On powerpc 603, there is no hash table so get out of update_mmu_cache() early.
Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr> --- 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