From 6bb30855560e6343e7b88595d7c3159d0f848a04 Mon Sep 17 00:00:00 2001
From: Dylan Yudaken <dylany@meta.com>
Date: Fri, 27 Jan 2023 05:52:24 -0800
Subject: [PATCH] io_uring: if a linked request has REQ_F_FORCE_ASYNC then run
it async
REQ_F_FORCE_ASYNC was being ignored for re-queueing linked
requests. Instead obey that flag.
Signed-off-by: Dylan Yudaken <dylany@meta.com>
Link: https://lore.kernel.org/r/20230127135227.3646353-2-dylany@meta.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
io_uring/io_uring.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index acf6d9680d768..0e42160a3051d 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -1417,10 +1417,12 @@ void io_req_task_submit(struct io_kiocb *req, bool *locked)
{
io_tw_lock(req->ctx, locked);
/* req->task == current here, checking PF_EXITING is safe */
- if (likely(!(req->task->flags & PF_EXITING)))
- io_queue_sqe(req);
- else
+ if (unlikely(req->task->flags & PF_EXITING))
io_req_defer_failed(req, -EFAULT);
+ else if (req->flags & REQ_F_FORCE_ASYNC)
+ io_queue_iowq(req, locked);
+ else
+ io_queue_sqe(req);
}
void io_req_task_queue_fail(struct io_kiocb *req, int ret)
--
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