[PATCH] disable per cpu intr in /proc/stat
[linux-2.6.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/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>
48 #include <linux/crash_dump.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, 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         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;
130         long cached;
131
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
145         cached = get_page_cache_size() - 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                 "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),
181                 K(cached),
182                 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
209 extern struct seq_operations fragmentation_op;
210 static int fragmentation_open(struct inode *inode, struct file *file)
211 {
212         (void)inode;
213         return seq_open(file, &fragmentation_op);
214 }
215
216 static struct file_operations fragmentation_file_operations = {
217         .open           = fragmentation_open,
218         .read           = seq_read,
219         .llseek         = seq_lseek,
220         .release        = seq_release,
221 };
222
223 extern struct seq_operations zoneinfo_op;
224 static int zoneinfo_open(struct inode *inode, struct file *file)
225 {
226         return seq_open(file, &zoneinfo_op);
227 }
228
229 static 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
236 static 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
246 extern struct seq_operations cpuinfo_op;
247 static int cpuinfo_open(struct inode *inode, struct file *file)
248 {
249         return seq_open(file, &cpuinfo_op);
250 }
251
252 enum devinfo_states {
253         CHR_HDR,
254         CHR_LIST,
255         BLK_HDR,
256         BLK_LIST,
257         DEVINFO_DONE
258 };
259
260 struct devinfo_state {
261         void *chrdev;
262         void *blkdev;
263         unsigned int num_records;
264         unsigned int cur_record;
265         enum devinfo_states state;
266 };
267
268 static void *devinfo_start(struct seq_file *f, loff_t *pos)
269 {
270         struct devinfo_state *info = f->private;
271
272         if (*pos) {
273                 if ((info) && (*pos <= info->num_records))
274                         return info;
275                 return NULL;
276         }
277         info = kmalloc(sizeof(*info), GFP_KERNEL);
278         f->private = info;
279         info->chrdev = acquire_chrdev_list();
280         info->blkdev = acquire_blkdev_list();
281         info->state = CHR_HDR;
282         info->num_records = count_chrdev_list();
283         info->num_records += count_blkdev_list();
284         info->num_records += 2; /* Character and Block headers */
285         *pos = 1;
286         info->cur_record = *pos;
287         return info;
288 }
289
290 static void *devinfo_next(struct seq_file *f, void *v, loff_t *pos)
291 {
292         int idummy;
293         char *ndummy;
294         struct devinfo_state *info = f->private;
295
296         switch (info->state) {
297                 case CHR_HDR:
298                         info->state = CHR_LIST;
299                         (*pos)++;
300                         /*fallthrough*/
301                 case CHR_LIST:
302                         if (get_chrdev_info(info->chrdev,&idummy,&ndummy)) {
303                                 /*
304                                  * The character dev list is complete
305                                  */
306                                 info->state = BLK_HDR;
307                         } else {
308                                 info->chrdev = get_next_chrdev(info->chrdev);
309                         }
310                         (*pos)++;
311                         break;
312                 case BLK_HDR:
313                         info->state = BLK_LIST;
314                         (*pos)++;
315                         break;
316                 case BLK_LIST:
317                         if (get_blkdev_info(info->blkdev,&idummy,&ndummy)) {
318                                 /*
319                                  * The block dev list is complete
320                                  */
321                                 info->state = DEVINFO_DONE;
322                         } else {
323                                 info->blkdev = get_next_blkdev(info->blkdev);
324                         }
325                         (*pos)++;
326                         break;
327                 case DEVINFO_DONE:
328                         (*pos)++;
329                         info->cur_record = *pos;
330                         info = NULL;
331                         break;
332                 default:
333                         break;
334         }
335         if (info)
336                 info->cur_record = *pos;
337         return info;
338 }
339
340 static void devinfo_stop(struct seq_file *f, void *v)
341 {
342         struct devinfo_state *info = f->private;
343
344         if (info) {
345                 release_chrdev_list(info->chrdev);
346                 release_blkdev_list(info->blkdev);
347                 f->private = NULL;
348                 kfree(info);
349         }
350 }
351
352 static int devinfo_show(struct seq_file *f, void *arg)
353 {
354         int major;
355         char *name;
