linux-kernel - [PATCH 0/4] sched: schedule/preempt optimizations and cleanups

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Message-Id: <1422404652-29067-1-git-send-email-fweisbec@gmail.com>
Date:	Wed, 28 Jan 2015 01:24:08 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH 0/4] sched: schedule/preempt optimizations and cleanups

Hey,

This series is based on suggestions from Linus. I posted a previous
version one month ago then Linus suggested more improvements. Here
is the following iteration.

The last patch suggests to (ab)use PREEMPT_ACTIVE to disable preemption
on schedule(). It's optional as it's a possibily controversial cleanup.

Thanks.

Frederic Weisbecker (4):
  sched: Pull resched loop to __schedule() callers
  sched: Use traced preempt count operations to toggle PREEMPT_ACTIVE
  sched: Pull preemption disablement to __schedule() caller
  sched: Account PREEMPT_ACTIVE context as atomic

 include/linux/preempt_mask.h |  4 ++--
 kernel/sched/core.c          | 29 +++++++++++++++--------------
 2 files changed, 17 insertions(+), 16 deletions(-)

-- 
2.1.4

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