2 * linux/fs/proc/proc_misc.c
4 * linux/fs/proc/array.c
5 * Copyright (C) 1992 by Linus Torvalds
6 * based on ideas by Darren Senn
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.
14 * Fulton Green : Encapsulated position metric calculations.
15 * <kernel@FultonGreen.com>
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>
24 #include <linux/tty.h>
25 #include <linux/string.h>
26 #include <linux/mman.h>
27 #include <linux/quicklist.h>
28 #include <linux/proc_fs.h>
29 #include <linux/ioport.h>
31 #include <linux/mmzone.h>
32 #include <linux/pagemap.h>
33 #include <linux/irq.h>
34 #include <linux/interrupt.h>
35 #include <linux/swap.h>
36 #include <linux/slab.h>
37 #include <linux/genhd.h>
38 #include <linux/smp.h>
39 #include <linux/signal.h>
40 #include <linux/module.h>
41 #include <linux/init.h>
42 #include <linux/seq_file.h>
43 #include <linux/times.h>
44 #include <linux/profile.h>
45 #include <linux/utsname.h>
46 #include <linux/blkdev.h>
47 #include <linux/hugetlb.h>
48 #include <linux/jiffies.h>
49 #include <linux/sysrq.h>
50 #include <linux/vmalloc.h>
51 #include <linux/crash_dump.h>
52 #include <linux/pid_namespace.h>
53 #include <linux/bootmem.h>
54 #include <asm/uaccess.h>
55 #include <asm/pgtable.h>
58 #include <asm/div64.h>
61 #define LOAD_INT(x) ((x) >> FSHIFT)
62 #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
64 * Warning: stuff below (imported functions) assumes that its output will fit
65 * into one page. For some of those functions it may be wrong. Moreover, we
66 * have a way to deal with that gracefully. Right now I used straightforward
67 * wrappers, but this needs further analysis wrt potential overflows.
69 extern int get_hardware_list(char *);
70 extern int get_stram_list(char *);
71 extern int get_exec_domain_list(char *);
73 static int proc_calc_metrics(char *page, char **start, off_t off,
74 int count, int *eof, int len)
76 if (len <= off+count) *eof = 1;
79 if (len>count) len = count;
84 static int loadavg_read_proc(char *page, char **start, off_t off,
85 int count, int *eof, void *data)
92 seq = read_seqbegin(&xtime_lock);
93 a = avenrun[0] + (FIXED_1/200);
94 b = avenrun[1] + (FIXED_1/200);
95 c = avenrun[2] + (FIXED_1/200);
96 } while (read_seqretry(&xtime_lock, seq));
98 len = sprintf(page,"%d.%02d %d.%02d %d.%02d %ld/%d %d\n",
99 LOAD_INT(a), LOAD_FRAC(a),
100 LOAD_INT(b), LOAD_FRAC(b),
101 LOAD_INT(c), LOAD_FRAC(c),
102 nr_running(), nr_threads,
103 task_active_pid_ns(current)->last_pid);
104 return proc_calc_metrics(page, start, off, count, eof, len);
107 static int uptime_read_proc(char *page, char **start, off_t off,
108 int count, int *eof, void *data)
110 struct timespec uptime;
111 struct timespec idle;
113 cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
115 do_posix_clock_monotonic_gettime(&uptime);
116 monotonic_to_bootbased(&uptime);
117 cputime_to_timespec(idletime, &idle);
118 len = sprintf(page,"%lu.%02lu %lu.%02lu\n",
119 (unsigned long) uptime.tv_sec,
120 (uptime.tv_nsec / (NSEC_PER_SEC / 100)),
121 (unsigned long) idle.tv_sec,
122 (idle.tv_nsec / (NSEC_PER_SEC / 100)));
124 return proc_calc_metrics(page, start, off, count, eof, len);
127 int __attribute__((weak)) arch_report_meminfo(char *page)
132 static int meminfo_read_proc(char *page, char **start, off_t off,
133 int count, int *eof, void *data)
137 unsigned long committed;
138 unsigned long allowed;
139 struct vmalloc_info vmi;
143 * display in kilobytes.
