linux-kernel - [PATCH tip/core/rcu 0/3] Tiny RCU updates for 4.2

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Message-ID: <20150512224855.GA4776@linux.vnet.ibm.com>
Date:	Tue, 12 May 2015 15:48:55 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...nel.org, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
	josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
	rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
	dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com,
	bobby.prani@...il.com
Subject: [PATCH tip/core/rcu 0/3] Tiny RCU updates for 4.2

Hello!

This series contains updates to Tiny RCU, including a low-probability but
quite real race condition.

1.	Further shrink Tiny RCU by making empty functions static inlines.

2.	Test both RCU-sched and RCU-bh for Tiny RCU, which located the
	race condition fixed by #3 below.

3.	Correctly handle non-empty Tiny RCU callback list with none ready.

							Thanx, Paul

------------------------------------------------------------------------

 b/include/linux/rcupdate.h                                   |    4 -
 b/include/linux/rcutiny.h                                    |   16 ++++
 b/include/linux/rcutree.h                                    |    5 +
 b/kernel/rcu/tiny.c                                          |   38 +----------
 b/tools/testing/selftests/rcutorture/configs/rcu/TINY02.boot |    1 
 5 files changed, 27 insertions(+), 37 deletions(-)

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