356         struct devinfo_state *info = f->private;
357
358         switch(info->state) {
359                 case CHR_HDR:
360                         seq_printf(f,"Character devices:\n");
361                         /* fallthrough */
362                 case CHR_LIST:
363                         if (!get_chrdev_info(info->chrdev,&major,&name))
364                                 seq_printf(f,"%3d %s\n",major,name);
365                         break;
366                 case BLK_HDR:
367                         seq_printf(f,"\nBlock devices:\n");
368                         /* fallthrough */
369                 case BLK_LIST:
370                         if (!get_blkdev_info(info->blkdev,&major,&name))
371                                 seq_printf(f,"%3d %s\n",major,name);
372                         break;
373                 default:
374                         break;
375         }
376
377         return 0;
378 }
379
380 static  struct seq_operations devinfo_op = {
381         .start  = devinfo_start,
382         .next   = devinfo_next,
383         .stop   = devinfo_stop,
384         .show   = devinfo_show,
385 };
386
387 static int devinfo_open(struct inode *inode, struct file *file)
388 {
389         return seq_open(file, &devinfo_op);
390 }
391
392 static struct file_operations proc_devinfo_operations = {
393         .open           = devinfo_open,
394         .read           = seq_read,
395         .llseek         = seq_lseek,
396         .release        = seq_release,
397 };
398
399 static struct file_operations proc_cpuinfo_operations = {
400         .open           = cpuinfo_open,
401         .read           = seq_read,
402         .llseek         = seq_lseek,
403         .release        = seq_release,
404 };
405
406 extern struct seq_operations vmstat_op;
407 static int vmstat_open(struct inode *inode, struct file *file)
408 {
409         return seq_open(file, &vmstat_op);
410 }
411 static struct file_operations proc_vmstat_file_operations = {
412         .open           = vmstat_open,
413         .read           = seq_read,
414         .llseek         = seq_lseek,
415         .release        = seq_release,
416 };
417
418 #ifdef CONFIG_PROC_HARDWARE
419 static int hardware_read_proc(char *page, char **start, off_t off,
420                                  int count, int *eof, void *data)
421 {
422         int len = get_hardware_list(page);
423         return proc_calc_metrics(page, start, off, count, eof, len);
424 }
425 #endif
426
427 #ifdef CONFIG_STRAM_PROC
428 static int stram_read_proc(char *page, char **start, off_t off,
429                                  int count, int *eof, void *data)
430 {
431         int len = get_stram_list(page);
432         return proc_calc_metrics(page, start, off, count, eof, len);
433 }
434 #endif
435
436 extern struct seq_operations partitions_op;
437 static int partitions_open(struct inode *inode, struct file *file)
438 {
439         return seq_open(file, &partitions_op);
440 }
441 static struct file_operations proc_partitions_operations = {
442         .open           = partitions_open,
443         .read           = seq_read,
444         .llseek         = seq_lseek,
445         .release        = seq_release,
446 };
447
448 extern struct seq_operations diskstats_op;
449 static int diskstats_open(struct inode *inode, struct file *file)
450 {
451         return seq_open(file, &diskstats_op);
452 }
453 static struct file_operations proc_diskstats_operations = {
454         .open           = diskstats_open,
455         .read           = seq_read,
456         .llseek         = seq_lseek,
457         .release        = seq_release,
458 };
459
460 #ifdef CONFIG_MODULES
461 extern struct seq_operations modules_op;
462 static int modules_open(struct inode *inode, struct file *file)
463 {
464         return seq_open(file, &modules_op);
465 }
466 static struct file_operations proc_modules_operations = {
467         .open           = modules_open,
468         .read           = seq_read,
469         .llseek         = seq_lseek,
470         .release        = seq_release,
471 };
472 #endif
473
474 #ifdef CONFIG_SLAB
475 extern struct seq_operations slabinfo_op;
476 extern ssize_t slabinfo_write(struct file *, const char __user *, size_t, loff_t *);
477 static int slabinfo_open(struct inode *inode, struct file *file)
478 {
479         return seq_open(file, &slabinfo_op);
480 }
481 static struct file_operations proc_slabinfo_operations = {
482         .open           = slabinfo_open,
483         .read           = seq_read,
484         .write          = slabinfo_write,
485         .llseek         = seq_lseek,
486         .release        = seq_release,
487 };
488 #endif
489
490 static int show_stat(struct seq_file *p, void *v)
491 {
492         int i;
493         unsigned long jif;
494         cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
495         u64 sum = 0;
496
497         user = nice = system = idle = iowait =
498                 irq = softirq = steal = cputime64_zero;
499         jif = - wall_to_monotonic.tv_sec;
500         if (wall_to_monotonic.tv_nsec)
501                 --jif;
502
503         for_each_cpu(i) {
504                 int j;
505
506                 user = cputime64_add(user, kstat_cpu(i).cpustat.user);
507                 nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
