linux-kernel - [PATCH] rcu: tree_plugin: Dump specified number of blocked tasks

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Date:   Fri, 29 Mar 2019 15:25:52 +0530
From:   Neeraj Upadhyay <neeraju@...eaurora.org>
To:     paulmck@...ux.vnet.ibm.com, josh@...htriplett.org,
        rostedt@...dmis.org, mathieu.desnoyers@...icios.com,
        jiangshanlai@...il.com, joel@...lfernandes.org
Cc:     rcu@...r.kernel.org, linux-kernel@...r.kernel.org,
        Neeraj Upadhyay <neeraju@...eaurora.org>
Subject: [PATCH] rcu: tree_plugin: Dump specified number of blocked tasks

dump_blkd_tasks() uses 10 as the max number of blocked
tasks, which are printed. However, it has an argument
which provides that number. So, use the argument value
instead. As all callers currently pass 10 as the number,
there isn't any impact.

Signed-off-by: Neeraj Upadhyay <neeraju@...eaurora.org>
---
 kernel/rcu/tree_plugin.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 3960294..08bcd87 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -740,7 +740,7 @@ void exit_rcu(void)
 	i = 0;
 	list_for_each(lhp, &rnp->blkd_tasks) {
 		pr_cont(" %p", lhp);
-		if (++i >= 10)
+		if (++i >= ncheck)
 			break;
 	}
 	pr_cont("\n");
-- 
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