[PATCH 1/3] [Generic] Transition /proc/cpuinfo -> sysfs

[Deepak Saxena <dsaxena@plexity.net>]

- Add printk to cpuinfo_open reminding user to transition to sysfs
- Add arch_cpuinfo field to struct cpu

diff -Nru a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
--- a/fs/proc/proc_misc.c	Wed Aug 11 14:46:15 2004
+++ b/fs/proc/proc_misc.c	Wed Aug 11 14:46:15 2004
@@ -258,11 +258,18 @@
 	return proc_calc_metrics(page, start, off, count, eof, len);
 }
 
+#define	CPUINFO_REMOVAL_DATE "September 1st, 2005"
 extern struct seq_operations cpuinfo_op;
 static int cpuinfo_open(struct inode *inode, struct file *file)
 {
+	printk(KERN_WARNING "Using depecrated /proc/cpuinfo interface\n");
+	printk(KERN_WARNING "This interface will be deleted on %s\n", 
+			CPUINFO_REMOVAL_DATE);
+	printk(KERN_WARNING "Please use syfs interface instead\n");
+
 	return seq_open(file, &cpuinfo_op);
 }
+
 static struct file_operations proc_cpuinfo_operations = {
 	.open		= cpuinfo_open,
 	.read		= seq_read,
diff -Nru a/include/linux/cpu.h b/include/linux/cpu.h
--- a/include/linux/cpu.h	Wed Aug 11 14:46:15 2004
+++ b/include/linux/cpu.h	Wed Aug 11 14:46:15 2004
@@ -28,6 +28,7 @@
 struct cpu {
 	int node_id;		/* The node which contains the CPU */
 	int no_control;		/* Should the sysfs control file be created? */
+	void *arch_cpuinfo;	/* Per-cpu arch data */
 	struct sys_device sysdev;
 };
 

-- 
Deepak Saxena - dsaxena at plexity dot net - http://www.plexity.net/

"Unlike me, many of you have accepted the situation of your imprisonment and
 will die here like rotten cabbages." - Number 6