patch-2.4.25 linux-2.4.25/fs/xfs/xfs_inode_item.h

• Lines: 198
• Date: 2004-02-18 05:36:32.000000000 -0800
• Orig file: linux-2.4.24/fs/xfs/xfs_inode_item.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.24/fs/xfs/xfs_inode_item.h linux-2.4.25/fs/xfs/xfs_inode_item.h
@@ -0,0 +1,197 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef	__XFS_INODE_ITEM_H__
+#define	__XFS_INODE_ITEM_H__
+
+/*
+ * This is the structure used to lay out an inode log item in the
+ * log.  The size of the inline data/extents/b-tree root to be logged
+ * (if any) is indicated in the ilf_dsize field.  Changes to this structure
+ * must be added on to the end.
+ *
+ * Convention for naming inode log item versions :  The current version
+ * is always named XFS_LI_INODE.  When an inode log item gets superseded,
+ * add the latest version of IRIX that will generate logs with that item
+ * to the version name.
+ *
+ * -Version 1 of this structure (XFS_LI_5_3_INODE) included up to the first
+ *	union (ilf_u) field.  This was released with IRIX 5.3-XFS.
+ * -Version 2 of this structure (XFS_LI_6_1_INODE) is currently the entire
+ *	structure.  This was released with IRIX 6.0.1-XFS and IRIX 6.1.
+ * -Version 3 of this structure (XFS_LI_INODE) is the same as version 2
+ *	so a new structure definition wasn't necessary.  However, we had
+ *	to add a new type because the inode cluster size changed from 4K
+ *	to 8K and the version number had to be rev'ved to keep older kernels
+ *	from trying to recover logs with the 8K buffers in them.  The logging
+ *	code can handle recovery on different-sized clusters now so hopefully
+ *	this'll be the last time we need to change the inode log item just
+ *	for a change in the inode cluster size.  This new version was
+ *	released with IRIX 6.2.
+ */
+typedef struct xfs_inode_log_format {
+	unsigned short		ilf_type;	/* inode log item type */
+	unsigned short		ilf_size;	/* size of this item */
+	uint			ilf_fields;	/* flags for fields logged */
+	ushort			ilf_asize;	/* size of attr d/ext/root */
+	ushort			ilf_dsize;	/* size of data/ext/root */
+	xfs_ino_t		ilf_ino;	/* inode number */
+	union {
+		xfs_dev_t	ilfu_rdev;	/* rdev value for dev inode*/
+		uuid_t		ilfu_uuid;	/* mount point value */
+	} ilf_u;
+	__int64_t		ilf_blkno;	/* blkno of inode buffer */
+	int			ilf_len;	/* len of inode buffer */
+	int			ilf_boffset;	/* off of inode in buffer */
+} xfs_inode_log_format_t;
+
+/* Initial version shipped with IRIX 5.3-XFS */
+typedef struct xfs_inode_log_format_v1 {
+	unsigned short		ilf_type;	/* inode log item type */
+	unsigned short		ilf_size;	/* size of this item */
+	uint			ilf_fields;	/* flags for fields logged */
+	uint			ilf_dsize;	/* size of data/ext/root */
+	xfs_ino_t		ilf_ino;	/* inode number */
+	union {
+		xfs_dev_t	ilfu_rdev;	/* rdev value for dev inode*/
+		uuid_t		ilfu_uuid;	/* mount point value */
+	} ilf_u;
+} xfs_inode_log_format_t_v1;
+
+/*
+ * Flags for xfs_trans_log_inode flags field.
