On Sun, 7 Jun 2009 15:05:57 -0400, Jim Mulder wrote:
>
>  The enhancement in z/OS 1.11 is that Batch Allocation/Unallocation
>processing is checking to see if the program name is exactly 'IEFBR14',
>and if so, for migrated data sets whose DISP is DELETE, it simply
>HDELETEs them without HRECALLing them.
>
I stand corrected.  Thanks.

So this makes IEFBR14 a sort of reserved word.  What happens if a
programmer writes his own program named IEFBR14 which actually
opens the data set?  A new form of Sx13 ABEND?  Does the enhancement
check whether IEFBR14 is loaded from a STEPLIB?

Now that IEFBR14 will be handled specially, will the enhancement
skip executing it?  One contributor to these lists suggested a few
months ago that the initiator should detect IEFBR14 and skip
execution to avoid some overhead.  There was a consensus that the
test might introduce more overhead than it saves, and also
introduce other unexpected behavior.

Is there similar assistance for other environments?  It has been
suggested that for Unix System Services or IRXJCL the programmer
use BPXWDYN( ALLOC DELETE ); BPXWDYN( FREE ); but this results
in HRECALL.

The design meetings must have been interesting.

Thanks again,
gil

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