patch-2.4.5 linux/fs/freevxfs/vxfs_inode.h

• Lines: 183
• Date: Mon May 21 12:31:06 2001
• Orig file: v2.4.4/linux/fs/freevxfs/vxfs_inode.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.4/linux/fs/freevxfs/vxfs_inode.h linux/fs/freevxfs/vxfs_inode.h
@@ -0,0 +1,182 @@
+/*
+ * Copyright (c) 2000-2001 Christoph Hellwig.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL").
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#ifndef _VXFS_INODE_H_
+#define _VXFS_INODE_H_
+
+#ident "$Id: vxfs_inode.h,v 1.14 2001/04/25 18:11:23 hch Exp hch $"
+
+/*
+ * Veritas filesystem driver - inode structure.
+ *
+ * This file contains the definition of the disk and core
+ * inodes of the Veritas Filesystem.
+ */
+
+
+#define VXFS_ISIZE		0x100		/* Inode size */
+
+#define VXFS_NDADDR		10		/* Number of direct addrs in inode */
+#define VXFS_NIADDR		2		/* Number of indirect addrs in inode */
+#define VXFS_NIMMED		96		/* Size of immediate data in inode */
+#define VXFS_NTYPED		6		/* Num of typed extents */
+
+#define VXFS_TYPED_OFFSETMASK	(0x00FFFFFFFFFFFFFFULL)
+#define VXFS_TYPED_TYPEMASK	(0xFF00000000000000ULL)
+#define VXFS_TYPED_TYPESHIFT	56
+
+#define VXFS_TYPED_PER_BLOCK(sbp) \
+	((sbp)->s_blocksize / sizeof(struct vxfs_typed))
+
+/*
+ * Possible extent descriptor types for %VXFS_ORG_TYPED extents.
+ */
+enum {
+	VXFS_TYPED_INDIRECT		= 1,
+	VXFS_TYPED_DATA			= 2,
+	VXFS_TYPED_INDIRECT_DEV4	= 3,
+	VXFS_TYPED_DATA_DEV4		= 4,
+};
+
+/*
+ * Data stored immediately in the inode.
+ */
+struct vxfs_immed {
+	u_int8_t	vi_immed[VXFS_NIMMED];
+};
+
+struct vxfs_ext4 {
+	u_int32_t		ve4_spare;		/* ?? */
+	u_int32_t		ve4_indsize;		/* Indirect extent size */
+	vx_daddr_t		ve4_indir[VXFS_NIADDR];	/* Indirect extents */
+	struct direct {					/* Direct extents */
+		vx_daddr_t	extent;			/* Extent number */
+		u_int32_t	size;			/* Size of extent */
+	} ve4_direct[VXFS_NDADDR];
+};
+
+struct vxfs_typed {
+	u_int64_t	vt_hdr;		/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
+	vx_daddr_t	vt_block;	/* Extent block */
+	int32_t		vt_size;	/* Size in blocks */
+};
+
+struct vxfs_typed_dev4 {
+	u_int64_t	vd4_hdr;	/* Header, 0xTTOOOOOOOOOOOOOO; T=type,O=offs */
+	u_int64_t	vd4_block;	/* Extent block */
+	u_int64_t	vd4_size;	/* Size in blocks */
+	int32_t		vd4_dev;	/* Device ID */
+	u_int32_t	__pad1;
+};
+
+/*
+ * The inode as contained on the physical device.
+ */
+struct vxfs_dinode {
+	int32_t		vdi_mode;
+	u_int32_t	vdi_nlink;	/* Link count */
+	u_int32_t	vdi_uid;	/* UID */
+	u_int32_t	vdi_gid;	/* GID */
+	u_int64_t	vdi_size;	/* Inode size in bytes */
+	u_int32_t	vdi_atime;	/* Last time accessed - sec */
+	u_int32_t	vdi_autime;	/* Last time accessed - usec */
+	u_int32_t	vdi_mtime;	/* Last modify time - sec */
+	u_int32_t	vdi_mutime;	/* Last modify time - usec */
+	u_int32_t	vdi_ctime;	/* Create time - sec */
+	u_int32_t	vdi_cutime;	/* Create time - usec */
+	u_int8_t	vdi_aflags;	/* Allocation flags */
+	u_int8_t	vdi_orgtype;	/* Organisation type */
+	u_int16_t	vdi_eopflags;
+	u_int32_t	vdi_eopdata;
+	union {
+		u_int32_t		rdev;
+		u_int32_t		dotdot;
+		struct {
+			u_int32_t	reserved;
+			u_int32_t	fixextsize;
+		} i_regular;
+		struct {
+			u_int32_t	matchino;
+			u_int32_t	fsetindex;
+		} i_vxspec;
+		u_int64_t		align;
+	} vdi_ftarea;
+	u_int32_t	vdi_blocks;	/* How much blocks does inode occupy */
+	u_int32_t	vdi_gen;	/* Inode generation */
+	u_int64_t	vdi_version;	/* Version */
+	union {
+		struct vxfs_immed	immed;
+		struct vxfs_ext4	ext4;
+		struct vxfs_typed	typed[VXFS_NTYPED];
+	} vdi_org;
+	u_int32_t	vdi_iattrino;
+};
+
+#define vdi_rdev	vdi_ftarea.rdev
+#define vdi_dotdot	vdi_ftarea.dotdot
+#define vdi_fixextsize	vdi_ftarea.regular.fixextsize
+#define vdi_matchino	vdi_ftarea.vxspec.matchino
+#define vdi_fsetindex	vdi_ftarea.vxspec.fsetindex
+
+#define vdi_immed	vdi_org.immed
+#define vdi_ext4	vdi_org.ext4
+#define vdi_typed	vdi_org.typed
+
+
+/*
+ * The inode as represented in the main memory.
+ *
+ * TBD: This should become a separate structure...
+ */
+#define vxfs_inode_info	vxfs_dinode
+
+#define vii_mode	vdi_mode
+#define vii_uid		vdi_uid
+#define vii_gid		vdi_gid
+#define vii_nlink	vdi_nlink
+#define vii_size	vdi_size
+#define vii_atime	vdi_atime
+#define vii_ctime	vdi_ctime
+#define vii_mtime	vdi_mtime
+#define vii_blocks	vdi_blocks
+#define vii_org		vdi_org
+#define vii_orgtype	vdi_orgtype
+#define vii_gen		vdi_gen
+
+#define vii_rdev	vdi_ftarea.rdev
+#define vii_dotdot	vdi_ftarea.dotdot
+#define vii_fixextsize	vdi_ftarea.regular.fixextsize
+#define vii_matchino	vdi_ftarea.vxspec.matchino
+#define vii_fsetindex	vdi_ftarea.vxspec.fsetindex
+
+#define vii_immed	vdi_org.immed
+#define vii_ext4	vdi_org.ext4
+#define vii_typed	vdi_org.typed
+
+#endif /* _VXFS_INODE_H_ */