linux-kernel - [PATCH 0/6] Fixup perf tests for 32-bit systems with 64-bit time

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Date:   Fri, 28 Oct 2022 19:56:26 +1000
From:   Alistair Francis <alistair.francis@...nsource.wdc.com>
To:     linux-kernel@...r.kernel.org
Cc:     acme@...nel.org, dave@...olabs.net,
        alexander.shishkin@...ux.intel.com, tglx@...utronix.de,
        namhyung@...nel.org, jolsa@...hat.com,
        linux-perf-users@...r.kernel.org, acme@...hat.com,
        dvhart@...radead.org, mark.rutland@....com, peterz@...radead.org,
        arnd@...db.de, alistair23@...il.com,
        linux-riscv@...ts.infradead.org, mingo@...hat.com,
        alistair.francis@....com, atish.patra@....com
Subject: [PATCH 0/6] Fixup perf tests for 32-bit systems with 64-bit time_t

From: Alistair Francis <alistair.francis@....com>

This series aims to fix perf for 32-bit systems with a 64-bit time_t
(like RV32).

This series also adds a public futex waitv syscall that userspace
can use to avoid this complexity.

This series hasn't addressed the build failure pointed out in:
https://patchwork.kernel.org/project/linux-riscv/patch/20211209235857.423773-1-alistair.francis@opensource.wdc.com/
as I'm unable to reproduce it and unclear on how it can be fixed.

v6:
 - No change

Alistair Francis (6):
  perf bench futex: Add support for 32-bit systems with 64-bit time_t
  selftests: futex: Call the futex syscall from a function
  uapi: futex: Add a futex syscall
  selftests: futex: Add support for 32-bit systems with 64-bit time_t
  uapi: futex: Add a futex waitv syscall
  selftests: futex: Use futex_waitv helper function

 include/uapi/linux/futex_syscall.h            | 119 ++++++++++++++++++
 tools/perf/bench/futex.h                      |  52 +++++++-
 .../futex/functional/futex_requeue_pi.c       |   2 +-
 .../selftests/futex/include/futex2test.h      |   3 +-
 .../selftests/futex/include/futextest.h       |  60 +++++----
 5 files changed, 206 insertions(+), 30 deletions(-)
 create mode 100644 include/uapi/linux/futex_syscall.h

-- 
2.37.3