145 #define K(x) ((x) << (PAGE_SHIFT - 10))
148 committed = atomic_long_read(&vm_committed_space);
149 allowed = ((totalram_pages - hugetlb_total_pages())
150 * sysctl_overcommit_ratio / 100) + total_swap_pages;
152 cached = global_page_state(NR_FILE_PAGES) -
153 total_swapcache_pages - i.bufferram;
157 get_vmalloc_info(&vmi);
160 * Tagged format, for easy grepping and expansion.
163 "MemTotal: %8lu kB\n"
167 "SwapCached: %8lu kB\n"
169 "Inactive: %8lu kB\n"
170 #ifdef CONFIG_HIGHMEM
171 "HighTotal: %8lu kB\n"
172 "HighFree: %8lu kB\n"
173 "LowTotal: %8lu kB\n"
176 "SwapTotal: %8lu kB\n"
177 "SwapFree: %8lu kB\n"
179 "Writeback: %8lu kB\n"
180 "AnonPages: %8lu kB\n"
183 "SReclaimable: %8lu kB\n"
184 "SUnreclaim: %8lu kB\n"
185 "PageTables: %8lu kB\n"
186 #ifdef CONFIG_QUICKLIST
187 "Quicklists: %8lu kB\n"
189 "NFS_Unstable: %8lu kB\n"
191 "WritebackTmp: %8lu kB\n"
192 "CommitLimit: %8lu kB\n"
193 "Committed_AS: %8lu kB\n"
194 "VmallocTotal: %8lu kB\n"
195 "VmallocUsed: %8lu kB\n"
196 "VmallocChunk: %8lu kB\n",
201 K(total_swapcache_pages),
202 K(global_page_state(NR_ACTIVE)),
203 K(global_page_state(NR_INACTIVE)),
204 #ifdef CONFIG_HIGHMEM
207 K(i.totalram-i.totalhigh),
208 K(i.freeram-i.freehigh),
212 K(global_page_state(NR_FILE_DIRTY)),
213 K(global_page_state(NR_WRITEBACK)),
214 K(global_page_state(NR_ANON_PAGES)),
215 K(global_page_state(NR_FILE_MAPPED)),
216 K(global_page_state(NR_SLAB_RECLAIMABLE) +
217 global_page_state(NR_SLAB_UNRECLAIMABLE)),
218 K(global_page_state(NR_SLAB_RECLAIMABLE)),
219 K(global_page_state(NR_SLAB_UNRECLAIMABLE)),
220 K(global_page_state(NR_PAGETABLE)),
221 #ifdef CONFIG_QUICKLIST
222 K(quicklist_total_size()),
224 K(global_page_state(NR_UNSTABLE_NFS)),
225 K(global_page_state(NR_BOUNCE)),
226 K(global_page_state(NR_WRITEBACK_TEMP)),
229 (unsigned long)VMALLOC_TOTAL >> 10,
231 vmi.largest_chunk >> 10
234 len += hugetlb_report_meminfo(page + len);
236 len += arch_report_meminfo(page + len);
238 return proc_calc_metrics(page, start, off, count, eof, len);
242 static int fragmentation_open(struct inode *inode, struct file *file)
245 return seq_open(file, &fragmentation_op);
248 static const struct file_operations fragmentation_file_operations = {
249 .open = fragmentation_open,
252 .release = seq_release,
255 static int pagetypeinfo_open(struct inode *inode, struct file *file)
257 return seq_open(file, &pagetypeinfo_op);
260 static const struct file_operations pagetypeinfo_file_ops = {
261 .open = pagetypeinfo_open,
264 .release = seq_release,
267 static int zoneinfo_open(struct inode *inode, struct file *file)
269 return seq_open(file, &zoneinfo_op);
272 static const struct file_operations proc_zoneinfo_file_operations = {
273 .open = zoneinfo_open,
276 .release = seq_release,
279 static int version_read_proc(char *page, char **start, off_t off,
280 int count, int *eof, void *data)
284 len = snprintf(page, PAGE_SIZE, linux_proc_banner,
288 return proc_calc_metrics(page, start, off, count, eof, len);
291 extern const struct seq_operations cpuinfo_op;
292 static int cpuinfo_open(struct inode *inode, struct file *file)
294 return seq_open(file, &cpuinfo_op);
297 static const struct file_operations proc_cpuinfo_operations = {
298 .open = cpuinfo_open,
301 .release = seq_release,
304 static int devinfo_show(struct seq_file *f, void *v)
306 int i = *(loff_t *) v;
308 if (i < CHRDEV_MAJOR_HASH_SIZE) {
310 seq_printf(f, "Character devices:\n");
