linux-kernel - [PATCH 0/2] Scheduler time extension

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Message-ID: <20250215005414.224409-1-prakash.sangappa@oracle.com>
Date: Sat, 15 Feb 2025 00:54:12 +0000
From: Prakash Sangappa <prakash.sangappa@...cle.com>
To: linux-kernel@...r.kernel.org
Cc: peterz@...radead.org, rostedt@...dmis.org, mathieu.desnoyers@...icios.com,
        tglx@...utronix.de, prakash.sangappa@...cle.com
Subject: [PATCH 0/2] Scheduler time extension

Follow up to discussion in [1], posting these patches.
They are based on use of the restartable sequences(rseq) for API.

However, currently the discussion is on thread [2] in response to patch
posted by Steven. Mainly about whether this feature should be applicable
only to normal threads(SCHED_OTHER) under PREEMPT_LAZY preemption model
or keep it independent of the preemption method.

[1] https://lore.kernel.org/all/20241113000126.967713-1-prakash.sangappa@oracle.com/
[2] https://lore.kernel.org/all/20250131225837.972218232@goodmis.org/

Prakash Sangappa (2):
  Sched: Scheduler time slice extension
  Sched: Add scheduler stat for cpu time slice extension

 include/linux/entry-common.h | 11 +++++--
 include/linux/sched.h        | 20 +++++++++++++
 include/uapi/linux/rseq.h    |  5 ++++
 kernel/entry/common.c        | 15 ++++++----
 kernel/rseq.c                | 57 ++++++++++++++++++++++++++++++++++++
 kernel/sched/core.c          | 21 +++++++++++++
 kernel/sched/debug.c         |  1 +
 kernel/sched/syscalls.c      |  5 ++++
 8 files changed, 127 insertions(+), 8 deletions(-)

-- 
2.43.5