linux-kernel - [PATCH 21 of 23] Unionfs: Include file

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Message-Id: <606b1edca92cfb812a4f.1160197660@thor.fsl.cs.sunysb.edu>
Date:	Sat, 07 Oct 2006 01:07:40 -0400
From:	Josef "Jeff" Sipek <jsipek@...sunysb.edu>
To:	linux-kernel@...r.kernel.org
Cc:	linux-fsdevel@...r.kernel.org, torvalds@...l.org, akpm@...l.org,
	hch@...radead.org, viro@....linux.org.uk
Subject: [PATCH 21 of 23] Unionfs: Include file

From: Josef "Jeff" Sipek <jsipek@...sunysb.edu>

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

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

---

1 file changed, 20 insertions(+)
include/linux/union_fs.h |   20 ++++++++++++++++++++

diff -r 4a0655b52aef -r 606b1edca92c include/linux/union_fs.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/linux/union_fs.h	Sat Oct 07 00:46:20 2006 -0400
@@ -0,0 +1,20 @@
+#ifndef _LINUX_UNION_FS_H
+#define _LINUX_UNION_FS_H
+
+#define UNIONFS_VERSION  "2.0"
+/*
+ * DEFINITIONS FOR USER AND KERNEL CODE:
+ * (Note: ioctl numbers 1--9 are reserved for fistgen, the rest
+ *  are auto-generated automatically based on the user's .fist file.)
+ */
+# 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 */
+


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