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 <[email protected]> Reviewed-by: Mukesh Ojha <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]>
gatieme · May 28, 2019 · cd6d17b · cd6d17b
1 parent a188339
commit cd6d17b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
@@ -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");