rcu: Remove rsp parameter from rcu_check_gp_start_stall()

There now is only one rcu_state structure in a given build of the
Linux kernel, so there is no need to pass it as a parameter to RCU's
functions.  This commit therefore removes the rsp parameter from
rcu_check_gp_start_stall().

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

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 2644ed6..f0a9f80 100644 (file)
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -2686,13 +2686,13 @@ static void force_quiescent_state(void)
  * RCU to come out of its idle mode.
  */
 static void
-rcu_check_gp_start_stall(struct rcu_state *rsp, struct rcu_node *rnp,
-                        struct rcu_data *rdp)
+rcu_check_gp_start_stall(struct rcu_node *rnp, struct rcu_data *rdp)
 {
        const unsigned long gpssdelay = rcu_jiffies_till_stall_check() * HZ;
        unsigned long flags;
        unsigned long j;
        struct rcu_node *rnp_root = rcu_get_root();
+       struct rcu_state *rsp = &rcu_state;
        static atomic_t warned = ATOMIC_INIT(0);
 
        if (!IS_ENABLED(CONFIG_PROVE_RCU) || rcu_gp_in_progress() ||
@@ -2772,7 +2772,7 @@ __rcu_process_callbacks(struct rcu_state *rsp)
                local_irq_restore(flags);
        }
 
-       rcu_check_gp_start_stall(rsp, rnp, rdp);
+       rcu_check_gp_start_stall(rnp, rdp);
 
        /* If there are callbacks ready, invoke them. */
        if (rcu_segcblist_ready_cbs(&rdp->cblist))