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io_uring: clear IOCB_WAITQ for non -EIOCBQUEUED return
The callback can only be armed, if we get -EIOCBQUEUED returned. It's important that we clear the WAITQ bit for other cases, otherwise we can queue for async retry and filemap will assume that we're armed and return -EAGAIN instead of just blocking for the IO. Cc: stable@vger.kernel.org # 5.9+ Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@ -3286,6 +3286,7 @@ static int io_read(struct io_kiocb *req, unsigned int issue_flags)
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if (ret == -EIOCBQUEUED)
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if (ret == -EIOCBQUEUED)
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return 0;
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return 0;
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/* we got some bytes, but not all. retry. */
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/* we got some bytes, but not all. retry. */
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kiocb->ki_flags &= ~IOCB_WAITQ;
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} while (ret > 0 && ret < io_size);
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} while (ret > 0 && ret < io_size);
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done:
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done:
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kiocb_done(kiocb, ret, issue_flags);
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kiocb_done(kiocb, ret, issue_flags);
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