From: Zheng Liu <gnehzuil.liu@gmail.com>
Date: Mon, 28 May 2012 21:53:53 +0000 (-0400)
Subject: ext4: cleanup in ext4_discard_allocated_blocks()
X-Git-Tag: firefly_0821_release~3680^2~2694^2~11
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=400db9d30146dc062aaba97a6301b425eb6015bc;p=firefly-linux-kernel-4.4.55.git

ext4: cleanup in ext4_discard_allocated_blocks()

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>
---

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 45cb31e8dd27..e4b4ac1ec684 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3073,13 +3073,9 @@ 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;
 }
 
 /*