btrfs: heuristic: open code copy_call callback of radix sort

The callback is trivial and we don't need the abstraction for our
purposes. Let's open code it.

Reviewed-by: Timofey Titovets <nefelim4ag@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2017-12-12 20:35:02 +01:00
commit 7add17befc