convert buddyinfo to seq_file()

diff -urN linux-aa-virgin/fs/proc/proc_misc.c linux-aa-wli/fs/proc/proc_misc.c
@@ -234,21 +234,20 @@
 #undef K
 }
 
-extern int buddyinfo(char *buf, int node_id);
-
-int buddyinfo_read_proc(char *page, char **start, off_t off,
-		        int count, int *eof, void *data)
+extern struct seq_operations fragmentation_op;
+static int fragmentation_open(struct inode *inode, struct file *file)
 {
-	int node_id;
-	int len = 0;
-
-	for (node_id = 0; node_id < numnodes; node_id++) {
-		len += buddyinfo(page+len, node_id);
-	} 
-	
-	return proc_calc_metrics(page, start, off, count, eof, len);
+	(void)inode;
+	return seq_open(file, &fragmentation_op);
 }
 
+static struct file_operations fragmentation_file_operations = {
+	open:		fragmentation_open,
+	read:		seq_read,
+	llseek:		seq_lseek,
+	release:	seq_release,
+};
+
 static int version_read_proc(char *page, char **start, off_t off,
 				 int count, int *eof, void *data)
 {

@@ -691,6 +690,7 @@
 		entry->proc_fops = &proc_kmsg_operations;
 	create_seq_entry("cpuinfo", 0, &proc_cpuinfo_operations);
 	create_seq_entry("slabinfo",S_IWUSR|S_IRUGO,&proc_slabinfo_operations);
+	create_seq_entry("buddyinfo",S_IRUGO, &fragmentation_file_operations);
 #ifdef CONFIG_MODULES
 	create_seq_entry("ksyms", 0, &proc_ksyms_operations);
 #endif

@@ -715,7 +715,4 @@
 			entry->proc_fops = &ppc_htab_operations;
 	}
 #endif
-
-	create_proc_read_entry("buddyinfo", S_IWUSR | S_IRUGO, NULL,
-			       buddyinfo_read_proc, NULL);
 }

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