[PATCH 1/2] io_uring: check tctx->in_idle when decrementing inflight_tracked
From: Jens Axboe <axboe@kernel.dk>
Date: 2021-12-09 16:00:02
Also in:
stable
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
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> --- 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);
--
2.34.1