diff options
Diffstat (limited to 'vm')
| -rw-r--r-- | vm/vm_page.c | 16 | ||||
| -rw-r--r-- | vm/vm_resident.c | 9 |
2 files changed, 9 insertions, 16 deletions
diff --git a/vm/vm_page.c b/vm/vm_page.c index 4c11ea7a..2a9f27b2 100644 --- a/vm/vm_page.c +++ b/vm/vm_page.c @@ -1620,10 +1620,6 @@ vm_page_boot_table_size(void) nr_pages = 0; for (i = 0; i < vm_page_segs_size; i++) { - /* XXX */ - if (i > VM_PAGE_SEG_DIRECTMAP) - continue; - nr_pages += vm_page_atop(vm_page_boot_seg_size(&vm_page_boot_segs[i])); } @@ -1643,10 +1639,6 @@ vm_page_table_size(void) nr_pages = 0; for (i = 0; i < vm_page_segs_size; i++) { - /* XXX */ - if (i > VM_PAGE_SEG_DIRECTMAP) - continue; - nr_pages += vm_page_atop(vm_page_seg_size(&vm_page_segs[i])); } @@ -1684,10 +1676,6 @@ vm_page_mem_size(void) total = 0; for (i = 0; i < vm_page_segs_size; i++) { - /* XXX */ - if (i > VM_PAGE_SEG_DIRECTMAP) - continue; - total += vm_page_seg_size(&vm_page_segs[i]); } @@ -1703,10 +1691,6 @@ vm_page_mem_free(void) total = 0; for (i = 0; i < vm_page_segs_size; i++) { - /* XXX */ - if (i > VM_PAGE_SEG_DIRECTMAP) - continue; - total += vm_page_segs[i].nr_free_pages; } diff --git a/vm/vm_resident.c b/vm/vm_resident.c index e276fe68..e3e34dc3 100644 --- a/vm/vm_resident.c +++ b/vm/vm_resident.c @@ -771,6 +771,15 @@ vm_page_t vm_page_grab(void) simple_lock(&vm_page_queue_free_lock); + /* + * XXX Mach has many modules that merely assume memory is + * directly mapped in kernel space. Instead of updating all + * users, we assume those which need specific physical memory + * properties will wire down their pages, either because + * they can't be paged (not part of an object), or with + * explicit VM calls. The strategy is then to let memory + * pressure balance the physical segments with pageable pages. + */ mem = vm_page_alloc_pa(0, VM_PAGE_SEL_DIRECTMAP, VM_PT_KERNEL); if (mem == NULL) { |