rcu: Remove rsp parameter from rcu_accelerate_cbs_unlocked()

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_accelerate_cbs_unlocked().

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

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 984dbbf..e66d9e4 100644 (file)
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1704,15 +1704,14 @@ static bool rcu_accelerate_cbs(struct rcu_node *rnp, struct rcu_data *rdp)
  * that a new grace-period request be made, invokes rcu_accelerate_cbs()
  * while holding the leaf rcu_node structure's ->lock.
  */
-static void rcu_accelerate_cbs_unlocked(struct rcu_state *rsp,
-                                       struct rcu_node *rnp,
+static void rcu_accelerate_cbs_unlocked(struct rcu_node *rnp,
                                        struct rcu_data *rdp)
 {
        unsigned long c;
        bool needwake;
 
        lockdep_assert_irqs_disabled();
-       c = rcu_seq_snap(&rsp->gp_seq);
+       c = rcu_seq_snap(&rcu_state.gp_seq);
        if (!rdp->gpwrap && ULONG_CMP_GE(rdp->gp_seq_needed, c)) {
                /* Old request still live, so mark recent callbacks. */
                (void)rcu_segcblist_accelerate(&rdp->cblist, c);
@@ -2759,7 +2758,7 @@ __rcu_process_callbacks(struct rcu_state *rsp)
            rcu_segcblist_is_enabled(&rdp->cblist)) {
                local_irq_save(flags);
                if (!rcu_segcblist_restempty(&rdp->cblist, RCU_NEXT_READY_TAIL))
-                       rcu_accelerate_cbs_unlocked(rsp, rnp, rdp);
+                       rcu_accelerate_cbs_unlocked(rnp, rdp);
                local_irq_restore(flags);
        }
 
@@ -2846,7 +2845,7 @@ static void __call_rcu_core(struct rcu_state *rsp, struct rcu_data *rdp,
 
                /* Start a new grace period if one not already started. */
                if (!rcu_gp_in_progress()) {
-                       rcu_accelerate_cbs_unlocked(rsp, rdp->mynode, rdp);
+                       rcu_accelerate_cbs_unlocked(rdp->mynode, rdp);
                } else {
                        /* Give the grace period a kick. */
                        rdp->blimit = LONG_MAX;