linux-kernel - Re: [PATCH v2 1/1] mm: do not increment pgfault stats when page fault handler retries

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Message-ID: <CAJuCfpG8+99WpKfZ0skd50P3PUrQ80KuNyJoyCy4dkWybYLR9Q@mail.gmail.com>
Date:   Wed, 19 Apr 2023 11:00:10 -0700
From:   Suren Baghdasaryan <surenb@...gle.com>
To:     Peter Xu <peterx@...hat.com>
Cc:     Matthew Wilcox <willy@...radead.org>, akpm@...ux-foundation.org,
        hannes@...xchg.org, mhocko@...e.com, josef@...icpanda.com,
        jack@...e.cz, ldufour@...ux.ibm.com, laurent.dufour@...ibm.com,
        michel@...pinasse.org, liam.howlett@...cle.com, jglisse@...gle.com,
        vbabka@...e.cz, minchan@...gle.com, dave@...olabs.net,
        punit.agrawal@...edance.com, lstoakes@...il.com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        kernel-team@...roid.com
Subject: Re: [PATCH v2 1/1] mm: do not increment pgfault stats when page fault
 handler retries

On Tue, Apr 18, 2023 at 4:38 PM Peter Xu <peterx@...hat.com> wrote:
>
> On Tue, Apr 18, 2023 at 03:58:26PM -0700, Suren Baghdasaryan wrote:
> > Sure. How about replacing my prior "Register both successful and
> > failed faults in PGFAULT counters." comment with "To preserve the
> > behavior of older kernels, PGFAULT counters record both successful and
> > failed faults, as opposed to perf counters which ignore failed cases"
>
> Looks good here, thanks!

v3 is posted at:
https://lore.kernel.org/all/20230419175836.3857458-1-surenb@google.com/
Thanks!

>
> --
> Peter Xu
>
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