linux-kernel - [PATCH rcu 18/26] rcu: Rename rcu_dynticks_zero_in_eqs() into rcu_watching_zero_in

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Message-Id: <20240816040241.17776-18-neeraj.upadhyay@kernel.org>
Date: Fri, 16 Aug 2024 09:32:33 +0530
From: neeraj.upadhyay@...nel.org
To: rcu@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	kernel-team@...a.com,
	rostedt@...dmis.org,
	paulmck@...nel.org,
	neeraj.upadhyay@...nel.org,
	neeraj.upadhyay@....com,
	boqun.feng@...il.com,
	joel@...lfernandes.org,
	urezki@...il.com,
	frederic@...nel.org,
	Valentin Schneider <vschneid@...hat.com>
Subject: [PATCH rcu 18/26] rcu: Rename rcu_dynticks_zero_in_eqs() into rcu_watching_zero_in_eqs()

From: Valentin Schneider <vschneid@...hat.com>

The context_tracking.state RCU_DYNTICKS subvariable has been renamed to
RCU_WATCHING, reflect that change in the related helpers.

Signed-off-by: Valentin Schneider <vschneid@...hat.com>
Reviewed-by: Frederic Weisbecker <frederic@...nel.org>
Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@...nel.org>
---
 kernel/rcu/rcu.h   | 4 ++--
 kernel/rcu/tasks.h | 2 +-
 kernel/rcu/tree.c  | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
index 38238e595a61..5564402af4cb 100644
--- a/kernel/rcu/rcu.h
+++ b/kernel/rcu/rcu.h
@@ -606,7 +606,7 @@ void srcutorture_get_gp_data(struct srcu_struct *sp, int *flags,
 #endif
 
 #ifdef CONFIG_TINY_RCU
-static inline bool rcu_dynticks_zero_in_eqs(int cpu, int *vp) { return false; }
+static inline bool rcu_watching_zero_in_eqs(int cpu, int *vp) { 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
@@ -619,7 +619,7 @@ static inline void rcu_fwd_progress_check(unsigned long j) { }
 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_dynticks_zero_in_eqs(int cpu, int *vp);
+bool rcu_watching_zero_in_eqs(int cpu, int *vp);
 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/tasks.h b/kernel/rcu/tasks.h
index ba3440a45b6d..2484c1a8e051 100644
--- a/kernel/rcu/tasks.h
+++ b/kernel/rcu/tasks.h
@@ -1613,7 +1613,7 @@ static int trc_inspect_reader(struct task_struct *t, void *bhp_in)
 		// However, we cannot safely change its state.
 		n_heavy_reader_attempts++;
 		// Check for "running" idle tasks on offline CPUs.
-		if (!rcu_dynticks_zero_in_eqs(cpu, &t->trc_reader_nesting))
+		if (!rcu_watching_zero_in_eqs(cpu, &t->trc_reader_nesting))
 			return -EINVAL; // No quiescent state, do it the hard way.
 		n_heavy_reader_updates++;
 		nesting = 0;
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 93570cb5e99e..ac3577ac10bd 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -341,7 +341,7 @@ static bool rcu_watching_snap_stopped_since(struct rcu_data *rdp, int snap)
  * Return true if the referenced integer is zero while the specified
  * CPU remains within a single extended quiescent state.
  */
-bool rcu_dynticks_zero_in_eqs(int cpu, int *vp)
+bool rcu_watching_zero_in_eqs(int cpu, int *vp)
 {
 	int snap;
 
-- 
2.40.1