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cdacbe1f91
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Paul E. McKenney cdacbe1f91 rcu: Add fastpath bypassing funnel locking 
In the common case, there will be only one expedited grace period in
the system at a given time, in which case it is not helpful to use
funnel locking.  This commit therefore adds a fastpath that bypasses
funnel locking when the root ->exp_funnel_mutex is not held.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-07-17 14:59:06 -07:00
..
00-INDEX documentation: Record rcu_dereference() value mishandling 2014-04-29 08:38:33 -07:00
arrayRCU.txt documentation: RCU-protected array indexes no longer supported 2015-05-27 12:56:17 -07:00
checklist.txt documentation: Record rcu_dereference() value mishandling 2014-04-29 08:38:33 -07:00
listRCU.txt rcu: Update docs to include kfree_rcu() 2012-11-08 11:44:25 -08:00
lockdep-splat.txt rcu: Document interpretation of RCU-lockdep splats 2011-09-28 21:38:28 -07:00
lockdep.txt documentation: RCU-protected array indexes no longer supported 2015-05-27 12:56:17 -07:00
NMI-RCU.txt rcu: Fix RCU's NMI documentation 2011-09-28 21:36:44 -07:00
rcu_dereference.txt Merge branches 'array.2015.05.27a', 'doc.2015.05.27a', 'fixes.2015.05.27a', 'hotplug.2015.05.27a', 'init.2015.05.27a', 'tiny.2015.05.27a' and 'torture.2015.05.27a' into HEAD 2015-05-27 13:00:49 -07:00
rcu.txt rcu: Remove redundant TREE_PREEMPT_RCU config option 2014-10-29 10:20:05 -07:00
rcubarrier.txt rcu: Fix rcu_barrier() documentation 2013-08-18 17:05:32 -07:00
rculist_nulls.txt netfilter: nf_conntrack: nf_conntrack_alloc() fixes 2009-07-16 14:03:40 +02:00
rcuref.txt documentation: Add pointer to percpu-ref for RCU and refcount 2014-07-08 08:32:56 -07:00
RTFP.txt Doc: Change wikipedia's URL from http to https 2015-06-22 10:14:05 -06:00
stallwarn.txt documentation: Describe new expedited stall warnings 2015-07-17 14:59:03 -07:00
torture.txt rcu: Increase rcutorture test coverage 2013-08-20 11:38:41 -07:00
trace.txt rcu: Add fastpath bypassing funnel locking 2015-07-17 14:59:06 -07:00
UP.txt rcu: Add synchronize_sched_expedited() rcutorture doc + updates 2009-07-03 10:02:29 +02:00
whatisRCU.txt Merge branches 'array.2015.05.27a', 'doc.2015.05.27a', 'fixes.2015.05.27a', 'hotplug.2015.05.27a', 'init.2015.05.27a', 'tiny.2015.05.27a' and 'torture.2015.05.27a' into HEAD 2015-05-27 13:00:49 -07:00