+/*
+ *yaffs_UpdateParent() handles fixing a directories mtime and ctime when a new
+ * link (ie. name) is created or deleted in the directory.
+ *
+ * ie.
+ * create dir/a : update dir's mtime/ctime
+ * rm dir/a: update dir's mtime/ctime
+ * modify dir/a: don't update dir's mtimme/ctime
+ *
+ * This can be handled immediately or defered. Defering helps reduce the number
+ * of updates when many files in a directory are changed within a brief period.
+ *
+ * If the directory updating is defered then yaffs_UpdateDirtyDirecories must be
+ * called periodically.
+ */
+
+static void yaffs_UpdateParent(yaffs_Object *obj)
+{
+ yaffs_Device *dev;
+ if(!obj)
+ return;
+
+ dev = obj->myDev;
+ obj->dirty = 1;
+ obj->yst_mtime = obj->yst_ctime = Y_CURRENT_TIME;
+ if(dev->param.deferDirectoryUpdate){
+ struct ylist_head *link = &obj->variant.directoryVariant.dirty;
+
+ if(ylist_empty(link)){
+ ylist_add(link,&dev->dirtyDirectories);
+ T(YAFFS_TRACE_BACKGROUND, (TSTR("Added object %d to dirty directories" TENDSTR),obj->objectId));
+ }
+
+ } else
+ yaffs_UpdateObjectHeader(obj,NULL,0,0,0);
+}
+
+void yaffs_UpdateDirtyDirectories(yaffs_Device *dev)
+{
+ struct ylist_head *link;
+ yaffs_Object *obj;
+ yaffs_DirectoryStructure *dS;
+ yaffs_ObjectVariant *oV;
+
+ T(YAFFS_TRACE_BACKGROUND, (TSTR("Update dirty directories" TENDSTR)));
+
+ while(!ylist_empty(&dev->dirtyDirectories)){
+ link = dev->dirtyDirectories.next;
+ ylist_del_init(link);
+
+ dS=ylist_entry(link,yaffs_DirectoryStructure,dirty);
+ oV = ylist_entry(dS,yaffs_ObjectVariant,directoryVariant);
+ obj = ylist_entry(oV,yaffs_Object,variant);
+
+ T(YAFFS_TRACE_BACKGROUND, (TSTR("Update directory %d" TENDSTR), obj->objectId));
+
+ if(obj->dirty)
+ yaffs_UpdateObjectHeader(obj,NULL,0,0,0);
+ }
+}