tree 791a21c066ed667676422395b4145c53a1dc2c28
parent c0007f1a65762eaf55633d403b380130ec60adad
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1177682503 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1177682503 +0200

[S390] Minor fault path optimization.

The minor fault path has grown a lot in terms of cycles. In particular
the kprobes hook is very costly. Optimize the path to save a couple of
cycles. If kprobes is enabled more than 300 cycles can be avoided if
kprobes_running() is false.

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