rcu: Diagnose extended sync_rcu_do_polled_gp() loops
authorPaul E. McKenney <paulmck@kernel.org>
Mon, 9 May 2022 16:49:05 +0000 (09:49 -0700)
committerPaul E. McKenney <paulmck@kernel.org>
Fri, 22 Jul 2022 00:41:56 +0000 (17:41 -0700)
commit82e445697d6a14d6b7462c13c613ebdd96468818
tree5e20c4e1673667c23ec440f27580acb6e8fa82d9
parentef4f9d9b9230fcf4fca9801f03c31d99ed06a716
rcu: Diagnose extended sync_rcu_do_polled_gp() loops

This commit dumps out state when the sync_rcu_do_polled_gp() function
loops more than expected.  This is a debugging aid.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
kernel/rcu/tree_exp.h