void pte_fragment_free(unsigned long *table, int kernel) { struct page *page = virt_to_page(table); if (put_page_testzero(page)) { if (!kernel) pgtable_page_dtor(page); free_unref_page(page); } }
static void destroy_pagetable_page(struct mm_struct *mm) { int count; void *pte_frag; struct page *page; pte_frag = mm->context.pte_frag; if (!pte_frag) return; page = virt_to_page(pte_frag); /* drop all the pending references */ count = ((unsigned long)pte_frag & ~PAGE_MASK) >> PTE_FRAG_SIZE_SHIFT; /* We allow PTE_FRAG_NR fragments from a PTE page */ if (page_ref_sub_and_test(page, PTE_FRAG_NR - count)) { pgtable_page_dtor(page); free_unref_page(page); } }
static void __put_single_page(struct page *page) { __page_cache_release(page); free_unref_page(page); }