Commit cd6d17b4 authored Mar 29, 2019 by Neeraj Upadhyay Committed by Paul E. McKenney May 28, 2019

rcu: Dump specified number of blocked tasks



The dump_blkd_tasks() function dumps at most 10 blocked tasks, ignoring
the value of the ncheck parameter.  This commit therefore substitutes
the value of ncheck for the hard-coded value of 10.  Because all callers
currently pass 10 as the number, this patch does not change behavior,
but it is clearly an accident waiting to happen.

Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>

parent a188339c

kernel/rcu/tree_plugin.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -760,7 +760,7 @@ dump_blkd_tasks(struct rcu_node *rnp, int ncheck)
		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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