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);
}
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);
}
}