upstream/opnsense-src
1
0
Fork 0
mirror of https://github.com/opnsense/src.git synced 2026-04-23 07:07:24 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

- Increase the scope of the source object lock in vm_map_copy_entry().

Browse source
This commit is contained in:
Alan Cox 2003-11-03 00:59:54 +00:00
parent 806a364b8b
commit a89c6258bb
1 changed files with 3 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
sys/vm/vm_map.c
View file

@ -2356,20 +2356,18 @@ vm_map_copy_entry(
* Make a copy of the object. * Make a copy of the object.
*/ */
if ((src_object = src_entry->object.vm_object) != NULL) { if ((src_object = src_entry->object.vm_object) != NULL) {
VM_OBJECT_LOCK(src_object);
if ((src_object->handle == NULL) && if ((src_object->handle == NULL) &&
(src_object->type == OBJT_DEFAULT || (src_object->type == OBJT_DEFAULT ||
src_object->type == OBJT_SWAP)) { src_object->type == OBJT_SWAP)) {
VM_OBJECT_LOCK(src_object);
vm_object_collapse(src_object); vm_object_collapse(src_object);
VM_OBJECT_UNLOCK(src_object);
if ((src_object->flags & (OBJ_NOSPLIT|OBJ_ONEMAPPING)) == OBJ_ONEMAPPING) { if ((src_object->flags & (OBJ_NOSPLIT|OBJ_ONEMAPPING)) == OBJ_ONEMAPPING) {
VM_OBJECT_UNLOCK(src_object);
vm_object_split(src_entry); vm_object_split(src_entry);
src_object = src_entry->object.vm_object; src_object = src_entry->object.vm_object;
VM_OBJECT_LOCK(src_object);
} }
} }
VM_OBJECT_LOCK(src_object);
vm_object_reference_locked(src_object); vm_object_reference_locked(src_object);
vm_object_clear_flag(src_object, OBJ_ONEMAPPING); vm_object_clear_flag(src_object, OBJ_ONEMAPPING);
VM_OBJECT_UNLOCK(src_object); VM_OBJECT_UNLOCK(src_object);