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s390: optimize control register update
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Tue, 3 Dec 2013 13:57:18 +0000 (14:57 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 16 Dec 2013 13:37:45 +0000 (14:37 +0100)
It is less expensive to update control registers 0 and 2 with two
individual stctg/lctlg instructions as with a single one that spans
control register 0, 1 and 2.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

No differences found
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