C++ (Cpp) pgtable_pmd_page_dtor示例

示例#1

文件： pgtable.c 项目： AlexShiLucky/linux

void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
{
	struct page *page = virt_to_page(pmd);
	paravirt_release_pmd(__pa(pmd) >> PAGE_SHIFT);
	/*
	 * NOTE! For PAE, any changes to the top page-directory-pointer-table
	 * entries need a full cr3 reload to flush.
	 */
#ifdef CONFIG_X86_PAE
	tlb->need_flush_all = 1;
#endif
	pgtable_pmd_page_dtor(page);
	paravirt_tlb_remove_table(tlb, page);
}

示例#2

文件： mmu_context_book3s64.c 项目： EMCAntimatter/linux

static void pmd_frag_destroy(void *pmd_frag)
{
	int count;
	struct page *page;

	page = virt_to_page(pmd_frag);
	/* drop all the pending references */
	count = ((unsigned long)pmd_frag & ~PAGE_MASK) >> PMD_FRAG_SIZE_SHIFT;
	/* We allow PTE_FRAG_NR fragments from a PTE page */
	if (atomic_sub_and_test(PMD_FRAG_NR - count, &page->pt_frag_refcount)) {
		pgtable_pmd_page_dtor(page);
		__free_page(page);
	}
}