[PATCH v2 3/7] tracing: Generalize hist trigger onmax and save action

From: Tom Zanussi The action refactor code allowed actions and handlers to be separated, but the existing onmax handler and save action code is still not flexible enough to handle arbitrary coupling. This change generalizes them and in the process makes additional handlers and actions easier to

[PATCH v2 3/7] tracing: Generalize hist trigger onmax and save action

From: Tom Zanussi The action refactor code allowed actions and handlers to be separated, but the existing onmax handler and save action code is still not flexible enough to handle arbitrary coupling. This change generalizes them and in the process makes additional handlers and actions easier to