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The new request tag allows a block-session client to uniquely correlate acknowledgements with outstanding requests. Until now, this was possible for read and write operations by taking the value of the request's packet-stream offset. However, SYNC and TRIM requests do not carry any packet-stream payload and thereby lack meaningful offset values. By introducing the notion of a 'tag', we can support multiple outstanding requests of any type and don't need to overload the meaning of the 'offset' value. Issue #3274
This source-code repository contains genuine low-level OS components and interfaces of Genode. It solely depends on the framework's base API.