Jeremy, can you please verify this documentation is correct?
--- /dev/null
+<samba:parameter name="defer sharing violations"
+ context="G"
+ type="boolean"
+ developer="1"
+ xmlns:samba="http://samba.org/common">
+<description>
+ <para>
+ Windows allows specifying how a file will be shared with
+ other processes when it is opened. Sharing violations occur when
+ a file is opened by a different process using options that violate
+ the share settings specified by other processes.
+ </para>
+
+ <para>Unix by default does not have this behaviour.</para>
+
+ <para>
+ There should be no reason to turn off this parameter.
+ </para>
+</description>
+
+<value type="default">True</value>
+</samba:parameter>