From: Pavel Begunkov <[email protected]>
To: Jens Axboe <[email protected]>,
[email protected], [email protected]
Subject: [PATCH 2/2] io_uring: fix FORCE_ASYNC req preparation
Date: Sun, 17 May 2020 14:02:12 +0300 [thread overview]
Message-ID: <04738fd6d68c70df097d78539856e66986831e7f.1589712727.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>
As for other not inlined requests, alloc req->io for FORCE_ASYNC reqs,
so they can be prepared properly.
Signed-off-by: Pavel Begunkov <[email protected]>
---
fs/io_uring.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 9e81781d7632..3d0a08560689 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5692,9 +5692,15 @@ static void io_queue_sqe(struct io_kiocb *req, const struct io_uring_sqe *sqe)
io_double_put_req(req);
}
} else if (req->flags & REQ_F_FORCE_ASYNC) {
- ret = io_req_defer_prep(req, sqe);
- if (unlikely(ret < 0))
- goto fail_req;
+ if (!req->io) {
+ ret = -EAGAIN;
+ if (io_alloc_async_ctx(req))
+ goto fail_req;
+ ret = io_req_defer_prep(req, sqe);
+ if (unlikely(ret < 0))
+ goto fail_req;
+ }
+
/*
* Never try inline submit of IOSQE_ASYNC is set, go straight
* to async execution.
--
2.24.0
next prev parent reply other threads:[~2020-05-17 11:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-17 11:02 [PATCH for-5.7 0/2] fortify async punt preparation Pavel Begunkov
2020-05-17 11:02 ` [PATCH 1/2] io_uring: don't prepare DRAIN reqs twice Pavel Begunkov
2020-05-17 11:02 ` Pavel Begunkov [this message]
2020-05-17 15:23 ` [PATCH for-5.7 0/2] fortify async punt preparation Jens Axboe
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