315 i -= CHRDEV_MAJOR_HASH_SIZE;
317 seq_printf(f, "\nBlock devices:\n");
324 static void *devinfo_start(struct seq_file *f, loff_t *pos)
326 if (*pos < (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
331 static void *devinfo_next(struct seq_file *f, void *v, loff_t *pos)
334 if (*pos >= (BLKDEV_MAJOR_HASH_SIZE + CHRDEV_MAJOR_HASH_SIZE))
339 static void devinfo_stop(struct seq_file *f, void *v)
344 static const struct seq_operations devinfo_ops = {
345 .start = devinfo_start,
346 .next = devinfo_next,
347 .stop = devinfo_stop,
351 static int devinfo_open(struct inode *inode, struct file *filp)
353 return seq_open(filp, &devinfo_ops);
356 static const struct file_operations proc_devinfo_operations = {
357 .open = devinfo_open,
360 .release = seq_release,
363 static int vmstat_open(struct inode *inode, struct file *file)
365 return seq_open(file, &vmstat_op);
367 static const struct file_operations proc_vmstat_file_operations = {
371 .release = seq_release,
374 #ifdef CONFIG_PROC_HARDWARE
375 static int hardware_read_proc(char *page, char **start, off_t off,
376 int count, int *eof, void *data)
378 int len = get_hardware_list(page);
379 return proc_calc_metrics(page, start, off, count, eof, len);
383 #ifdef CONFIG_STRAM_PROC
384 static int stram_read_proc(char *page, char **start, off_t off,
385 int count, int *eof, void *data)
387 int len = get_stram_list(page);
388 return proc_calc_metrics(page, start, off, count, eof, len);
393 static int partitions_open(struct inode *inode, struct file *file)
395 return seq_open(file, &partitions_op);
397 static const struct file_operations proc_partitions_operations = {
398 .open = partitions_open,
401 .release = seq_release,
404 static int diskstats_open(struct inode *inode, struct file *file)
406 return seq_open(file, &diskstats_op);
408 static const struct file_operations proc_diskstats_operations = {
409 .open = diskstats_open,
412 .release = seq_release,
416 #ifdef CONFIG_MODULES
417 extern const struct seq_operations modules_op;
418 static int modules_open(struct inode *inode, struct file *file)
420 return seq_open(file, &modules_op);
422 static const struct file_operations proc_modules_operations = {
423 .open = modules_open,
426 .release = seq_release,
430 #ifdef CONFIG_SLABINFO
431 static int slabinfo_open(struct inode *inode, struct file *file)
433 return seq_open(file, &slabinfo_op);
435 static const struct file_operations proc_slabinfo_operations = {
436 .open = slabinfo_open,
438 .write = slabinfo_write,
440 .release = seq_release,
443 #ifdef CONFIG_DEBUG_SLAB_LEAK
444 extern const struct seq_operations slabstats_op;
445 static int slabstats_open(struct inode *inode, struct file *file)
447 unsigned long *n = kzalloc(PAGE_SIZE, GFP_KERNEL);
450 ret = seq_open(file, &slabstats_op);
452 struct seq_file *m = file->private_data;
453 *n = PAGE_SIZE / (2 * sizeof(unsigned long));
462 static const struct file_operations proc_slabstats_operations = {
463 .open = slabstats_open,
466 .release = seq_release_private,
472 static int vmalloc_open(struct inode *inode, struct file *file)
474 unsigned int *ptr = NULL;
478 ptr = kmalloc(nr_node_ids * sizeof(unsigned int), GFP_KERNEL);
479 ret = seq_open(file, &vmalloc_op);
481 struct seq_file *m = file->private_data;
488 static const struct file_operations proc_vmalloc_operations = {
489 .open = vmalloc_open,
492 .release = seq_release_private,
496 #ifndef arch_irq_stat_cpu
