linux-kernel - Re: [PATCH RFC] KVM: Use maple tree to manage memory attributes.

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Message-ID: <ZsdgVoBxh9qe2Fjs@casper.infradead.org>
Date: Thu, 22 Aug 2024 16:59:18 +0100
From: Matthew Wilcox <willy@...radead.org>
To: Peng Zhang <zhangpeng.00@...edance.com>
Cc: pbonzini@...hat.com, chao.p.peng@...ux.intel.com, seanjc@...gle.com,
	Liam.Howlett@...cle.com, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org, maple-tree@...ts.infradead.org
Subject: Re: [PATCH RFC] KVM: Use maple tree to manage memory attributes.

On Thu, Aug 22, 2024 at 02:55:44PM +0800, Peng Zhang wrote:
> +	mt_init_flags(&kvm->mem_attr_mtree, MT_FLAGS_LOCK_EXTERN);

using an external lock is a HACK.  it should go away, not be mindlessly
propagated.