);
98}
99
100static int uptime_read_proc(char *page, char **start, off_t off,
101 int count, int *eof, void *data)
102{
103 struct timespec uptime;
104 struct timespec idle;
105 int len;
106 cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
107
108 do_posix_clock_monotonic_gettime(&uptime);
109 cputime_to_timespec(idletime, &idle);
110 len = sprintf(page,"%lu.%02lu %lu.%02lu\n",
111 (unsigned long) uptime.tv_sec,
112 (uptime.tv_nsec / (NSEC_PER_SEC / 100)),
113 (unsigned long) idle.tv_sec,
114 (idle.tv_nsec / (NSEC_PER_SEC / 100)));
115
116 return proc_calc_metrics(page, start, off, count, eof, len);
117}
118
119static int meminfo_read_proc(char *page, char **start, off_t off,
120 int count, int *eof, void *data)
121{
122 struct sysinfo i;
123 int len;
124 unsigned long committed;
125 unsigned long allowed;
126 struct vmalloc_info vmi;
127 long cached;
128
129/*
130 * display in kilobytes.
131 */
132#define K(x) ((x) << (PAGE_SHIFT - 10))
133 si_meminfo(&i);
134 si_swapinfo(&i);
135 committed = atomic_read(&vm_committed_space);
136 allowed = ((totalram_pages - hugetlb_total_pages())
137 * sysctl_overcommit_ratio / 100) + total_swap_pages;
138
139 cached = global_page_state(NR_FILE_PAGES) -
140 total_swapcache_pages - i.bufferram;
141 if (cached < 0)
142 cached = 0;
143
144 get_vmalloc_info(&vmi);
145
146 /*
147 * Tagged format, for easy grepping and expansion.
148 */
149 len = sprintf(page,
150 "MemTotal: %8lu kB\n"
151 "MemFree: %8lu kB\n"
152 "Buffers: %8lu kB\n"
153 "Cached: %8lu kB\n"
154 "SwapCached: %8lu kB\n"
155 "Active: %8lu kB\n"
156 "Inactive: %8lu kB\n"
157#ifdef CONFIG_HIGHMEM
158 "HighTotal: %8lu kB\n"
159 "HighFree: %8lu kB\n"
160 "LowTotal: %8lu kB\n"
161 "LowFree: %8lu kB\n"
162#endif
163 "SwapTotal: %8lu kB\n"
164 "SwapFree: %8lu kB\n"
165 "Dirty: %8lu kB\n"
166 "Writeback: %8lu kB\n"
167 "AnonPages: %8lu kB\n"
168 "Mapped: %8lu kB\n"
169 "Slab: %8lu kB\n"
170 "SReclaimable: %8lu kB\n"
171 "SUnreclaim: %8lu kB\n"
172 "PageTables: %8lu kB\n"
173 "NFS_Unstable: %8lu kB\n"
174 "Bounce: %8lu kB\n"
175 "CommitLimit: %8lu kB\n"
176 "Committed_AS: %8lu kB\n"
177 "VmallocTotal: %8lu kB\n"
178 "VmallocUsed: %8lu kB\n"
179 "VmallocChunk: %8lu kB\n",
180 K(i.totalram),
181 K(i.freeram),
182 K(i.bufferram),
183 K(cached),
184 K(total_swapcache_pages),
185 K(global_page_state(NR_ACTIVE)),
186 K(global_page_state(NR_INACTIVE)),
187#ifdef CONFIG_HIGHMEM
188 K(i.totalhigh),
189 K(i.freehigh),
190 K(i.totalram-i.totalhigh),
191 K(i.freeram-i.freehigh),
192#endif
193 K(i.totalswap),
194 K(i.freeswap),
195 K(global_page_state(NR_FILE_DIRTY)),
196 K(global_page_state(NR_WRITEBACK)),
197 K(global_page_state(NR_ANON_PAGES)),
198 K(global_page_state(NR_FILE_MAPPED)),
199 K(global_page_state(NR_SLAB_RECLAIMABLE) +
200 global_page_state(NR_SLAB_UNRECLAIMABLE)),
201 K(global_page_state(NR_SLAB_RECLAIMABLE)),
202 K(global_page_state(NR_SLAB_UNRECLAIMABLE)),
203 K(global_page_state(NR_PAGETABLE)),
204 K(global_page_state(NR_UNSTABLE_NFS)),
205 K(global_page_state(NR_BOUNCE)),
206 K(allowed),
207 K(committed),
208 (unsigned long)VMALLOC_TOTAL >> 10,
209 vmi.used >> 10,
210 vmi.largest_chunk >> 10
211 );
212
213 len += hugetlb_report_meminfo(page + len);
214
215 return proc_calc_metrics(page, start, off, count, eof, len);
216#undef K
217}
218
219extern struct seq_operations fragmentation_op;
220static int fragmentation_open(struct inode *inode, struct file *file)
221{
222 (void)inode;
223 return seq_open(file, &fragmentation_op);
224}
225
226static const struct file_operations fragmentation_file_operations = {
227 .open = fragmentation_open,
228 .read = seq_read,
229 .llseek = seq_lseek,
230 .release = seq_release,
231};
