The patch titled
Subject: arch, mm: wire up memfd_secret system call were relevant
has been added to the -mm tree. Its filename is
arch-mm-wire-up-memfd_secret-system-call-were-relevant.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/arch-mm-wire-up-memfd_secret-system-call-were-relevant.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/arch-mm-wire-up-memfd_secret-system-call-were-relevant.patch
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The -mm tree is included into linux-next and is updated
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------------------------------------------------------
From: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Subject: arch, mm: wire up memfd_secret system call were relevant
Wire up memfd_secret system call on architectures that define
ARCH_HAS_SET_DIRECT_MAP, namely arm64, risc-v and x86.
Link: https://lkml.kernel.org/r/20200916073539.3552-5-rppt@xxxxxxxxxx
Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Acked-by: Palmer Dabbelt <palmerdabbelt@xxxxxxxxxx>
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Christopher Lameter <cl@xxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Elena Reshetova <elena.reshetova@xxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Idan Yaniv <idan.yaniv@xxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: James Bottomley <jejb@xxxxxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill@xxxxxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Michael Kerrisk <mtk.manpages@xxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Tycho Andersen <tycho@xxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm64/include/asm/unistd.h | 2 +-
arch/arm64/include/asm/unistd32.h | 2 ++
arch/arm64/include/uapi/asm/unistd.h | 1 +
arch/riscv/include/asm/unistd.h | 1 +
arch/x86/entry/syscalls/syscall_32.tbl | 1 +
arch/x86/entry/syscalls/syscall_64.tbl | 1 +
include/linux/syscalls.h | 1 +
include/uapi/asm-generic/unistd.h | 7 ++++++-
8 files changed, 14 insertions(+), 2 deletions(-)
--- a/arch/arm64/include/asm/unistd32.h~arch-mm-wire-up-memfd_secret-system-call-were-relevant
+++ a/arch/arm64/include/asm/unistd32.h
@@ -887,6 +887,8 @@ __SYSCALL(__NR_openat2, sys_openat2)
__SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd)
#define __NR_faccessat2 439
__SYSCALL(__NR_faccessat2, sys_faccessat2)
+#define __NR_memfd_secret 440
+__SYSCALL(__NR_memfd_secret, sys_memfd_secret)
/*
* Please add new compat syscalls above this comment and update
--- a/arch/arm64/include/asm/unistd.h~arch-mm-wire-up-memfd_secret-system-call-were-relevant
+++ a/arch/arm64/include/asm/unistd.h
@@ -38,7 +38,7 @@
#define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE + 5)
#define __ARM_NR_COMPAT_END (__ARM_NR_COMPAT_BASE + 0x800)
-#define __NR_compat_syscalls 440
+#define __NR_compat_syscalls 441
#endif
#define __ARCH_WANT_SYS_CLONE
--- a/arch/arm64/include/uapi/asm/unistd.h~arch-mm-wire-up-memfd_secret-system-call-were-relevant
+++ a/arch/arm64/include/uapi/asm/unistd.h
@@ -20,5 +20,6 @@
#define __ARCH_WANT_SET_GET_RLIMIT
#define __ARCH_WANT_TIME32_SYSCALLS
#define __ARCH_WANT_SYS_CLONE3
+#define __ARCH_WANT_MEMFD_SECRET
#include <asm-generic/unistd.h>
--- a/arch/riscv/include/asm/unistd.h~arch-mm-wire-up-memfd_secret-system-call-were-relevant
+++ a/arch/riscv/include/asm/unistd.h
@@ -9,6 +9,7 @@
*/
#define __ARCH_WANT_SYS_CLONE
+#define __ARCH_WANT_MEMFD_SECRET
#include <uapi/asm/unistd.h>
--- a/arch/x86/entry/syscalls/syscall_32.tbl~arch-mm-wire-up-memfd_secret-system-call-were-relevant
+++ a/arch/x86/entry/syscalls/syscall_32.tbl
@@ -444,3 +444,4 @@
437 i386 openat2 sys_openat2
438 i386 pidfd_getfd sys_pidfd_getfd
439 i386 faccessat2 sys_faccessat2
+440 i386 memfd_secret sys_memfd_secret
--- a/arch/x86/entry/syscalls/syscall_64.tbl~arch-mm-wire-up-memfd_secret-system-call-were-relevant
+++ a/arch/x86/entry/syscalls/syscall_64.tbl
@@ -361,6 +361,7 @@
437 common openat2 sys_openat2
438 common pidfd_getfd sys_pidfd_getfd
439 common faccessat2 sys_faccessat2
+440 common memfd_secret sys_memfd_secret
#
# x32-specific system call numbers start at 512 to avoid cache impact
--- a/include/linux/syscalls.h~arch-mm-wire-up-memfd_secret-system-call-were-relevant
+++ a/include/linux/syscalls.h
@@ -1006,6 +1006,7 @@ asmlinkage long sys_pidfd_send_signal(in
siginfo_t __user *info,
unsigned int flags);
asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
+asmlinkage long sys_memfd_secret(unsigned long flags);
/*
* Architecture-specific system calls
--- a/include/uapi/asm-generic/unistd.h~arch-mm-wire-up-memfd_secret-system-call-were-relevant
+++ a/include/uapi/asm-generic/unistd.h
@@ -860,8 +860,13 @@ __SYSCALL(__NR_pidfd_getfd, sys_pidfd_ge
#define __NR_faccessat2 439
__SYSCALL(__NR_faccessat2, sys_faccessat2)
+#ifdef __ARCH_WANT_MEMFD_SECRET
+#define __NR_memfd_secret 440
+__SYSCALL(__NR_memfd_secret, sys_memfd_secret)
+#endif
+
#undef __NR_syscalls
-#define __NR_syscalls 440
+#define __NR_syscalls 441
/*
* 32 bit systems traditionally used different
_
Patches currently in -mm which might be from rppt@xxxxxxxxxxxxx are
mm-account-pmd-tables-like-pte-tables-fix.patch
kvm-ppc-book3s-hv-simplify-kvm_cma_reserve.patch
dma-contiguous-simplify-cma_early_percent_memory.patch
arm-xtensa-simplify-initialization-of-high-memory-pages.patch
arm64-numa-simplify-dummy_numa_init.patch
h8300-nds32-openrisc-simplify-detection-of-memory-extents.patch
riscv-drop-unneeded-node-initialization.patch
mircoblaze-drop-unneeded-numa-and-sparsemem-initializations.patch
memblock-make-for_each_memblock_type-iterator-private.patch
memblock-make-memblock_debug-and-related-functionality-private.patch
memblock-reduce-number-of-parameters-in-for_each_mem_range.patch
arch-mm-replace-for_each_memblock-with-for_each_mem_pfn_range.patch
arch-drivers-replace-for_each_membock-with-for_each_mem_range.patch
arch-drivers-replace-for_each_membock-with-for_each_mem_range-fix-2.patch
x86-setup-simplify-initrd-relocation-and-reservation.patch
x86-setup-simplify-reserve_crashkernel.patch
memblock-remove-unused-memblock_mem_size.patch
memblock-implement-for_each_reserved_mem_region-using-__next_mem_region.patch
memblock-use-separate-iterators-for-memory-and-reserved-regions.patch
mm-add-definition-of-pmd_page_order.patch
mmap-make-mlock_future_check-global.patch
mm-introduce-memfd_secret-system-call-to-create-secret-memory-areas.patch
arch-mm-wire-up-memfd_secret-system-call-were-relevant.patch
mm-secretmem-use-pmd-size-pages-to-amortize-direct-map-fragmentation.patch
