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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2006-12-04 15:40:42 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-12-04 15:40:42 +0100 |
| commit | d57de5a36791cb1b7285649c62f183b0d3505f7d (patch) | |
| tree | a1449e94cfaa5490aebd7f2980229a7b67a26023 /arch/s390/lib/uaccess_pt.c | |
| parent | 29b08d2bae854f66d3cfd5f57aaf2e7c2c7fce32 (diff) | |
[S390] Use diag260 for memory size detection.
Avoid the tprot loop if diag260 works and reports that there are no
holes in memory. The tprot instruction can lead to a significant delay
in the ipl process if the virtual guest has a lot of memory and the
host is under memory pressure.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/lib/uaccess_pt.c')
0 files changed, 0 insertions, 0 deletions