From 258ece02126a67af263746e1ae5f8ddf0d492e14 Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.cz>
Date: Tue, 24 Feb 2015 19:45:15 +0100
Subject: [PATCH] btrfs: remove shadowing variables in __btrfs_map_block

1) We can safely use the function's 'i'. Fixes warning

fs/btrfs/volumes.c:5257:7: warning: declaration of 'i' shadows a previous local
fs/btrfs/volumes.c:4951:6: warning: shadowed declaration is here

2) A local variable duplicates name of an argument, we can use the value
directly. Fixes warning

fs/btrfs/volumes.c:5433:8: warning: declaration of 'length' shadows a parameter
fs/btrfs/volumes.c:4935:27: warning: shadowed declaration is here

Signed-off-by: David Sterba <dsterba@suse.cz>
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