tree de91adcab7bc1b86dfc40194595d827f0c1dc41b
parent 1bca09f7144450989e409c82ff0db83dddf489ac
author Heiko Carstens <heiko.carstens@de.ibm.com> 1363275965 +0100
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1366200449 +0200

s390/mm: speedup storage key initialization

Use sske with multiple block control to initialize storage keys within
a 1 MB frame at once.
It turned out that the sske with mb=1 is an order of magnitude faster
than pfmf. This is only an issue for very large systems (several 100GB)
where storage key initialization could last more than a minute.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>