-#ifdef CONFIG_SLABINFO
-static int slabinfo_open(struct inode *inode, struct file *file)
-{
- return seq_open(file, &slabinfo_op);
-}
-static const struct file_operations proc_slabinfo_operations = {
- .open = slabinfo_open,
- .read = seq_read,
- .write = slabinfo_write,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-#ifdef CONFIG_DEBUG_SLAB_LEAK
-extern const struct seq_operations slabstats_op;
-static int slabstats_open(struct inode *inode, struct file *file)
-{
- unsigned long *n = kzalloc(PAGE_SIZE, GFP_KERNEL);
- int ret = -ENOMEM;
- if (n) {
- ret = seq_open(file, &slabstats_op);
- if (!ret) {
- struct seq_file *m = file->private_data;
- *n = PAGE_SIZE / (2 * sizeof(unsigned long));
- m->private = n;
- n = NULL;
- }
- kfree(n);
- }
- return ret;
-}
-
-static const struct file_operations proc_slabstats_operations = {
- .open = slabstats_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-#endif
-#endif
-
-#ifdef CONFIG_MMU
-static int vmalloc_open(struct inode *inode, struct file *file)
-{
- unsigned int *ptr = NULL;
- int ret;
-
- if (NUMA_BUILD)
- ptr = kmalloc(nr_node_ids * sizeof(unsigned int), GFP_KERNEL);
- ret = seq_open(file, &vmalloc_op);
- if (!ret) {
- struct seq_file *m = file->private_data;
- m->private = ptr;
- } else
- kfree(ptr);
- return ret;
-}
-
-static const struct file_operations proc_vmalloc_operations = {
- .open = vmalloc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-#endif
-
-#ifndef arch_irq_stat_cpu
-#define arch_irq_stat_cpu(cpu) 0
-#endif
-#ifndef arch_irq_stat
-#define arch_irq_stat() 0
-#endif
-
-static int show_stat(struct seq_file *p, void *v)
-{
- int i;
- unsigned long jif;
- cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
- cputime64_t guest;
- u64 sum = 0;
- struct timespec boottime;
- unsigned int *per_irq_sum;
-
- per_irq_sum = kzalloc(sizeof(unsigned int)*NR_IRQS, GFP_KERNEL);
- if (!per_irq_sum)
- return -ENOMEM;
-
- user = nice = system = idle = iowait =
- irq = softirq = steal = cputime64_zero;
- guest = cputime64_zero;
- getboottime(&boottime);
- jif = boottime.tv_sec;
-
- for_each_possible_cpu(i) {
- int j;
-
- user = cputime64_add(user, kstat_cpu(i).cpustat.user);
- nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
- system = cputime64_add(system, kstat_cpu(i).cpustat.system);
- idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle);
- iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait);
- irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
- softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
- steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
- guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
- for (j = 0; j < NR_IRQS; j++) {
- unsigned int temp = kstat_cpu(i).irqs[j];
- sum += temp;
- per_irq_sum[j] += temp;
- }
- sum += arch_irq_stat_cpu(i);
- }
- sum += arch_irq_stat();
-
- seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
- (unsigned long long)cputime64_to_clock_t(user),
- (unsigned long long)cputime64_to_clock_t(nice),
- (unsigned long long)cputime64_to_clock_t(system),
- (unsigned long long)cputime64_to_clock_t(idle),
- (unsigned long long)cputime64_to_clock_t(iowait),
- (unsigned long long)cputime64_to_clock_t(irq),
- (unsigned long long)cputime64_to_clock_t(softirq),
- (unsigned long long)cputime64_to_clock_t(steal),
- (unsigned long long)cputime64_to_clock_t(guest));
- for_each_online_cpu(i) {
-
- /* Copy values here to work around gcc-2.95.3, gcc-2.96 */
- user = kstat_cpu(i).cpustat.user;
- nice = kstat_cpu(i).cpustat.nice;
- system = kstat_cpu(i).cpustat.system;
- idle = kstat_cpu(i).cpustat.idle;
- iowait = kstat_cpu(i).cpustat.iowait;
- irq = kstat_cpu(i).cpustat.irq;
- softirq = kstat_cpu(i).cpustat.softirq;
