rcu: Add debugging info to assertion
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Mon, 27 Nov 2017 23:13:56 +0000 (15:13 -0800)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Tue, 26 Jun 2018 19:25:55 +0000 (12:25 -0700)
commit4bc8d55574dd316e43975651b9259c5c18d741fc
treeb7e171ee4ab41077338234b0f4a8ca97fff4f324
parentce397d215ccd07b8ae3f71db689aedb85d56ab40
rcu: Add debugging info to assertion

The WARN_ON_ONCE(rcu_preempt_blocked_readers_cgp()) in
rcu_gp_cleanup() triggers (inexplicably, of course) every so often.
This commit therefore extracts more information.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
kernel/rcu/tree.c
kernel/rcu/tree.h
kernel/rcu/tree_plugin.h