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From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Tue, 17 Feb 2009 18:24:59 +0000 (UTC)
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Subject: svn commit: r188723 - head/sys/geom/part
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Author: marcel
Date: Tue Feb 17 18:24:58 2009
New Revision: 188723
URL: http://svn.freebsd.org/changeset/base/188723

Log:
  Add a default implementation for pre-check. It should
  always succeed if not implemented.
  
  Pointy hat: marcel

Modified:
  head/sys/geom/part/g_part_if.m

Modified: head/sys/geom/part/g_part_if.m
==============================================================================
--- head/sys/geom/part/g_part_if.m	Tue Feb 17 17:46:43 2009	(r188722)
+++ head/sys/geom/part/g_part_if.m	Tue Feb 17 18:24:58 2009	(r188723)
@@ -1,5 +1,5 @@
 #-
-# Copyright (c) 2006-2008 Marcel Moolenaar
+# Copyright (c) 2006-2009 Marcel Moolenaar
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -40,6 +40,16 @@
 
 INTERFACE g_part;
 
+# Default implementations of methods.
+CODE {
+	static int
+	default_precheck(struct g_part_table *t __unused,
+	    enum g_part_ctl r __unused, struct g_part_parms *p __unused)
+	{
+		return (0);
+	}
+};
+
 # add() - scheme specific processing for the add verb.
 METHOD int add {
 	struct g_part_table *table;
@@ -106,7 +116,7 @@ METHOD int precheck {
 	struct g_part_table *table;
 	enum g_part_ctl req;
 	struct g_part_parms *gpp;
-};
+} DEFAULT default_precheck;
 
 # probe() - probe the provider attached to the given consumer for the
 # existence of the scheme implemented by the G_PART interface handler.