- steal = kstat_cpu(i).cpustat.steal;
- guest = kstat_cpu(i).cpustat.guest;
- seq_printf(p,
- "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu %llu\n",
- i,
- (unsigned long long)cputime64_to_clock_t(user),
- (unsigned long long)cputime64_to_clock_t(nice),
- (unsigned long long)cputime64_to_clock_t(system),
- (unsigned long long)cputime64_to_clock_t(idle),
- (unsigned long long)cputime64_to_clock_t(iowait),
- (unsigned long long)cputime64_to_clock_t(irq),
- (unsigned long long)cputime64_to_clock_t(softirq),
- (unsigned long long)cputime64_to_clock_t(steal),
- (unsigned long long)cputime64_to_clock_t(guest));
- }
- seq_printf(p, "intr %llu", (unsigned long long)sum);
-
- for (i = 0; i < NR_IRQS; i++)
- seq_printf(p, " %u", per_irq_sum[i]);
-
- seq_printf(p,
- "\nctxt %llu\n"
- "btime %lu\n"
- "processes %lu\n"
- "procs_running %lu\n"
- "procs_blocked %lu\n",
- nr_context_switches(),
- (unsigned long)jif,
- total_forks,
- nr_running(),
- nr_iowait());
-
- kfree(per_irq_sum);
- return 0;
-}
-
-static int stat_open(struct inode *inode, struct file *file)
-{
- unsigned size = 4096 * (1 + num_possible_cpus() / 32);
- char *buf;
- struct seq_file *m;
- int res;
-
- /* don't ask for more than the kmalloc() max size, currently 128 KB */
- if (size > 128 * 1024)
- size = 128 * 1024;
- buf = kmalloc(size, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- res = single_open(file, show_stat, NULL);
- if (!res) {
- m = file->private_data;
- m->buf = buf;
- m->size = size;
- } else
- kfree(buf);
- return res;
-}
-static const struct file_operations proc_stat_operations = {
- .open = stat_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-/*
- * /proc/interrupts
- */
-static void *int_seq_start(struct seq_file *f, loff_t *pos)
-{
- return (*pos <= NR_IRQS) ? pos : NULL;
-}
-
-static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
-{
- (*pos)++;
- if (*pos > NR_IRQS)
- return NULL;
- return pos;
-}
-
-static void int_seq_stop(struct seq_file *f, void *v)
-{
- /* Nothing to do */
-}
-
-
-static const struct seq_operations int_seq_ops = {
- .start = int_seq_start,
- .next = int_seq_next,
- .stop = int_seq_stop,
- .show = show_interrupts
-};
-
-static int interrupts_open(struct inode *inode, struct file *filp)
-{
- return seq_open(filp, &int_seq_ops);
-}
-
-static const struct file_operations proc_interrupts_operations = {
- .open = interrupts_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-
-static int filesystems_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = get_filesystem_list(page);
- return proc_calc_metrics(page, start, off, count, eof, len);
-}
-
-static int cmdline_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len;
-
- len = sprintf(page, "%s\n", saved_command_line);
- return proc_calc_metrics(page, start, off, count, eof, len);
-}
-
-#ifdef CONFIG_FILE_LOCKING
-static int locks_open(struct inode *inode, struct file *filp)
-{
- return seq_open(filp, &locks_seq_operations);
-}
-
-static const struct file_operations proc_locks_operations = {
- .open = locks_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release,
-};
-#endif /* CONFIG_FILE_LOCKING */
-
-static int execdomains_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- int len = get_exec_domain_list(page);
- return proc_calc_metrics(page, start, off, count, eof, len);
-}
-
-#ifdef CONFIG_MAGIC_SYSRQ
-/*
- * writing 'C' to /proc/sysrq-trigger is like sysrq-C
- */
-static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- if (count) {
- char c;
-
- if (get_user(c, buf))
- return -EFAULT;
- __handle_sysrq(c, NULL, 0);
- }
- return count;
-}
-
-static const struct file_operations proc_sysrq_trigger_operations = {
- .write = write_sysrq_trigger,
-};
-#endif
-