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