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>

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 1102765f91fd12ed7776f3f5cc88aefb743fe7ae..3a9891a74ead855d4f954cb41562e93c6012cf17 100644 (file)
--- 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");