From: Huacai Chen <chenhuacai@kernel.org>
To: Mike Rapoport <rppt@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
Date: Sun, 25 Jan 2026 12:03:25 +0800 [thread overview]
Message-ID: <CAAhV-H5tHZRHmXSA6m+fyhaN9nNjLFbEiVK7OWjL8EoJn16doQ@mail.gmail.com> (raw)
In-Reply-To: <aWC6bIEg6UqvX1DO@kernel.org>
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.
Huacai
>
> > Signed-off-by: Lain "Fearyncess" Yang <fearyncess@aosc.io>
> > ---
> > arch/loongarch/include/asm/unistd.h | 1 +
> > arch/loongarch/kernel/Makefile.syscalls | 6 +++---
> > tools/testing/selftests/mm/Makefile | 2 +-
> > 3 files changed, 5 insertions(+), 4 deletions(-)
>
> --
> Sincerely yours,
> Mike.
next prev parent reply other threads:[~2026-01-25 4:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-09 5:10 Lain Fearyncess Yang
2026-01-09 6:45 ` Arnd Bergmann
2026-01-09 8:21 ` Mike Rapoport
2026-01-25 4:03 ` Huacai Chen [this message]
2026-01-25 9:58 ` Mike Rapoport
2026-01-09 13:28 ` David Hildenbrand (Red Hat)
2026-01-25 4:03 ` Huacai Chen
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