tree b72d97c2db323ab94399cd2633108c0a00a5da31
parent 8be8cf5b47f72096e42bf88cc3afff7a942a346c
author David Gibson <david@gibson.dropbear.id.au> 1256585071 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1256883657 +1100

powerpc/mm: Make hpte_need_flush() correctly mask for multiple page sizes

Currently, hpte_need_flush() only correctly flushes the given address
for normal pages.  Callers for hugepages are required to mask the
address themselves.

But hpte_need_flush() already looks up the page sizes for its own
reasons, so this is a rather silly imposition on the callers.  This
patch alters it to mask based on the pagesize it has looked up itself,
and removes the awkward masking code in the hugepage caller.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>