[PATCH] fix linux banner format string
[linux-3.10.git] / fs / proc / proc_misc.c
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  */
65 extern int get_hardware_list(char *);
66 extern int get_stram_list(char *);
67 extern int get_filesystem_list(char *);
68 extern int get_exec_domain_list(char *);
69 extern int get_dma_list(char *);
70 extern int get_locks_status (char *, char **, off_t, int);
71
72 static 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
83 static 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
100 static 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
119 static 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 inactive;
125         unsigned long active;
126         unsigned long free;
127         unsigned long committed;
128         unsigned long allowed;
129         struct vmalloc_info vmi;
130         long cached;
131
132         get_zone_counts(&active, &inactive, &free);
133
134 /*
135  * display in kilobytes.
136  */
137 #define K(x) ((x) << (PAGE_SHIFT - 10))
138         si_meminfo(&i);
139         si_swapinfo(&i);
140         committed = atomic_read(&vm_committed_space);
141         allowed = ((totalram_pages - hugetlb_total_pages())
142                 * sysctl_overcommit_ratio / 100) + total_swap_pages;
143
144         cached = global_page_state(NR_FILE_PAGES) -
145                         total_swapcache_pages - i.bufferram;
146         if (cached < 0)
147                 cached = 0;
148
149         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 #ifdef CONFIG_HIGHMEM
163                 "HighTotal:    %8lu kB\n"
164                 "HighFree:     %8lu kB\n"
165                 "LowTotal:     %8lu kB\n"
166                 "LowFree:      %8lu kB\n"
167 #endif
168                 "SwapTotal:    %8lu kB\n"
169                 "SwapFree:     %8lu kB\n"
170                 "Dirty:        %8lu kB\n"
171                 "Writeback:    %8lu kB\n"
172                 "AnonPages:    %8lu kB\n"
173                 "Mapped:       %8lu kB\n"
174                 "Slab:         %8lu kB\n"
175                 "SReclaimable: %8lu kB\n"
176                 "SUnreclaim:   %8lu kB\n"
177                 "PageTables:   %8lu kB\n"
178                 "NFS_Unstable: %8lu kB\n"
179                 "Bounce:       %8lu kB\n"
180                 "CommitLimit:  %8lu kB\n"
181                 "Committed_AS: %8lu kB\n"
182                 "VmallocTotal: %8lu kB\n"
183                 "VmallocUsed:  %8lu kB\n"
184                 "VmallocChunk: %8lu kB\n",
185                 K(i.totalram),
186                 K(i.freeram),
187                 K(i.bufferram),
188                 K(cached),
189                 K(total_swapcache_pages),
190                 K(active),
191                 K(inactive),
192 #ifdef CONFIG_HIGHMEM
193                 K(i.totalhigh),
194                 K(i.freehigh),
195                 K(i.totalram-i.totalhigh),
196                 K(i.freeram-i.freehigh),
197 #endif
198                 K(i.totalswap),
199                 K(i.freeswap),
200                 K(global_page_state(NR_FILE_DIRTY)),
201                 K(global_page_state(NR_WRITEBACK)),
202                 K(global_page_state(NR_ANON_PAGES)),
203                 K(global_page_state(NR_FILE_MAPPED)),
204                 K(global_page_state(NR_SLAB_RECLAIMABLE) +
205                                 global_page_state(NR_SLAB_UNRECLAIMABLE)),
206                 K(global_page_state(NR_SLAB_RECLAIMABLE)),
207                 K(global_page_state(NR_SLAB_UNRECLAIMABLE)),
208                 K(global_page_state(NR_PAGETABLE)),
209                 K(global_page_state(NR_UNSTABLE_NFS)),
210                 K(global_page_state(NR_BOUNCE)),
211                 K(allowed),
212                 K(committed),
213                 (unsigned long)VMALLOC_TOTAL >> 10,
214                 vmi.used >> 10,
215                 vmi.largest_chunk >> 10
216                 );
217
218                 len += hugetlb_report_meminfo(page + len);
219
220         return proc_calc_metrics(page, start, off, count, eof, len);
221 #undef K
222 }
223
224 extern struct seq_operations fragmentation_op;
225 static int fragmentation_open(struct inode *inode, struct file *file)
226 {
227         (void)inode;
228         return seq_open(file, &fragmentation_op);
229 }
230
231 static struct file_operations fragmentation_file_operations = {
232         .open           = fragmentation_open,
233         .read           = seq_read,
234         .llseek         = seq_lseek,
235         .release        = seq_release,
236 };
237
238 extern struct seq_operations zoneinfo_op;
