From: Pavel Begunkov <[email protected]>
To: Jens Axboe <[email protected]>, [email protected]
Subject: [PATCH 02/12] io_uring: reuse io_req_task_queue_fail()
Date: Sun, 28 Feb 2021 22:35:10 +0000 [thread overview]
Message-ID: <10157dd835235e2face0f660b705d1867f16778e.1614551467.git.asml.silence@gmail.com> (raw)
In-Reply-To: <[email protected]>
Use io_req_task_queue_fail() on the fail path of io_req_task_queue().
It's unlikely to happen, so don't care about additional overhead, but
allows to keep all the req->result invariant in a single function.
Signed-off-by: Pavel Begunkov <[email protected]>
---
fs/io_uring.c | 18 +++++++-----------
1 file changed, 7 insertions(+), 11 deletions(-)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index ad2ddbd22d62..528ab1666eb5 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1986,25 +1986,21 @@ static void io_req_task_submit(struct callback_head *cb)
__io_req_task_submit(req);
}
-static void io_req_task_queue(struct io_kiocb *req)
+static void io_req_task_queue_fail(struct io_kiocb *req, int ret)
{
- int ret;
+ req->result = ret;
+ req->task_work.func = io_req_task_cancel;
- req->task_work.func = io_req_task_submit;
- ret = io_req_task_work_add(req);
- if (unlikely(ret)) {
- req->result = -ECANCELED;
+ if (unlikely(io_req_task_work_add(req)))
io_req_task_work_add_fallback(req, io_req_task_cancel);
- }
}
-static void io_req_task_queue_fail(struct io_kiocb *req, int ret)
+static void io_req_task_queue(struct io_kiocb *req)
{
- req->result = ret;
- req->task_work.func = io_req_task_cancel;
+ req->task_work.func = io_req_task_submit;
if (unlikely(io_req_task_work_add(req)))
- io_req_task_work_add_fallback(req, io_req_task_cancel);
+ io_req_task_queue_fail(req, -ECANCELED);
}
static inline void io_queue_next(struct io_kiocb *req)
--
2.24.0
next prev parent reply other threads:[~2021-02-28 22:40 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-28 22:35 [PATCH RESEND for-next 00/12] 5.13 first batch Pavel Begunkov
2021-02-28 22:35 ` [PATCH 01/12] io_uring: avoid taking ctx refs for task-cancel Pavel Begunkov
2021-02-28 22:35 ` Pavel Begunkov [this message]
2021-02-28 22:35 ` [PATCH 03/12] io_uring: further deduplicate file slot selection Pavel Begunkov
2021-02-28 22:35 ` [PATCH 04/12] io_uring: add a helper failing not issued requests Pavel Begunkov
2021-02-28 22:35 ` [PATCH 05/12] io_uring: refactor provide/remove buffer locking Pavel Begunkov
2021-02-28 22:35 ` [PATCH 06/12] io_uring: don't restirct issue_flags for io_openat Pavel Begunkov
2021-02-28 22:35 ` [PATCH 07/12] io_uring: use better types for cflags Pavel Begunkov
2021-02-28 22:35 ` [PATCH 08/12] io_uring: refactor out send/recv async setup Pavel Begunkov
2021-02-28 22:35 ` [PATCH 09/12] io_uring: untie alloc_async_data and needs_async_data Pavel Begunkov
2021-02-28 22:35 ` [PATCH 10/12] io_uring: rethink def->needs_async_data Pavel Begunkov
2021-02-28 22:35 ` [PATCH 11/12] io_uring: merge defer_prep() and prep_async() Pavel Begunkov
2021-02-28 22:35 ` [PATCH 12/12] io_uring: simplify io_resubmit_prep() Pavel Begunkov
2021-03-01 23:53 ` [PATCH RESEND for-next 00/12] 5.13 first batch Jens Axboe
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