diff options
Diffstat (limited to 'sys/vm/vm_map.c')
| -rw-r--r-- | sys/vm/vm_map.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c index eaa65f7..a1f422d3 100644 --- a/sys/vm/vm_map.c +++ b/sys/vm/vm_map.c @@ -460,6 +460,9 @@ vm_map_insert(vm_map_t map, vm_object_t object, vm_ooffset_t offset, KASSERT(object == NULL, ("vm_map_insert: paradoxical MAP_NOFAULT request")); } + if (cow & MAP_DISABLE_SYNCER) + protoeflags |= MAP_ENTRY_NOSYNC; + if (object) { /* * When object is non-NULL, it could be shared with another @@ -539,13 +542,15 @@ vm_map_insert(vm_map_t map, vm_object_t object, vm_ooffset_t offset, * Update the free space hint */ if ((map->first_free == prev_entry) && - (prev_entry->end >= new_entry->start)) + (prev_entry->end >= new_entry->start)) { map->first_free = new_entry; + } - if (cow & (MAP_PREFAULT|MAP_PREFAULT_PARTIAL)) + if (cow & (MAP_PREFAULT|MAP_PREFAULT_PARTIAL)) { pmap_object_init_pt(map->pmap, start, object, OFF_TO_IDX(offset), end - start, cow & MAP_PREFAULT_PARTIAL); + } return (KERN_SUCCESS); } @@ -1026,6 +1031,8 @@ vm_map_madvise(map, start, end, behav) case MADV_NORMAL: case MADV_SEQUENTIAL: case MADV_RANDOM: + case MADV_NOSYNC: + case MADV_AUTOSYNC: modify_map = 1; vm_map_lock(map); break; @@ -1077,6 +1084,12 @@ vm_map_madvise(map, start, end, behav) case MADV_RANDOM: vm_map_entry_set_behavior(current, MAP_ENTRY_BEHAV_RANDOM); break; + case MADV_NOSYNC: + current->eflags |= MAP_ENTRY_NOSYNC; + break; + case MADV_AUTOSYNC: + current->eflags &= ~MAP_ENTRY_NOSYNC; + break; default: break; } |
