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queue cancellations until there is room to submit them instead of dropping requests when the SQ is full. keep weak references until cancellation completes, and keep external pollers awake while requests are waiting to be submitted.
adds driver and runtime APIs for submitting a whole linked chain with soft or hard links. unsupported submissions return the original operations. tracks predecessors so cancellation reaches pending members, including hard-linked successors.
uses a private pipe and reusable linked splice operations for eligible Linux stream copies. falls back to buffered copying when splice is unavailable or unsupported, forwarding any bytes left in the pipe before returning to the reader.
Member
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I'd prefer to have the lower level linked op submission change in its own pr as we've been discussing this feature multiple times and it's quite hard to decide the api |
Contributor
Author
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@George-Miao done! |
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