From: Josef "Jeff" Sipek <[email protected]>
Global include file - can be included from userspace by utilities.
Signed-off-by: Josef "Jeff" Sipek <[email protected]>
Signed-off-by: David Quigley <[email protected]>
Signed-off-by: Erez Zadok <[email protected]>
---
include/linux/magic.h | 2 ++
include/linux/union_fs.h | 18 ++++++++++++++++++
2 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/include/linux/magic.h b/include/linux/magic.h
index b78bbf4..ab4261c 100644
--- a/include/linux/magic.h
+++ b/include/linux/magic.h
@@ -33,6 +33,8 @@
#define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs"
#define REISER2FS_JR_SUPER_MAGIC_STRING "ReIsEr3Fs"
+#define UNIONFS_SUPER_MAGIC 0xf15f083d
+
#define SMB_SUPER_MAGIC 0x517B
#define USBDEVICE_SUPER_MAGIC 0x9fa2
diff --git a/include/linux/union_fs.h b/include/linux/union_fs.h
new file mode 100644
index 0000000..b724031
--- /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 */
+
--
1.4.4.2
-
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