From 6f98bebd1045df37a8c7ab1c43b82a0937c2e87f Mon Sep 17 00:00:00 2001
From: Zheng Liu <gnehzuil.liu@gmail.com>
Date: Mon, 28 May 2012 17:53:53 -0400
Subject: ext4: cleanup in ext4_discard_allocated_blocks()

commit 400db9d30146dc062aaba97a6301b425eb6015bc upstream.

remove 'len' variable in ext4_discard_allocated_blocks() because it is
useless.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
 fs/ext4/mballoc.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

(limited to 'fs/ext4')

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 7168eebd663c..3939d1a7e67e 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3128,13 +3128,9 @@ static void ext4_mb_collect_stats(struct ext4_allocation_context *ac)
 static void ext4_discard_allocated_blocks(struct ext4_allocation_context *ac)
 {
 	struct ext4_prealloc_space *pa = ac->ac_pa;
-	int len;
-
-	if (pa && pa->pa_type == MB_INODE_PA) {
-		len = ac->ac_b_ex.fe_len;
-		pa->pa_free += len;
-	}
 
+	if (pa && pa->pa_type == MB_INODE_PA)
+		pa->pa_free += ac->ac_b_ex.fe_len;
 }
 
 /*
-- 
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