Btrfs: cleanup warnings from gcc 4.6 (nonbugs)

These are all the cases where a variable is set, but not read which are
not bugs as far as I can see, but simply leftovers.

Still needs more review.

Found by gcc 4.6's new warnings

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 0 insertions, 4 deletions

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 28681e729b1d..91851b555e2e 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1901,7 +1901,6 @@ int btrfs_balance(struct btrfs_root *dev_root)
         u64 size_to_free;
         struct btrfs_path *path;
         struct btrfs_key key;
-        struct btrfs_chunk *chunk;
         struct btrfs_root *chunk_root = dev_root->fs_info->chunk_root;
         struct btrfs_trans_handle *trans;
         struct btrfs_key found_key;
@@ -1965,9 +1964,6 @@ int btrfs_balance(struct btrfs_root *dev_root)
                 if (found_key.objectid != key.objectid)
                         break;
 
-                chunk = btrfs_item_ptr(path->nodes[0],
-                                       path->slots[0],
-                                       struct btrfs_chunk);
                 /* chunk zero is special */
                 if (found_key.offset == 0)
                         break;