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Re: [PATCH v4 00/16] MADV_FREE support

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Hi Andrew,

On Tue, Nov 24, 2015 at 01:58:51PM -0800, Andrew Morton wrote:
> 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?

No problem at all.

> 
> 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?
> 

That's really what we(Daniel, Michael and me) want so far.
A people who is reluctant to it is Johannes who wanted to support
MADV_FREE on swapless system via new LRU from the beginning.

If Johannes is not strong against Andrew's plan, I will resend
new patchset(ie, not including new stuff) based on next -mmotm.

Hannes?
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[PATCH v4 00/16] MADV_FREE support Minchan Kim <minchan@kernel.org> - 2015-11-20 09:10 +0100
  [PATCH v4 02/16] mm: define MADV_FREE for some arches Minchan Kim <minchan@kernel.org> - 2015-11-20 09:10 +0100
  [PATCH v4 01/16] mm: support madvise(MADV_FREE) Minchan Kim <minchan@kernel.org> - 2015-11-20 09:10 +0100
  Re: [PATCH v4 00/16] MADV_FREE support Andrew Morton <akpm@linux-foundation.org> - 2015-11-24 23:00 +0100
    Re: [PATCH v4 00/16] MADV_FREE support Minchan Kim <minchan@kernel.org> - 2015-11-25 04:00 +0100
      Re: [PATCH v4 00/16] MADV_FREE support Johannes Weiner <hannes@cmpxchg.org> - 2015-11-25 18:40 +0100

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