Re: [PATCH 2/2] radix-tree: Fix optimisation problem

From: Linus Torvalds
Date: Sat Sep 24 2016 - 18:54:30 EST

On Sat, Sep 24, 2016 at 2:04 PM, Kirill A. Shutemov
<kirill.shutemov@xxxxxxxxxxxxxxx> wrote:
> Well, my ext4-with-huge-pages patchset[1] uses multi-order entries.
> It also converts shmem-with-huge-pages and hugetlb to them.

Ok, so that code actually has a chance of being used. I guess we'll
not remove it. But I *would* like this subtle issue to have a comment
around that odd cast/and/mask thing.