232
233extern struct seq_operations zoneinfo_op;
234static int zoneinfo_open(struct inode *inode, struct file *file)
235{
236 return seq_open(file, &zoneinfo_op);
237}
238
239static const struct file_operations proc_zoneinfo_file_operations = {
240 .open = zoneinfo_open,
241 .read = seq_read,
242 .llseek = seq_lseek,
243 .release = seq_release,
244};
245
246static int version_read_proc(char *page, char **start, off_t off,
247 int count, int *eof, void *data)
248{
249 int len;
250
251 len = snprintf(page, PAGE_SIZE, linux_proc_banner,
252 utsname()->sysname,
253 utsname()->release,
254 utsname()->version);
255 return proc_calc_metrics(page, start, off, count, eof, len);
256}
257
258extern struct seq_operations cpuinfo_op;
259static int cpuinfo_open(struct inode *inode, struct file *file)
260{
261 return seq_open(file, &cpuinfo_op);
262}
263
264static const struct file_operations proc_cpuinfo_operations = {
265 .open = cpuinfo_open,
266 .read = seq_read,
267 .llseek = seq_lseek,
268 .release = seq_release,
269};
270
271static int devinfo_show(struct seq_file *f, void *v)
272{
273 int i = *(loff_t *) v;
274
275 if (i < CHRDEV_MAJOR_HASH_SIZE) {
276 if (i == 0)
277 seq_printf(f, "Character devices:\n");
278 chrdev_show(f, i);
279 }
280#ifdef CONFIG_BLOCK
281 else {
282 i -= CHRDEV_MAJOR_HASH_SIZE;
283 if (i == 0)
284 seq_printf(f, "\nBlock devices:\n");
285 blkdev_show(f, i);
286 }
287#endif
288 return 0;
289}
290
291static void *devinfo_start(struct seq_file *f, loff_t *pos)
292{
293 if (*pos < (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
294 return pos;
295 return NULL;
296}
297
298static void *devinfo_next(struct seq_file *f, void *v, loff_t *pos)
299{
300 (*pos)++;
301 if (*pos >= (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
302 return NULL;
303 return pos;
304}
305
306static void devinfo_stop(struct seq_file *f, void *v)
307{
308 /* Nothing to do */
309}
310
311static struct seq_operations devinfo_ops = {
312 .start = devinfo_start,
313 .next = devinfo_next,
314 .stop = devinfo_stop,
315 .show = devinfo_show
316};
317
318static int devinfo_open(struct inode *inode, struct file *filp)
319{
320 return seq_open(filp, &devinfo_ops);
321}
322
323static const struct file_operations proc_devinfo_operations = {
324 .open = devinfo_open,
325 .read = seq_read,
326 .llseek = seq_lseek,
327 .release = seq_release,
328};
329
330extern struct seq_operations vmstat_op;
331static int vmstat_open(struct inode *inode, struct file *file)
332{
333 return seq_open(file, &vmstat_op);
334}
335static const struct file_operations proc_vmstat_file_operations = {
336 .open = vmstat_open,
337 .read = seq_read,
338 .llseek = seq_lseek,
339 .release = seq_release,
340};
341
342#ifdef CONFIG_PROC_HARDWARE
343static int hardware_read_proc(char *page, char **start, off_t off,
344 int count, int *eof, void *data)
345{
346 int len = get_hardware_list(page);
347 return proc_calc_metrics(page, start, off, count, eof, len);
348}
349#endif
350
351#ifdef CONFIG_STRAM_PROC
352static int stram_read_proc(char *page, char **start, off_t off,
353 int count, int *eof, void *data)
354{
355 int len = get_stram_list(page);
356 return proc_calc_metrics(page, start, off, count, eof, len);
357}
358#endif
359
360#ifdef CONFIG_BLOCK
361extern struct seq_operations partitions_op;
362static int partitions_open(struct inode *inode, struct file *file)
363{
364 return seq_open(file, &partitions_op);
365}
366static const struct file_operations proc_partitions_operations = {
367 .open = partitions_open,
368 .read = seq_read,
369 .llseek = seq_lseek,
370 .release = seq_release,
371};
372
373extern struct seq_operations diskstats_op;
