diff options
| author | alc <alc@FreeBSD.org> | 2003-09-13 20:07:26 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2003-09-13 20:07:26 +0000 |
| commit | b182e8a6eb2eeed761202acafe91126d5d875c95 (patch) | |
| tree | 19e296ecca528aab8b0bb41ad828cbc567349d55 /sys/vm | |
| parent | 297805438560bbccff99c9bf1c7676644f968c96 (diff) | |
| download | FreeBSD-src-b182e8a6eb2eeed761202acafe91126d5d875c95.zip FreeBSD-src-b182e8a6eb2eeed761202acafe91126d5d875c95.tar.gz | |
There is no need for an atomic increment on the vm object's generation
count in _vm_object_allocate(). (Access to the generation count is
governed by the vm object's lock.) Note: the introduction of the
atomic increment in revision 1.238 appears to be an accident. The
purpose of that commit was to fix an Alpha-specific bug in UMA's
debugging code.
Diffstat (limited to 'sys/vm')
| -rw-r--r-- | sys/vm/vm_object.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c index 6f48b94..fa3cf6f 100644 --- a/sys/vm/vm_object.c +++ b/sys/vm/vm_object.c @@ -198,6 +198,7 @@ _vm_object_allocate(objtype_t type, vm_pindex_t size, vm_object_t object) object->root = NULL; object->type = type; object->size = size; + object->generation = 1; object->ref_count = 1; object->flags = 0; if ((object->type == OBJT_DEFAULT) || (object->type == OBJT_SWAP)) @@ -214,8 +215,6 @@ _vm_object_allocate(objtype_t type, vm_pindex_t size, vm_object_t object) object->backing_object = NULL; object->backing_object_offset = (vm_ooffset_t) 0; - atomic_add_int(&object->generation, 1); - mtx_lock(&vm_object_list_mtx); TAILQ_INSERT_TAIL(&vm_object_list, object, object_list); mtx_unlock(&vm_object_list_mtx); |
