From: Haibo Liu <HaiboLiu6@gmai.com>
Date: Mon, 9 Jul 2012 20:29:28 +0000 (-0400)
Subject: ext4: remove an unused statement in ext4_mb_get_buddy_page_lock()
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=62a1391ddd6fbe82fc02154dc760bcc5cbc9ef68;p=openwrt%2Fstaging%2Fblogic.git

ext4: remove an unused statement in ext4_mb_get_buddy_page_lock()

In this patch, the statement "poff = block % blocks_per_page"
in ext4_mb_get_buddy_page_lock has no effect.

It will be optimized out by the compiler, but it's better to remove it.

Signed-off-by: Haibo Liu <HaiboLiu6@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 9f1e655979b9..ca376e7d716a 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -969,7 +969,6 @@ static int ext4_mb_get_buddy_page_lock(struct super_block *sb,
 
 	block++;
 	pnum = block / blocks_per_page;
-	poff = block % blocks_per_page;
 	page = find_or_create_page(inode->i_mapping, pnum, GFP_NOFS);
 	if (!page)
 		return -EIO;