239 static int zoneinfo_open(struct inode *inode, struct file *file)
240 {
241         return seq_open(file, &zoneinfo_op);
242 }
243
244 static struct file_operations proc_zoneinfo_file_operations = {
245         .open           = zoneinfo_open,
246         .read           = seq_read,
247         .llseek         = seq_lseek,
248         .release        = seq_release,
249 };
250
251 static int version_read_proc(char *page, char **start, off_t off,
252                                  int count, int *eof, void *data)
253 {
254         int len;
255
256         len = snprintf(page, PAGE_SIZE, linux_proc_banner,
257                 utsname()->sysname,
258                 utsname()->release,
259                 utsname()->version);
260         return proc_calc_metrics(page, start, off, count, eof, len);
261 }
262
263 extern struct seq_operations cpuinfo_op;
264 static int cpuinfo_open(struct inode *inode, struct file *file)
265 {
266         return seq_open(file, &cpuinfo_op);
267 }
268
269 static struct file_operations proc_cpuinfo_operations = {
270         .open           = cpuinfo_open,
271         .read           = seq_read,
272         .llseek         = seq_lseek,
273         .release        = seq_release,
274 };
275
276 static int devinfo_show(struct seq_file *f, void *v)
277 {
278         int i = *(loff_t *) v;
279
280         if (i < CHRDEV_MAJOR_HASH_SIZE) {
281                 if (i == 0)
282                         seq_printf(f, "Character devices:\n");
283                 chrdev_show(f, i);
284         }
285 #ifdef CONFIG_BLOCK
286         else {
287                 i -= CHRDEV_MAJOR_HASH_SIZE;
288                 if (i == 0)
289                         seq_printf(f, "\nBlock devices:\n");
290                 blkdev_show(f, i);
291         }
292 #endif
293         return 0;
294 }
295
296 static void *devinfo_start(struct seq_file *f, loff_t *pos)
297 {
298         if (*pos < (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
299                 return pos;
300         return NULL;
301 }
302
303 static void *devinfo_next(struct seq_file *f, void *v, loff_t *pos)
304 {
305         (*pos)++;
306         if (*pos >= (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
307                 return NULL;
308         return pos;
309 }
310
311 static void devinfo_stop(struct seq_file *f, void *v)
312 {
313         /* Nothing to do */
314 }
315
316 static struct seq_operations devinfo_ops = {
317         .start = devinfo_start,
318         .next  = devinfo_next,
319         .stop  = devinfo_stop,
320         .show  = devinfo_show
321 };
322
323 static int devinfo_open(struct inode *inode, struct file *filp)
324 {
325         return seq_open(filp, &devinfo_ops);
326 }
327
328 static struct file_operations proc_devinfo_operations = {
329         .open           = devinfo_open,
330         .read           = seq_read,
331         .llseek         = seq_lseek,
332         .release        = seq_release,
333 };
334
335 extern struct seq_operations vmstat_op;
336 static int vmstat_open(struct inode *inode, struct file *file)
337 {
338         return seq_open(file, &vmstat_op);
339 }
340 static struct file_operations proc_vmstat_file_operations = {
341         .open           = vmstat_open,
342         .read           = seq_read,
343         .llseek         = seq_lseek,
344         .release        = seq_release,
345 };
346
347 #ifdef CONFIG_PROC_HARDWARE
348 static int hardware_read_proc(char *page, char **start, off_t off,
349                                  int count, int *eof, void *data)
350 {
351         int len = get_hardware_list(page);
352         return proc_calc_metrics(page, start, off, count, eof, len);
353 }
354 #endif
355
356 #ifdef CONFIG_STRAM_PROC
357 static int stram_read_proc(char *page, char **start, off_t off,
358                                  int count, int *eof, void *data)
359 {
360         int len = get_stram_list(page);
361         return proc_calc_metrics(page, start, off, count, eof, len);
362 }
363 #endif
364
365 #ifdef CONFIG_BLOCK
366 extern struct seq_operations partitions_op;
367 static int partitions_open(struct inode *inode, struct file *file)
368 {
369         return seq_open(file, &partitions_op);
370 }
371 static struct file_operations proc_partitions_operations = {
372         .open           = partitions_open,
373         .read           = seq_read,
374         .llseek         = seq_lseek,
375         .release        = seq_release,
376 };
377
378 extern struct seq_operations diskstats_op;
379 static int diskstats_open(struct inode *inode, struct file *file)
380 {
381         return seq_open(file, &diskstats_op);
382 }