508                 system = cputime64_add(system, kstat_cpu(i).cpustat.system);
509                 idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle);
510                 iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait);
511                 irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
512                 softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
513                 steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
514                 for (j = 0 ; j < NR_IRQS ; j++)
515                         sum += kstat_cpu(i).irqs[j];
516         }
517
518         seq_printf(p, "cpu  %llu %llu %llu %llu %llu %llu %llu %llu\n",
519                 (unsigned long long)cputime64_to_clock_t(user),
520                 (unsigned long long)cputime64_to_clock_t(nice),
521                 (unsigned long long)cputime64_to_clock_t(system),
522                 (unsigned long long)cputime64_to_clock_t(idle),
523                 (unsigned long long)cputime64_to_clock_t(iowait),
524                 (unsigned long long)cputime64_to_clock_t(irq),
525                 (unsigned long long)cputime64_to_clock_t(softirq),
526                 (unsigned long long)cputime64_to_clock_t(steal));
527         for_each_online_cpu(i) {
528
529                 /* Copy values here to work around gcc-2.95.3, gcc-2.96 */
530                 user = kstat_cpu(i).cpustat.user;
531                 nice = kstat_cpu(i).cpustat.nice;
532                 system = kstat_cpu(i).cpustat.system;
533                 idle = kstat_cpu(i).cpustat.idle;
534                 iowait = kstat_cpu(i).cpustat.iowait;
535                 irq = kstat_cpu(i).cpustat.irq;
536                 softirq = kstat_cpu(i).cpustat.softirq;
537                 steal = kstat_cpu(i).cpustat.steal;
538                 seq_printf(p, "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu\n",
539                         i,
540                         (unsigned long long)cputime64_to_clock_t(user),
541                         (unsigned long long)cputime64_to_clock_t(nice),
542                         (unsigned long long)cputime64_to_clock_t(system),
543                         (unsigned long long)cputime64_to_clock_t(idle),
544                         (unsigned long long)cputime64_to_clock_t(iowait),
545                         (unsigned long long)cputime64_to_clock_t(irq),
546                         (unsigned long long)cputime64_to_clock_t(softirq),
547                         (unsigned long long)cputime64_to_clock_t(steal));
548         }
549         seq_printf(p, "intr %llu", (unsigned long long)sum);
550
551 #if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
552         for (i = 0; i < NR_IRQS; i++)
553                 seq_printf(p, " %u", kstat_irqs(i));
554 #endif
555
556         seq_printf(p,
557                 "\nctxt %llu\n"
558                 "btime %lu\n"
559                 "processes %lu\n"
560                 "procs_running %lu\n"
561                 "procs_blocked %lu\n",
562                 nr_context_switches(),
563                 (unsigned long)jif,
564                 total_forks,
565                 nr_running(),
566                 nr_iowait());
567
568         return 0;
569 }
570
571 static int stat_open(struct inode *inode, struct file *file)
572 {
573         unsigned size = 4096 * (1 + num_possible_cpus() / 32);
574         char *buf;
575         struct seq_file *m;
576         int res;
577
578         /* don't ask for more than the kmalloc() max size, currently 128 KB */
579         if (size > 128 * 1024)
580                 size = 128 * 1024;
581         buf = kmalloc(size, GFP_KERNEL);
582         if (!buf)
583                 return -ENOMEM;
584
585         res = single_open(file, show_stat, NULL);
586         if (!res) {
587                 m = file->private_data;
588                 m->buf = buf;
589                 m->size = size;
590         } else
591                 kfree(buf);
592         return res;
593 }
594 static struct file_operations proc_stat_operations = {
595         .open           = stat_open,
596         .read           = seq_read,
597         .llseek         = seq_lseek,
598         .release        = single_release,
599 };
600
601 /*
602  * /proc/interrupts
603  */
604 static void *int_seq_start(struct seq_file *f, loff_t *pos)
605 {
606         return (*pos <= NR_IRQS) ? pos : NULL;
607 }
608
609 static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
610 {
611         (*pos)++;
612         if (*pos > NR_IRQS)
613                 return NULL;
614         return pos;
615 }
616
617 static void int_seq_stop(struct seq_file *f, void *v)
618 {
619         /* Nothing to do */
620 }
621
622
623 extern int show_interrupts(struct seq_file *f, void *v); /* In arch code */
624 static struct seq_operations int_seq_ops = {
625         .start = int_seq_start,
626         .next  = int_seq_next,
627         .stop  = int_seq_stop,
628         .show  = show_interrupts
629 };
630
631 static int interrupts_open(struct inode *inode, struct file *filp)
632 {
633         return seq_open(filp, &int_seq_ops);
634 }
635
636 static struct file_operations proc_interrupts_operations = {
637         .open           = interrupts_open,
638         .read           = seq_read,
639         .llseek         = seq_lseek,
