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35ce7f29a4
linux/kernel/rcu
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Paul E. McKenney 35ce7f29a4 rcu: Create rcuo kthreads only for onlined CPUs 
RCU currently uses for_each_possible_cpu() to spawn rcuo kthreads,
which can result in more rcuo kthreads than one would expect, for
example, derRichard reported 64 CPUs worth of rcuo kthreads on an
8-CPU image.  This commit therefore creates rcuo kthreads only for
those CPUs that actually come online.

This was reported by derRichard on the OFTC IRC network.

Reported-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2014-09-16 10:08:02 -07:00
..
Makefile rcutorture: Abstract rcu_torture_random() 2014-02-23 09:00:58 -08:00
rcu.h rcu: Fix __rcu_reclaim() to use true/false for bool 2014-07-09 09:15:32 -07:00
rcutorture.c Josh has moved 2014-07-30 17:16:13 -07:00
srcu.c rcu: Eliminate read-modify-write ACCESS_ONCE() calls 2014-07-09 09:14:49 -07:00
tiny_plugin.h rcu: Protect uses of ->jiffies_stall with ACCESS_ONCE() 2014-04-29 08:44:41 -07:00
tiny.c rcu: Ensure kernel/rcu/rcu.h can be sourced/used stand-alone 2014-02-26 06:35:18 -08:00
tree_plugin.h rcu: Create rcuo kthreads only for onlined CPUs 2014-09-16 10:08:02 -07:00
tree_trace.c rcu: Stop tracking FSF's postal address 2014-02-17 15:01:37 -08:00
tree.c rcu: Create rcuo kthreads only for onlined CPUs 2014-09-16 10:08:02 -07:00
tree.h rcu: Create rcuo kthreads only for onlined CPUs 2014-09-16 10:08:02 -07:00
update.c rcu: Remove CONFIG_PROVE_RCU_DELAY 2014-07-09 09:15:31 -07:00