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rcu: Enable stall warnings for synchronize_rcu_expedited()

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This commit redirects synchronize_rcu_expedited()'s wait to
synchronize_sched_expedited_wait(), thus enabling RCU CPU
stall warnings.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2015-08-18 12:17:29 -07:00
parent c58656382e
commit b08517c76d
1 changed files with 1 additions and 2 deletions
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3
kernel/rcu/tree_plugin.h
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@ -761,8 +761,7 @@ void synchronize_rcu_expedited(void)
/* Wait for snapshotted ->blkd_tasks lists to drain. */
rnp = rcu_get_root(rsp);
wait_event(rsp->expedited_wq,
sync_rcu_preempt_exp_done(rnp));
synchronize_sched_expedited_wait(rsp);
/* Clean up and exit. */
rcu_exp_gp_seq_end(rsp);