tree 198ebf12ab17cdc6bdd12386fad95d9c09fb3c83
parent d3bf37955d46718ee1a7f1fc69f953d2328ba7c2
author Michael Holzheu <holzheu@linux.vnet.ibm.com> 1319984198 +0100
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1319984201 +0100

[S390] Force PSW restart on online CPU

PSW restart can be triggered on offline CPUs. If this happens, currently
the PSW restart code fails, because functions like smp_processor_id()
do not work on offline CPUs. This patch fixes this as follows:

If PSW restart is triggered on an offline CPU, the PSW restart (sigp restart)
is done a second time on another CPU that is online and the old CPU is
stopped afterwards.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>