From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com,
akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca,
josh@joshtriplett.org, dvhltc@us.ibm.com, niv@us.ibm.com,
tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org,
Valdis.Kletnieks@vt.edu
Subject: [PATCH tip/core/rcu 0/4] Review comments, cleanups, and preemptable synchronize_rcu() fixes
Date: Sun, 13 Sep 2009 09:14:38 -0700 [thread overview]
Message-ID: <20090913161438.GA32550@linux.vnet.ibm.com> (raw)
This patchset provides updates to TREE_PREEMPT_RCU as follows:
1. Update the TREE_PREEMPT_RCU description to note that it is
suitable for small machines.
2. Add some WARN_ON_ONCE() calls to check for (incorrect)
concurrent grace-period initialization.
3. Simplify quiescent-state detection (which also speeds up
TREE_PREEMPT_RCU grace periods slightly).
4. Fix a thinko in TREE_PREEMPT_RCU's synchronize_rcu() that
could result in premature grace periods.
next reply other threads:[~2009-09-13 16:14 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-13 16:14 Paul E. McKenney [this message]
2009-09-13 16:15 ` [PATCH tip/core/rcu 1/4] Kconfig help needs to say that TREE_PREEMPT_RCU scales down Paul E. McKenney
2009-09-15 7:17 ` [tip:core/urgent] rcu: " tip-bot for Paul E. McKenney
2009-09-17 22:10 ` tip-bot for Paul E. McKenney
2009-09-13 16:15 ` [PATCH tip/core/rcu 2/4] Add debug checks to TREE_PREEMPT_RCU for premature grace periods Paul E. McKenney
2009-09-13 16:23 ` Daniel Walker
2009-09-13 16:31 ` Paul E. McKenney
2009-09-15 7:17 ` [tip:core/urgent] rcu: " tip-bot for Paul E. McKenney
2009-09-17 22:10 ` tip-bot for Paul E. McKenney
2009-09-13 16:15 ` [PATCH tip/core/rcu 3/4] Simplify rcu_read_unlock_special() quiescent-state accounting Paul E. McKenney
2009-09-15 7:17 ` [tip:core/urgent] rcu: " tip-bot for Paul E. McKenney
2009-09-15 19:53 ` [PATCH tip/core/rcu 3/4] " Josh Triplett
2009-09-17 22:11 ` [tip:core/urgent] rcu: " tip-bot for Paul E. McKenney
2009-09-13 16:15 ` [PATCH tip/core/rcu 4/4] Fix synchronize_rcu() for TREE_PREEMPT_RCU Paul E. McKenney
2009-09-15 7:18 ` [tip:core/urgent] rcu: " tip-bot for Paul E. McKenney
2009-09-17 22:11 ` tip-bot for Paul E. McKenney
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