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-rw-r--r--arch/ppc64/mm/hash_utils.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/ppc64/mm/hash_utils.c b/arch/ppc64/mm/hash_utils.c
index e48be12..0a0f970 100644
--- a/arch/ppc64/mm/hash_utils.c
+++ b/arch/ppc64/mm/hash_utils.c
@@ -298,24 +298,23 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
int local = 0;
cpumask_t tmp;
+ if ((ea & ~REGION_MASK) > EADDR_MASK)
+ return 1;
+
switch (REGION_ID(ea)) {
case USER_REGION_ID:
user_region = 1;
mm = current->mm;
- if ((ea > USER_END) || (! mm))
+ if (! mm)
return 1;
vsid = get_vsid(mm->context.id, ea);
break;
case IO_REGION_ID:
- if (ea > IMALLOC_END)
- return 1;
mm = &ioremap_mm;
vsid = get_kernel_vsid(ea);
break;
case VMALLOC_REGION_ID:
- if (ea > VMALLOC_END)
- return 1;
mm = &init_mm;
vsid = get_kernel_vsid(ea);
break;
@@ -362,7 +361,7 @@ void flush_hash_page(unsigned long context, unsigned long ea, pte_t pte,
unsigned long vsid, vpn, va, hash, secondary, slot;
unsigned long huge = pte_huge(pte);
- if ((ea >= USER_START) && (ea <= USER_END))
+ if (ea < KERNELBASE)
vsid = get_vsid(context, ea);
else
vsid = get_kernel_vsid(ea);
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