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From:   Alexandre Chartre <alexandre.chartre@oracle.com>
To:     pbonzini@redhat.com, rkrcmar@redhat.com, tglx@linutronix.de,
        mingo@redhat.com, bp@alien8.de, hpa@zytor.com,
        dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org,
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Cc:     konrad.wilk@oracle.com, jan.setjeeilers@oracle.com,
        liran.alon@oracle.com, jwadams@google.com, graf@amazon.de,
        rppt@linux.vnet.ibm.com, alexandre.chartre@oracle.com
Subject: [RFC v2 17/26] rcu: Move tree.h static forward declarations to tree.c
Date:   Thu, 11 Jul 2019 16:25:29 +0200
Message-Id: <1562855138-19507-18-git-send-email-alexandre.chartre@oracle.com>
In-Reply-To: <1562855138-19507-1-git-send-email-alexandre.chartre@oracle.com>
References: <1562855138-19507-1-git-send-email-alexandre.chartre@oracle.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

tree.h has static forward declarations for inline function declared
in tree_plugin.h and tree_stall.h. These forward declarations prevent
including tree.h into a file different from tree.c

Signed-off-by: Alexandre Chartre <alexandre.chartre@oracle.com>
---
 kernel/rcu/tree.c |   54 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 kernel/rcu/tree.h |   55 +----------------------------------------------------
 2 files changed, 55 insertions(+), 54 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 980ca3c..44dd3b4 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -55,6 +55,60 @@
 #include "tree.h"
 #include "rcu.h"
 
+/* Forward declarations for tree_plugin.h */
+static void rcu_bootup_announce(void);
+static void rcu_qs(void);
+static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp);
+#ifdef CONFIG_HOTPLUG_CPU
+static bool rcu_preempt_has_tasks(struct rcu_node *rnp);
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+static int rcu_print_task_exp_stall(struct rcu_node *rnp);
+static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp);
+static void rcu_flavor_sched_clock_irq(int user);
+static void dump_blkd_tasks(struct rcu_node *rnp, int ncheck);
+static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags);
+static void rcu_preempt_boost_start_gp(struct rcu_node *rnp);
+static void invoke_rcu_callbacks_kthread(void);
+static bool rcu_is_callbacks_kthread(void);
+static void __init rcu_spawn_boost_kthreads(void);
+static void rcu_prepare_kthreads(int cpu);
+static void rcu_cleanup_after_idle(void);
+static void rcu_prepare_for_idle(void);
+static bool rcu_preempt_has_tasks(struct rcu_node *rnp);
+static bool rcu_preempt_need_deferred_qs(struct task_struct *t);
+static void rcu_preempt_deferred_qs(struct task_struct *t);
+static void zero_cpu_stall_ticks(struct rcu_data *rdp);
+static bool rcu_nocb_cpu_needs_barrier(int cpu);
+static struct swait_queue_head *rcu_nocb_gp_get(struct rcu_node *rnp);
+static void rcu_nocb_gp_cleanup(struct swait_queue_head *sq);
+static void rcu_init_one_nocb(struct rcu_node *rnp);
+static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
+			    bool lazy, unsigned long flags);
+static bool rcu_nocb_adopt_orphan_cbs(struct rcu_data *my_rdp,
+				      struct rcu_data *rdp,
+				      unsigned long flags);
+static int rcu_nocb_need_deferred_wakeup(struct rcu_data *rdp);
+static void do_nocb_deferred_wakeup(struct rcu_data *rdp);
+static void rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp);
+static void rcu_spawn_cpu_nocb_kthread(int cpu);
+static void __init rcu_spawn_nocb_kthreads(void);
+#ifdef CONFIG_RCU_NOCB_CPU
+static void __init rcu_organize_nocb_kthreads(void);
+#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
+static bool init_nocb_callback_list(struct rcu_data *rdp);
+static unsigned long rcu_get_n_cbs_nocb_cpu(struct rcu_data *rdp);
+static void rcu_bind_gp_kthread(void);
+static bool rcu_nohz_full_cpu(void);
+static void rcu_dynticks_task_enter(void);
+static void rcu_dynticks_task_exit(void);
+
+/* Forward declarations for tree_stall.h */
+static void record_gp_stall_check_time(void);
+static void rcu_iw_handler(struct irq_work *iwp);
+static void check_cpu_stall(struct rcu_data *rdp);
+static void rcu_check_gp_start_stall(struct rcu_node *rnp, struct rcu_data *rdp,
+				     const unsigned long gpssdelay);
+
 #ifdef MODULE_PARAM_PREFIX
 #undef MODULE_PARAM_PREFIX
 #endif
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index e253d11..9790b58 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -392,58 +392,5 @@ struct rcu_state {
 #endif /* #else #ifdef CONFIG_TRACING */
 