383 static struct file_operations proc_diskstats_operations = {
384         .open           = diskstats_open,
385         .read           = seq_read,
386         .llseek         = seq_lseek,
387         .release        = seq_release,
388 };
389 #endif
390
391 #ifdef CONFIG_MODULES
392 extern struct seq_operations modules_op;
393 static int modules_open(struct inode *inode, struct file *file)
394 {
395         return seq_open(file, &modules_op);
396 }
397 static struct file_operations proc_modules_operations = {
398         .open           = modules_open,
399         .read           = seq_read,
400         .llseek         = seq_lseek,
401         .release        = seq_release,
402 };
403 #endif
404
405 #ifdef CONFIG_SLAB
406 extern struct seq_operations slabinfo_op;
407 extern ssize_t slabinfo_write(struct file *, const char __user *, size_t, loff_t *);
408 static int slabinfo_open(struct inode *inode, struct file *file)
409 {
410         return seq_open(file, &slabinfo_op);
411 }
412 static struct file_operations proc_slabinfo_operations = {
413         .open           = slabinfo_open,
414         .read           = seq_read,
415         .write          = slabinfo_write,
416         .llseek         = seq_lseek,
417         .release        = seq_release,
418 };
419
420 #ifdef CONFIG_DEBUG_SLAB_LEAK
421 extern struct seq_operations slabstats_op;
422 static int slabstats_open(struct inode *inode, struct file *file)
423 {
424         unsigned long *n = kzalloc(PAGE_SIZE, GFP_KERNEL);
425         int ret = -ENOMEM;
426         if (n) {
427                 ret = seq_open(file, &slabstats_op);
428                 if (!ret) {
429                         struct seq_file *m = file->private_data;
430                         *n = PAGE_SIZE / (2 * sizeof(unsigned long));
431                         m->private = n;
432                         n = NULL;
433                 }
434                 kfree(n);
435         }
436         return ret;
437 }
438
439 static int slabstats_release(struct inode *inode, struct file *file)
440 {
441         struct seq_file *m = file->private_data;
442         kfree(m->private);
443         return seq_release(inode, file);
444 }
445
446 static struct file_operations proc_slabstats_operations = {
447         .open           = slabstats_open,
448         .read           = seq_read,
449         .llseek         = seq_lseek,
450         .release        = slabstats_release,
451 };
452 #endif
453 #endif
454
455 static int show_stat(struct seq_file *p, void *v)
456 {
457         int i;
458         unsigned long jif;
459         cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
460         u64 sum = 0;
461
462         user = nice = system = idle = iowait =
463                 irq = softirq = steal = cputime64_zero;
464         jif = - wall_to_monotonic.tv_sec;
465         if (wall_to_monotonic.tv_nsec)
466                 --jif;
467
468         for_each_possible_cpu(i) {
469                 int j;
470
471                 user = cputime64_add(user, kstat_cpu(i).cpustat.user);
472                 nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
473                 system = cputime64_add(system, kstat_cpu(i).cpustat.system);
474                 idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle);
475                 iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait);
476                 irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
477                 softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
478                 steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
479                 for (j = 0 ; j < NR_IRQS ; j++)
480                         sum += kstat_cpu(i).irqs[j];
481         }
482
483         seq_printf(p, "cpu  %llu %llu %llu %llu %llu %llu %llu %llu\n",
484                 (unsigned long long)cputime64_to_clock_t(user),
485                 (unsigned long long)cputime64_to_clock_t(nice),
486                 (unsigned long long)cputime64_to_clock_t(system),
487                 (unsigned long long)cputime64_to_clock_t(idle),
488                 (unsigned long long)cputime64_to_clock_t(iowait),
489                 (unsigned long long)cputime64_to_clock_t(irq),
490                 (unsigned long long)cputime64_to_clock_t(softirq),
491                 (unsigned long long)cputime64_to_clock_t(steal));
492         for_each_online_cpu(i) {
493
494                 /* Copy values here to work around gcc-2.95.3, gcc-2.96 */
495                 user = kstat_cpu(i).cpustat.user;
496                 nice = kstat_cpu(i).cpustat.nice;
497                 system = kstat_cpu(i).cpustat.system;
498                 idle = kstat_cpu(i).cpustat.idle;
