diff options
| author | alc <alc@FreeBSD.org> | 2003-01-03 09:15:43 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2003-01-03 09:15:43 +0000 |
| commit | 2db78e226faeecf35e91d2edfbefb583b9759771 (patch) | |
| tree | 5e8cab86ce03148829de88085b464d10707fdf23 /sys/vm/vm_map.c | |
| parent | dd55faeb5ea8ffa4ec04522a8208c2afed82f241 (diff) | |
| download | FreeBSD-src-2db78e226faeecf35e91d2edfbefb583b9759771.zip FreeBSD-src-2db78e226faeecf35e91d2edfbefb583b9759771.tar.gz | |
Lock the vm object when performing vm_object_clear_flag().
Diffstat (limited to 'sys/vm/vm_map.c')
| -rw-r--r-- | sys/vm/vm_map.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c index 9b863de..97d7c6d 100644 --- a/sys/vm/vm_map.c +++ b/sys/vm/vm_map.c @@ -2265,7 +2265,9 @@ vm_map_copy_entry( } vm_object_reference(src_object); + vm_object_lock(src_object); vm_object_clear_flag(src_object, OBJ_ONEMAPPING); + vm_object_unlock(src_object); dst_entry->object.vm_object = src_object; src_entry->eflags |= (MAP_ENTRY_COW|MAP_ENTRY_NEEDS_COPY); dst_entry->eflags |= (MAP_ENTRY_COW|MAP_ENTRY_NEEDS_COPY); @@ -2355,7 +2357,9 @@ vmspace_fork(struct vmspace *vm1) vm_object_deallocate(object); object = old_entry->object.vm_object; } + vm_object_lock(object); vm_object_clear_flag(object, OBJ_ONEMAPPING); + vm_object_unlock(object); /* * Clone the entry, referencing the shared object. |