497 #define arch_irq_stat_cpu(cpu) 0
499 #ifndef arch_irq_stat
500 #define arch_irq_stat() 0
503 static int show_stat(struct seq_file *p, void *v)
507 cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
510 struct timespec boottime;
511 unsigned int per_irq_sum;
513 user = nice = system = idle = iowait =
514 irq = softirq = steal = cputime64_zero;
515 guest = cputime64_zero;
516 getboottime(&boottime);
517 jif = boottime.tv_sec;
519 for_each_possible_cpu(i) {
520 user = cputime64_add(user, kstat_cpu(i).cpustat.user);
521 nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
522 system = cputime64_add(system, kstat_cpu(i).cpustat.system);
523 idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle);
524 iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait);
525 irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
526 softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
527 steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
528 guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
531 sum += kstat_irqs_cpu(j, i);
533 sum += arch_irq_stat_cpu(i);
535 sum += arch_irq_stat();
537 seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
538 (unsigned long long)cputime64_to_clock_t(user),
539 (unsigned long long)cputime64_to_clock_t(nice),
540 (unsigned long long)cputime64_to_clock_t(system),
541 (unsigned long long)cputime64_to_clock_t(idle),
542 (unsigned long long)cputime64_to_clock_t(iowait),
543 (unsigned long long)cputime64_to_clock_t(irq),
544 (unsigned long long)cputime64_to_clock_t(softirq),
545 (unsigned long long)cputime64_to_clock_t(steal),
546 (unsigned long long)cputime64_to_clock_t(guest));
547 for_each_online_cpu(i) {
549 /* Copy values here to work around gcc-2.95.3, gcc-2.96 */
550 user = kstat_cpu(i).cpustat.user;
551 nice = kstat_cpu(i).cpustat.nice;
552 system = kstat_cpu(i).cpustat.system;
553 idle = kstat_cpu(i).cpustat.idle;
554 iowait = kstat_cpu(i).cpustat.iowait;
555 irq = kstat_cpu(i).cpustat.irq;
556 softirq = kstat_cpu(i).cpustat.softirq;
557 steal = kstat_cpu(i).cpustat.steal;
558 guest = kstat_cpu(i).cpustat.guest;
560 "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
562 (unsigned long long)cputime64_to_clock_t(user),
563 (unsigned long long)cputime64_to_clock_t(nice),
564 (unsigned long long)cputime64_to_clock_t(system),
565 (unsigned long long)cputime64_to_clock_t(idle),
566 (unsigned long long)cputime64_to_clock_t(iowait),
567 (unsigned long long)cputime64_to_clock_t(irq),
568 (unsigned long long)cputime64_to_clock_t(softirq),
569 (unsigned long long)cputime64_to_clock_t(steal),
570 (unsigned long long)cputime64_to_clock_t(guest));
572 seq_printf(p, "intr %llu", (unsigned long long)sum);
574 /* sum again ? it could be updated? */
578 for_each_possible_cpu(i)
579 per_irq_sum += kstat_irqs_cpu(j, i);
581 seq_printf(p, " %u", per_irq_sum);
588 "procs_running %lu\n"
589 "procs_blocked %lu\n",
590 nr_context_switches(),
599 static int stat_open(struct inode *inode, struct file *file)
601 unsigned size = 4096 * (1 + num_possible_cpus() / 32);
606 /* don't ask for more than the kmalloc() max size, currently 128 KB */
607 if (size > 128 * 1024)
609 buf = kmalloc(size, GFP_KERNEL);
613 res = single_open(file, show_stat, NULL);
615 m = file->private_data;
622 static const struct file_operations proc_stat_operations = {
626 .release = single_release,
632 static void *int_seq_start(struct seq_file *f, loff_t *pos)
634 return (*pos <= nr_irqs) ? pos : NULL;
