Messages in this thread Patch in this message | | | From | Pavel Begunkov <> | Subject | [PATCH 1/2] tasks: add put_task_struct_many() | Date | Sat, 18 Jul 2020 11:32:51 +0300 |
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put_task_struct_many() is as put_task_struct() but puts several references at once. Useful to batching it.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> --- include/linux/sched/task.h | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h index 38359071236a..1301077f9c24 100644 --- a/include/linux/sched/task.h +++ b/include/linux/sched/task.h @@ -126,6 +126,12 @@ static inline void put_task_struct(struct task_struct *t) __put_task_struct(t); } +static inline void put_task_struct_many(struct task_struct *t, int nr) +{ + if (refcount_sub_and_test(nr, &t->usage)) + __put_task_struct(t); +} + void put_task_struct_rcu_user(struct task_struct *task); #ifdef CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT -- 2.24.0
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