374static int diskstats_open(struct inode *inode, struct file *file)
375{
376 return seq_open(file, &diskstats_op);
377}
378static const struct file_operations proc_diskstats_operations = {
379 .open = diskstats_open,
380 .read = seq_read,
381 .llseek = seq_lseek,
382 .release = seq_release,
383};
384#endif
385
386#ifdef CONFIG_MODULES
387extern struct seq_operations modules_op;
388static int modules_open(struct inode *inode, struct file *file)
389{
390 return seq_open(file, &modules_op);
391}
392static const struct file_operations proc_modules_operations = {
393 .open = modules_open,
394 .read = seq_read,
395 .llseek = seq_lseek,
396 .release = seq_release,
397};
398#endif
399
400#ifdef CONFIG_SLAB
401extern struct seq_operations slabinfo_op;
402extern ssize_t slabinfo_write(struct file *, const char __user *, size_t, loff_t *);
403static int slabinfo_open(struct inode *inode, struct file *file)
404{
405 return seq_open(file, &slabinfo_op);
406}
407static const struct file_operations proc_slabinfo_operations = {
408 .open = slabinfo_open,
409 .read = seq_read,
410 .write = slabinfo_write,
411 .llseek = seq_lseek,
412 .release = seq_release,
413};
414
415#ifdef CONFIG_DEBUG_SLAB_LEAK
416extern struct seq_operations slabstats_op;
417static int slabstats_open(struct inode *inode, struct file *file)
418{
419 unsigned long *n = kzalloc(PAGE_SIZE, GFP_KERNEL);
420 int ret = -ENOMEM;
421 if (n) {
422 ret = seq_open(file, &slabstats_op);
423 if (!ret) {
424 struct seq_file *m = file->private_data;
425 *n = PAGE_SIZE / (2 * sizeof(unsigned long));
426 m->private = n;
427 n = NULL;
428 }
429 kfree(n);
430 }
431 return ret;
432}
433
434static int slabstats_release(struct inode *inode, struct file *file)
435{
436 struct seq_file *m = file->private_data;
437 kfree(m->private);
438 return seq_release(inode, file);
439}
440
441static const struct file_operations proc_slabstats_operations = {
442 .open = slabstats_open,
443 .read = seq_read,
444 .llseek = seq_lseek,
445 .release = slabstats_release,
446};
447#endif
448#endif
449
450static int show_stat(struct seq_file *p, void *v)
451{
452 int i;
453 unsigned long jif;
454 cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
455 u64 sum = 0;
456
457 user = nice = system = idle = iowait =
458 irq = softirq = steal = cputime64_zero;
459 jif = - wall_to_monotonic.tv_sec;
460 if (wall_to_monotonic.tv_nsec)
461 --jif;
462
463 for_each_possible_cpu(i) {
464 int j;
465
466 user = cputime64_add(user, kstat_cpu(i).cpustat.user);
467 nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
468 system = cputime64_add(system, kstat_cpu(i).cpustat.system);
469 idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle);
470 iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait);
471 irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
472 softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
473 steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
474 for (j = 0 ; j < NR_IRQS ; j++)
475 sum += kstat_cpu(i).irqs[j];
476 }
477
478 seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu\n",
479 (unsigned long long)cputime64_to_clock_t(user),
480 (unsigned long long)cputime64_to_clock_t(nice),
481 (unsigned long long)cputime64_to_clock_t(system),
482 (unsigned long long)cputime64_to_clock_t(idle),
483 (unsigned long long)cputime64_to_clock_t(iowait),
484 (unsigned long long)cputime64_to_clock_t(irq),
485 (unsigned long long)cputime64_to_clock_t(softirq),
486 (unsigned long long)cputime64_to_clock_t(steal));
487 for_each_online_cpu(i) {
488
489 /* Copy values here to work around gcc-2.95.3, gcc-2.96 */
490 user = kstat_cpu(i).cpustat.user;
491 nice = kstat_cpu(i).cpustat.nice;
492 system = kstat_cpu(i).cpustat.system;
