Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18;
Date:   Wed, 30 Mar 2022 19:41:47 -0700
From:   Andrew Morton <akpm@linux-foundation.org>
To:     Muchun Song <songmuchun@bytedance.com>
Cc:     will@kernel.org, david@redhat.com, bodeddub@amazon.com,
        osalvador@suse.de, mike.kravetz@oracle.com, rientjes@google.com,
        mark.rutland@arm.com, catalin.marinas@arm.com, james.morse@arm.com,
        21cnbao@gmail.com, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        duanxiongchun@bytedance.com, fam.zheng@bytedance.com,
        smuchun@gmail.com
Subject: Re: [PATCH v3] arm64: mm: hugetlb: Enable HUGETLB_PAGE_FREE_VMEMMAP
 for arm64
Message-Id: <20220330194147.000c80ef35345397756e096e@linux-foundation.org>
In-Reply-To: <20220330145400.18565-1-songmuchun@bytedance.com>
References: <20220330145400.18565-1-songmuchun@bytedance.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Precedence: bulk

On Wed, 30 Mar 2022 22:54:00 +0800 Muchun Song <songmuchun@bytedance.com> wrote:

> --- a/fs/Kconfig
> +++ b/fs/Kconfig
> @@ -247,7 +247,7 @@ config HUGETLB_PAGE
>  
>  config HUGETLB_PAGE_FREE_VMEMMAP
>  	def_bool HUGETLB_PAGE
> -	depends on X86_64
> +	depends on X86_64 || ARM64

This list is just going to get longer, until someone goes and switches
it to use ARCH_WANT_HUGETLB_PAGE_FREE_VMEMMAP or whatever.  Why not do
that now?

>  	depends on SPARSEMEM_VMEMMAP