Save memory by using a singly-linked list for extraction aliases

[wimlib] / include / wimlib / dentry.h

diff --git a/include/wimlib/dentry.h b/include/wimlib/dentry.h
index 74cb7ad6be1d03f2e4ad30c4cfdad74bc6b20757..c6d1f12d28df0c373c80e61f40330d861204c5ea 100644 (file)
--- a/include/wimlib/dentry.h
+++ b/include/wimlib/dentry.h
@@ -116,10 +116,10 @@ struct wim_dentry {
         * extracted as part of the current extraction operation.  */
        struct list_head d_extraction_list_node;
 
-       /* (Extraction only) Linked list node that connects all dentries being
-        * extracted as aliases of the same inode as part of the current
-        * extraction operation.  */
-       struct list_head d_extraction_alias_node;
+       /* (Extraction only) Pointer to the next alias for this dentry's inode
+        * that needs to be extracted as part of the current extraction
+        * operation, or NULL if this is the last alias.  */
+       struct wim_dentry *d_next_extraction_alias;
 };
 
 static inline bool