]> err.no Git - linux-2.6/blobdiff - fs/proc/proc_misc.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
[linux-2.6] / fs / proc / proc_misc.c
index b37ce33f67eaf1c24b96bac8a2147e4ac94c2a08..bee251cb87c8c42c3d051ec2ea53df209e422c52 100644 (file)
@@ -35,7 +35,6 @@
 #include <linux/signal.h>
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/smp_lock.h>
 #include <linux/seq_file.h>
 #include <linux/times.h>
 #include <linux/profile.h>
@@ -106,6 +105,7 @@ static int uptime_read_proc(char *page, char **start, off_t off,
        cputime_t idletime = cputime_add(init_task.utime, init_task.stime);
 
        do_posix_clock_monotonic_gettime(&uptime);
+       monotonic_to_bootbased(&uptime);
        cputime_to_timespec(idletime, &idle);
        len = sprintf(page,"%lu.%02lu %lu.%02lu\n",
                        (unsigned long) uptime.tv_sec,
@@ -121,16 +121,11 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
 {
        struct sysinfo i;
        int len;
-       unsigned long inactive;
-       unsigned long active;
-       unsigned long free;
        unsigned long committed;
        unsigned long allowed;
        struct vmalloc_info vmi;
        long cached;
 
-       get_zone_counts(&active, &inactive, &free);
-
 /*
  * display in kilobytes.
  */
@@ -187,8 +182,8 @@ static int meminfo_read_proc(char *page, char **start, off_t off,
                K(i.bufferram),
                K(cached),
                K(total_swapcache_pages),
-               K(active),
-               K(inactive),
+               K(global_page_state(NR_ACTIVE)),
+               K(global_page_state(NR_INACTIVE)),
 #ifdef CONFIG_HIGHMEM
                K(i.totalhigh),
                K(i.freehigh),
@@ -228,7 +223,7 @@ static int fragmentation_open(struct inode *inode, struct file *file)
        return seq_open(file, &fragmentation_op);
 }
 
-static struct file_operations fragmentation_file_operations = {
+static const struct file_operations fragmentation_file_operations = {
        .open           = fragmentation_open,
        .read           = seq_read,
        .llseek         = seq_lseek,
@@ -241,7 +236,7 @@ static int zoneinfo_open(struct inode *inode, struct file *file)
        return seq_open(file, &zoneinfo_op);
 }
 
-static struct file_operations proc_zoneinfo_file_operations = {
+static const struct file_operations proc_zoneinfo_file_operations = {
        .open           = zoneinfo_open,
        .read           = seq_read,
        .llseek         = seq_lseek,
@@ -266,7 +261,7 @@ static int cpuinfo_open(struct inode *inode, struct file *file)
        return seq_open(file, &cpuinfo_op);
 }
 
-static struct file_operations proc_cpuinfo_operations = {
+static const struct file_operations proc_cpuinfo_operations = {
        .open           = cpuinfo_open,
        .read           = seq_read,
        .llseek         = seq_lseek,
@@ -325,7 +320,7 @@ static int devinfo_open(struct inode *inode, struct file *filp)
        return seq_open(filp, &devinfo_ops);
 }
 
-static struct file_operations proc_devinfo_operations = {
+static const struct file_operations proc_devinfo_operations = {
        .open           = devinfo_open,
        .read           = seq_read,
        .llseek         = seq_lseek,
@@ -337,7 +332,7 @@ static int vmstat_open(struct inode *inode, struct file *file)
 {
        return seq_open(file, &vmstat_op);
 }
-static struct file_operations proc_vmstat_file_operations = {
+static const struct file_operations proc_vmstat_file_operations = {
        .open           = vmstat_open,
        .read           = seq_read,
        .llseek         = seq_lseek,
@@ -368,7 +363,7 @@ static int partitions_open(struct inode *inode, struct file *file)
 {
        return seq_open(file, &partitions_op);
 }
-static struct file_operations proc_partitions_operations = {
+static const struct file_operations proc_partitions_operations = {
        .open           = partitions_open,
        .read           = seq_read,
        .llseek         = seq_lseek,
@@ -380,7 +375,7 @@ static int diskstats_open(struct inode *inode, struct file *file)
 {
        return seq_open(file, &diskstats_op);
 }
-static struct file_operations proc_diskstats_operations = {
+static const struct file_operations proc_diskstats_operations = {
        .open           = diskstats_open,
        .read           = seq_read,
        .llseek         = seq_lseek,
@@ -394,7 +389,7 @@ static int modules_open(struct inode *inode, struct file *file)
 {
        return seq_open(file, &modules_op);
 }
-static struct file_operations proc_modules_operations = {
+static const struct file_operations proc_modules_operations = {
        .open           = modules_open,
        .read           = seq_read,
        .llseek         = seq_lseek,
@@ -403,13 +398,11 @@ static struct file_operations proc_modules_operations = {
 #endif
 
