linux-kernel - Re: [PATCH] mm: memory-failure: Move memory failure sysctls to its own file

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Date:   Thu, 9 Mar 2023 14:03:39 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     HORIGUCHI NAOYA(堀口 直也) 
        <naoya.horiguchi@....com>
CC:     Luis Chamberlain <mcgrof@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Miaohe Lin <linmiaohe@...wei.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>
Subject: Re: [PATCH] mm: memory-failure: Move memory failure sysctls to its
 own file



On 2023/3/9 13:14, HORIGUCHI NAOYA(堀口 直也) wrote:
> On Thu, Mar 09, 2023 at 12:59:24PM +0800, Kefeng Wang wrote:
>> The sysctl_memory_failure_early_kill and memory_failure_recovery
>> are only used in memory-failure.c, move them to its own file.
> 
> Thank you for the patch.
> 
> Could you explain the benefit to move them?
> We seem to have many other parameters in kernel/sysctl.c which are used
> only in single places, so why do we handle these two differently?
> 

Actually, all of them need to be moved into theirs own file as required
by proc sysctl maintainer, see [1]

> Thanks,
> Naoya Horiguchi

[1] https://lore.kernel.org/all/20211123202347.818157-1-mcgrof@kernel.org/