[PATCH tip/core/rcu 10/52] rcu: Remove rsp parameter from rcu_stall_kick_kthreads()

From: Paul E. McKenney
Date: Wed Aug 29 2018 - 18:41:43 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
rcu_stall_kick_kthreads().

Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcu/tree.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 2741d987e745..0777374f12a3 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1289,9 +1289,10 @@ static void rcu_dump_cpu_stacks(void)
* If too much time has passed in the current grace period, and if
* so configured, go kick the relevant kthreads.
*/
-static void rcu_stall_kick_kthreads(struct rcu_state *rsp)
+static void rcu_stall_kick_kthreads(void)
{
unsigned long j;
+ struct rcu_state *rsp = &rcu_state;

if (!rcu_kick_kthreads)
return;
@@ -1322,7 +1323,7 @@ static void print_other_cpu_stall(struct rcu_state *rsp, unsigned long gp_seq)
long totqlen = 0;

/* Kick and suppress, if so configured. */
- rcu_stall_kick_kthreads(rsp);
+ rcu_stall_kick_kthreads();
if (rcu_cpu_stall_suppress)
return;

@@ -1393,7 +1394,7 @@ static void print_cpu_stall(struct rcu_state *rsp)
long totqlen = 0;

/* Kick and suppress, if so configured. */
- rcu_stall_kick_kthreads(rsp);
+ rcu_stall_kick_kthreads();
if (rcu_cpu_stall_suppress)
return;

@@ -1451,7 +1452,7 @@ static void check_cpu_stall(struct rcu_state *rsp, struct rcu_data *rdp)
if ((rcu_cpu_stall_suppress && !rcu_kick_kthreads) ||
!rcu_gp_in_progress())
return;
- rcu_stall_kick_kthreads(rsp);
+ rcu_stall_kick_kthreads();
j = jiffies;

/*
--
2.17.1