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Subject[PATCH tip/core/rcu 08/52] rcu: Remove rsp parameter from rcu_check_gp_kthread_starvation()
Date
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_kthread_starvation().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
kernel/rcu/tree.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 7f3e93eb726a..0f419554122a 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -1239,10 +1239,11 @@ static const char *gp_state_getname(short gs)
/*
* Complain about starvation of grace-period kthread.
*/
-static void rcu_check_gp_kthread_starvation(struct rcu_state *rsp)
+static void rcu_check_gp_kthread_starvation(void)
{
unsigned long gpa;
unsigned long j;
+ struct rcu_state *rsp = &rcu_state;

j = jiffies;
gpa = READ_ONCE(rsp->gp_activity);
@@ -1376,7 +1377,7 @@ static void print_other_cpu_stall(struct rcu_state *rsp, unsigned long gp_seq)
WRITE_ONCE(rsp->jiffies_stall,
jiffies + 3 * rcu_jiffies_till_stall_check() + 3);

- rcu_check_gp_kthread_starvation(rsp);
+ rcu_check_gp_kthread_starvation();

panic_on_rcu_stall();

@@ -1414,7 +1415,7 @@ static void print_cpu_stall(struct rcu_state *rsp)
jiffies - rsp->gp_start,
(long)rcu_seq_current(&rsp->gp_seq), totqlen);

- rcu_check_gp_kthread_starvation(rsp);
+ rcu_check_gp_kthread_starvation();

rcu_dump_cpu_stacks(rsp);

--
2.17.1
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