rcu: Remove unused variable from rcu_torture_writer()

The oldbatch variable in rcu_torture_writer() is stored to, but never
loaded from.  This commit therefore removes it.

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

1 files changed, 0 insertions, 2 deletions

diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index e3a1244eeb56..20ce3b6f9aa6 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -797,7 +797,6 @@ rcu_torture_writer(void *arg)
 {
         bool exp;
         int i;
-        long oldbatch = rcu_batches_completed();
         struct rcu_torture *rp;
         struct rcu_torture *rp1;
         struct rcu_torture *old_rp;
@@ -851,7 +850,6 @@ rcu_torture_writer(void *arg)
                         }
                 }
                 rcutorture_record_progress(++rcu_torture_current_version);
-                oldbatch = cur_ops->completed();
                 rcu_stutter_wait("rcu_torture_writer");
         } while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
         VERBOSE_PRINTK_STRING("rcu_torture_writer task stopping");