From d8e39c457bc1ca2a7304bc086c7b0f0c10854921 Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@oracle.com>
Date: Fri, 29 Oct 2010 15:17:41 -0400
Subject: [PATCH] Btrfs: drop unused variable in block_alloc_rsv

The alloc_target variable is not really used.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
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