[PATCH 00/12] radix-tree: split out struct radix_tree_root out to <linux/radix-tree-root.h>

[Matthew Wilcox]

On Tue, Oct 10, 2017 at 09:56:22PM +0900, Masahiro Yamada wrote:
> One refactoring alone does not produce much benefits,
> but making continuous efforts will disentangle the knotted threads.
> Of course, this might be a pipe dream...

A lot of people have had that dream, and some of those refactoring
efforts have proven worthwhile.  But it's not a dream without costs;
your refactoring will conflict with other changes.  I don't think the
benefit here is high enough to pursue this edition of the dream.