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xfs_inode_item.h
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xfs_inode_item.h
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/*
* Copyright (c) 2000,2005 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms 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. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#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 When an inode log item gets superseded,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;
#define XFS_ILOG_FDATA(w) xfs_ilog_fdata(w)
static inline int xfs_ilog_fdata(int w)
{
return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA);
}
#endif /* __KERNEL__ */
#define XFS_ILOG_FBROOT(w) xfs_ilog_fbroot(w)
static inline int xfs_ilog_fbroot(int w)
{
return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT);
}
#define XFS_ILOG_FEXT(w) xfs_ilog_fext(w)
static inline int xfs_ilog_fext(int w)
{
return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT);
}
#ifdef __KERNEL__
extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
extern void xfs_inode_item_destroy(struct xfs_inode *);
extern void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *);
extern void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *);
extern void xfs_iflush_abort(struct xfs_inode *);
#endif /* __KERNEL__ */
#endif /* __XFS_INODE_ITEM_H__ */