linux-kernel - Re: [PATCH] proc: fix documentation and description of mmap

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Date:   Tue, 1 Mar 2022 11:59:38 +0800
From:   Peter Xu <peterx@...hat.com>
To:     Yun Zhou <yun.zhou@...driver.com>
Cc:     akpm@...ux-foundation.org, corbet@....net,
        tiberiu.georgescu@...anix.com, florian.schmidt@...anix.com,
        ivan.teterevkov@...anix.com, sj@...nel.org, shy828301@...il.com,
        david@...hat.com, axelrasmussen@...gle.com, linmiaohe@...wei.com,
        aarcange@...hat.com, ccross@...gle.com, apopple@...dia.com,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH] proc: fix documentation and description of mmap

On Tue, Mar 01, 2022 at 11:21:15AM +0800, Yun Zhou wrote:
> diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
> index 78125ef20255..75511f78075f 100644
> --- a/fs/proc/task_mmu.c
> +++ b/fs/proc/task_mmu.c
> @@ -1596,7 +1596,8 @@ static const struct mm_walk_ops pagemap_ops = {
>   * Bits 5-54  swap offset if swapped
>   * Bit  55    pte is soft-dirty (see Documentation/admin-guide/mm/soft-dirty.rst)
>   * Bit  56    page exclusively mapped
> - * Bits 57-60 zero
> + * Bit  57    pte is uffd-wp write-protected (since 5.13) (see
                                                ^^^^^^^^^^^^^^^^^ remove these?

Thanks,

-- 
Peter Xu