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1da177e4 LT |
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/tty.h> | |
24 | #include <linux/string.h> | |
25 | #include <linux/mman.h> | |
26 | #include <linux/proc_fs.h> | |
27 | #include <linux/ioport.h> | |
28 | #include <linux/config.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/blkdev.h> | |
43 | #include <linux/hugetlb.h> | |
44 | #include <linux/jiffies.h> | |
45 | #include <linux/sysrq.h> | |
46 | #include <linux/vmalloc.h> | |
47 | #include <asm/uaccess.h> | |
48 | #include <asm/pgtable.h> | |
49 | #include <asm/io.h> | |
50 | #include <asm/tlb.h> | |
51 | #include <asm/div64.h> | |
52 | #include "internal.h" | |
53 | ||
54 | #define LOAD_INT(x) ((x) >> FSHIFT) | |
55 | #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100) | |
56 | /* | |
57 | * Warning: stuff below (imported functions) assumes that its output will fit | |
58 | * into one page. For some of those functions it may be wrong. Moreover, we | |
59 | * have a way to deal with that gracefully. Right now I used straightforward | |
60 | * wrappers, but this needs further analysis wrt potential overflows. | |
61 | */ | |
62 | extern int get_hardware_list(char *); | |
63 | extern int get_stram_list(char *); | |
64 | extern int get_chrdev_list(char *); | |
65 | extern int get_filesystem_list(char *); | |
66 | extern int get_exec_domain_list(char *); | |
67 | extern int get_dma_list(char *); | |
68 | extern int get_locks_status (char *, char **, off_t, int); | |
69 | ||
70 | static int proc_calc_metrics(char *page, char **start, off_t off, | |
71 | int count, int *eof, int len) | |
72 | { | |
73 | if (len <= off+count) *eof = 1; | |
74 | *start = page + off; | |
75 | len -= off; | |
76 | if (len>count) len = count; | |
77 | if (len<0) len = 0; | |
78 | return len; | |
79 | } | |
80 | ||
81 | static int loadavg_read_proc(char *page, char **start, off_t off, | |
82 | int count, int *eof, void *data) | |
83 | { | |
84 | int a, b, c; | |
85 | int len; | |
86 | ||
87 | a = avenrun[0] + (FIXED_1/200); | |
88 | b = avenrun[1] + (FIXED_1/200); | |
89 | c = avenrun[2] + (FIXED_1/200); | |
90 | len = sprintf(page,"%d.%02d %d.%02d %d.%02d %ld/%d %d\n", | |
91 | LOAD_INT(a), LOAD_FRAC(a), | |
92 | LOAD_INT(b), LOAD_FRAC(b), | |
93 | LOAD_INT(c), LOAD_FRAC(c), | |
94 | nr_running(), nr_threads, last_pid); | |
95 | return proc_calc_metrics(page, start, off, count, eof, len); | |
96 | } | |
97 | ||
98 | static int uptime_read_proc(char *page, char **start, off_t off, | |
99 | int count, int *eof, void *data) | |
100 | { | |
101 | struct timespec uptime; | |
102 | struct timespec idle; | |
103 | int len; | |
104 | cputime_t idletime = cputime_add(init_task.utime, init_task.stime); | |
105 | ||
106 | do_posix_clock_monotonic_gettime(&uptime); | |
107 | cputime_to_timespec(idletime, &idle); | |
108 | len = sprintf(page,"%lu.%02lu %lu.%02lu\n", | |
109 | (unsigned long) uptime.tv_sec, | |
110 | (uptime.tv_nsec / (NSEC_PER_SEC / 100)), | |
111 | (unsigned long) idle.tv_sec, | |
112 | (idle.tv_nsec / (NSEC_PER_SEC / 100))); | |
113 | ||
114 | return proc_calc_metrics(page, start, off, count, eof, len); | |
115 | } | |
116 | ||
117 | static int meminfo_read_proc(char *page, char **start, off_t off, | |
118 | int count, int *eof, void *data) | |
119 | { | |
120 | struct sysinfo i; | |
121 | int len; | |
122 | struct page_state ps; | |
