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From:   arni@dagur.eu
To:     io-uring@vger.kernel.org
Cc:     axboe@kernel.dk
Subject: [PATCH] io_uring: Add vmsplice support
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Date:   Tue, 05 Jan 2021 23:00:13 GMT
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This patchset is a followup from my last email, which may be found at
https://lore.kernel.org/io-uring/20210103222117.905850-1-arni@dagur.eu/

Thanks for you feedback, Jens. I have modified the test app on my end as
well, and it now looks like the following
https://gist.githubusercontent.com/ArniDagur/3392a787e89e78ba8ff739ff0f8476d5/raw/d01d19bb6fdc3defea59ae7c2a2c3d29682d8520/main.c

As you suggested, I now always return -EGAIN when force_nonblock is set.
In addition, req_set_fail_links() is now called when less than the
entirety of the buffer is spliced, and io_req_complete() is called at
the end.