[RFC PATCH for 4.15 v12 00/22] Restartable sequences and CPU op vector
From: Mathieu Desnoyers
Date: Tue Nov 21 2017 - 09:19:29 EST
Hi,
Following changes based on a thorough coding style and patch changelog
review from Thomas Gleixner and Peter Zijlstra, I'm respinning this
series for another RFC.
This series contains:
- Restartable sequences system call (x86 32/64, powerpc 32/64, arm 32),
- CPU operation vector system call (x86 32/64, powerpc 32/64, arm 32),
- membarrier shared expedited command.
Compared to v11, I've removed the "sync core" membarrier command,
now queued for 4.16.
I have also fixed a missing page fault-in in cpu_opv, and added
a selftest test-case to cover this.
This series applies on top of current Linus' master as of
commit e1d1ea549b57 "Merge tag 'fbdev-v4.15' of git://github.com/bzolnier/linux"
The git tag including this series can be found at
https://git.kernel.org/pub/scm/linux/kernel/git/rseq/linux-rseq.git
tag: v4.14+-rseq-20171121
Thanks,
Mathieu
Boqun Feng (2):
powerpc: Add support for restartable sequences
powerpc: Wire up restartable sequences system call
Mathieu Desnoyers (20):
uapi headers: Provide types_32_64.h
rseq: Introduce restartable sequences system call (v12)
arm: Add restartable sequences support
arm: Wire up restartable sequences system call
x86: Add support for restartable sequences
x86: Wire up restartable sequence system call
sched: Implement push_task_to_cpu
cpu_opv: Provide cpu_opv system call (v4)
x86: Wire up cpu_opv system call
powerpc: Wire up cpu_opv system call
arm: Wire up cpu_opv system call
cpu_opv: selftests: Implement selftests (v3)
rseq: selftests: Provide self-tests (v3)
rseq: selftests: arm: workaround gcc asm size guess
Fix: membarrier: add missing preempt off around smp_call_function_many
membarrier: selftest: Test private expedited cmd (v2)
powerpc: membarrier: Skip memory barrier in switch_mm() (v7)
membarrier: Document scheduler barrier requirements (v5)
membarrier: provide SHARED_EXPEDITED command (v2)
membarrier: selftest: Test shared expedited cmd
MAINTAINERS | 21 +
arch/Kconfig | 7 +
arch/arm/Kconfig | 1 +
arch/arm/kernel/signal.c | 7 +
arch/arm/tools/syscall.tbl | 2 +
arch/powerpc/Kconfig | 2 +
arch/powerpc/include/asm/membarrier.h | 26 +
arch/powerpc/include/asm/systbl.h | 2 +
arch/powerpc/include/asm/unistd.h | 2 +-
arch/powerpc/include/uapi/asm/unistd.h | 2 +
arch/powerpc/kernel/signal.c | 3 +
arch/powerpc/mm/mmu_context.c | 7 +
arch/x86/Kconfig | 1 +
arch/x86/entry/common.c | 1 +
arch/x86/entry/syscalls/syscall_32.tbl | 2 +
arch/x86/entry/syscalls/syscall_64.tbl | 2 +
arch/x86/kernel/signal.c | 6 +
arch/x86/mm/tlb.c | 5 +
fs/exec.c | 1 +
include/linux/sched.h | 102 ++
include/linux/sched/mm.h | 21 +-
include/linux/syscalls.h | 6 +
include/trace/events/rseq.h | 56 +
include/uapi/linux/cpu_opv.h | 114 ++
include/uapi/linux/membarrier.h | 34 +-
include/uapi/linux/rseq.h | 141 +++
include/uapi/linux/types_32_64.h | 67 +
init/Kconfig | 31 +
kernel/Makefile | 2 +
kernel/cpu_opv.c | 1060 ++++++++++++++++
kernel/fork.c | 2 +
kernel/rseq.c | 338 +++++
kernel/sched/core.c | 88 +-
kernel/sched/membarrier.c | 125 +-
kernel/sched/sched.h | 9 +
kernel/sys_ni.c | 4 +
tools/testing/selftests/Makefile | 2 +
tools/testing/selftests/cpu-opv/.gitignore | 1 +
tools/testing/selftests/cpu-opv/Makefile | 17 +
.../testing/selftests/cpu-opv/basic_cpu_opv_test.c | 1189 ++++++++++++++++++
tools/testing/selftests/cpu-opv/cpu-op.c | 348 ++++++
tools/testing/selftests/cpu-opv/cpu-op.h | 68 ++
tools/testing/selftests/lib.mk | 4 +
.../testing/selftests/membarrier/membarrier_test.c | 162 ++-
tools/testing/selftests/rseq/.gitignore | 4 +
tools/testing/selftests/rseq/Makefile | 23 +
.../testing/selftests/rseq/basic_percpu_ops_test.c | 333 +++++
tools/testing/selftests/rseq/basic_test.c | 55 +
tools/testing/selftests/rseq/param_test.c | 1285 ++++++++++++++++++++
tools/testing/selftests/rseq/rseq-arm.h | 568 +++++++++
tools/testing/selftests/rseq/rseq-ppc.h | 567 +++++++++
tools/testing/selftests/rseq/rseq-x86.h | 898 ++++++++++++++
tools/testing/selftests/rseq/rseq.c | 116 ++
tools/testing/selftests/rseq/rseq.h | 154 +++
tools/testing/selftests/rseq/run_param_test.sh | 124 ++
55 files changed, 8166 insertions(+), 52 deletions(-)
create mode 100644 arch/powerpc/include/asm/membarrier.h
create mode 100644 include/trace/events/rseq.h
create mode 100644 include/uapi/linux/cpu_opv.h
create mode 100644 include/uapi/linux/rseq.h
create mode 100644 include/uapi/linux/types_32_64.h
create mode 100644 kernel/cpu_opv.c
create mode 100644 kernel/rseq.c
create mode 100644 tools/testing/selftests/cpu-opv/.gitignore
create mode 100644 tools/testing/selftests/cpu-opv/Makefile
create mode 100644 tools/testing/selftests/cpu-opv/basic_cpu_opv_test.c
create mode 100644 tools/testing/selftests/cpu-opv/cpu-op.c
create mode 100644 tools/testing/selftests/cpu-opv/cpu-op.h
create mode 100644 tools/testing/selftests/rseq/.gitignore
create mode 100644 tools/testing/selftests/rseq/Makefile
create mode 100644 tools/testing/selftests/rseq/basic_percpu_ops_test.c
create mode 100644 tools/testing/selftests/rseq/basic_test.c
create mode 100644 tools/testing/selftests/rseq/param_test.c
create mode 100644 tools/testing/selftests/rseq/rseq-arm.h
create mode 100644 tools/testing/selftests/rseq/rseq-ppc.h
create mode 100644 tools/testing/selftests/rseq/rseq-x86.h
create mode 100644 tools/testing/selftests/rseq/rseq.c
create mode 100644 tools/testing/selftests/rseq/rseq.h
create mode 100755 tools/testing/selftests/rseq/run_param_test.sh
--
2.11.0