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Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/include/asm/book3s/64/pgalloc.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
index 827ebce4df90..4746bc68d446 100644
--- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
@@ -73,10 +73,16 @@ static inline void radix__pgd_free(struct mm_struct *mm, pgd_t *pgd)
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
+ pgd_t *pgd;
+
if (radix_enabled())
return radix__pgd_alloc(mm);
- return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
- pgtable_gfp_flags(mm, GFP_KERNEL));
+
+ pgd = kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE),
+ pgtable_gfp_flags(mm, GFP_KERNEL));
+ memset(pgd, 0, PGD_TABLE_SIZE);
+
+ return pgd;
}
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)