linux-kernel - Re: [PATCH 2/2] mm/memory_failure: constify static mm_walk

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Date:   Fri, 15 Oct 2021 09:47:39 +0900
From:   Naoya Horiguchi <naoya.horiguchi@...ux.dev>
To:     Rikard Falkeborn <rikard.falkeborn@...il.com>
Cc:     SeongJae Park <sj@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Naoya Horiguchi <naoya.horiguchi@....com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] mm/memory_failure: constify static mm_walk_ops

On Thu, Oct 14, 2021 at 09:50:42AM +0200, Rikard Falkeborn wrote:
> The only usage of hwp_walk_ops is to pass its address to
> walk_page_range() which takes a pointer to const mm_walk_ops as
> argument. Make it const to allow the compiler to put it in read-only
> memory.
> 
> Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>

Acked-by: Naoya Horiguchi <naoya.horiguchi@....com>