499                 iowait = kstat_cpu(i).cpustat.iowait;
500                 irq = kstat_cpu(i).cpustat.irq;
501                 softirq = kstat_cpu(i).cpustat.softirq;
502                 steal = kstat_cpu(i).cpustat.steal;
503                 seq_printf(p, "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu\n",
504                         i,
505                         (unsigned long long)cputime64_to_clock_t(user),
506                         (unsigned long long)cputime64_to_clock_t(nice),
507                         (unsigned long long)cputime64_to_clock_t(system),
508                         (unsigned long long)cputime64_to_clock_t(idle),
509                         (unsigned long long)cputime64_to_clock_t(iowait),
510                         (unsigned long long)cputime64_to_clock_t(irq),
511                         (unsigned long long)cputime64_to_clock_t(softirq),
512                         (unsigned long long)cputime64_to_clock_t(steal));
513         }
514         seq_printf(p, "intr %llu", (unsigned long long)sum);
515
516 #if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
517         for (i = 0; i < NR_IRQS; i++)
518                 seq_printf(p, " %u", kstat_irqs(i));
519 #endif
520
521         seq_printf(p,
522                 "\nctxt %llu\n"
523                 "btime %lu\n"
524                 "processes %lu\n"
525                 "procs_running %lu\n"
526                 "procs_blocked %lu\n",
527                 nr_context_switches(),
528                 (unsigned long)jif,
529                 total_forks,
530                 nr_running(),
531                 nr_iowait());
532
533         return 0;
534 }
535
536 static int stat_open(struct inode *inode, struct file *file)
537 {
538         unsigned size = 4096 * (1 + num_possible_cpus() / 32);
539         char *buf;
540         struct seq_file *m;
541         int res;
542
543         /* don't ask for more than the kmalloc() max size, currently 128 KB */
544         if (size > 128 * 1024)
545                 size = 128 * 1024;
546         buf = kmalloc(size, GFP_KERNEL);
547         if (!buf)
548                 return -ENOMEM;
549
550         res = single_open(file, show_stat, NULL);
551         if (!res) {
552                 m = file->private_data;
553                 m->buf = buf;
554                 m->size = size;
555         } else
556                 kfree(buf);
557         return res;
558 }
559 static struct file_operations proc_stat_operations = {
560         .open           = stat_open,
561         .read           = seq_read,
562         .llseek         = seq_lseek,
563         .release        = single_release,
564 };
565
566 /*
567  * /proc/interrupts
568  */
569 static void *int_seq_start(struct seq_file *f, loff_t *pos)
570 {
571         return (*pos <= NR_IRQS) ? pos : NULL;
572 }
573
574 static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
575 {
576         (*pos)++;
577         if (*pos > NR_IRQS)
578                 return NULL;
579         return pos;
580 }
581
582 static void int_seq_stop(struct seq_file *f, void *v)
583 {
584         /* Nothing to do */
585 }
586
587
588 extern int show_interrupts(struct seq_file *f, void *v); /* In arch code */
589 static struct seq_operations int_seq_ops = {
590         .start = int_seq_start,
591         .next  = int_seq_next,
592         .stop  = int_seq_stop,
593         .show  = show_interrupts
594 };
595
596 static int interrupts_open(struct inode *inode, struct file *filp)
597 {
598         return seq_open(filp, &int_seq_ops);
599 }
600
601 static struct file_operations proc_interrupts_operations = {
602         .open           = interrupts_open,
603         .read           = seq_read,
604         .llseek         = seq_lseek,
605         .release        = seq_release,
606 };
607
608 static int filesystems_read_proc(char *page, char **start, off_t off,
609                                  int count, int *eof, void *data)
610 {
611         int len = get_filesystem_list(page);
612         return proc_calc_metrics(page, start, off, count, eof, len);
613 }
614
615 static int cmdline_read_proc(char *page, char **start, off_t off,
616                                  int count, int *eof, void *data)
617 {
618         int len;
619
620         len = sprintf(page, "%s\n", saved_command_line);
621         return proc_calc_metrics(page, start, off, count, eof, len);
622 }
623
624 static int locks_read_proc(char *page, char **start, off_t off,
625                                  int count, int *eof, void *data)
626 {
627         int len = get_locks_status(page, start, off, count);
628
629         if (len < count)
