rcu: Fix tracing formatting

The rcu_state structure's ->completed field is unsigned long, so this
commit adjusts show_one_rcugp()'s printf() format to suit.  Also add
the required ACCESS_ONCE() directives while we are in this function.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index b966d56ebb51..8ed9c481db03 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -68,8 +68,8 @@ static struct lock_class_key rcu_fqs_class[RCU_NUM_LVLS];
         .level = { &sname##_state.node[0] }, \
         .call = cr, \
         .fqs_state = RCU_GP_IDLE, \
-        .gpnum = -300, \
-        .completed = -300, \
+        .gpnum = 0UL - 300UL, \
+        .completed = 0UL - 300UL, \
         .orphan_lock = __RAW_SPIN_LOCK_UNLOCKED(&sname##_state.orphan_lock), \
         .orphan_nxttail = &sname##_state.orphan_nxtlist, \
         .orphan_donetail = &sname##_state.orphan_donelist, \