493 idle = kstat_cpu(i).cpustat.idle;
494 iowait = kstat_cpu(i).cpustat.iowait;
495 irq = kstat_cpu(i).cpustat.irq;
496 softirq = kstat_cpu(i).cpustat.softirq;
497 steal = kstat_cpu(i).cpustat.steal;
498 seq_printf(p, "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu\n",
499 i,
500 (unsigned long long)cputime64_to_clock_t(user),
501 (unsigned long long)cputime64_to_clock_t(nice),
502 (unsigned long long)cputime64_to_clock_t(system),
503 (unsigned long long)cputime64_to_clock_t(idle),
504 (unsigned long long)cputime64_to_clock_t(iowait),
505 (unsigned long long)cputime64_to_clock_t(irq),
506 (unsigned long long)cputime64_to_clock_t(softirq),
507 (unsigned long long)cputime64_to_clock_t(steal));
508 }
509 seq_printf(p, "intr %llu", (unsigned long long)sum);
510
511#if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
512 for (i = 0; i < NR_IRQS; i++)
513 seq_printf(p, " %u", kstat_irqs(i));
514#endif
515
516 seq_printf(p,
517 "\nctxt %llu\n"
518 "btime %lu\n"
519 "processes %lu\n"
520 "procs_running %lu\n"
521 "procs_blocked %lu\n",
522 nr_context_switches(),
523 (unsigned long)jif,
524 total_forks,
525 nr_running(),
526 nr_iowait());
527
528 return 0;
529}
530
531static int stat_open(struct inode *inode, struct file *file)
532{
533 unsigned size = 4096 * (1 + num_possible_cpus() / 32);
534 char *buf;
535 struct seq_file *m;
536 int res;
537
538 /* don't ask for more than the kmalloc() max size, currently 128 KB */
539 if (size > 128 * 1024)
540 size = 128 * 1024;
541 buf = kmalloc(size, GFP_KERNEL);
542 if (!buf)
543 return -ENOMEM;
544
545 res = single_open(file, show_stat, NULL);
546 if (!res) {
547 m = file->private_data;
548 m->buf = buf;
549 m->size = size;
550 } else
551 kfree(buf);
552 return res;
553}
554static const struct file_operations proc_stat_operations = {
555 .open = stat_open,
556 .read = seq_read,
557 .llseek = seq_lseek,
558 .release = single_release,
559};
560
561/*
562 * /proc/interrupts
563 */
564static void *int_seq_start(struct seq_file *f, loff_t *pos)
565{
566 return (*pos <= NR_IRQS) ? pos : NULL;
567}
568
569static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
570{
571 (*pos)++;
572 if (*pos > NR_IRQS)
573 return NULL;
574 return pos;
575}
576
577static void int_seq_stop(struct seq_file *f, void *v)
578{
579 /* Nothing to do */
580}
581
582
583extern int show_interrupts(struct seq_file *f, void *v); /* In arch code */
584static struct seq_operations int_seq_ops = {
585 .start = int_seq_start,
586 .next = int_seq_next,
587 .stop = int_seq_stop,
588 .show = show_interrupts
589};
590
591static int interrupts_open(struct inode *inode, struct file *filp)
592{
593 return seq_open(filp, &int_seq_ops);
594}
595
596static const struct file_operations proc_interrupts_operations = {
597 .open = interrupts_open,
598 .read = seq_read,
599 .llseek = seq_lseek,
600 .release = seq_release,
601};
602
603static int filesystems_read_proc(char *page, char **start, off_t off,
604 int count, int *eof, void *data)
605{
606 int len = get_filesystem_list(page);
607 return proc_calc_metrics(page, start, off, count, eof, len);
608}
609
610static int cmdline_read_proc(char *page, char **start, off_t off,
611 int count, int *eof, void *data)
612{
613 int len;
614
615 len = sprintf(page, "%s\n", saved_command_line);
616 return proc_calc_metrics(page, start, off, count, eof, len);
617}
618
619static int locks_read_proc(char *page, char **start, off_t off,
620 int count, int *eof, void *data)
621{
622 int len = get_locks_status(page, start, off, count);
623
624 if (len < count)
625 *eof = 1;
626 return len;
627}
628
629static int execdomains_read_proc(char *page, char **start, off_t off,
