From: Neeraj Upadhyay <neeraj.upadhyay@xxxxxxxxxx>
rcu_watching_snap_in_eqs() and rcu_watching_snap_stopped_since()
will be used in subsequent commits by RCU-tasks to check rcu_watching
state of idle tasks. So, make these functions global.
Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@xxxxxxxxxx>
---
kernel/rcu/rcu.h | 4 ++++
kernel/rcu/tree.c | 4 ++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
index feb3ac1dc5d5..5fec1b52039c 100644
--- a/kernel/rcu/rcu.h
+++ b/kernel/rcu/rcu.h
@@ -609,6 +609,8 @@ void srcutorture_get_gp_data(struct srcu_struct *sp, int *flags,
#ifdef CONFIG_TINY_RCU
static inline bool rcu_watching_zero_in_eqs(int cpu, int *vp) { return false; }
+static inline bool rcu_watching_snap_in_eqs(int snap) { return false; }
+static inline bool rcu_watching_snap_stopped_since(int cpu, int snap) { return false; }
static inline unsigned long rcu_get_gp_seq(void) { return 0; }
static inline unsigned long rcu_exp_batches_completed(void) { return 0; }
static inline unsigned long
@@ -622,6 +624,8 @@ static inline void rcu_gp_slow_register(atomic_t *rgssp) { }
static inline void rcu_gp_slow_unregister(atomic_t *rgssp) { }
#else /* #ifdef CONFIG_TINY_RCU */
bool rcu_watching_zero_in_eqs(int cpu, int *vp);
+bool rcu_watching_snap_in_eqs(int snap);
+bool rcu_watching_snap_stopped_since(int cpu, int snap);
unsigned long rcu_get_gp_seq(void);
unsigned long rcu_exp_batches_completed(void);
unsigned long srcu_batches_completed(struct srcu_struct *sp);
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index ea17dd2d0344..5ecbf85f157d 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -303,7 +303,7 @@ static void rcu_watching_online(void)
* Return true if the snapshot returned from ct_rcu_watching()
* indicates that RCU is in an extended quiescent state.
*/
-static bool rcu_watching_snap_in_eqs(int snap)
+bool rcu_watching_snap_in_eqs(int snap)
{
return !(snap & CT_RCU_WATCHING);
}
@@ -321,7 +321,7 @@ static bool rcu_watching_snap_in_eqs(int snap)
*
* This is meant to be used in a loop waiting for a CPU to go through an EQS.
*/
-static bool rcu_watching_snap_stopped_since(int cpu, int snap)
+bool rcu_watching_snap_stopped_since(int cpu, int snap)
{
/*
* The first failing snapshot is already ordered against the accesses
--
2.40.1
