MAXMEM_PFN 687 arch/x86/kernel/vmi_32.c vmi_ops.set_linear_mapping(0, (void *)__PAGE_OFFSET, MAXMEM_PFN, 0); MAXMEM_PFN 642 arch/x86/mm/init_32.c if (max_low_pfn > MAXMEM_PFN) { MAXMEM_PFN 644 arch/x86/mm/init_32.c highmem_pages = max_pfn - MAXMEM_PFN; MAXMEM_PFN 645 arch/x86/mm/init_32.c if (highmem_pages + MAXMEM_PFN < max_pfn) MAXMEM_PFN 646 arch/x86/mm/init_32.c max_pfn = MAXMEM_PFN + highmem_pages; MAXMEM_PFN 647 arch/x86/mm/init_32.c if (highmem_pages + MAXMEM_PFN > max_pfn) { MAXMEM_PFN 650 arch/x86/mm/init_32.c pages_to_mb(max_pfn - MAXMEM_PFN), MAXMEM_PFN 654 arch/x86/mm/init_32.c max_low_pfn = MAXMEM_PFN; MAXMEM_PFN 664 arch/x86/mm/init_32.c max_pfn = MAXMEM_PFN;