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Subject: Re: [PATCH v2 1/3] mm/memory-failure: userspace controls
 soft-offlining pages
To: Oscar Salvador <osalvador@suse.de>, Jiaqi Yan <jiaqiyan@google.com>, Lance
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From: Miaohe Lin <linmiaohe@huawei.com>
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Date: Mon, 17 Jun 2024 16:16:51 +0800
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On 2024/6/17 15:51, Oscar Salvador wrote:
> On 2024-06-17 09:31, Miaohe Lin wrote:
> 
>> IMHO, it might not be suitable to use EAGAIN. Because it means
>> "Resource temporarily unavailable" and
>> this can be solved by simply retry later without any further actions
>> taken. But I might be wrong.
> 
> We usually use 'EOPNOTSUPP' when we fail due to a setting not being set.
> EPERM is more for a capability matter.

Thanks Oscar. So we should return EOPNOTSUPP here.

Thanks.
.