在 2021/12/9 下午11:59, Jens Axboe 写道:

If we have someone potentially waiting for tracked requests to finish, ensure that we check in_idle and wake them up appropriately.

Cc: stable@vger.kernel.org Signed-off-by: Jens Axboe axboe@kernel.dk

---

Hi Jens,

I saw every/several( in batching cases)  io_clean_op() followed by an io_put_task() which does the same thing

as this patch, so it seems this one is not neccessary? Correct me if I'm wrong since I haven't touch this code for

a long time.

Regards, Hao

fs/io_uring.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/fs/io_uring.c b/fs/io_uring.c index c4f217613f56..b4d5b8d168bf 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -6640,6 +6640,8 @@ static void io_clean_op(struct io_kiocb *req) struct io_uring_task *tctx = req->task->io_uring; atomic_dec(&tctx->inflight_tracked);

• if (unlikely(atomic_read(&tctx->in_idle)))
  

• 	wake_up(&tctx->wait);
  

  } if (req->flags & REQ_F_CREDS) put_cred(req->creds);