From: Pavel Begunkov <asml.silence@gmail.com>
To: Jens Axboe <axboe@kernel.dk>,
io-uring@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 4/5] io_uring: add missing io_req_cancelled()
Date: Tue, 11 Feb 2020 23:01:57 +0300 [thread overview]
Message-ID: <0a34342f63cd7a535cc54e5e1fe3ab73907a7da9.1581450491.git.asml.silence@gmail.com> (raw)
In-Reply-To: <cover.1581450491.git.asml.silence@gmail.com>
fallocate_finish() is missing cancellation check. Add it.
It's safe to do that, as only flags setup and sqe fields copy are done
before it gets into __io_fallocate().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
fs/io_uring.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/io_uring.c b/fs/io_uring.c
index f3108bce4afe..b33f2521040e 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2529,6 +2529,8 @@ static void io_fallocate_finish(struct io_wq_work **workptr)
struct io_kiocb *req = container_of(*workptr, struct io_kiocb, work);
struct io_kiocb *nxt = NULL;
+ if (io_req_cancelled(req))
+ return;
__io_fallocate(req, &nxt);
if (nxt)
io_wq_assign_next(workptr, nxt);
@@ -2905,6 +2907,7 @@ static void io_close_finish(struct io_wq_work **workptr)
struct io_kiocb *req = container_of(*workptr, struct io_kiocb, work);
struct io_kiocb *nxt = NULL;
+ /* not cancellable, don't io_req_cancelled() */
__io_close_finish(req, &nxt);
if (nxt)
io_wq_assign_next(workptr, nxt);
--
2.24.0
next prev parent reply other threads:[~2020-02-11 20:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-11 20:01 [PATCH 0/5] async punting improvements for io_uring Pavel Begunkov
2020-02-11 20:01 ` [PATCH 1/5] io_uring: remove REQ_F_MUST_PUNT Pavel Begunkov
2020-02-11 20:01 ` [PATCH 2/5] io_uring: don't call work.func from sync ctx Pavel Begunkov
2020-02-11 20:01 ` [PATCH 3/5] io_uring: fix reassigning work.task_pid from io-wq Pavel Begunkov
2020-02-11 20:21 ` Jens Axboe
2020-02-11 20:57 ` Pavel Begunkov
2020-02-11 20:59 ` Jens Axboe
2020-02-11 20:01 ` Pavel Begunkov [this message]
2020-02-11 20:01 ` [PATCH 5/5] io_uring: purge req->in_async Pavel Begunkov
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