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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/xfs/xfs_inode_item.h
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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+/*
+ * 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__ */