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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2013-12-03 14:57:18 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-12-16 14:37:45 +0100
commitc63badebfebacdba827ab1cc1d420fc81bd8d818 (patch)
tree6bc09659dd889c7d85b09e7d1283cfecf08859a8 /drivers
parent1c182a628075af7431edb8155601740867b5ae51 (diff)
s390: optimize control register update
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>
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