tree aa0c80fde4a271d8a366afc76912c5dacdb7542a
parent d96221ab1e7d86dc0d4666466979117cd1915386
author Heiko Carstens <heiko.carstens@de.ibm.com> 1267220263 +0100
committer Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> 1267220251 +0100

[S390] Cleanup struct _lowcore usage and defines.

Use asm offsets to make sure the offset defines to struct _lowcore and
its layout don't get out of sync.
Also add a BUILD_BUG_ON() which checks that the size of the structure
is sane.
And while being at it change those sites which use odd casts to access
the current lowcore. These should use S390_lowcore instead.

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