638 static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
641 return (*pos <= nr_irqs) ? pos : NULL;
644 static void int_seq_stop(struct seq_file *f, void *v)
649 static const struct seq_operations int_seq_ops = {
650 .start = int_seq_start,
651 .next = int_seq_next,
652 .stop = int_seq_stop,
653 .show = show_interrupts
656 static int interrupts_open(struct inode *inode, struct file *filp)
658 return seq_open(filp, &int_seq_ops);
661 static const struct file_operations proc_interrupts_operations = {
662 .open = interrupts_open,
665 .release = seq_release,
668 static int filesystems_read_proc(char *page, char **start, off_t off,
669 int count, int *eof, void *data)
671 int len = get_filesystem_list(page);
672 return proc_calc_metrics(page, start, off, count, eof, len);
675 static int cmdline_read_proc(char *page, char **start, off_t off,
676 int count, int *eof, void *data)
680 len = sprintf(page, "%s\n", saved_command_line);
681 return proc_calc_metrics(page, start, off, count, eof, len);
684 #ifdef CONFIG_FILE_LOCKING
685 static int locks_open(struct inode *inode, struct file *filp)
687 return seq_open(filp, &locks_seq_operations);
690 static const struct file_operations proc_locks_operations = {
694 .release = seq_release,
696 #endif /* CONFIG_FILE_LOCKING */
698 static int execdomains_read_proc(char *page, char **start, off_t off,
699 int count, int *eof, void *data)
701 int len = get_exec_domain_list(page);
702 return proc_calc_metrics(page, start, off, count, eof, len);
705 #ifdef CONFIG_MAGIC_SYSRQ
707 * writing 'C' to /proc/sysrq-trigger is like sysrq-C
709 static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
710 size_t count, loff_t *ppos)
715 if (get_user(c, buf))
717 __handle_sysrq(c, NULL, 0);
722 static const struct file_operations proc_sysrq_trigger_operations = {
723 .write = write_sysrq_trigger,
727 #ifdef CONFIG_PROC_PAGE_MONITOR
728 #define KPMSIZE sizeof(u64)
729 #define KPMMASK (KPMSIZE - 1)
730 /* /proc/kpagecount - an array exposing page counts
732 * Each entry is a u64 representing the corresponding
733 * physical page count.
735 static ssize_t kpagecount_read(struct file *file, char __user *buf,
736 size_t count, loff_t *ppos)
738 u64 __user *out = (u64 __user *)buf;
740 unsigned long src = *ppos;
746 count = min_t(size_t, count, (max_pfn * KPMSIZE) - src);
747 if (src & KPMMASK || count & KPMMASK)
753 ppage = pfn_to_page(pfn);
758 pcount = page_mapcount(ppage);
760 if (put_user(pcount, out++)) {
768 *ppos += (char __user *)out - buf;
770 ret = (char __user *)out - buf;
774 static struct file_operations proc_kpagecount_operations = {
776 .read = kpagecount_read,
779 /* /proc/kpageflags - an array exposing page flags
781 * Each entry is a u64 representing the corresponding
782 * physical page flags.
785 /* These macros are used to decouple internal flags from exported ones */
789 #define KPF_REFERENCED 2
790 #define KPF_UPTODATE 3
795 #define KPF_WRITEBACK 8
796 #define KPF_RECLAIM 9
799 #define kpf_copy_bit(flags, srcpos, dstpos) (((flags >> srcpos) & 1) << dstpos)
801 static ssize_t kpageflags_read(struct file *file, char __user *buf,
802 size_t count, loff_t *ppos)
804 u64 __user *out = (u64 __user *)buf;
806 unsigned long src = *ppos;
812 count = min_t(unsigned long, count, (max_pfn * KPMSIZE) - src);
813 if (src & KPMMASK || count & KPMMASK)
819 ppage = pfn_to_page(pfn);
824 kflags = ppage->flags;
