vmalloc: show vmalloced areas via /proc/vmallocinfo

[linux-2.6-omap-h63xx.git] / fs / proc / proc_misc.c

diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 468805d40e2bdb44daeb43bfccf4a1b5919c7add..441a32f0e5f2f4460c243ad17ea29249bbd38728 100644 (file)
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -32,6 +32,7 @@
 #include <linux/interrupt.h>
 #include <linux/swap.h>
 #include <linux/slab.h>
+#include <linux/genhd.h>
 #include <linux/smp.h>
 #include <linux/signal.h>
 #include <linux/module.h>
@@ -377,7 +378,6 @@ static int stram_read_proc(char *page, char **start, off_t off,
 #endif
 
 #ifdef CONFIG_BLOCK
-extern const struct seq_operations partitions_op;
 static int partitions_open(struct inode *inode, struct file *file)
 {
        return seq_open(file, &partitions_op);
@@ -389,7 +389,6 @@ static const struct file_operations proc_partitions_operations = {
        .release        = seq_release,
 };
 
-extern const struct seq_operations diskstats_op;
 static int diskstats_open(struct inode *inode, struct file *file)
 {
        return seq_open(file, &diskstats_op);
@@ -457,6 +456,20 @@ static const struct file_operations proc_slabstats_operations = {
 #endif
 #endif
 
+#ifdef CONFIG_MMU
+static int vmalloc_open(struct inode *inode, struct file *file)
+{
+       return seq_open(file, &vmalloc_op);
+}
+
+static const struct file_operations proc_vmalloc_operations = {
+       .open           = vmalloc_open,
+       .read           = seq_read,
+       .llseek         = seq_lseek,
+       .release        = seq_release,
+};
+#endif
+
 static int show_stat(struct seq_file *p, void *v)
 {
        int i;
@@ -869,6 +882,9 @@ void __init proc_misc_init(void)
 #ifdef CONFIG_DEBUG_SLAB_LEAK
        create_seq_entry("slab_allocators", 0 ,&proc_slabstats_operations);
 #endif
+#endif
+#ifdef CONFIG_MMU
+       proc_create("vmallocinfo", S_IRUSR, NULL, &proc_vmalloc_operations);
 #endif
        create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
        create_seq_entry("pagetypeinfo", S_IRUGO, &pagetypeinfo_file_ops);