Re: cleanup the walk_page_range interface

From: Steven Price
Date: Wed Aug 28 2019 - 09:24:02 EST

On 28/08/2019 00:36, Jason Gunthorpe wrote:
> On Tue, Aug 27, 2019 at 04:34:31PM -0700, Andrew Morton wrote:
>> On Tue, 27 Aug 2019 01:34:13 +0000 Jason Gunthorpe <jgg@xxxxxxxxxxxx> wrote:
>>> On Sat, Aug 24, 2019 at 03:26:55PM -0700, Christoph Hellwig wrote:
>>>> On Fri, Aug 23, 2019 at 01:43:12PM +0000, Jason Gunthorpe wrote:
>>>>>> So what is the plan forward? Probably a little late for 5.3,
>>>>>> so queue it up in -mm for 5.4 and deal with the conflicts in at least
>>>>>> hmm? Queue it up in the hmm tree even if it doesn't 100% fit?
>>>>> Did we make a decision on this? Due to travel & LPC I'd like to
>>>>> finalize the hmm tree next week.
>>>> I don't think we've made any decision. I'd still love to see this
>>>> in hmm.git. It has a minor conflict, but I can resend a rebased
>>>> version.
>>> I'm looking at this.. The hmm conflict is easy enough to fix.
>>> But the compile conflict with these two patches in -mm requires some
>>> action from Andrew:
>>> commit 027b9b8fd9ee3be6b7440462102ec03a2d593213
>>> Author: Minchan Kim <minchan@xxxxxxxxxx>
>>> Date: Sun Aug 25 11:49:27 2019 +1000
>>> mm: introduce MADV_PAGEOUT
>>> commit f227453a14cadd4727dd159782531d617f257001
>>> Author: Minchan Kim <minchan@xxxxxxxxxx>
>>> Date: Sun Aug 25 11:49:27 2019 +1000
>>> mm: introduce MADV_COLD
>>> Patch series "Introduce MADV_COLD and MADV_PAGEOUT", v7.
>>> I'm inclined to suggest you send this series in the 2nd half of the
>>> merge window after this MADV stuff lands for least disruption?
>> Just merge it, I'll figure it out. Probably by staging Minchan's
>> patches after linux-next.
> Okay, I'll get it on a branch and merge it toward hmm.git tomorrow
> Steven, do you need the branch as well for your patch series? Let me know

Since my series is (mostly) just refactoring I'm planning on rebasing it
after -rc1 and aim for v5.4 - I don't really have the time just now to
do that.

But please keep me in the loop because it'll reduce the surprises when I
do do the rebase.