From 85badbdf5120d246ce2bb3f1a7689a805f9c9006 Mon Sep 17 00:00:00 2001
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Wed, 9 May 2007 02:33:33 -0700
Subject: use simple_read_from_buffer in kernel/

Cleanup using simple_read_from_buffer() for /dev/cpuset/tasks and
/proc/config.gz.

Cc: Paul Jackson <pj@sgi.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/cpuset.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

(limited to 'kernel/cpuset.c')

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 88b416dfbc72..f57854b08922 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -1772,12 +1772,7 @@ static ssize_t cpuset_tasks_read(struct file *file, char __user *buf,
 {
 	struct ctr_struct *ctr = file->private_data;
 
-	if (*ppos + nbytes > ctr->bufsz)
-		nbytes = ctr->bufsz - *ppos;
-	if (copy_to_user(buf, ctr->buf + *ppos, nbytes))
-		return -EFAULT;
-	*ppos += nbytes;
-	return nbytes;
+	return simple_read_from_buffer(buf, nbytes, ppos, ctr->buf, ctr->bufsz);
 }
 
 static int cpuset_tasks_release(struct inode *unused_inode, struct file *file)
-- 
cgit v1.2.3-59-g8ed1b