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authorIngo Molnar <mingo@kernel.org>2017-02-03 21:37:49 +0100
committerIngo Molnar <mingo@kernel.org>2017-03-03 01:43:46 +0100
commit6bfbaa51ed47774492d83d182a86068cc35aa4c6 (patch)
tree6460d4a4c08ff2f8f43f521d19150a9a604c30a7 /kernel/fork.c
parent901b14bd946a8b7ea211105b6207e082ddd36846 (diff)
sched/headers, RCU: Move rcu_copy_process() from <linux/sched/task.h> to kernel/fork.c
Move rcu_copy_process() into kernel/fork.c, which is the only user of this inline function. This simplifies <linux/sched/task.h> to the level that <linux/sched.h> does not have to be included in it anymore - which change is done in a subsequent patch. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 916e78004b8f..6c463c80e93d 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1465,6 +1465,21 @@ init_task_pid(struct task_struct *task, enum pid_type type, struct pid *pid)
task->pids[type].pid = pid;
}
+static inline void rcu_copy_process(struct task_struct *p)
+{
+#ifdef CONFIG_PREEMPT_RCU
+ p->rcu_read_lock_nesting = 0;
+ p->rcu_read_unlock_special.s = 0;
+ p->rcu_blocked_node = NULL;
+ INIT_LIST_HEAD(&p->rcu_node_entry);
+#endif /* #ifdef CONFIG_PREEMPT_RCU */
+#ifdef CONFIG_TASKS_RCU
+ p->rcu_tasks_holdout = false;
+ INIT_LIST_HEAD(&p->rcu_tasks_holdout_list);
+ p->rcu_tasks_idle_cpu = -1;
+#endif /* #ifdef CONFIG_TASKS_RCU */
+}
+
/*
* This creates a new process as a copy of the old one,
* but does not actually start it yet.