tree e6fce72c43759d97eb80f0af1ae08c0e6058e6bc
parent b21597d0268983f8f9e8b563494f75490403e948
author Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> 1239716176 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1239716241 +0200

[S390] s390: move machine flags to lowcore

Currently the storage of the machine flags is a globally exported unsigned
long long variable. By moving the storage location into the lowcore struct we
allow assembler code to check machine_flags directly even without needing a
register. Addtionally the lowcore and therefore the machine flags too will be
in cache most of the time.

Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>