tree d45d1b73abe94043b74b0028033e689b06ba534c
parent b995913853b98812845b1b82ac5f61ab31d2d7b0
author Alexander Graf <agraf@suse.de> 1310637033 +0200
committer Alexander Graf <agraf@suse.de> 1321289246 +0100

s390x: implement rrbe instruction properly

The rrbe instruction resets the reference bit in the given storage key.
So far, we merely made it a nop and also returned an invalid CC value,
so that the kernel never knew if a page actually got accessed.

This patch implements it properly, flushing the R bit and returning the
correct CC value.

Signed-off-by: Alexander Graf <agraf@suse.de>