+ */
+#define	XFS_ILOG_CORE	0x001	/* log standard inode fields */
+#define	XFS_ILOG_DDATA	0x002	/* log i_df.if_data */
+#define	XFS_ILOG_DEXT	0x004	/* log i_df.if_extents */
+#define	XFS_ILOG_DBROOT	0x008	/* log i_df.i_broot */
+#define	XFS_ILOG_DEV	0x010	/* log the dev field */
+#define	XFS_ILOG_UUID	0x020	/* log the uuid field */
+#define	XFS_ILOG_ADATA	0x040	/* log i_af.if_data */
+#define	XFS_ILOG_AEXT	0x080	/* log i_af.if_extents */
+#define	XFS_ILOG_ABROOT	0x100	/* log i_af.i_broot */
+
+#define	XFS_ILOG_NONCORE	(XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
+				 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \
+				 XFS_ILOG_UUID | XFS_ILOG_ADATA | \
+				 XFS_ILOG_AEXT | XFS_ILOG_ABROOT)
+
+#define	XFS_ILOG_DFORK		(XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
+				 XFS_ILOG_DBROOT)
+
+#define	XFS_ILOG_AFORK		(XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
+				 XFS_ILOG_ABROOT)
+
+#define	XFS_ILOG_ALL		(XFS_ILOG_CORE | XFS_ILOG_DDATA | \
+				 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \
+				 XFS_ILOG_DEV | XFS_ILOG_UUID | \
+				 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
+				 XFS_ILOG_ABROOT)
+
+#define	XFS_ILI_HOLD		0x1
+#define	XFS_ILI_IOLOCKED_EXCL	0x2
+#define	XFS_ILI_IOLOCKED_SHARED	0x4
+
+#define	XFS_ILI_IOLOCKED_ANY   (XFS_ILI_IOLOCKED_EXCL | XFS_ILI_IOLOCKED_SHARED)
+
+
+#ifdef __KERNEL__
+
+struct xfs_buf;
+struct xfs_bmbt_rec_64;
+struct xfs_inode;
+struct xfs_mount;
+
+
+typedef struct xfs_inode_log_item {
+	xfs_log_item_t		ili_item;	   /* common portion */
+	struct xfs_inode	*ili_inode;	   /* inode ptr */
+	xfs_lsn_t		ili_flush_lsn;	   /* lsn at last flush */
+	xfs_lsn_t		ili_last_lsn;	   /* lsn at last transaction */
+	unsigned short		ili_ilock_recur;   /* lock recursion count */
+	unsigned short		ili_iolock_recur;  /* lock recursion count */
+	unsigned short		ili_flags;	   /* misc flags */
+	unsigned short		ili_logged;	   /* flushed logged data */
+	unsigned int		ili_last_fields;   /* fields when flushed */
+	struct xfs_bmbt_rec_64	*ili_extents_buf;  /* array of logged
+						      data exts */
+	struct xfs_bmbt_rec_64	*ili_aextents_buf; /* array of logged
+						      attr exts */
+	unsigned int            ili_pushbuf_flag;  /* one bit used in push_ail */
+
+#ifdef DEBUG
+	uint64_t                ili_push_owner;    /* one who sets pushbuf_flag
+						      above gets to push the buf */
+#endif
+#ifdef XFS_TRANS_DEBUG
+	int			ili_root_size;
+	char			*ili_orig_root;
+#endif
+	xfs_inode_log_format_t	ili_format;	   /* logged structure */
+} xfs_inode_log_item_t;
+
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FDATA)
+int xfs_ilog_fdata(int w);
+#define	XFS_ILOG_FDATA(w)	xfs_ilog_fdata(w)
+#else
+#define	XFS_ILOG_FDATA(w)	\
+	((w) == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA)
+#endif
+
+#endif	/* __KERNEL__ */
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FBROOT)
+int xfs_ilog_fbroot(int w);
+#define	XFS_ILOG_FBROOT(w)	xfs_ilog_fbroot(w)
+#else
+#define	XFS_ILOG_FBROOT(w)	\
+	((w) == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FEXT)
+int xfs_ilog_fext(int w);
+#define	XFS_ILOG_FEXT(w)	xfs_ilog_fext(w)
+#else
+#define	XFS_ILOG_FEXT(w)	\
+	((w) == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT)
+#endif
+
+#ifdef __KERNEL__
+
+void	xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
+void	xfs_inode_item_destroy(struct xfs_inode *);
+void	xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *);
+void	xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *);
+void	xfs_iflush_abort(struct xfs_inode *);
+
+#endif	/* __KERNEL__ */
+
+#endif	/* __XFS_INODE_ITEM_H__ */