123 | unsigned long inactive; | |
124 | unsigned long active; | |
125 | unsigned long free; | |
126 | unsigned long committed; | |
127 | unsigned long allowed; | |
128 | struct vmalloc_info vmi; | |
4c4c402d | 129 | long cached; |
1da177e4 LT |
130 | |
131 | get_page_state(&ps); | |
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 | ||
4c4c402d MH |
144 | cached = get_page_cache_size() - total_swapcache_pages - i.bufferram; |
145 | if (cached < 0) | |
146 | cached = 0; | |
147 | ||
1da177e4 LT |
148 | get_vmalloc_info(&vmi); |
149 | ||
150 | /* | |
151 | * Tagged format, for easy grepping and expansion. | |
152 | */ | |
153 | len = sprintf(page, | |
154 | "MemTotal: %8lu kB\n" | |
155 | "MemFree: %8lu kB\n" | |
156 | "Buffers: %8lu kB\n" | |
157 | "Cached: %8lu kB\n" | |
158 | "SwapCached: %8lu kB\n" | |
159 | "Active: %8lu kB\n" | |
160 | "Inactive: %8lu kB\n" | |
161 | "HighTotal: %8lu kB\n" | |
162 | "HighFree: %8lu kB\n" | |
163 | "LowTotal: %8lu kB\n" | |
164 | "LowFree: %8lu kB\n" | |
165 | "SwapTotal: %8lu kB\n" | |
166 | "SwapFree: %8lu kB\n" | |
167 | "Dirty: %8lu kB\n" | |
168 | "Writeback: %8lu kB\n" | |
169 | "Mapped: %8lu kB\n" | |
170 | "Slab: %8lu kB\n" | |
171 | "CommitLimit: %8lu kB\n" | |
172 | "Committed_AS: %8lu kB\n" | |
173 | "PageTables: %8lu kB\n" | |
174 | "VmallocTotal: %8lu kB\n" | |
175 | "VmallocUsed: %8lu kB\n" | |
176 | "VmallocChunk: %8lu kB\n", | |
177 | K(i.totalram), | |
178 | K(i.freeram), | |
179 | K(i.bufferram), | |
4c4c402d | 180 | K(cached), |
1da177e4 LT |
181 | K(total_swapcache_pages), |
182 | K(active), | |
183 | K(inactive), | |
184 | K(i.totalhigh), | |
185 | K(i.freehigh), | |
186 | K(i.totalram-i.totalhigh), | |
187 | K(i.freeram-i.freehigh), | |
188 | K(i.totalswap), | |
189 | K(i.freeswap), | |
190 | K(ps.nr_dirty), | |
191 | K(ps.nr_writeback), | |
192 | K(ps.nr_mapped), | |
193 | K(ps.nr_slab), | |
194 | K(allowed), | |
195 | K(committed), | |
196 | K(ps.nr_page_table_pages), | |
197 | (unsigned long)VMALLOC_TOTAL >> 10, | |
198 | vmi.used >> 10, | |
199 | vmi.largest_chunk >> 10 | |
200 | ); | |
201 | ||
202 | len += hugetlb_report_meminfo(page + len); | |
203 | ||
204 | return proc_calc_metrics(page, start, off, count, eof, len); | |
205 | #undef K | |
206 | } | |
207 | ||
208 | extern struct seq_operations fragmentation_op; | |
209 | static int fragmentation_open(struct inode *inode, struct file *file) | |
210 | { | |
211 | (void)inode; | |
212 | return seq_open(file, &fragmentation_op); | |
213 | } | |
214 | ||
215 | static struct file_operations fragmentation_file_operations = { | |
216 | .open = fragmentation_open, | |
217 | .read = seq_read, | |
218 | .llseek = seq_lseek, | |
219 | .release = seq_release, | |
220 | }; | |
221 | ||
222 | static int version_read_proc(char *page, char **start, off_t off, | |
223 | int count, int *eof, void *data) | |
224 | { | |
225 | int len; | |
226 | ||
227 | strcpy(page, linux_banner); | |
228 | len = strlen(page); | |
229 | return proc_calc_metrics(page, start, off, count, eof, len); | |
230 | } | |
231 | ||
232 | extern struct seq_operations cpuinfo_op; | |
233 | static int cpuinfo_open(struct inode *inode, struct file *file) | |
234 | { | |
235 | return seq_open(file, &cpuinfo_op); | |
236 | } | |
237 | static struct file_operations proc_cpuinfo_operations = { | |
238 | .open = cpuinfo_open, | |
239 | .read = seq_read, | |
240 | .llseek = seq_lseek, | |
