Commit-ID: cd6d17b4a4646d4bf2568f3a4de13a5a13e2ed28
Gitweb: https://git.kernel.org/tip/cd6d17b4a4646d4bf2568f3a4de13a5a13e2ed28
Author: Neeraj Upadhyay <neeraju@xxxxxxxxxxxxxx>
AuthorDate: Fri, 29 Mar 2019 15:25:52 +0530
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
CommitDate: Tue, 28 May 2019 09:02:57 -0700
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@xxxxxxxxxxxxxx>
Reviewed-by: Mukesh Ojha <mojha@xxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxx>
---
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 1102765f91fd..3a9891a74ead 100644
--- 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");
|