pmd_free_pte_page 1038 arch/arm64/mm/mmu.c 		pmd_free_pte_page(pmdp, next);
pmd_free_pte_page 1061 include/asm-generic/pgtable.h int pmd_free_pte_page(pmd_t *pmd, unsigned long addr);
pmd_free_pte_page   97 lib/ioremap.c  	if (pmd_present(*pmd) && !pmd_free_pte_page(pmd, addr))