linux

iv/linux

History

Heiko Carstens 08d0796827 [S390] Standby cpu activation/deactivation.

Add a new interface so that cpus can be put into standby state and
configured state.
Only offline cpus can be put into standby state or configured state.
For that the new percpu sysfs attribute "configure" must be used.
To put a cpu in standby state a "0" must be written to the attribute.
In order to switch it into configured state a "1" must be written to
the attribute.
Only cpus in configured state can be brought online.
In addition this patch introduces a static mapping of physical to
logical cpus. As a result only the sysfs directories of present cpus
will be created. To scan for new cpus the new sysfs attribute "rescan"
must be used.
Writing to /sys/devices/system/cpu/rescan will trigger a rescan of
cpus and will create directories for new cpus.

On IPL only configured cpus will be used. And on reboot/shutdown all
cpus will remain in their current state (configured/standby).

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

2008-01-26 14:11:09 +01:00

appldata

[S390] appldata: remove unused binary sysctls.

2007-11-20 11:13:45 +01:00

boot

[PATCH] use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh

2005-06-23 09:45:07 -07:00

crypto

[CRYPTO] s390-aes: Use correct encrypt/decrypt function in fallback

2008-01-11 08:16:37 +11:00

hypfs

Kobject: convert arch/* from kobject_unregister() to kobject_put()