Btrfs: Fix checkpatch.pl warnings

There were many, most are fixed now.  struct-funcs.c generates some warnings
but these are bogus.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/locking.c b/fs/btrfs/locking.c
index e30aa6e..39bae77 100644
--- a/fs/btrfs/locking.c
+++ b/fs/btrfs/locking.c
@@ -31,9 +31,10 @@
  * difference in almost every workload, but spinning for the right amount of
  * time needs some help.
  *
- * In general, we want to spin as long as the lock holder is doing btree searches,
- * and we should give up if they are in more expensive code.
+ * In general, we want to spin as long as the lock holder is doing btree
+ * searches, and we should give up if they are in more expensive code.
  */
+
 int btrfs_tree_lock(struct extent_buffer *eb)
 {
 	int i;