The slot information of base page size hash pte is stored in the
pgtable_t w.r.t transparent hugepage. We need to make sure we don't
index beyond pgtable_t size.
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
---
arch/powerpc/mm/hugepage-hash64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/mm/hugepage-hash64.c
b/arch/powerpc/mm/hugepage-hash64.c
index 1f666de0110a..baf1301ded0c 100644
--- a/arch/powerpc/mm/hugepage-hash64.c
+++ b/arch/powerpc/mm/hugepage-hash64.c
@@ -71,7 +71,7 @@ int __hash_page_thp(unsigned long ea, unsigned long access,
unsigned long vsid,
*/
shift = mmu_psize_defs[psize].shift;
index = (ea & ~HPAGE_PMD_MASK) >> shift;
- BUG_ON(index >= 4096);
+ BUG_ON(index >= PTE_FRAG_SIZE);
vpn = hpt_vpn(ea, vsid, ssize);
hpte_slot_array = get_hpte_slot_array(pmdp);
--
2.5.0
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
