[Bf-blender-cvs] [f1ad2ab] master: Minor optimization to BKE_library_tag_unused_linked_data().

[Bastien Montagne]

Commit: f1ad2ab85f6fc800a1d250d9f43a844c7da145eb
Author: Bastien Montagne
Date:   Fri Nov 11 19:32:59 2016 +0100
Branches: master
https://developer.blender.org/rBf1ad2ab85f6fc800a1d250d9f43a844c7da145eb

Minor optimization to BKE_library_tag_unused_linked_data().

===================================================================

M	source/blender/blenkernel/intern/library_query.c

===================================================================

diff --git a/source/blender/blenkernel/intern/library_query.c b/source/blender/blenkernel/intern/library_query.c
index cec7fba..d286c0a 100644
--- a/source/blender/blenkernel/intern/library_query.c
+++ b/source/blender/blenkernel/intern/library_query.c
@@ -1232,6 +1232,10 @@ void BKE_library_tag_unused_linked_data(Main *bmain, const bool do_init_tag)
 
 		while (i--) {
 			for (ID *id = lb_array[i]->first; id; id = id->next) {
+				if (id->tag & LIB_TAG_DOIT) {
+					/* Unused ID (so far), no need to check it further. */
+					continue;
+				}
 				BKE_library_foreach_ID_link(id, foreach_libblock_tag_unused_linked_data_callback, &do_loop, IDWALK_NOP);
 			}
 		}