diff options
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/pgalloc.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/pgalloc.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h index 69c5b051734f..dd2cff53a111 100644 --- a/arch/powerpc/include/asm/book3s/64/pgalloc.h +++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h @@ -107,9 +107,25 @@ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) return pud; } +static inline void __pud_free(pud_t *pud) +{ + struct page *page = virt_to_page(pud); + + /* + * Early pud pages allocated via memblock allocator + * can't be directly freed to slab. KFENCE pages have + * both reserved and slab flags set so need to be freed + * kmem_cache_free. + */ + if (PageReserved(page) && !PageSlab(page)) + free_reserved_page(page); + else + kmem_cache_free(PGT_CACHE(PUD_CACHE_INDEX), pud); +} + static inline void pud_free(struct mm_struct *mm, pud_t *pud) { - kmem_cache_free(PGT_CACHE(PUD_CACHE_INDEX), pud); + return __pud_free(pud); } static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) |