tree d6d2eeb78cbbb002f105a7a0d4d8928c2e4dca29
parent cc5f730b41506d37a5c2826b2e801d0a59853d11
author Oleg Nesterov <oleg@redhat.com> 1441987158 +0200
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1444155945 -0700

rcu_sync: Cleanup the CONFIG_PROVE_RCU checks

1. Rename __rcu_sync_is_idle() to rcu_sync_lockdep_assert() and
   change it to use rcu_lockdep_assert().

2. Change rcu_sync_is_idle() to return rsp->gp_state == GP_IDLE
   unconditonally, this way we can remove the same check from
   rcu_sync_lockdep_assert() and clearly isolate the debugging
   code.

Note: rcu_sync_enter()->wait_event(gp_state == GP_PASSED) needs
another CONFIG_PROVE_RCU check, the same as is done in ->sync(); but
this needs some simple preparations in the core RCU code to avoid the
code duplication.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>