diff options
Diffstat (limited to 'arch/parisc/include/asm/pgalloc.h')
| -rw-r--r-- | arch/parisc/include/asm/pgalloc.h | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h index f213f5b4c423..3a08eae3318f 100644 --- a/arch/parisc/include/asm/pgalloc.h +++ b/arch/parisc/include/asm/pgalloc.h @@ -26,7 +26,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) if (likely(pgd != NULL)) { memset(pgd, 0, PAGE_SIZE<<PGD_ALLOC_ORDER); -#ifdef CONFIG_64BIT +#if CONFIG_PGTABLE_LEVELS == 3 actual_pgd += PTRS_PER_PGD; /* Populate first pmd with allocated memory. We mark it * with PxD_FLAG_ATTACHED as a signal to the system that this @@ -45,13 +45,13 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { -#ifdef CONFIG_64BIT +#if CONFIG_PGTABLE_LEVELS == 3 pgd -= PTRS_PER_PGD; #endif free_pages((unsigned long)pgd, PGD_ALLOC_ORDER); } -#if PT_NLEVELS == 3 +#if CONFIG_PGTABLE_LEVELS == 3 /* Three Level Page Table Support for pmd's */ @@ -72,12 +72,15 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) { -#ifdef CONFIG_64BIT if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED) - /* This is the permanent pmd attached to the pgd; - * cannot free it */ + /* + * This is the permanent pmd attached to the pgd; + * cannot free it. + * Increment the counter to compensate for the decrement + * done by generic mm code. + */ + mm_inc_nr_pmds(mm); return; -#endif free_pages((unsigned long)pmd, PMD_ORDER); } @@ -99,7 +102,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) { -#ifdef CONFIG_64BIT +#if CONFIG_PGTABLE_LEVELS == 3 /* preserve the gateway marker if this is the beginning of * the permanent pmd */ if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED) |