241 | .release = seq_release, | |
242 | }; | |
243 | ||
244 | extern struct seq_operations vmstat_op; | |
245 | static int vmstat_open(struct inode *inode, struct file *file) | |
246 | { | |
247 | return seq_open(file, &vmstat_op); | |
248 | } | |
249 | static struct file_operations proc_vmstat_file_operations = { | |
250 | .open = vmstat_open, | |
251 | .read = seq_read, | |
252 | .llseek = seq_lseek, | |
253 | .release = seq_release, | |
254 | }; | |
255 | ||
256 | #ifdef CONFIG_PROC_HARDWARE | |
257 | static int hardware_read_proc(char *page, char **start, off_t off, | |
258 | int count, int *eof, void *data) | |
259 | { | |
260 | int len = get_hardware_list(page); | |
261 | return proc_calc_metrics(page, start, off, count, eof, len); | |
262 | } | |
263 | #endif | |
264 | ||
265 | #ifdef CONFIG_STRAM_PROC | |
266 | static int stram_read_proc(char *page, char **start, off_t off, | |
267 | int count, int *eof, void *data) | |
268 | { | |
269 | int len = get_stram_list(page); | |
270 | return proc_calc_metrics(page, start, off, count, eof, len); | |
271 | } | |
272 | #endif | |
273 | ||
274 | extern struct seq_operations partitions_op; | |
275 | static int partitions_open(struct inode *inode, struct file *file) | |
276 | { | |
277 | return seq_open(file, &partitions_op); | |
278 | } | |
279 | static struct file_operations proc_partitions_operations = { | |
280 | .open = partitions_open, | |
281 | .read = seq_read, | |
282 | .llseek = seq_lseek, | |
283 | .release = seq_release, | |
284 | }; | |
285 | ||
286 | extern struct seq_operations diskstats_op; | |
287 | static int diskstats_open(struct inode *inode, struct file *file) | |
288 | { | |
289 | return seq_open(file, &diskstats_op); | |
290 | } | |
291 | static struct file_operations proc_diskstats_operations = { | |
292 | .open = diskstats_open, | |
293 | .read = seq_read, | |
294 | .llseek = seq_lseek, | |
295 | .release = seq_release, | |
296 | }; | |
297 | ||
298 | #ifdef CONFIG_MODULES | |
299 | extern struct seq_operations modules_op; | |
300 | static int modules_open(struct inode *inode, struct file *file) | |
301 | { | |
302 | return seq_open(file, &modules_op); | |
303 | } | |
304 | static struct file_operations proc_modules_operations = { | |
305 | .open = modules_open, | |
306 | .read = seq_read, | |
307 | .llseek = seq_lseek, | |
308 | .release = seq_release, | |
309 | }; | |
310 | #endif | |
311 | ||
312 | extern struct seq_operations slabinfo_op; | |
313 | extern ssize_t slabinfo_write(struct file *, const char __user *, size_t, loff_t *); | |
314 | static int slabinfo_open(struct inode *inode, struct file *file) | |
315 | { | |
316 | return seq_open(file, &slabinfo_op); | |
317 | } | |
318 | static struct file_operations proc_slabinfo_operations = { | |
319 | .open = slabinfo_open, | |
320 | .read = seq_read, | |
321 | .write = slabinfo_write, | |
322 | .llseek = seq_lseek, | |
323 | .release = seq_release, | |
324 | }; | |
325 | ||
326 | static int show_stat(struct seq_file *p, void *v) | |
327 | { | |
328 | int i; | |
329 | unsigned long jif; | |
330 | cputime64_t user, nice, system, idle, iowait, irq, softirq, steal; | |
331 | u64 sum = 0; | |
332 | ||
333 | user = nice = system = idle = iowait = | |
334 | irq = softirq = steal = cputime64_zero; | |
335 | jif = - wall_to_monotonic.tv_sec; | |
336 | if (wall_to_monotonic.tv_nsec) | |
337 | --jif; | |
338 | ||
339 | for_each_cpu(i) { | |
340 | int j; | |
