From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@kernel.org, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com,
bobby.prani@gmail.com
Subject: [PATCH tip/core/rcu 0/3] Tiny RCU updates for 4.2
Date: Tue, 12 May 2015 15:48:55 -0700 [thread overview]
Message-ID: <20150512224855.GA4776@linux.vnet.ibm.com> (raw)
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(-)
next reply other threads:[~2015-05-12 22:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-12 22:48 Paul E. McKenney [this message]
2015-05-12 22:49 ` [PATCH tip/core/rcu 1/3] rcu: Further shrink Tiny RCU by making empty functions static inlines Paul E. McKenney
2015-05-12 22:49 ` [PATCH tip/core/rcu 2/3] rcutorture: Test both RCU-sched and RCU-bh for Tiny RCU Paul E. McKenney
2015-05-13 0:59 ` josh
2015-05-13 13:03 ` Steven Rostedt
2015-05-13 13:07 ` Paul E. McKenney
2015-05-13 16:32 ` Josh Triplett
2015-05-12 22:49 ` [PATCH tip/core/rcu 3/3] rcu: Correctly handle non-empty Tiny RCU callback list with none ready Paul E. McKenney
2015-05-13 0:58 ` josh
2015-05-13 13:09 ` Paul E. McKenney
2015-05-13 0:57 ` [PATCH tip/core/rcu 1/3] rcu: Further shrink Tiny RCU by making empty functions static inlines josh
2015-05-13 12:59 ` Paul E. McKenney
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