[RFC 12/31] mars: add new module vfs_compat

[Thomas Schoebel-Theuer]

Signed-off-by: Thomas Schoebel-Theuer <tst@xxxxxxxxxxxxxxxxxx>
---
 include/linux/brick/vfs_compat.h | 45 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 include/linux/brick/vfs_compat.h

diff --git a/include/linux/brick/vfs_compat.h b/include/linux/brick/vfs_compat.h
new file mode 100644
index 0000000..a119581
--- /dev/null
+++ b/include/linux/brick/vfs_compat.h
@@ -0,0 +1,45 @@
+/*
+ * MARS Long Distance Replication Software
+ *
+ * Copyright (C) 2010-2014 Thomas Schoebel-Theuer
+ * Copyright (C) 2011-2014 1&1 Internet AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _MARS_COMPAT
+#define _MARS_COMPAT
+
+/* TRANSITIONAL compatibility to BOTH the old prepatch
+ * and the new wrappers around vfs_*().
+ */
+#ifndef MARS_MAJOR
+#define __USE_COMPAT
+#endif
+
+#ifdef __USE_COMPAT
+
+int _compat_symlink(const char __user *oldname,
+		    const char __user *newname,
+		    struct timespec *mtime);
+
+int _compat_mkdir(const char __user *pathname,
+		  int mode);
+
+int _compat_rename(const char __user *oldname,
+		   const char __user *newname);
+
+int _compat_unlink(const char __user *pathname);
+
+#else
+#include <linux/syscalls.h>
+#endif
+#endif
-- 
2.6.4

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