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Message-Id: <20221028095632.1081262-1-alistair.francis@opensource.wdc.com>
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
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