[PPC64] Hugepage bugfix

[William Lee Irwin III]

On Tue, Jan 11, 2005 at 02:55:20AM +1100, David Gibson wrote:
> Andrew, Linus, please apply:
> Fix a stupid unbalanced lock bug in the ppc64 hugepage code.  Lead
> rapidly to a crash if both CONFIG_HUGETLB_PAGE and CONFIG_PREEMPT were
> enabled (even without actually using hugepages at all).
> Signed-off-by: David Gibson <dwg at au1.ibm.com>

Acked-by: William Irwin <wli at holomorphy.com>