From 63809137ebb58f0aa2ce359117422686e3304f45 Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Tue, 12 Jul 2022 21:52:47 +0100 Subject: io_uring: flush notifiers after sendzc Allow to flush notifiers as a part of sendzc request by setting IORING_SENDZC_FLUSH flag. When the sendzc request succeedes it will flush the used [active] notifier. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/e0b4d9a6797e2fd6092824fe42953db7a519bbc8.1657643355.git.asml.silence@gmail.com Signed-off-by: Jens Axboe --- io_uring/io_uring.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'io_uring/io_uring.h') diff --git a/io_uring/io_uring.h b/io_uring/io_uring.h index 66bfd880d07f..cc81a9d1fd4d 100644 --- a/io_uring/io_uring.h +++ b/io_uring/io_uring.h @@ -74,6 +74,7 @@ void io_wq_submit_work(struct io_wq_work *work); void io_free_req(struct io_kiocb *req); void io_queue_next(struct io_kiocb *req); void __io_put_task(struct task_struct *task, int nr); +void io_task_refs_refill(struct io_uring_task *tctx); bool io_match_task_safe(struct io_kiocb *head, struct task_struct *task, bool cancel_all); @@ -270,4 +271,13 @@ static inline void io_put_task(struct task_struct *task, int nr) __io_put_task(task, nr); } +static inline void io_get_task_refs(int nr) +{ + struct io_uring_task *tctx = current->io_uring; + + tctx->cached_refs -= nr; + if (unlikely(tctx->cached_refs < 0)) + io_task_refs_refill(tctx); +} + #endif -- cgit v1.2.3-70-g09d2