Hi, Here is v8 of the restartable sequences system call patchset, after taking care of feedback received from Peter Zijlstra, Andy Lutomirski, Boqun Feng, and Dave Watson. Added PowerPC architecture support provided by Boqun Feng. It is based on Linux kernel v4.8-rc2. The small library provided in kernel selftests now allows to perform either a single final commit (do_rseq()), a speculative store before the final commit (do_rseq2()), or a speculative memcpy before the final commit (do_rseq_memcpy()). Feedback is welcome! Thanks, Mathieu Boqun Feng (2): Restartable sequences: powerpc architecture support Restartable sequences: Wire up powerpc system call Mathieu Desnoyers (7): Restartable sequences system call tracing: instrument restartable sequences 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 Restartable sequences: self-tests MAINTAINERS | 11 + arch/Kconfig | 7 + arch/arm/Kconfig | 1 + arch/arm/include/uapi/asm/unistd.h | 1 + arch/arm/kernel/calls.S | 1 + arch/arm/kernel/signal.c | 7 + arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/systbl.h | 1 + arch/powerpc/include/asm/unistd.h | 2 +- arch/powerpc/include/uapi/asm/unistd.h | 1 + arch/powerpc/kernel/signal.c | 3 + arch/x86/Kconfig | 1 + arch/x86/entry/common.c | 1 + arch/x86/entry/syscalls/syscall_32.tbl | 1 + arch/x86/entry/syscalls/syscall_64.tbl | 1 + arch/x86/kernel/signal.c | 6 + fs/exec.c | 1 + include/linux/sched.h | 72 ++ include/trace/events/rseq.h | 64 ++ include/uapi/linux/Kbuild | 1 + include/uapi/linux/rseq.h | 106 ++ init/Kconfig | 13 + kernel/Makefile | 1 + kernel/fork.c | 2 + kernel/rseq.c | 296 ++++++ kernel/sched/core.c | 1 + kernel/sys_ni.c | 3 + tools/testing/selftests/rseq/.gitignore | 3 + tools/testing/selftests/rseq/Makefile | 13 + .../testing/selftests/rseq/basic_percpu_ops_test.c | 286 +++++ tools/testing/selftests/rseq/basic_test.c | 107 ++ tools/testing/selftests/rseq/param_test.c | 1116 ++++++++++++++++++++ tools/testing/selftests/rseq/rseq-arm.h | 168 +++ tools/testing/selftests/rseq/rseq-ppc.h | 273 +++++ tools/testing/selftests/rseq/rseq-x86.h | 306 ++++++ tools/testing/selftests/rseq/rseq.c | 231 ++++ tools/testing/selftests/rseq/rseq.h | 454 ++++++++ 37 files changed, 3562 insertions(+), 1 deletion(-) create mode 100644 include/trace/events/rseq.h create mode 100644 include/uapi/linux/rseq.h create mode 100644 kernel/rseq.c 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 -- 2.1.4 -- 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
