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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott7b718762005-11-02 14:58:39 +11002 * Copyright (c) 2000,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Nathan Scott7b718762005-11-02 14:58:39 +11005 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * published by the Free Software Foundation.
8 *
Nathan Scott7b718762005-11-02 14:58:39 +11009 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 *
Nathan Scott7b718762005-11-02 14:58:39 +110014 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 */
18#ifndef __XFS_INODE_ITEM_H__
19#define __XFS_INODE_ITEM_H__
20
21/*
22 * This is the structure used to lay out an inode log item in the
23 * log. The size of the inline data/extents/b-tree root to be logged
24 * (if any) is indicated in the ilf_dsize field. Changes to this structure
25 * must be added on to the end.
26 *
27 * Convention for naming inode log item versions : The current version
28 * is always named XFS_LI_INODE. When an inode log item gets superseded,
29 * add the latest version of IRIX that will generate logs with that item
30 * to the version name.
31 *
32 * -Version 1 of this structure (XFS_LI_5_3_INODE) included up to the first
33 * union (ilf_u) field. This was released with IRIX 5.3-XFS.
34 * -Version 2 of this structure (XFS_LI_6_1_INODE) is currently the entire
35 * structure. This was released with IRIX 6.0.1-XFS and IRIX 6.1.
36 * -Version 3 of this structure (XFS_LI_INODE) is the same as version 2
37 * so a new structure definition wasn't necessary. However, we had
38 * to add a new type because the inode cluster size changed from 4K
39 * to 8K and the version number had to be rev'ved to keep older kernels
40 * from trying to recover logs with the 8K buffers in them. The logging
41 * code can handle recovery on different-sized clusters now so hopefully
42 * this'll be the last time we need to change the inode log item just
43 * for a change in the inode cluster size. This new version was
44 * released with IRIX 6.2.
45 */
46typedef struct xfs_inode_log_format {
47 unsigned short ilf_type; /* inode log item type */
48 unsigned short ilf_size; /* size of this item */
49 uint ilf_fields; /* flags for fields logged */
50 ushort ilf_asize; /* size of attr d/ext/root */
51 ushort ilf_dsize; /* size of data/ext/root */
52 xfs_ino_t ilf_ino; /* inode number */
53 union {
54 xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/
55 uuid_t ilfu_uuid; /* mount point value */
56 } ilf_u;
57 __int64_t ilf_blkno; /* blkno of inode buffer */
58 int ilf_len; /* len of inode buffer */
59 int ilf_boffset; /* off of inode in buffer */
60} xfs_inode_log_format_t;
61
62/* Initial version shipped with IRIX 5.3-XFS */
63typedef struct xfs_inode_log_format_v1 {
64 unsigned short ilf_type; /* inode log item type */
65 unsigned short ilf_size; /* size of this item */
66 uint ilf_fields; /* flags for fields logged */
67 uint ilf_dsize; /* size of data/ext/root */
68 xfs_ino_t ilf_ino; /* inode number */
69 union {
70 xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/
71 uuid_t ilfu_uuid; /* mount point value */
72 } ilf_u;
73} xfs_inode_log_format_t_v1;
74
75/*
76 * Flags for xfs_trans_log_inode flags field.
77 */
78#define XFS_ILOG_CORE 0x001 /* log standard inode fields */
79#define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */
80#define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */
81#define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */
82#define XFS_ILOG_DEV 0x010 /* log the dev field */
83#define XFS_ILOG_UUID 0x020 /* log the uuid field */
84#define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */
85#define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */
86#define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */
87
88#define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
89 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \
90 XFS_ILOG_UUID | XFS_ILOG_ADATA | \
91 XFS_ILOG_AEXT | XFS_ILOG_ABROOT)
92
93#define XFS_ILOG_DFORK (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
94 XFS_ILOG_DBROOT)
95
96#define XFS_ILOG_AFORK (XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
97 XFS_ILOG_ABROOT)
98
99#define XFS_ILOG_ALL (XFS_ILOG_CORE | XFS_ILOG_DDATA | \
100 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \
101 XFS_ILOG_DEV | XFS_ILOG_UUID | \
102 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
103 XFS_ILOG_ABROOT)
104
105#define XFS_ILI_HOLD 0x1
106#define XFS_ILI_IOLOCKED_EXCL 0x2
107#define XFS_ILI_IOLOCKED_SHARED 0x4
108
109#define XFS_ILI_IOLOCKED_ANY (XFS_ILI_IOLOCKED_EXCL | XFS_ILI_IOLOCKED_SHARED)
110
111
112#ifdef __KERNEL__
113
114struct xfs_buf;
115struct xfs_bmbt_rec_64;
116struct xfs_inode;
117struct xfs_mount;
118
119
120typedef struct xfs_inode_log_item {
121 xfs_log_item_t ili_item; /* common portion */
122 struct xfs_inode *ili_inode; /* inode ptr */
123 xfs_lsn_t ili_flush_lsn; /* lsn at last flush */
124 xfs_lsn_t ili_last_lsn; /* lsn at last transaction */
125 unsigned short ili_ilock_recur; /* lock recursion count */
126 unsigned short ili_iolock_recur; /* lock recursion count */
127 unsigned short ili_flags; /* misc flags */
128 unsigned short ili_logged; /* flushed logged data */
129 unsigned int ili_last_fields; /* fields when flushed */
130 struct xfs_bmbt_rec_64 *ili_extents_buf; /* array of logged
131 data exts */
132 struct xfs_bmbt_rec_64 *ili_aextents_buf; /* array of logged
133 attr exts */
134 unsigned int ili_pushbuf_flag; /* one bit used in push_ail */
135
136#ifdef DEBUG
137 uint64_t ili_push_owner; /* one who sets pushbuf_flag
138 above gets to push the buf */
139#endif
140#ifdef XFS_TRANS_DEBUG
141 int ili_root_size;
142 char *ili_orig_root;
143#endif
144 xfs_inode_log_format_t ili_format; /* logged structure */
145} xfs_inode_log_item_t;
146
147
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148#define XFS_ILOG_FDATA(w) xfs_ilog_fdata(w)
Nathan Scotta844f452005-11-02 14:38:42 +1100149static inline int xfs_ilog_fdata(int w)
150{
151 return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA);
152}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153
154#endif /* __KERNEL__ */
155
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156#define XFS_ILOG_FBROOT(w) xfs_ilog_fbroot(w)
Nathan Scotta844f452005-11-02 14:38:42 +1100157static inline int xfs_ilog_fbroot(int w)
158{
159 return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT);
160}
161
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162#define XFS_ILOG_FEXT(w) xfs_ilog_fext(w)
Nathan Scotta844f452005-11-02 14:38:42 +1100163static inline int xfs_ilog_fext(int w)
164{
165 return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT);
166}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167
168#ifdef __KERNEL__
169
Nathan Scotta844f452005-11-02 14:38:42 +1100170extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
171extern void xfs_inode_item_destroy(struct xfs_inode *);
172extern void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *);
173extern void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *);
174extern void xfs_iflush_abort(struct xfs_inode *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175
176#endif /* __KERNEL__ */
177
178#endif /* __XFS_INODE_ITEM_H__ */