Here is the last RFC round of the updated rseq patchset containing: - 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, and private expedited core serializing commands. This is *not* yet a PR. I'm submitting the patchset as RFC one last time given that I did a few small fixes, and reordered the patchset, since the last time I sent it as RFC. You can alternatively find this patchset as a git branch at this location: https://git.kernel.org/pub/scm/linux/kernel/git/rseq/linux-rseq.git branch: v4.14-rseq-20171114 Orion Hodson is currently testing the private expedited core serializing membarrier command on Android, where they have a context synchronization issue reproducer on arm 64. We should know more about this shortly. Thanks, Mathieu Boqun Feng (2): Restartable sequences: powerpc architecture support Restartable sequences: Wire up powerpc system call Mathieu Desnoyers (22): Restartable sequences system call (v11) Restartable sequences: ARM 32 architecture support Restartable sequences: wire up ARM 32 system call Restartable sequences: x86 32/64 architecture support Restartable sequences: wire up x86 32/64 system call Provide cpu_opv system call (v3) cpu_opv: Wire up x86 32/64 system call cpu_opv: Wire up powerpc system call cpu_opv: Wire up ARM32 system call cpu_opv: Implement selftests (v2) Restartable sequences: Provide self-tests (v2) Restartable sequences selftests: arm: workaround gcc asm size guess membarrier: selftest: Test private expedited cmd (v2) membarrier: powerpc: Skip memory barrier in switch_mm() (v7) membarrier: Document scheduler barrier requirements (v5) membarrier: provide SHARED_EXPEDITED command membarrier: selftest: Test shared expedited cmd membarrier: Provide core serializing command x86: Introduce sync_core_before_usermode (v2) membarrier: x86: Provide core serializing command (v2) membarrier: selftest: Test private expedited sync core cmd membarrier: arm64: Provide core serializing command MAINTAINERS | 21 + arch/Kconfig | 7 + arch/arm/Kconfig | 1 + arch/arm/kernel/signal.c | 7 + arch/arm/tools/syscall.tbl | 2 + arch/arm64/Kconfig | 1 + arch/arm64/kernel/entry.S | 4 + 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 | 3 + arch/x86/entry/common.c | 1 + arch/x86/entry/entry_32.S | 5 + arch/x86/entry/entry_64.S | 8 + arch/x86/entry/syscalls/syscall_32.tbl | 2 + arch/x86/entry/syscalls/syscall_64.tbl | 2 + arch/x86/include/asm/processor.h | 10 + arch/x86/kernel/signal.c | 6 + arch/x86/mm/tlb.c | 6 + fs/exec.c | 1 + include/linux/processor.h | 6 + include/linux/sched.h | 89 ++ include/linux/sched/mm.h | 39 +- include/trace/events/rseq.h | 60 + include/uapi/linux/cpu_opv.h | 117 ++ include/uapi/linux/membarrier.h | 66 +- include/uapi/linux/rseq.h | 138 +++ init/Kconfig | 37 + kernel/Makefile | 2 + kernel/cpu_opv.c | 968 +++++++++++++++ kernel/fork.c | 2 + kernel/rseq.c | 328 +++++ kernel/sched/core.c | 95 +- kernel/sched/membarrier.c | 169 ++- kernel/sched/sched.h | 2 + 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 | 1157 ++++++++++++++++++ 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 | 235 +++- 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 ++ 59 files changed, 8149 insertions(+), 63 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 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 -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
