From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
"Paul E . McKenney" <paulmck@kernel.org>,
Boqun Feng <boqun.feng@gmail.com>,
"H . Peter Anvin" <hpa@zytor.com>, Paul Turner <pjt@google.com>,
linux-api@vger.kernel.org, Christian Brauner <brauner@kernel.org>,
Florian Weimer <fw@deneb.enyo.de>,
David.Laight@ACULAB.COM, carlos@redhat.com,
Peter Oskolkov <posk@posk.io>,
Alexander Mikhalitsyn <alexander@mihalicyn.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Subject: [PATCH v4 00/25] RSEQ node id and virtual cpu id extensions
Date: Thu, 22 Sep 2022 06:59:15 -0400 [thread overview]
Message-ID: <20220922105941.237830-1-mathieu.desnoyers@efficios.com> (raw)
Extend the rseq ABI to expose a NUMA node ID and a vm_vcpu_id field.
The NUMA node ID field allows implementing a faster getcpu(2) in libc.
The virtual cpu id allows ideal scaling (down or up) of user-space
per-cpu data structures. The virtual cpu ids allocated within a memory
space are tracked by the scheduler, which takes into account the number
of concurrently running threads, thus implicitly considering the number
of threads, the cpu affinity, the cpusets applying to those threads, and
the number of logical cores on the system.
This series is based on the v5.19 tag.
Thanks,
Mathieu
Mathieu Desnoyers (25):
rseq: Introduce feature size and alignment ELF auxiliary vector
entries
rseq: Introduce extensible rseq ABI
rseq: Extend struct rseq with numa node id
selftests/rseq: Use ELF auxiliary vector for extensible rseq
selftests/rseq: Implement rseq numa node id field selftest
lib: Invert _find_next_bit source arguments
lib: Implement find_{first,next}_{zero,one}_and_zero_bit
cpumask: Implement cpumask_{first,next}_{zero,one}_and_zero
sched: Introduce per memory space current virtual cpu id
rseq: Extend struct rseq with per memory space vcpu id
selftests/rseq: Remove RSEQ_SKIP_FASTPATH code
selftests/rseq: Implement rseq vm_vcpu_id field support
selftests/rseq: x86: Template memory ordering and percpu access mode
selftests/rseq: arm: Template memory ordering and percpu access mode
selftests/rseq: arm64: Template memory ordering and percpu access mode
selftests/rseq: mips: Template memory ordering and percpu access mode
selftests/rseq: ppc: Template memory ordering and percpu access mode
selftests/rseq: s390: Template memory ordering and percpu access mode
selftests/rseq: riscv: Template memory ordering and percpu access mode
selftests/rseq: Implement basic percpu ops vm_vcpu_id test
selftests/rseq: Implement parametrized vm_vcpu_id test
selftests/rseq: x86: Implement rseq_load_u32_u32
selftests/rseq: Implement numa node id vs vm_vcpu_id invariant test
selftests/rseq: parametrized test: Report/abort on negative cpu id
tracing/rseq: Add mm_vcpu_id field to rseq_update
fs/binfmt_elf.c | 5 +
fs/exec.c | 6 +
include/linux/cpumask.h | 86 ++
include/linux/find.h | 123 +-
include/linux/mm.h | 25 +
include/linux/mm_types.h | 110 +-
include/linux/sched.h | 9 +
include/trace/events/rseq.h | 7 +-
include/uapi/linux/auxvec.h | 2 +
include/uapi/linux/rseq.h | 22 +
init/Kconfig | 4 +
kernel/fork.c | 11 +-
kernel/ptrace.c | 2 +-
kernel/rseq.c | 61 +-
kernel/sched/core.c | 49 +
kernel/sched/sched.h | 166 +++
kernel/signal.c | 2 +
lib/find_bit.c | 17 +-
tools/include/linux/find.h | 9 +-
tools/lib/find_bit.c | 17 +-
tools/testing/selftests/rseq/.gitignore | 5 +
tools/testing/selftests/rseq/Makefile | 20 +-
.../testing/selftests/rseq/basic_numa_test.c | 117 ++
.../selftests/rseq/basic_percpu_ops_test.c | 46 +-
tools/testing/selftests/rseq/basic_test.c | 4 +
tools/testing/selftests/rseq/compiler.h | 6 +
tools/testing/selftests/rseq/param_test.c | 157 ++-
tools/testing/selftests/rseq/rseq-abi.h | 22 +
tools/testing/selftests/rseq/rseq-arm-bits.h | 505 +++++++
tools/testing/selftests/rseq/rseq-arm.h | 701 +---------
.../testing/selftests/rseq/rseq-arm64-bits.h | 392 ++++++
tools/testing/selftests/rseq/rseq-arm64.h | 520 +------
.../testing/selftests/rseq/rseq-bits-reset.h | 10 +
.../selftests/rseq/rseq-bits-template.h | 39 +
tools/testing/selftests/rseq/rseq-mips-bits.h | 462 +++++++
tools/testing/selftests/rseq/rseq-mips.h | 646 +--------
tools/testing/selftests/rseq/rseq-ppc-bits.h | 454 +++++++
tools/testing/selftests/rseq/rseq-ppc.h | 617 +--------
.../testing/selftests/rseq/rseq-riscv-bits.h | 410 ++++++
tools/testing/selftests/rseq/rseq-riscv.h | 529 +-------
tools/testing/selftests/rseq/rseq-s390-bits.h | 474 +++++++
tools/testing/selftests/rseq/rseq-s390.h | 495 +------
tools/testing/selftests/rseq/rseq-skip.h | 65 -
tools/testing/selftests/rseq/rseq-x86-bits.h | 1036 ++++++++++++++
tools/testing/selftests/rseq/rseq-x86.h | 1193 +----------------
