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rcu: Fix obsolete rcu_initiate_boost() header comment 

Commit 1217ed1b (rcu: permit rcu_read_unlock() to be called while holding
runqueue locks) made rcu_initiate_boost() restore irq state when releasing
the rcu_node structure's ->lock, but failed to update the header comment
accordingly.  This commit therefore brings the header comment up to date.

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Paul E. McKenney 2012-08-01 15:57:54 -07:00 committed by Paul E. McKenney
parent a82dcc7602
commit b065a85354
1 changed files with 3 additions and 3 deletions
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6
kernel/rcutree_plugin.h
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@ -1197,9 +1197,9 @@ static int rcu_boost_kthread(void *arg)
* kthread to start boosting them. If there is an expedited grace
* period in progress, it is always time to boost.
*
* The caller must hold rnp->lock, which this function releases,
* but irqs remain disabled. The ->boost_kthread_task is immortal,
* so we don't need to worry about it going away.
* The caller must hold rnp->lock, which this function releases.
* The ->boost_kthread_task is immortal, so we don't need to worry
* about it going away.
*/
static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags)
{