linux-kernel - Re: [mm PATCH v6 6/7] mm: Add reserved flag setting to set_page

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Message-Id: <20190313093306.c4b49c6d062f506a967f843d@linux-foundation.org>
Date:   Wed, 13 Mar 2019 09:33:06 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Alexander Duyck <alexander.h.duyck@...ux.intel.com>
Cc:     Michal Hocko <mhocko@...nel.org>, linux-mm@...ck.org,
        sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-nvdimm@...ts.01.org, davem@...emloft.net,
        pavel.tatashin@...rosoft.com, mingo@...nel.org,
        kirill.shutemov@...ux.intel.com, dan.j.williams@...el.com,
        dave.jiang@...el.com, rppt@...ux.vnet.ibm.com, willy@...radead.org,
        vbabka@...e.cz, khalid.aziz@...cle.com, ldufour@...ux.vnet.ibm.com,
        mgorman@...hsingularity.net, yi.z.zhang@...ux.intel.com
Subject: Re: [mm PATCH v6 6/7] mm: Add reserved flag setting to
 set_page_links

On Tue, 12 Mar 2019 15:50:36 -0700 Alexander Duyck <alexander.h.duyck@...ux.intel.com> wrote:

> On Tue, 2019-03-12 at 15:07 -0700, Andrew Morton wrote:
> > On Wed, 5 Dec 2018 21:42:47 +0100 Michal Hocko <mhocko@...nel.org> wrote:
> > 
> > > > I got your explanation. However Andrew had already applied the patches
> > > > and I had some outstanding issues in them that needed to be addressed.
> > > > So I thought it best to send out this set of patches with those fixes
> > > > before the code in mm became too stale. I am still working on what to
> > > > do about the Reserved bit, and plan to submit it as a follow-up set.
> > > > From my experience Andrew can drop patches between different versions of
> > > the patchset. Things can change a lot while they are in mmotm and under
> > > the discussion.
> > 
> > It's been a while and everyone has forgotten everything, so I'll drop
> > this version of the patchset.
> > 
> 
> As far as getting to the reserved bit I probably won't have the time in
> the near future. If I were to resubmit the first 4 patches as a
> standalone patch set would that be acceptable, or would they be held up
> as well until the reserved bit issues is addressed?
> 

Yes, I think that merging the first four will be OK.  As long as they
don't add some bug which [5/5] corrects, which happens sometimes!

Please redo, retest and resend sometime?