640         .release        = seq_release,
641 };
642
643 static int filesystems_read_proc(char *page, char **start, off_t off,
644                                  int count, int *eof, void *data)
645 {
646         int len = get_filesystem_list(page);
647         return proc_calc_metrics(page, start, off, count, eof, len);
648 }
649
650 static int cmdline_read_proc(char *page, char **start, off_t off,
651                                  int count, int *eof, void *data)
652 {
653         int len;
654
655         len = sprintf(page, "%s\n", saved_command_line);
656         return proc_calc_metrics(page, start, off, count, eof, len);
657 }
658
659 static int locks_read_proc(char *page, char **start, off_t off,
660                                  int count, int *eof, void *data)
661 {
662         int len = get_locks_status(page, start, off, count);
663
664         if (len < count)
665                 *eof = 1;
666         return len;
667 }
668
669 static int execdomains_read_proc(char *page, char **start, off_t off,
670                                  int count, int *eof, void *data)
671 {
672         int len = get_exec_domain_list(page);
673         return proc_calc_metrics(page, start, off, count, eof, len);
674 }
675
676 #ifdef CONFIG_MAGIC_SYSRQ
677 /*
678  * writing 'C' to /proc/sysrq-trigger is like sysrq-C
679  */
680 static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
681                                    size_t count, loff_t *ppos)
682 {
683         if (count) {
684                 char c;
685
686                 if (get_user(c, buf))
687                         return -EFAULT;
688                 __handle_sysrq(c, NULL, NULL, 0);
689         }
690         return count;
691 }
692
693 static struct file_operations proc_sysrq_trigger_operations = {
694         .write          = write_sysrq_trigger,
695 };
696 #endif
697
698 struct proc_dir_entry *proc_root_kcore;
699
700 void create_seq_entry(char *name, mode_t mode, struct file_operations *f)
701 {
702         struct proc_dir_entry *entry;
703         entry = create_proc_entry(name, mode, NULL);
704         if (entry)
705                 entry->proc_fops = f;
706 }
707
708 void __init proc_misc_init(void)
709 {
710         struct proc_dir_entry *entry;
711         static struct {
712                 char *name;
713                 int (*read_proc)(char*,char**,off_t,int,int*,void*);
714         } *p, simple_ones[] = {
715                 {"loadavg",     loadavg_read_proc},
716                 {"uptime",      uptime_read_proc},
717                 {"meminfo",     meminfo_read_proc},
718                 {"version",     version_read_proc},
719 #ifdef CONFIG_PROC_HARDWARE
720                 {"hardware",    hardware_read_proc},
721 #endif
722 #ifdef CONFIG_STRAM_PROC
723                 {"stram",       stram_read_proc},
724 #endif
725                 {"filesystems", filesystems_read_proc},
726                 {"cmdline",     cmdline_read_proc},
727                 {"locks",       locks_read_proc},
728                 {"execdomains", execdomains_read_proc},
729                 {NULL,}
730         };
731         for (p = simple_ones; p->name; p++)
732                 create_proc_read_entry(p->name, 0, NULL, p->read_proc, NULL);
733
734         proc_symlink("mounts", NULL, "self/mounts");
735
736         /* And now for trickier ones */
737         entry = create_proc_entry("kmsg", S_IRUSR, &proc_root);
738         if (entry)
739                 entry->proc_fops = &proc_kmsg_operations;
740         create_seq_entry("devices", 0, &proc_devinfo_operations);
741         create_seq_entry("cpuinfo", 0, &proc_cpuinfo_operations);
742         create_seq_entry("partitions", 0, &proc_partitions_operations);
743         create_seq_entry("stat", 0, &proc_stat_operations);
744         create_seq_entry("interrupts", 0, &proc_interrupts_operations);
745 #ifdef CONFIG_SLAB
746         create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations);
747 #endif
748         create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
749         create_seq_entry("vmstat",S_IRUGO, &proc_vmstat_file_operations);
750         create_seq_entry("zoneinfo",S_IRUGO, &proc_zoneinfo_file_operations);
751         create_seq_entry("diskstats", 0, &proc_diskstats_operations);
752 #ifdef CONFIG_MODULES
753         create_seq_entry("modules", 0, &proc_modules_operations);
754 #endif
755 #ifdef CONFIG_SCHEDSTATS
756         create_seq_entry("schedstat", 0, &proc_schedstat_operations);
757 #endif
758 #ifdef CONFIG_PROC_KCORE
759         proc_root_kcore = create_proc_entry("kcore", S_IRUSR, NULL);
760         if (proc_root_kcore) {
761                 proc_root_kcore->proc_fops = &proc_kcore_operations;
762                 proc_root_kcore->size =
763                                 (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
764         }
765 #endif
766 #ifdef CONFIG_PROC_VMCORE
767         proc_vmcore = create_proc_entry("vmcore", S_IRUSR, NULL);
768         if (proc_vmcore)
769                 proc_vmcore->proc_fops = &proc_vmcore_operations;
770 #endif
771 #ifdef CONFIG_MAGIC_SYSRQ
772         entry = create_proc_entry("sysrq-trigger", S_IWUSR, NULL);
773         if (entry)
774                 entry->proc_fops = &proc_sysrq_trigger_operations;
775 #endif
776 }