341 | ||
342 | user = cputime64_add(user, kstat_cpu(i).cpustat.user); | |
343 | nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice); | |
344 | system = cputime64_add(system, kstat_cpu(i).cpustat.system); | |
345 | idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle); | |
346 | iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait); | |
347 | irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq); | |
348 | softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq); | |
349 | steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal); | |
350 | for (j = 0 ; j < NR_IRQS ; j++) | |
351 | sum += kstat_cpu(i).irqs[j]; | |
352 | } | |
353 | ||
354 | seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu\n", | |
355 | (unsigned long long)cputime64_to_clock_t(user), | |
356 | (unsigned long long)cputime64_to_clock_t(nice), | |
357 | (unsigned long long)cputime64_to_clock_t(system), | |
358 | (unsigned long long)cputime64_to_clock_t(idle), | |
359 | (unsigned long long)cputime64_to_clock_t(iowait), | |
360 | (unsigned long long)cputime64_to_clock_t(irq), | |
361 | (unsigned long long)cputime64_to_clock_t(softirq), | |
362 | (unsigned long long)cputime64_to_clock_t(steal)); | |
363 | for_each_online_cpu(i) { | |
364 | ||
365 | /* Copy values here to work around gcc-2.95.3, gcc-2.96 */ | |
366 | user = kstat_cpu(i).cpustat.user; | |
367 | nice = kstat_cpu(i).cpustat.nice; | |
368 | system = kstat_cpu(i).cpustat.system; | |
369 | idle = kstat_cpu(i).cpustat.idle; | |
370 | iowait = kstat_cpu(i).cpustat.iowait; | |
371 | irq = kstat_cpu(i).cpustat.irq; | |
372 | softirq = kstat_cpu(i).cpustat.softirq; | |
373 | steal = kstat_cpu(i).cpustat.steal; | |
374 | seq_printf(p, "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu\n", | |
375 | i, | |
376 | (unsigned long long)cputime64_to_clock_t(user), | |
377 | (unsigned long long)cputime64_to_clock_t(nice), | |
378 | (unsigned long long)cputime64_to_clock_t(system), | |
379 | (unsigned long long)cputime64_to_clock_t(idle), | |
380 | (unsigned long long)cputime64_to_clock_t(iowait), | |
381 | (unsigned long long)cputime64_to_clock_t(irq), | |
382 | (unsigned long long)cputime64_to_clock_t(softirq), | |
383 | (unsigned long long)cputime64_to_clock_t(steal)); | |
384 | } | |
385 | seq_printf(p, "intr %llu", (unsigned long long)sum); | |
386 | ||
387 | #if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA) | |
388 | for (i = 0; i < NR_IRQS; i++) | |
389 | seq_printf(p, " %u", kstat_irqs(i)); | |
390 | #endif | |
391 | ||
392 | seq_printf(p, | |
393 | "\nctxt %llu\n" | |
394 | "btime %lu\n" | |
395 | "processes %lu\n" | |
396 | "procs_running %lu\n" | |
397 | "procs_blocked %lu\n", | |
398 | nr_context_switches(), | |
399 | (unsigned long)jif, | |
400 | total_forks, | |
401 | nr_running(), | |
402 | nr_iowait()); | |
403 | ||
404 | return 0; | |
405 | } | |
406 | ||
407 | static int stat_open(struct inode *inode, struct file *file) | |
408 | { | |
409 | unsigned size = 4096 * (1 + num_possible_cpus() / 32); | |
410 | char *buf; | |
411 | struct seq_file *m; | |
412 | int res; | |
413 | ||
414 | /* don't ask for more than the kmalloc() max size, currently 128 KB */ | |
415 | if (size > 128 * 1024) | |
416 | size = 128 * 1024; | |
417 | buf = kmalloc(size, GFP_KERNEL); | |
418 | if (!buf) | |
419 | return -ENOMEM; | |
420 | ||
421 | res = single_open(file, show_stat, NULL); | |
422 | if (!res) { | |
