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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2013-03-14 15:46:05 (GMT) |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2013-04-17 12:07:29 (GMT) |
| commit | f7f8d7e51d3c31426ee006c38d5b0ae3c9b8733e (patch) | |
| tree | de91adcab7bc1b86dfc40194595d827f0c1dc41b /arch/s390/include/asm/bitops.h | |
| parent | 1bca09f7144450989e409c82ff0db83dddf489ac (diff) | |
| download | linux-fsl-qoriq-f7f8d7e51d3c31426ee006c38d5b0ae3c9b8733e.tar.xz | |
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>
Diffstat (limited to 'arch/s390/include/asm/bitops.h')
0 files changed, 0 insertions, 0 deletions