tree 38728f02d84d91c9ce6e4bb06e871cc19cbe57cd
parent 15e86b0c752d50e910b2cca6e83ce74c4440d06c
author Holger Smolinski <Holger.Smolinski@de.ibm.com> 1223667207 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1223667241 +0200

[S390] console flush on panic / reboot

The s390 console drivers use the unblank callback of the console
structure to flush the console buffer. In case of a panic or a
reboot the CPU doing the callback can block on the console i/o.
The other CPUs in the system continue to work. For panic this is
not a good idea.

Replace the unblank callback with proper panic/reboot notifier.
These get called after all but one CPU have been stopped.

Signed-off-by: Holger Smolinski <Holger.Smolinski@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>