826 uflags = kpf_copy_bit(KPF_LOCKED, PG_locked, kflags) |
827 kpf_copy_bit(kflags, KPF_ERROR, PG_error) |
828 kpf_copy_bit(kflags, KPF_REFERENCED, PG_referenced) |
829 kpf_copy_bit(kflags, KPF_UPTODATE, PG_uptodate) |
830 kpf_copy_bit(kflags, KPF_DIRTY, PG_dirty) |
831 kpf_copy_bit(kflags, KPF_LRU, PG_lru) |
832 kpf_copy_bit(kflags, KPF_ACTIVE, PG_active) |
833 kpf_copy_bit(kflags, KPF_SLAB, PG_slab) |
834 kpf_copy_bit(kflags, KPF_WRITEBACK, PG_writeback) |
835 kpf_copy_bit(kflags, KPF_RECLAIM, PG_reclaim) |
836 kpf_copy_bit(kflags, KPF_BUDDY, PG_buddy);
838 if (put_user(uflags, out++)) {
846 *ppos += (char __user *)out - buf;
848 ret = (char __user *)out - buf;
852 static struct file_operations proc_kpageflags_operations = {
854 .read = kpageflags_read,
856 #endif /* CONFIG_PROC_PAGE_MONITOR */
858 struct proc_dir_entry *proc_root_kcore;
860 void __init proc_misc_init(void)
864 int (*read_proc)(char*,char**,off_t,int,int*,void*);
865 } *p, simple_ones[] = {
866 {"loadavg", loadavg_read_proc},
867 {"uptime", uptime_read_proc},
868 {"meminfo", meminfo_read_proc},
869 {"version", version_read_proc},
870 #ifdef CONFIG_PROC_HARDWARE
871 {"hardware", hardware_read_proc},
873 #ifdef CONFIG_STRAM_PROC
874 {"stram", stram_read_proc},
876 {"filesystems", filesystems_read_proc},
877 {"cmdline", cmdline_read_proc},
878 {"execdomains", execdomains_read_proc},
881 for (p = simple_ones; p->name; p++)
882 create_proc_read_entry(p->name, 0, NULL, p->read_proc, NULL);
884 proc_symlink("mounts", NULL, "self/mounts");
886 /* And now for trickier ones */
888 proc_create("kmsg", S_IRUSR, NULL, &proc_kmsg_operations);
890 #ifdef CONFIG_FILE_LOCKING
891 proc_create("locks", 0, NULL, &proc_locks_operations);
893 proc_create("devices", 0, NULL, &proc_devinfo_operations);
894 proc_create("cpuinfo", 0, NULL, &proc_cpuinfo_operations);
896 proc_create("partitions", 0, NULL, &proc_partitions_operations);
898 proc_create("stat", 0, NULL, &proc_stat_operations);
899 proc_create("interrupts", 0, NULL, &proc_interrupts_operations);
900 #ifdef CONFIG_SLABINFO
901 proc_create("slabinfo",S_IWUSR|S_IRUGO,NULL,&proc_slabinfo_operations);
902 #ifdef CONFIG_DEBUG_SLAB_LEAK
903 proc_create("slab_allocators", 0, NULL, &proc_slabstats_operations);
907 proc_create("vmallocinfo", S_IRUSR, NULL, &proc_vmalloc_operations);
909 proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
910 proc_create("pagetypeinfo", S_IRUGO, NULL, &pagetypeinfo_file_ops);
911 proc_create("vmstat", S_IRUGO, NULL, &proc_vmstat_file_operations);
912 proc_create("zoneinfo", S_IRUGO, NULL, &proc_zoneinfo_file_operations);
914 proc_create("diskstats", 0, NULL, &proc_diskstats_operations);
916 #ifdef CONFIG_MODULES
917 proc_create("modules", 0, NULL, &proc_modules_operations);
919 #ifdef CONFIG_SCHEDSTATS
920 proc_create("schedstat", 0, NULL, &proc_schedstat_operations);
922 #ifdef CONFIG_PROC_KCORE
923 proc_root_kcore = proc_create("kcore", S_IRUSR, NULL, &proc_kcore_operations);
925 proc_root_kcore->size =
926 (size_t)high_memory - PAGE_OFFSET + PAGE_SIZE;
928 #ifdef CONFIG_PROC_PAGE_MONITOR
929 proc_create("kpagecount", S_IRUSR, NULL, &proc_kpagecount_operations);
930 proc_create("kpageflags", S_IRUSR, NULL, &proc_kpageflags_operations);
932 #ifdef CONFIG_PROC_VMCORE
933 proc_vmcore = proc_create("vmcore", S_IRUSR, NULL, &proc_vmcore_operations);
935 #ifdef CONFIG_MAGIC_SYSRQ
936 proc_create("sysrq-trigger", S_IWUSR, NULL, &proc_sysrq_trigger_operations);