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| author | Pavel Begunkov <asml.silence@gmail.com> | 2020-07-18 11:32:51 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-07-24 13:00:45 -0600 |
| commit | dd6f843a9fca8f225c86fee5f50da429c369c045 (patch) | |
| tree | b630dd42ef994b21606a17f0c9ecb18b5fed08d4 /include/linux/sched/task.h | |
| parent | cbcf72148da4af55ea81cfb351ea7c026ff1014f (diff) | |
tasks: add put_task_struct_many()
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>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/sched/task.h')
| -rw-r--r-- | include/linux/sched/task.h | 6 |
1 files changed, 6 insertions, 0 deletions
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 |