423 | m = file->private_data; | |
424 | m->buf = buf; | |
425 | m->size = size; | |
426 | } else | |
427 | kfree(buf); | |
428 | return res; | |
429 | } | |
430 | static struct file_operations proc_stat_operations = { | |
431 | .open = stat_open, | |
432 | .read = seq_read, | |
433 | .llseek = seq_lseek, | |
434 | .release = single_release, | |
435 | }; | |
436 | ||
437 | static int devices_read_proc(char *page, char **start, off_t off, | |
438 | int count, int *eof, void *data) | |
439 | { | |
440 | int len = get_chrdev_list(page); | |
441 | len += get_blkdev_list(page+len); | |
442 | return proc_calc_metrics(page, start, off, count, eof, len); | |
443 | } | |
444 | ||
445 | /* | |
446 | * /proc/interrupts | |
447 | */ | |
448 | static void *int_seq_start(struct seq_file *f, loff_t *pos) | |
449 | { | |
450 | return (*pos <= NR_IRQS) ? pos : NULL; | |
451 | } | |
452 | ||
453 | static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos) | |
454 | { | |
455 | (*pos)++; | |
456 | if (*pos > NR_IRQS) | |
457 | return NULL; | |
458 | return pos; | |
459 | } | |
460 | ||
461 | static void int_seq_stop(struct seq_file *f, void *v) | |
462 | { | |
463 | /* Nothing to do */ | |
464 | } | |
465 | ||
466 | ||
467 | extern int show_interrupts(struct seq_file *f, void *v); /* In arch code */ | |
468 | static struct seq_operations int_seq_ops = { | |
469 | .start = int_seq_start, | |
470 | .next = int_seq_next, | |
471 | .stop = int_seq_stop, | |
472 | .show = show_interrupts | |
473 | }; | |
474 | ||
475 | static int interrupts_open(struct inode *inode, struct file *filp) | |
476 | { | |
477 | return seq_open(filp, &int_seq_ops); | |
478 | } | |
479 | ||
480 | static struct file_operations proc_interrupts_operations = { | |
481 | .open = interrupts_open, | |
482 | .read = seq_read, | |
483 | .llseek = seq_lseek, | |
484 | .release = seq_release, | |
485 | }; | |
486 | ||
487 | static int filesystems_read_proc(char *page, char **start, off_t off, | |
488 | int count, int *eof, void *data) | |
489 | { | |
490 | int len = get_filesystem_list(page); | |
491 | return proc_calc_metrics(page, start, off, count, eof, len); | |
492 | } | |
493 | ||
494 | static int cmdline_read_proc(char *page, char **start, off_t off, | |
495 | int count, int *eof, void *data) | |
496 | { | |
497 | int len; | |
498 | ||
499 | len = sprintf(page, "%s\n", saved_command_line); | |
500 | return proc_calc_metrics(page, start, off, count, eof, len); | |
501 | } | |
502 | ||
503 | static int locks_read_proc(char *page, char **start, off_t off, | |
504 | int count, int *eof, void *data) | |
505 | { | |
506 | int len = get_locks_status(page, start, off, count); | |
507 | ||
508 | if (len < count) | |
509 | *eof = 1; | |
510 | return len; | |
511 | } | |
512 | ||
513 | static int execdomains_read_proc(char *page, char **start, off_t off, | |
514 | int count, int *eof, void *data) | |
515 | { | |
516 | int len = get_exec_domain_list(page); | |
517 | return proc_calc_metrics(page, start, off, count, eof, len); | |
518 | } | |
519 | ||
520 | #ifdef CONFIG_MAGIC_SYSRQ | |
521 | /* | |
522 | * writing 'C' to /proc/sysrq-trigger is like sysrq-C | |
523 | */ | |
524 | static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf, | |
525 | size_t count, loff_t *ppos) | |
526 | { | |
527 | if (count) { | |
528 | char c; | |
529 | ||
530 | if (get_user(c, buf)) | |
531 | return -EFAULT; | |