630                 *eof = 1;
631         return len;
632 }
633
634 static int execdomains_read_proc(char *page, char **start, off_t off,
635                                  int count, int *eof, void *data)
636 {
637         int len = get_exec_domain_list(page);
638         return proc_calc_metrics(page, start, off, count, eof, len);
639 }
640
641 #ifdef CONFIG_MAGIC_SYSRQ
642 /*
643  * writing 'C' to /proc/sysrq-trigger is like sysrq-C
644  */
645 static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
646                                    size_t count, loff_t *ppos)
647 {
648         if (count) {
649                 char c;
650
651                 if (get_user(c, buf))
652                         return -EFAULT;
653                 __handle_sysrq(c, NULL, 0);
654         }
655         return count;
656 }
657
658 static struct file_operations proc_sysrq_trigger_operations = {
659         .write          = write_sysrq_trigger,
660 };
661 #endif
662
663 struct proc_dir_entry *proc_root_kcore;
664
665 void create_seq_entry(char *name, mode_t mode, const struct file_operations *f)
666 {
667         struct proc_dir_entry *entry;
668         entry = create_proc_entry(name, mode, NULL);
669         if (entry)
670                 entry->proc_fops = f;
671 }
672
673 void __init proc_misc_init(void)
674 {
675         struct proc_dir_entry *entry;
676         static struct {
677                 char *name;
678                 int (*read_proc)(char*,char**,off_t,int,int*,void*);
679         } *p, simple_ones[] = {
680                 {"loadavg",     loadavg_read_proc},
681                 {"uptime",      uptime_read_proc},
682                 {"meminfo",     meminfo_read_proc},
683                 {"version",     version_read_proc},
684 #ifdef CONFIG_PROC_HARDWARE
685                 {"hardware",    hardware_read_proc},
686 #endif
687 #ifdef CONFIG_STRAM_PROC
688                 {"stram",       stram_read_proc},
689 #endif
690                 {"filesystems", filesystems_read_proc},
691                 {"cmdline",     cmdline_read_proc},
692                 {"locks",       locks_read_proc},
693                 {"execdomains", execdomains_read_proc},
694                 {NULL,}
695         };
696         for (p = simple_ones; p->name; p++)
697                 create_proc_read_entry(p->name, 0, NULL, p->read_proc, NULL);
698
699         proc_symlink("mounts", NULL, "self/mounts");
700
701         /* And now for trickier ones */
702 #ifdef CONFIG_PRINTK
703         entry = create_proc_entry("kmsg", S_IRUSR, &proc_root);
704         if (entry)
705                 entry->proc_fops = &proc_kmsg_operations;
706 #endif
707         create_seq_entry("devices", 0, &proc_devinfo_operations);
708         create_seq_entry("cpuinfo", 0, &proc_cpuinfo_operations);
709 #ifdef CONFIG_BLOCK
710         create_seq_entry("partitions", 0, &proc_partitions_operations);
711 #endif
712         create_seq_entry("stat", 0, &proc_stat_operations);
713         create_seq_entry("interrupts", 0, &proc_interrupts_operations);
714 #ifdef CONFIG_SLAB
715         create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations);
716 #ifdef CONFIG_DEBUG_SLAB_LEAK
717         create_seq_entry("slab_allocators", 0 ,&proc_slabstats_operations);
718 #endif
719 #endif
720         create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
721         create_seq_entry("vmstat",S_IRUGO, &proc_vmstat_file_operations);
722         create_seq_entry("zoneinfo",S_IRUGO, &proc_zoneinfo_file_operations);
723 #ifdef CONFIG_BLOCK
724         create_seq_entry("diskstats", 0, &proc_diskstats_operations);
725 #endif
726 #ifdef CONFIG_MODULES
727         create_seq_entry("modules", 0, &proc_modules_operations);
728 #endif
729 #ifdef CONFIG_SCHEDSTATS
730         create_seq_entry("schedstat", 0, &proc_schedstat_operations);
731 #endif
732 #ifdef CONFIG_PROC_KCORE
733         proc_root_kcore = create_proc_entry("kcore", S_IRUSR, NULL);
734         if (proc_root_kcore) {
735                 proc_root_kcore->proc_fops = &proc_kcore_operations;
736                 proc_root_kcore->size =
737                                 (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
738         }
739 #endif
740 #ifdef CONFIG_PROC_VMCORE
741         proc_vmcore = create_proc_entry("vmcore", S_IRUSR, NULL);
742         if (proc_vmcore)
743                 proc_vmcore->proc_fops = &proc_vmcore_operations;
744 #endif
745 #ifdef CONFIG_MAGIC_SYSRQ
746         entry = create_proc_entry("sysrq-trigger", S_IWUSR, NULL);
747         if (entry)
748                 entry->proc_fops = &proc_sysrq_trigger_operations;
749 #endif
750 }