From 08da757d3f29e9d33480ae1c44b557a2514d70c5 Mon Sep 17 00:00:00 2001
From: Zhao Lei <zhaolei@cn.fujitsu.com>
Date: Thu, 12 Feb 2015 15:42:16 +0800
Subject: [PATCH] btrfs: cleanup: use for() loop in btrfs_map_bio()

for() is obviously better in these code block, and remove noused
init-value to reduce about 6 bytes binary size.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: David Sterba <dsterba@suse.cz>
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Reading git-format-patch failed