From: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu>
Date: Sun, 21 Jan 2007 23:47:43 +0000 (-0500)
Subject: Unionfs: Include file
X-Git-Url: https://git.fsl.cs.sunysb.edu/?a=commitdiff_plain;h=0621443244f09d74f6981bffa403644fc8c516d0;p=unionfs-3.6.y.git

Unionfs: Include file

Global include file - can be included from userspace by utilities.

Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu>
Signed-off-by: David Quigley <dquigley@fsl.cs.sunysb.edu>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
---

diff --git a/include/linux/magic.h b/include/linux/magic.h
index e15192cb9cf..1d7370bf474 100644
--- a/include/linux/magic.h
+++ b/include/linux/magic.h
@@ -48,6 +48,8 @@
 #define REISER2FS_SUPER_MAGIC_STRING	"ReIsEr2Fs"
 #define REISER2FS_JR_SUPER_MAGIC_STRING	"ReIsEr3Fs"
 
+#define UNIONFS_SUPER_MAGIC 0xf15f083d
+
 #define SMB_SUPER_MAGIC		0x517B
 #define CGROUP_SUPER_MAGIC	0x27e0eb
 
diff --git a/include/linux/union_fs.h b/include/linux/union_fs.h
new file mode 100644
index 00000000000..b724031e5f1
--- /dev/null
+++ b/include/linux/union_fs.h
@@ -0,0 +1,18 @@
+#ifndef _LINUX_UNION_FS_H
+#define _LINUX_UNION_FS_H
+
+#define UNIONFS_VERSION  "2.0"
+/*
+ * DEFINITIONS FOR USER AND KERNEL CODE:
+ */
+# define UNIONFS_IOCTL_INCGEN		_IOR(0x15, 11, int)
+# define UNIONFS_IOCTL_QUERYFILE	_IOR(0x15, 15, int)
+
+/* We don't support normal remount, but unionctl uses it. */
+# define UNIONFS_REMOUNT_MAGIC		0x4a5a4380
+
+/* should be at least LAST_USED_UNIONFS_PERMISSION<<1 */
+#define MAY_NFSRO			16
+
+#endif /* _LINUX_UNIONFS_H */
+