linux-kernel - Re: [PATCH] mempolicy: check home

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Message-Id: <20240128002942.b0dbede1fcc4b80d2a398d15@linux-foundation.org>
Date: Sun, 28 Jan 2024 00:29:42 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Chunsheng Luo <luochunsheng@...c.edu>
Cc: linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mempolicy: check home_node is in the nodes of policy

On Fri, 26 Jan 2024 08:22:40 -0500 Chunsheng Luo <luochunsheng@...c.edu> wrote:

> set_mempolicy_home_node should be used after setting the memory
> policy. If the home_node isn't in the nodes of policy, we should
> return failure to avoid misunderstanding.

Thanks.  Under what circumstances does userspace trigger this issue?