How does Havender’s linear ordering for denying the “circular-wait” condition prevent cycles from developing in resource-allocation graphs?
What will be an ideal response?
For a cycle to develop, a process “owning” a higher-numbered resource would have to be able to request a lower-numbered resource; this is disallowed when using Havender’s linear ordering for resource allocation. The orderings will vary at different installations; this affects application portability. If the ordering of the resource does not match the order in which applications need the resource, considerable waste can occur.
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