rcu: Remove rsp parameter from print_cpu_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
print_cpu_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 13f5077..f139b82 100644 (file)
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1387,12 +1387,13 @@ static void print_other_cpu_stall(unsigned long gp_seq)
        force_quiescent_state(rsp);  /* Kick them all. */
 }
 
-static void print_cpu_stall(struct rcu_state *rsp)
+static void print_cpu_stall(void)
 {
        int cpu;
        unsigned long flags;
        struct rcu_data *rdp = this_cpu_ptr(&rcu_data);
        struct rcu_node *rnp = rcu_get_root();
+       struct rcu_state *rsp = &rcu_state;
        long totqlen = 0;
 
        /* Kick and suppress, if so configured. */
@@ -1492,7 +1493,7 @@ static void check_cpu_stall(struct rcu_state *rsp, struct rcu_data *rdp)
            cmpxchg(&rsp->jiffies_stall, js, jn) == js) {
 
                /* We haven't checked in, so go dump stack. */
-               print_cpu_stall(rsp);
+               print_cpu_stall();
 
        } else if (rcu_gp_in_progress() &&
                   ULONG_CMP_GE(j, js + RCU_STALL_RAT_DELAY) &&