On powerpc 603, there is no hash table so get out of
update_mmu_cache() early.
Signed-off-by: Christophe Leroy <[email protected]>
---
arch/powerpc/mm/book3s32/mmu.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/mm/book3s32/mmu.c b/arch/powerpc/mm/book3s32/mmu.c
index 3a62bf99f93f..c20269be79ec 100644
--- a/arch/powerpc/mm/book3s32/mmu.c
+++ b/arch/powerpc/mm/book3s32/mmu.c
@@ -319,6 +319,8 @@ void hash_preload(struct mm_struct *mm, unsigned long ea)
void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
pte_t *ptep)
{
+ if (!mmu_has_feature(MMU_FTR_HPTE_TABLE))
+ return;
/*
* We don't need to worry about _PAGE_PRESENT here because we are
* called with either mm->page_table_lock held or ptl lock held
--
2.13.3