Re: [PATCH v33 1/4] mm: add a function to get free page blocks

From: Linus Torvalds
Date: Fri Jun 15 2018 - 19:09:14 EST

On Fri, Jun 15, 2018 at 2:08 PM Wei Wang <> wrote:
> This patch adds a function to get free pages blocks from a free page
> list. The obtained free page blocks are hints about free pages, because
> there is no guarantee that they are still on the free page list after
> the function returns.

Ack. This is the kind of simple interface where I don't need to worry
about the MM code calling out to random drivers or subsystems.

I think that "order" should be checked for validity, but from a MM
standpoint I think this is fine.