powerpc: Replace find_linux_pte with find_linux_pte_or_hugepte

Replace find_linux_pte with find_linux_pte_or_hugepte and explicitly
document why we don't need to handle transparent hugepages at callsites.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 7c567be3dd03..af2b9ae07df5 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -260,10 +260,15 @@ static inline unsigned long eeh_token_to_phys(unsigned long token)
 {
         pte_t *ptep;
         unsigned long pa;
+        int hugepage_shift;
 
-        ptep = find_linux_pte(init_mm.pgd, token);
+        /*
+         * We won't find hugepages here, iomem
+         */
+        ptep = find_linux_pte_or_hugepte(init_mm.pgd, token, &hugepage_shift);
         if (!ptep)
                 return token;
+        WARN_ON(hugepage_shift);
         pa = pte_pfn(*ptep) << PAGE_SHIFT;
 
         return pa | (token & (PAGE_SIZE-1));