tools/testing/selftests/rseq/rseq.c | 86 +-
tools/testing/selftests/rseq/rseq.h | 229 +++-
.../testing/selftests/rseq/run_param_test.sh | 5 +
48 files changed, 5286 insertions(+), 4692 deletions(-)
create mode 100644 tools/testing/selftests/rseq/basic_numa_test.c
create mode 100644 tools/testing/selftests/rseq/rseq-arm-bits.h
create mode 100644 tools/testing/selftests/rseq/rseq-arm64-bits.h
create mode 100644 tools/testing/selftests/rseq/rseq-bits-reset.h
create mode 100644 tools/testing/selftests/rseq/rseq-bits-template.h
create mode 100644 tools/testing/selftests/rseq/rseq-mips-bits.h
create mode 100644 tools/testing/selftests/rseq/rseq-ppc-bits.h
create mode 100644 tools/testing/selftests/rseq/rseq-riscv-bits.h
create mode 100644 tools/testing/selftests/rseq/rseq-s390-bits.h
delete mode 100644 tools/testing/selftests/rseq/rseq-skip.h
create mode 100644 tools/testing/selftests/rseq/rseq-x86-bits.h
--
2.25.1
next reply other threads:[~2022-09-22 11:05 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-22 10:59 Mathieu Desnoyers [this message]
2022-09-22 10:59 ` [PATCH v4 01/25] rseq: Introduce feature size and alignment ELF auxiliary vector entries Mathieu Desnoyers
2022-10-10 12:42 ` Florian Weimer
2022-10-17 16:09 ` Mathieu Desnoyers
2022-10-17 17:32 ` Mathieu Desnoyers
2022-10-18 15:34 ` Florian Weimer
2022-10-18 19:00 ` Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 02/25] rseq: Introduce extensible rseq ABI Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 03/25] rseq: Extend struct rseq with numa node id Mathieu Desnoyers
2022-09-23 11:13 ` Peter Zijlstra
2022-09-23 13:00 ` Mathieu Desnoyers
2022-09-23 13:09 ` [PATCH v4.1 03/25 1/1] " Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 04/25] selftests/rseq: Use ELF auxiliary vector for extensible rseq Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 05/25] selftests/rseq: Implement rseq numa node id field selftest Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 06/25] lib: Invert _find_next_bit source arguments Mathieu Desnoyers
2022-09-27 8:04 ` kernel test robot
2022-09-22 10:59 ` [PATCH v4 07/25] lib: Implement find_{first,next}_{zero,one}_and_zero_bit Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 08/25] cpumask: Implement cpumask_{first,next}_{zero,one}_and_zero Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 09/25] sched: Introduce per memory space current virtual cpu id Mathieu Desnoyers
2022-09-27 13:43 ` [PATCH v4.1 " Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 10/25] rseq: Extend struct rseq with per memory space vcpu id Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 11/25] selftests/rseq: Remove RSEQ_SKIP_FASTPATH code Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 12/25] selftests/rseq: Implement rseq vm_vcpu_id field support Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 13/25] selftests/rseq: x86: Template memory ordering and percpu access mode Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 14/25] selftests/rseq: arm: " Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 15/25] selftests/rseq: arm64: " Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 16/25] selftests/rseq: mips: " Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 17/25] selftests/rseq: ppc: " Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 18/25] selftests/rseq: s390: " Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 19/25] selftests/rseq: riscv: " Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 20/25] selftests/rseq: Implement basic percpu ops vm_vcpu_id test Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 21/25] selftests/rseq: Implement parametrized " Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 22/25] selftests/rseq: x86: Implement rseq_load_u32_u32 Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 23/25] selftests/rseq: Implement numa node id vs vm_vcpu_id invariant test Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 24/25] selftests/rseq: parametrized test: Report/abort on negative cpu id Mathieu Desnoyers
2022-09-22 10:59 ` [PATCH v4 25/25] tracing/rseq: Add mm_vcpu_id field to rseq_update Mathieu Desnoyers
2022-09-22 15:14 ` kernel test robot
2022-09-22 15:33 ` [PATCH v4.1 " Mathieu Desnoyers
2022-09-23 9:55 ` [PATCH v4 " kernel test robot
[not found] ` <e753568d-599c-d81a-8456-085bbbb0264d@efficios.com>
[not found] ` <CAEE+ybnLUHjU5-dWcWgcWiq-AM4ocquSbZ=PWiuexEsPB8P5Gw@mail.gmail.com>
2022-09-23 13:46 ` [PATCH v4 00/25] RSEQ node id and virtual cpu id extensions Mathieu Desnoyers
2022-10-10 13:04 ` Florian Weimer
2022-10-17 16:05 ` Mathieu Desnoyers
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