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From: Peter Oskolkov <posk@posk.io>
To: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org, linux-api@vger.kernel.org
Cc: Paul Turner <pjt@google.com>, Ben Segall <bsegall@google.com>,
	Peter Oskolkov <posk@google.com>, Peter Oskolkov <posk@posk.io>,
	Andrei Vagin <avagin@google.com>, Jann Horn <jannh@google.com>,
	Thierry Delisle <tdelisle@uwaterloo.ca>
Subject: [PATCH 0/4 v0.5] sched/umcg: RFC UMCG patchset
Date: Wed,  8 Sep 2021 11:49:01 -0700	[thread overview]
Message-ID: <20210908184905.163787-1-posk@google.com> (raw)

This is an update on v0.4:
https://lore.kernel.org/lkml/20210801200617.623745-1-posk@google.com/

Key changes:

v0.3 => v0.4:
- made idle workers list logic simpler
- only one idle server tracking
- removed two fields from struct umcg_task
- added timeout handling
- added worker preemption
- added a doc patch that now documents the syscalls and state
  transitions.

v0.4 => v0.5:
- refactored idle workers list management, as suggested by
  Thierry Delisle here:
  https://lore.kernel.org/lkml/3530714d-125b-e0f5-45b2-72695e2fc4ee@uwaterloo.ca/

I will now clean up libumcg (userspace) and selftests and post them
in a follow-up patchset.

Peter Oskolkov (4):
  sched/umcg: add WF_CURRENT_CPU and externise ttwu
  sched/umcg: RFC: add userspace atomic helpers
  sched/umcg: RFC: implement UMCG syscalls
  sched/umcg: add Documentation/userspace-api/umcg.rst

 Documentation/userspace-api/umcg.rst   | 546 ++++++++++++++++++++++
 arch/x86/entry/syscalls/syscall_64.tbl |   2 +
 include/linux/sched.h                  |   6 +
 include/linux/syscalls.h               |   4 +
 include/uapi/asm-generic/unistd.h      |   8 +-
 include/uapi/linux/umcg.h              | 114 +++++
 init/Kconfig                           |  10 +
 kernel/exit.c                          |   7 +
 kernel/sched/Makefile                  |   1 +
 kernel/sched/core.c                    |  20 +-
 kernel/sched/fair.c                    |   4 +
 kernel/sched/sched.h                   |  15 +-
 kernel/sched/umcg.c                    | 618 +++++++++++++++++++++++++
 kernel/sched/umcg.h                    | 325 +++++++++++++
 kernel/sys_ni.c                        |   4 +
 15 files changed, 1673 insertions(+), 11 deletions(-)
 create mode 100644 Documentation/userspace-api/umcg.rst
 create mode 100644 include/uapi/linux/umcg.h
 create mode 100644 kernel/sched/umcg.c
 create mode 100644 kernel/sched/umcg.h

--
2.25.1


             reply	other threads:[~2021-09-08 18:49 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-08 18:49 Peter Oskolkov [this message]
2021-09-08 18:49 ` [PATCH 1/4 v0.5] sched/umcg: add WF_CURRENT_CPU and externise ttwu Peter Oskolkov
2021-09-08 18:49 ` [PATCH 2/4 v0.5] sched/umcg: RFC: add userspace atomic helpers Peter Oskolkov
2021-09-08 23:38   ` Jann Horn
2021-09-09  1:16     ` Jann Horn
2021-09-09 19:06     ` Peter Oskolkov
2021-09-09 21:20       ` Jann Horn
2021-09-09 22:09         ` Peter Oskolkov
2021-09-09 23:13           ` Jann Horn
2021-09-14 16:52         ` Andy Lutomirski
2021-09-14 18:11           ` Peter Zijlstra
2021-09-14 18:40             ` Andy Lutomirski
2021-09-15 15:42               ` Peter Zijlstra
2021-09-15 16:50                 ` Andy Lutomirski
2021-09-15 19:10                   ` Peter Zijlstra
2021-09-14  8:07       ` Peter Zijlstra
2021-09-14 16:29         ` Peter Oskolkov
2021-09-14 18:04           ` Peter Zijlstra
2021-09-14 18:15             ` Peter Zijlstra
2021-09-14 18:29             ` Peter Oskolkov
2021-09-14 18:48               ` Peter Oskolkov
2021-09-08 18:49 ` [PATCH 3/4 v0.5] sched/umcg: RFC: implement UMCG syscalls Peter Oskolkov
2021-09-09  1:39   ` Jann Horn
2021-09-14 16:51     ` Peter Oskolkov
2021-09-08 18:49 ` [PATCH 4/4 v0.5] sched/umcg: add Documentation/userspace-api/umcg.rst Peter Oskolkov
2021-09-14 16:35   ` Tao Zhou
2021-09-14 16:57     ` Peter Oskolkov

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