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nocb: Clarify RCU nocb CPU error message
A message of the form "rcu: !!! lDTs ." can be tracked down, but doing so is not trivial. This commit therefore eases this process by adding text so that this error message now reads as follows: "rcu: nocb GP activity on CB-only CPU!!! lDTs ." Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
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@ -2417,7 +2417,7 @@ static void show_rcu_nocb_state(struct rcu_data *rdp)
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!waslocked && !wastimer && !wassleep)
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return; /* Nothing untowards. */
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pr_info(" !!! %c%c%c%c %c\n",
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pr_info(" nocb GP activity on CB-only CPU!!! %c%c%c%c %c\n",
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"lL"[waslocked],
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"dD"[!!rdp->nocb_defer_wakeup],
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"tT"[wastimer],
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