630 int count, int *eof, void *data)
631{
632 int len = get_exec_domain_list(page);
633 return proc_calc_metrics(page, start, off, count, eof, len);
634}
635
636#ifdef CONFIG_MAGIC_SYSRQ
637/*
638 * writing 'C' to /proc/sysrq-trigger is like sysrq-C
639 */
640static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
641 size_t count, loff_t *ppos)
642{
643 if (count) {
644 char c;
645
646 if (get_user(c, buf))
647 return -EFAULT;
648 __handle_sysrq(c, NULL, 0);
649 }
650 return count;
651}
652
653static const struct file_operations proc_sysrq_trigger_operations = {
654 .write = write_sysrq_trigger,
655};
656#endif
657
658struct proc_dir_entry *proc_root_kcore;
659
660void create_seq_entry(char *name, mode_t mode, const struct file_operations *f)
661{
662 struct proc_dir_entry *entry;
663 entry = create_proc_entry(name, mode, NULL);
664 if (entry)
665 entry->proc_fops = f;
666}
667
668void __init proc_misc_init(void)
669{
670 static struct {
671 char *name;
672 int (*read_proc)(char*,char**,off_t,int,int*,void*);
673 } *p, simple_ones[] = {
674 {"loadavg", loadavg_read_proc},
675 {"uptime", uptime_read_proc},
676 {"meminfo", meminfo_read_proc},
677 {"version", version_read_proc},
678#ifdef CONFIG_PROC_HARDWARE
679 {"hardware", hardware_read_proc},
680#endif
681#ifdef CONFIG_STRAM_PROC
682 {"stram", stram_read_proc},
683#endif
684 {"filesystems", filesystems_read_proc},
685 {"cmdline", cmdline_read_proc},
686 {"locks", locks_read_proc},
687 {"execdomains", execdomains_read_proc},
688 {NULL,}
689 };
690 for (p = simple_ones; p->name; p++)
691 create_proc_read_entry(p->name, 0, NULL, p->read_proc, NULL);
692
693 proc_symlink("mounts", NULL, "self/mounts");
694
695 /* And now for trickier ones */
696#ifdef CONFIG_PRINTK
697 {
698 struct proc_dir_entry *entry;
699 entry = create_proc_entry("kmsg", S_IRUSR, &proc_root);
700 if (entry)
701 entry->proc_fops = &proc_kmsg_operations;
702 }
703#endif
704 create_seq_entry("devices", 0, &proc_devinfo_operations);
705 create_seq_entry("cpuinfo", 0, &proc_cpuinfo_operations);
706#ifdef CONFIG_BLOCK
707 create_seq_entry("partitions", 0, &proc_partitions_operations);
708#endif
709 create_seq_entry("stat", 0, &proc_stat_operations);
710 create_seq_entry("interrupts", 0, &proc_interrupts_operations);
711#ifdef CONFIG_SLAB
712 create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations);
713#ifdef CONFIG_DEBUG_SLAB_LEAK
714 create_seq_entry("slab_allocators", 0 ,&proc_slabstats_operations);
715#endif
716#endif
717 create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
718 create_seq_entry("vmstat",S_IRUGO, &proc_vmstat_file_operations);
719 create_seq_entry("zoneinfo",S_IRUGO, &proc_zoneinfo_file_operations);
720#ifdef CONFIG_BLOCK
721 create_seq_entry("diskstats", 0, &proc_diskstats_operations);
722#endif
723#ifdef CONFIG_MODULES
724 create_seq_entry("modules", 0, &proc_modules_operations);
725#endif
726#ifdef CONFIG_SCHEDSTATS
727 create_seq_entry("schedstat", 0, &proc_schedstat_operations);
728#endif
729#ifdef CONFIG_PROC_KCORE
730 proc_root_kcore = create_proc_entry("kcore", S_IRUSR, NULL);
731 if (proc_root_kcore) {
732 proc_root_kcore->proc_fops = &proc_kcore_operations;
733 proc_root_kcore->size =
734 (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
735 }
736#endif
737#ifdef CONFIG_PROC_VMCORE
738 proc_vmcore = create_proc_entry("vmcore", S_IRUSR, NULL);
739 if (proc_vmcore)
740 proc_vmcore->proc_fops = &proc_vmcore_operations;
741#endif
742#ifdef CONFIG_MAGIC_SYSRQ
743 {
744 struct proc_dir_entry *entry;
745 entry = create_proc_entry("sysrq-trigger", S_IWUSR, NULL);
746 if (entry)
747 entry->proc_fops = &proc_sysrq_trigger_operations;
748 }
749#endif
750}