 #ifdef CONFIG_SLAB
-extern struct seq_operations slabinfo_op;
-extern ssize_t slabinfo_write(struct file *, const char __user *, size_t, loff_t *);
 static int slabinfo_open(struct inode *inode, struct file *file)
 {
        return seq_open(file, &slabinfo_op);
 }
-static struct file_operations proc_slabinfo_operations = {
+static const struct file_operations proc_slabinfo_operations = {
        .open           = slabinfo_open,
        .read           = seq_read,
        .write          = slabinfo_write,
@@ -436,18 +429,11 @@ static int slabstats_open(struct inode *inode, struct file *file)
        return ret;
 }
 
-static int slabstats_release(struct inode *inode, struct file *file)
-{
-       struct seq_file *m = file->private_data;
-       kfree(m->private);
-       return seq_release(inode, file);
-}
-
-static struct file_operations proc_slabstats_operations = {
+static const struct file_operations proc_slabstats_operations = {
        .open           = slabstats_open,
        .read           = seq_read,
        .llseek         = seq_lseek,
-       .release        = slabstats_release,
+       .release        = seq_release_private,
 };
 #endif
 #endif
@@ -458,12 +444,17 @@ static int show_stat(struct seq_file *p, void *v)
        unsigned long jif;
        cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
        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;
-       jif = - wall_to_monotonic.tv_sec;
-       if (wall_to_monotonic.tv_nsec)
-               --jif;
+       getboottime(&boottime);
+       jif = boottime.tv_sec;
 
        for_each_possible_cpu(i) {
                int j;
@@ -476,8 +467,11 @@ static int show_stat(struct seq_file *p, void *v)
                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);
-               for (j = 0 ; j < NR_IRQS ; j++)
-                       sum += kstat_cpu(i).irqs[j];
+               for (j = 0; j < NR_IRQS; j++) {
+                       unsigned int temp = kstat_cpu(i).irqs[j];
+                       sum += temp;
+                       per_irq_sum[j] += temp;
+               }
        }
 
        seq_printf(p, "cpu  %llu %llu %llu %llu %llu %llu %llu %llu\n",
@@ -513,9 +507,10 @@ static int show_stat(struct seq_file *p, void *v)
        }
        seq_printf(p, "intr %llu", (unsigned long long)sum);
 
-#if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64)
+#ifndef CONFIG_SMP
+       /* Touches too many cache lines on SMP setups */
        for (i = 0; i < NR_IRQS; i++)
-               seq_printf(p, " %u", kstat_irqs(i));
+               seq_printf(p, " %u", per_irq_sum[i]);
 #endif
 
        seq_printf(p,
@@ -530,6 +525,7 @@ static int show_stat(struct seq_file *p, void *v)
                nr_running(),
                nr_iowait());
 
+       kfree(per_irq_sum);
        return 0;
 }
 
@@ -556,7 +552,7 @@ static int stat_open(struct inode *inode, struct file *file)
                kfree(buf);
        return res;
 }
-static struct file_operations proc_stat_operations = {
+static const struct file_operations proc_stat_operations = {
        .open           = stat_open,
        .read           = seq_read,
        .llseek         = seq_lseek,
@@ -598,7 +594,7 @@ static int interrupts_open(struct inode *inode, struct file *filp)
        return seq_open(filp, &int_seq_ops);
 }
 
-static struct file_operations proc_interrupts_operations = {
+static const struct file_operations proc_interrupts_operations = {
        .open           = interrupts_open,
        .read           = seq_read,
        .llseek         = seq_lseek,
@@ -655,7 +651,7 @@ static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
        return count;
 }
 
-static struct file_operations proc_sysrq_trigger_operations = {
+static const struct file_operations proc_sysrq_trigger_operations = {
        .write          = write_sysrq_trigger,
 };
 #endif
@@ -672,7 +668,6 @@ void create_seq_entry(char *name, mode_t mode, const struct file_operations *f)
 
 void __init proc_misc_init(void)
 {
-       struct proc_dir_entry *entry;
        static struct {
                char *name;
                int (*read_proc)(char*,char**,off_t,int,int*,void*);
@@ -700,9 +695,12 @@ void __init proc_misc_init(void)
 
        /* And now for trickier ones */
 #ifdef CONFIG_PRINTK
-       entry = create_proc_entry("kmsg", S_IRUSR, &proc_root);
-       if (entry)
-               entry->proc_fops = &proc_kmsg_operations;
+       {
+               struct proc_dir_entry *entry;
+               entry = create_proc_entry("kmsg", S_IRUSR, &proc_root);
+               if (entry)
+                       entry->proc_fops = &proc_kmsg_operations;
+       }
 #endif
        create_seq_entry("devices", 0, &proc_devinfo_operations);
        create_seq_entry("cpuinfo", 0, &proc_cpuinfo_operations);
@@ -743,8 +741,11 @@ void __init proc_misc_init(void)
                proc_vmcore->proc_fops = &proc_vmcore_operations;
 #endif
 #ifdef CONFIG_MAGIC_SYSRQ
-       entry = create_proc_entry("sysrq-trigger", S_IWUSR, NULL);
-       if (entry)
-               entry->proc_fops = &proc_sysrq_trigger_operations;
+       {
+               struct proc_dir_entry *entry;
+               entry = create_proc_entry("sysrq-trigger", S_IWUSR, NULL);
+               if (entry)
+                       entry->proc_fops = &proc_sysrq_trigger_operations;
+       }
 #endif
 }