| 794,7 → 794,12 |
|---|
| uintptr_t base; |
| link_t *cur; |
| ipl_t ipl; |
| int page_flags; |
| int old_frame; |
| |
| /* Flags for the new memory mapping */ |
| page_flags = area_flags_to_page_flags(flags); |
| |
| ipl = interrupts_disable(); |
| mutex_lock(&as->lock); |
| |
| 808,6 → 813,7 |
|---|
| if (area->sh_info || area->backend != &anon_backend) { |
| /* Copying shared areas not supported yet */ |
| /* Copying non-anonymous memory not supported yet */ |
| mutex_unlock(&area->lock); |
| mutex_unlock(&as->lock); |
| interrupts_restore(ipl); |
| return ENOTSUP; |
| 839,11 → 845,13 |
|---|
| pte = page_mapping_find(as, b + j * PAGE_SIZE); |
| ASSERT(pte && PTE_VALID(pte) && |
| PTE_PRESENT(pte)); |
| old_frame = PTE_GET_FRAME_ARCH(pte); |
| |
| /* Remove old mapping and insert the new one */ |
| page_mapping_remove(as, b + j * PAGE_SIZE); |
| page_mapping_insert(as, b + j * PAGE_SIZE, |
| PTE_GET_FRAME(pte), flags); |
| old_frame, page_flags); |
| |
| page_table_unlock(as, false); |
| } |
| } |