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Date: Sun, 25 Jan 2026 11:58:58 +0200
From: Mike Rapoport <rppt@kernel.org>
To: Huacai Chen <chenhuacai@kernel.org>
Cc: Lain Fearyncess Yang <fearyncess@aosc.io>,
	WANG Xuerui <kernel@xen0n.name>, Kexy Biscuit <kexybiscuit@aosc.io>,
	Mingcong Bai <jeffbai@aosc.io>,
	Andrew Morton <akpm@linux-foundation.org>,
	David Hildenbrand <david@kernel.org>,
	Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
	"Liam R. Howlett" <Liam.Howlett@oracle.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>, Shuah Khan <shuah@kernel.org>,
	Paul Walmsley <pjw@kernel.org>, Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>, Alexandre Ghiti <alex@ghiti.fr>,
	Arnd Bergmann <arnd@arndb.de>,
	Jiaxun Yang <jiaxun.yang@flygoat.com>, loongarch@lists.linux.dev,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	linux-kselftest@vger.kernel.org, linux-riscv@lists.infradead.org
Subject: Re: [PATCH] loongarch: wire up memfd_secret system call
Message-ID: <aXXpYqDyTeftKV2c@kernel.org>
References: <20260109051054.188030-1-fearyncess@aosc.io>
 <aWC6bIEg6UqvX1DO@kernel.org>
 <CAAhV-H5tHZRHmXSA6m+fyhaN9nNjLFbEiVK7OWjL8EoJn16doQ@mail.gmail.com>
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On Sun, Jan 25, 2026 at 12:03:25PM +0800, Huacai Chen wrote:
> On Fri, Jan 9, 2026 at 4:21 PM Mike Rapoport <rppt@kernel.org> wrote:
> >
> > On Fri, Jan 09, 2026 at 01:10:51PM +0800, Lain Fearyncess Yang wrote:
> > > From: "Lain \"Fearyncess\" Yang" <fearyncess@aosc.io>
> > >
> > > LoongArch supports ARCH_HAS_SET_DIRECT_MAP, therefore wire up the
> > > memfd_secret system call, which depends on it.
> >
> > LoongArch version of set_memory* does not support splitting of leaf PMD
> > entries. Does LoongArch always use PTE-level mappings in the direct map?
> No PMD level mappings now.

Thanks for the clarification. You can add

Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>

if it's not too late :)

> Huacai

-- 
Sincerely yours,
Mike.