rcu: Abstract rcu_start_future_gp() from rcu_nocb_wait_gp()

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CPUs going idle will need to record the need for a future grace
period, but won't actually need to block waiting on it.  This commit
therefore splits rcu_start_future_gp(), which does the recording, from
rcu_nocb_wait_gp(), which now invokes rcu_start_future_gp() to do the
recording, after which rcu_nocb_wait_gp() does the waiting.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

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Paul E. McKenney 2012-12-30 15:21:01 -08:00 • committed by Paul E. McKenney

parent 8b425aa8f1

commit 0446be4897

3 changed files with 130 additions and 99 deletions

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123

kernel/rcutree.c

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2

kernel/rcutree.h

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104

kernel/rcutree_plugin.h

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