[PATCH tip/core/rcu 07/52] rcu: Remove rsp parameter from record_gp_stall_check_time()

From: Paul E. McKenney
Date: Wed Aug 29 2018 - 18:42:58 EST


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
record_gp_stall_check_time().

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcu/tree.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 9a40692f980d..7f3e93eb726a 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1213,17 +1213,17 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp)
return 0;
}

-static void record_gp_stall_check_time(struct rcu_state *rsp)
+static void record_gp_stall_check_time(void)
{
unsigned long j = jiffies;
unsigned long j1;

- rsp->gp_start = j;
+ rcu_state.gp_start = j;
j1 = rcu_jiffies_till_stall_check();
/* Record ->gp_start before ->jiffies_stall. */
- smp_store_release(&rsp->jiffies_stall, j + j1); /* ^^^ */
- rsp->jiffies_resched = j + j1 / 2;
- rsp->n_force_qs_gpstart = READ_ONCE(rsp->n_force_qs);
+ smp_store_release(&rcu_state.jiffies_stall, j + j1); /* ^^^ */
+ rcu_state.jiffies_resched = j + j1 / 2;
+ rcu_state.n_force_qs_gpstart = READ_ONCE(rcu_state.n_force_qs);
}

/*
@@ -1855,7 +1855,7 @@ static bool rcu_gp_init(struct rcu_state *rsp)
}

/* Advance to a new grace period and initialize state. */
- record_gp_stall_check_time(rsp);
+ record_gp_stall_check_time();
/* Record GP times before starting GP, hence rcu_seq_start(). */
rcu_seq_start(&rsp->gp_seq);
trace_rcu_grace_period(rsp->name, rsp->gp_seq, TPS("start"));
--
2.17.1