532 | __handle_sysrq(c, NULL, NULL, 0); | |
533 | } | |
534 | return count; | |
535 | } | |
536 | ||
537 | static struct file_operations proc_sysrq_trigger_operations = { | |
538 | .write = write_sysrq_trigger, | |
539 | }; | |
540 | #endif | |
541 | ||
542 | struct proc_dir_entry *proc_root_kcore; | |
543 | ||
544 | void create_seq_entry(char *name, mode_t mode, struct file_operations *f) | |
545 | { | |
546 | struct proc_dir_entry *entry; | |
547 | entry = create_proc_entry(name, mode, NULL); | |
548 | if (entry) | |
549 | entry->proc_fops = f; | |
550 | } | |
551 | ||
552 | void __init proc_misc_init(void) | |
553 | { | |
554 | struct proc_dir_entry *entry; | |
555 | static struct { | |
556 | char *name; | |
557 | int (*read_proc)(char*,char**,off_t,int,int*,void*); | |
558 | } *p, simple_ones[] = { | |
559 | {"loadavg", loadavg_read_proc}, | |
560 | {"uptime", uptime_read_proc}, | |
561 | {"meminfo", meminfo_read_proc}, | |
562 | {"version", version_read_proc}, | |
563 | #ifdef CONFIG_PROC_HARDWARE | |
564 | {"hardware", hardware_read_proc}, | |
565 | #endif | |
566 | #ifdef CONFIG_STRAM_PROC | |
567 | {"stram", stram_read_proc}, | |
568 | #endif | |
569 | {"devices", devices_read_proc}, | |
570 | {"filesystems", filesystems_read_proc}, | |
571 | {"cmdline", cmdline_read_proc}, | |
572 | {"locks", locks_read_proc}, | |
573 | {"execdomains", execdomains_read_proc}, | |
574 | {NULL,} | |
575 | }; | |
576 | for (p = simple_ones; p->name; p++) | |
577 | create_proc_read_entry(p->name, 0, NULL, p->read_proc, NULL); | |
578 | ||
579 | proc_symlink("mounts", NULL, "self/mounts"); | |
580 | ||
581 | /* And now for trickier ones */ | |
582 | entry = create_proc_entry("kmsg", S_IRUSR, &proc_root); | |
583 | if (entry) | |
584 | entry->proc_fops = &proc_kmsg_operations; | |
585 | create_seq_entry("cpuinfo", 0, &proc_cpuinfo_operations); | |
586 | create_seq_entry("partitions", 0, &proc_partitions_operations); | |
587 | create_seq_entry("stat", 0, &proc_stat_operations); | |
588 | create_seq_entry("interrupts", 0, &proc_interrupts_operations); | |
589 | create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations); | |
590 | create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations); | |
591 | create_seq_entry("vmstat",S_IRUGO, &proc_vmstat_file_operations); | |
592 | create_seq_entry("diskstats", 0, &proc_diskstats_operations); | |
593 | #ifdef CONFIG_MODULES | |
594 | create_seq_entry("modules", 0, &proc_modules_operations); | |
595 | #endif | |
596 | #ifdef CONFIG_SCHEDSTATS | |
597 | create_seq_entry("schedstat", 0, &proc_schedstat_operations); | |
598 | #endif | |
599 | #ifdef CONFIG_PROC_KCORE | |
600 | proc_root_kcore = create_proc_entry("kcore", S_IRUSR, NULL); | |
601 | if (proc_root_kcore) { | |
602 | proc_root_kcore->proc_fops = &proc_kcore_operations; | |
603 | proc_root_kcore->size = | |
604 | (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE; | |
605 | } | |
606 | #endif | |
607 | #ifdef CONFIG_MAGIC_SYSRQ | |
608 | entry = create_proc_entry("sysrq-trigger", S_IWUSR, NULL); | |
609 | if (entry) | |
610 | entry->proc_fops = &proc_sysrq_trigger_operations; | |
611 | #endif | |
612 | #ifdef CONFIG_PPC32 | |
613 | { | |
614 | extern struct file_operations ppc_htab_operations; | |
615 | entry = create_proc_entry("ppc_htab", S_IRUGO|S_IWUSR, NULL); | |
616 | if (entry) | |
617 | entry->proc_fops = &ppc_htab_operations; | |
618 | } | |
619 | #endif | |
620 | } |