Parameter list for the access control authorization routine

An authorization routine's parameter list points to other information.

The following figure shows how the parameter list points to other information.
Figure 1. How an authorization routine's parameter list points to other information
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The work area (4096 bytes) is obtained once during the startup of Db2 and only released when Db2 is shut down. The work area is shared by all invocations of the RACF access control module.