s390/barrier: Use alternative instead of ifdef for bcr_serialize()

Use an alternative to implement bcr_serialize() and use alternative
patching to select between serialization and fast-serialization
depending on the corresponding facility bit.

Reviewed-by: Jan Polensky <japo@linux.ibm.com>
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

0 files changed, 0 insertions, 0 deletions