175 lines
6.1 KiB
C
175 lines
6.1 KiB
C
/*
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* Copyright (c) 2000,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms 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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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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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typedef struct xfs_inode_log_format {
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__uint16_t ilf_type; /* inode log item type */
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__uint16_t ilf_size; /* size of this item */
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__uint32_t ilf_fields; /* flags for fields logged */
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__uint16_t ilf_asize; /* size of attr d/ext/root */
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__uint16_t ilf_dsize; /* size of data/ext/root */
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__uint64_t ilf_ino; /* inode number */
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union {
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__uint32_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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__int32_t ilf_len; /* len of inode buffer */
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__int32_t ilf_boffset; /* off of inode in buffer */
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} xfs_inode_log_format_t;
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typedef struct xfs_inode_log_format_32 {
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__uint16_t ilf_type; /* inode log item type */
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__uint16_t ilf_size; /* size of this item */
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__uint32_t ilf_fields; /* flags for fields logged */
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__uint16_t ilf_asize; /* size of attr d/ext/root */
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__uint16_t ilf_dsize; /* size of data/ext/root */
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__uint64_t ilf_ino; /* inode number */
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union {
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__uint32_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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__int32_t ilf_len; /* len of inode buffer */
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__int32_t ilf_boffset; /* off of inode in buffer */
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} __attribute__((packed)) xfs_inode_log_format_32_t;
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typedef struct xfs_inode_log_format_64 {
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__uint16_t ilf_type; /* inode log item type */
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__uint16_t ilf_size; /* size of this item */
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__uint32_t ilf_fields; /* flags for fields logged */
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__uint16_t ilf_asize; /* size of attr d/ext/root */
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__uint16_t ilf_dsize; /* size of data/ext/root */
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__uint32_t ilf_pad; /* pad for 64 bit boundary */
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__uint64_t ilf_ino; /* inode number */
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union {
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__uint32_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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__int32_t ilf_len; /* len of inode buffer */
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__int32_t ilf_boffset; /* off of inode in buffer */
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} xfs_inode_log_format_64_t;
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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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/*
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* The timestamps are dirty, but not necessarily anything else in the inode
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* core. Unlike the other fields above this one must never make it to disk
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* in the ilf_fields of the inode_log_format, but is purely store in-memory in
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* ili_fields in the inode_log_item.
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*/
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#define XFS_ILOG_TIMESTAMP 0x4000
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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 | XFS_ILOG_TIMESTAMP)
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static inline int xfs_ilog_fbroot(int w)
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{
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return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT);
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}
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static inline int xfs_ilog_fext(int w)
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{
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return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT);
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}
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static inline int xfs_ilog_fdata(int w)
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{
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return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA);
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}
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#ifdef __KERNEL__
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struct xfs_buf;
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struct xfs_bmbt_rec;
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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_lock_flags; /* lock 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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unsigned int ili_fields; /* fields to be logged */
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struct xfs_bmbt_rec *ili_extents_buf; /* array of logged
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data exts */
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struct xfs_bmbt_rec *ili_aextents_buf; /* array of logged
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attr exts */
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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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static inline int xfs_inode_clean(xfs_inode_t *ip)
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{
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return !ip->i_itemp || !(ip->i_itemp->ili_fields & XFS_ILOG_ALL);
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}
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extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
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extern void xfs_inode_item_destroy(struct xfs_inode *);
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extern void xfs_iflush_done(struct xfs_buf *, struct xfs_log_item *);
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extern void xfs_istale_done(struct xfs_buf *, struct xfs_log_item *);
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extern void xfs_iflush_abort(struct xfs_inode *, bool);
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extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
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xfs_inode_log_format_t *);
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#endif /* __KERNEL__ */
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#endif /* __XFS_INODE_ITEM_H__ */
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