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Message-Id: <1211340189-11813-39-git-send-email-hooanon05@yahoo.co.jp>
Date: Wed, 21 May 2008 12:23:08 +0900
From: hooanon05@...oo.co.jp
To: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Junjiro Okajima <hooanon05@...oo.co.jp>
Subject: [AUFS PATCH v2.6.26-rc2-mm1 38/39] aufs global header file
From: Junjiro Okajima <hooanon05@...oo.co.jp>
initial commit
aufs global header file
Signed-off-by: Junjiro Okajima <hooanon05@...oo.co.jp>
---
include/linux/aufs_type.h | 111 +++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 111 insertions(+), 0 deletions(-)
create mode 100644 include/linux/aufs_type.h
diff --git a/include/linux/aufs_type.h b/include/linux/aufs_type.h
new file mode 100644
index 0000000..f69fb16
--- /dev/null
+++ b/include/linux/aufs_type.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2005, 2006, 2007, 2008 Junjiro Okajima
+ *
+ * This program, aufs 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/ioctl.h>
+
+#ifndef __AUFS_TYPE_H__
+#define __AUFS_TYPE_H__
+
+#define AUFS_VERSION "20080521-mm"
+
+/* move this to linux-2.6.19/include/magic.h */
+#define AUFS_SUPER_MAGIC ('a' << 24 | 'u' << 16 | 'f' << 8 | 's')
+
+/* ---------------------------------------------------------------------- */
+
+#ifdef CONFIG_AUFS_BRANCH_MAX_127
+/* some environments treat 'char' as 'unsigned char' by default */
+typedef signed char aufs_bindex_t;
+#define AUFS_BRANCH_MAX 127
+#else
+typedef short aufs_bindex_t;
+#ifdef CONFIG_AUFS_BRANCH_MAX_511
+#define AUFS_BRANCH_MAX 511
+#elif defined(CONFIG_AUFS_BRANCH_MAX_1023)
+#define AUFS_BRANCH_MAX 1023
+#elif defined(CONFIG_AUFS_BRANCH_MAX_32767)
+#define AUFS_BRANCH_MAX 32767
+#else
+#error unknown CONFIG_AUFS_BRANCH_MAX value
+#endif
+#endif
+
+#define AUFS_NAME "aufs"
+#define AUFS_FSTYPE AUFS_NAME
+
+#define AUFS_ROOT_INO 2
+#define AUFS_FIRST_INO 11
+
+#define AUFS_WH_PFX ".wh."
+#define AUFS_WH_PFX_LEN ((int)sizeof(AUFS_WH_PFX) - 1)
+#define AUFS_XINO_FNAME "." AUFS_NAME ".xino"
+#define AUFS_XINO_DEFPATH "/tmp/" AUFS_XINO_FNAME
+#define AUFS_XINO_TRUNC_INIT 64 /* blocks */
+#define AUFS_XINO_TRUNC_STEP 4 /* blocks */
+#define AUFS_DIRWH_DEF 3
+#define AUFS_RDCACHE_DEF 10 /* seconds */
+#define AUFS_WKQ_NAME AUFS_NAME "d"
+#define AUFS_NWKQ_DEF 4
+#define AUFS_MFS_SECOND_DEF 30 /* seconds */
+#define AUFS_PLINK_WARN 100 /* number of plinks */
+
+#ifdef CONFIG_AUFS_COMPAT
+#define AUFS_DIROPQ_NAME "__dir_opaque"
+#else
+#define AUFS_DIROPQ_NAME AUFS_WH_PFX ".opq" /* whiteouted doubly */
+#endif
+#define AUFS_WH_DIROPQ AUFS_WH_PFX AUFS_DIROPQ_NAME
+
+/* will be whiteouted doubly */
+#define AUFS_WH_BASENAME AUFS_WH_PFX AUFS_NAME
+#define AUFS_WH_PLINKDIR AUFS_WH_PFX "plink"
+
+/* ---------------------------------------------------------------------- */
+
+/* ioctl */
+#if 0 /* reserved for future use */
+enum {
+ AuCtlErr,
+ AuCtlErr_Last
+};
+enum {
+ AuCtl_REFRESH, //AuCtl_REFRESHV,
+ //AuCtl_FLUSH_PLINK,
+ //AuCtl_CPUP,
+ AuCtl_CPDOWN, AuCtl_MVDOWN,
+ //AuCtl_DIROPQ
+};
+
+struct aufs_ctl_cp {
+ int bsrc, bdst;
+ int err;
+};
+
+#define AuCtlType 'A'
+#define AUFS_CTL_REFRESH _IO(AuCtlType, AuCtl_REFRESH)
+#define AUFS_CTL_REFRESHV _IO(AuCtlType, AuCtl_REFRESHV)
+#define AUFS_CTL_FLUSH_PLINK _IOR(AuCtlType, AuCtl_FLUSH_PLINK)
+#define AUFS_CTL_CPUP _IOWR(AuCtlType, AuCtl_CPUP, struct aufs_ctl_cp)
+#define AUFS_CTL_CPDOWN \
+ _IOWR(AuCtlType, AuCtl_CPDOWN, struct aufs_ctl_cp)
+#define AUFS_CTL_MVDOWN \
+ _IOWR(AuCtlType, AuCtl_MVDOWN, struct aufs_ctl_cp)
+#define AUFS_CTL_DIROPQ _IO(AuCtlType, AuCtl_DIROPQ)
+#endif
+
+#endif /* __AUFS_TYPE_H__ */
--
1.5.5.1.308.g1fbb5.dirty
--
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