[PATCH] loongarch: wire up memfd_secret system call

[Mike Rapoport]

On Fri, Jan 09, 2026 at 01:10:51PM +0800, Lain Fearyncess Yang wrote:
> From: "Lain \"Fearyncess\" Yang" <fearyncess at 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?
 
> Signed-off-by: Lain "Fearyncess" Yang <fearyncess at 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.