Re: [PATCH v4 00/16] MADV_FREE support

Andrew Morton
2015-11-24T21:58:54Z

On Fri, 20 Nov 2015 17:02:32 +0900 Minchan Kim <minchan@kernel.org> wrote:

> I have been spent a lot of time to land MADV_FREE feature
> by request of userland people(esp, Daniel and Jason, jemalloc guys.

A couple of things...

There's a massive and complex reject storm against Kirill's page-flags
and thp changes. The problems in hugetlb.c are more than I can
reasonably fix up, sorry. How would you feel about redoing the patches
against next -mm?

Secondly, "mm: introduce lazyfree LRU list" and "mm: support MADV_FREE
on swapless system" are new, and require significant reviewer
attention. But there's so much other stuff flying around that I doubt
if we'll get effective review. So perhaps it would be best to shelve
those new things and introduce them later, after the basic old
MADV_FREE work has settled in?