 int rcu_dynticks_snap(struct rcu_data *rdp);
-
-/* Forward declarations for tree_plugin.h */
-static void rcu_bootup_announce(void);
-static void rcu_qs(void);
-static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp);
-#ifdef CONFIG_HOTPLUG_CPU
-static bool rcu_preempt_has_tasks(struct rcu_node *rnp);
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-static int rcu_print_task_exp_stall(struct rcu_node *rnp);
-static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp);
-static void rcu_flavor_sched_clock_irq(int user);
 void call_rcu(struct rcu_head *head, rcu_callback_t func);
-static void dump_blkd_tasks(struct rcu_node *rnp, int ncheck);
-static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags);
-static void rcu_preempt_boost_start_gp(struct rcu_node *rnp);
-static void invoke_rcu_callbacks_kthread(void);
-static bool rcu_is_callbacks_kthread(void);
-static void __init rcu_spawn_boost_kthreads(void);
-static void rcu_prepare_kthreads(int cpu);
-static void rcu_cleanup_after_idle(void);
-static void rcu_prepare_for_idle(void);
-static bool rcu_preempt_has_tasks(struct rcu_node *rnp);
-static bool rcu_preempt_need_deferred_qs(struct task_struct *t);
-static void rcu_preempt_deferred_qs(struct task_struct *t);
-static void zero_cpu_stall_ticks(struct rcu_data *rdp);
-static bool rcu_nocb_cpu_needs_barrier(int cpu);
-static struct swait_queue_head *rcu_nocb_gp_get(struct rcu_node *rnp);
-static void rcu_nocb_gp_cleanup(struct swait_queue_head *sq);
-static void rcu_init_one_nocb(struct rcu_node *rnp);
-static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
-			    bool lazy, unsigned long flags);
-static bool rcu_nocb_adopt_orphan_cbs(struct rcu_data *my_rdp,
-				      struct rcu_data *rdp,
-				      unsigned long flags);
-static int rcu_nocb_need_deferred_wakeup(struct rcu_data *rdp);
-static void do_nocb_deferred_wakeup(struct rcu_data *rdp);
-static void rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp);
-static void rcu_spawn_cpu_nocb_kthread(int cpu);
-static void __init rcu_spawn_nocb_kthreads(void);
-#ifdef CONFIG_RCU_NOCB_CPU
-static void __init rcu_organize_nocb_kthreads(void);
-#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
-static bool init_nocb_callback_list(struct rcu_data *rdp);
-static unsigned long rcu_get_n_cbs_nocb_cpu(struct rcu_data *rdp);
-static void rcu_bind_gp_kthread(void);
-static bool rcu_nohz_full_cpu(void);
-static void rcu_dynticks_task_enter(void);
-static void rcu_dynticks_task_exit(void);
-
-/* Forward declarations for tree_stall.h */
-static void record_gp_stall_check_time(void);
-static void rcu_iw_handler(struct irq_work *iwp);
-static void check_cpu_stall(struct rcu_data *rdp);
-static void rcu_check_gp_start_stall(struct rcu_node *rnp, struct rcu_data *rdp,
-				     const unsigned long gpssdelay);
+
-- 
1.7.1