linux-kernel - Re: [PATCH v2 3/8] mm/gup: make __gup_longterm

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Message-ID: <CA+CK2bBbN9dxqD_ntAPACfjJmwahPEyP36cb7koVm212nzsuKw@mail.gmail.com>
Date:   Thu, 10 Dec 2020 13:57:20 -0500
From:   Pavel Tatashin <pasha.tatashin@...een.com>
To:     Ira Weiny <ira.weiny@...el.com>
Cc:     LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Michal Hocko <mhocko@...e.com>,
        David Hildenbrand <david@...hat.com>,
        Oscar Salvador <osalvador@...e.de>,
        Dan Williams <dan.j.williams@...el.com>,
        Sasha Levin <sashal@...nel.org>,
        Tyler Hicks <tyhicks@...ux.microsoft.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>, mike.kravetz@...cle.com,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>, Jason Gunthorpe <jgg@...pe.ca>,
        Peter Zijlstra <peterz@...radead.org>,
        Mel Gorman <mgorman@...e.de>,
        Matthew Wilcox <willy@...radead.org>,
        David Rientjes <rientjes@...gle.com>,
        John Hubbard <jhubbard@...dia.com>,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>
Subject: Re: [PATCH v2 3/8] mm/gup: make __gup_longterm_locked common

On Thu, Dec 10, 2020 at 12:44 PM Ira Weiny <ira.weiny@...el.com> wrote:
>
> On Thu, Dec 10, 2020 at 08:30:03AM -0500, Pavel Tatashin wrote:
> > On Wed, Dec 9, 2020 at 11:06 PM Ira Weiny <ira.weiny@...el.com> wrote:
> > >
> > > On Wed, Dec 09, 2020 at 07:43:30PM -0500, Pavel Tatashin wrote:
> > > > __gup_longterm_locked() has CMA || FS_DAX version and a common stub
> > > > version. In the preparation of prohibiting longterm pinning of pages from
> > > > movable zone make the CMA || FS_DAX version common, and delete the stub
> > > > version.
> > >
> > > I thought Jason sent a patch which got rid of this as well?
> >
> > Yes, this series applies on the mainline so it can be easily tested.
> > The next version, I will sync with linux-next.
>
> Oh yea we wanted this to be back-portable correct?
>
> If so, LGTM
>
> Reviewed-by: Ira Weiny <ira.weiny@...el.com>

Thank you. Yes, this series should be backported, but I am not sure
what to do about Jason's patch. Perhaps, in the next version I will
send out this series together with his patch.

Pasha

>
> Sorry for not keeping up,
> Ira