diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/pgalloc.h | 7 | ||||
| -rw-r--r-- | include/linux/mm.h | 16 |
2 files changed, 22 insertions, 1 deletions
diff --git a/include/asm-generic/pgalloc.h b/include/asm-generic/pgalloc.h index c75d4a753849..879e5f8aa5e9 100644 --- a/include/asm-generic/pgalloc.h +++ b/include/asm-generic/pgalloc.h @@ -169,6 +169,8 @@ static inline pud_t *__pud_alloc_one(struct mm_struct *mm, unsigned long addr) ptdesc = pagetable_alloc(gfp, 0); if (!ptdesc) return NULL; + + pagetable_pud_ctor(ptdesc); return ptdesc_address(ptdesc); } @@ -190,8 +192,11 @@ static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) static inline void __pud_free(struct mm_struct *mm, pud_t *pud) { + struct ptdesc *ptdesc = virt_to_ptdesc(pud); + BUG_ON((unsigned long)pud & (PAGE_SIZE-1)); - pagetable_free(virt_to_ptdesc(pud)); + pagetable_pud_dtor(ptdesc); + pagetable_free(ptdesc); } #ifndef __HAVE_ARCH_PUD_FREE diff --git a/include/linux/mm.h b/include/linux/mm.h index 31dc25d3f6b5..126b54b45442 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -3049,6 +3049,22 @@ static inline spinlock_t *pud_lock(struct mm_struct *mm, pud_t *pud) return ptl; } +static inline void pagetable_pud_ctor(struct ptdesc *ptdesc) +{ + struct folio *folio = ptdesc_folio(ptdesc); + + __folio_set_pgtable(folio); + lruvec_stat_add_folio(folio, NR_PAGETABLE); +} + +static inline void pagetable_pud_dtor(struct ptdesc *ptdesc) +{ + struct folio *folio = ptdesc_folio(ptdesc); + + __folio_clear_pgtable(folio); + lruvec_stat_sub_folio(folio, NR_PAGETABLE); +} + extern void __init pagecache_init(void); extern void free_initmem(void); |