[POWERPC] viopath: Use completion

Use a completion instead of abusing a semaphore for hypervisor event
completion in viopath.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Christoph Hellwig 2007-05-14 01:50:27 +10:00 committed by Paul Mackerras
commit 9d561ed46e