Messages in this thread Patch in this message | | | From | Ingo Molnar <> | Subject | [PATCH 52/53] sched/headers: Move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> | Date | Wed, 8 Feb 2017 19:45:23 +0100 |
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These belong into the task lifetime API header.
Cc: 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> --- include/linux/sched.h | 14 -------------- include/linux/sched/task.h | 15 +++++++++++++++ 2 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/include/linux/sched.h b/include/linux/sched.h index 531732bf7b13..fded01c60cf3 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1131,20 +1131,6 @@ static inline int is_global_init(struct task_struct *tsk) extern struct pid *cad_pid; -extern void free_task(struct task_struct *tsk); -#define get_task_struct(tsk) do { atomic_inc(&(tsk)->usage); } while(0) - -extern void __put_task_struct(struct task_struct *t); - -static inline void put_task_struct(struct task_struct *t) -{ - if (atomic_dec_and_test(&t->usage)) - __put_task_struct(t); -} - -struct task_struct *task_rcu_dereference(struct task_struct **ptask); -struct task_struct *try_get_task_struct(struct task_struct **ptask); - /* * Per process flags */ diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index a33a8121da9a..3886ae64148f 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -75,6 +75,21 @@ extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, i struct task_struct *fork_idle(int); extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); +extern void free_task(struct task_struct *tsk); + +#define get_task_struct(tsk) do { atomic_inc(&(tsk)->usage); } while(0) + +extern void __put_task_struct(struct task_struct *t); + +static inline void put_task_struct(struct task_struct *t) +{ + if (atomic_dec_and_test(&t->usage)) + __put_task_struct(t); +} + +struct task_struct *task_rcu_dereference(struct task_struct **ptask); +struct task_struct *try_get_task_struct(struct task_struct **ptask); + #ifdef CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT extern int arch_task_struct_size __read_mostly; -- 2.7.4
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