Loading...
1/*
2 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * 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.
13 *
14 * 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
17 */
18#ifndef __XFS_TRANS_H__
19#define __XFS_TRANS_H__
20
21/* kernel only transaction subsystem defines */
22
23struct xfs_buf;
24struct xfs_buftarg;
25struct xfs_efd_log_item;
26struct xfs_efi_log_item;
27struct xfs_inode;
28struct xfs_item_ops;
29struct xfs_log_iovec;
30struct xfs_log_item_desc;
31struct xfs_mount;
32struct xfs_trans;
33struct xfs_trans_res;
34struct xfs_dquot_acct;
35struct xfs_busy_extent;
36
37typedef struct xfs_log_item {
38 struct list_head li_ail; /* AIL pointers */
39 xfs_lsn_t li_lsn; /* last on-disk lsn */
40 struct xfs_log_item_desc *li_desc; /* ptr to current desc*/
41 struct xfs_mount *li_mountp; /* ptr to fs mount */
42 struct xfs_ail *li_ailp; /* ptr to AIL */
43 uint li_type; /* item type */
44 uint li_flags; /* misc flags */
45 struct xfs_log_item *li_bio_list; /* buffer item list */
46 void (*li_cb)(struct xfs_buf *,
47 struct xfs_log_item *);
48 /* buffer item iodone */
49 /* callback func */
50 const struct xfs_item_ops *li_ops; /* function list */
51
52 /* delayed logging */
53 struct list_head li_cil; /* CIL pointers */
54 struct xfs_log_vec *li_lv; /* active log vector */
55 xfs_lsn_t li_seq; /* CIL commit seq */
56} xfs_log_item_t;
57
58#define XFS_LI_IN_AIL 0x1
59#define XFS_LI_ABORTED 0x2
60
61#define XFS_LI_FLAGS \
62 { XFS_LI_IN_AIL, "IN_AIL" }, \
63 { XFS_LI_ABORTED, "ABORTED" }
64
65struct xfs_item_ops {
66 void (*iop_size)(xfs_log_item_t *, int *, int *);
67 void (*iop_format)(xfs_log_item_t *, struct xfs_log_vec *);
68 void (*iop_pin)(xfs_log_item_t *);
69 void (*iop_unpin)(xfs_log_item_t *, int remove);
70 uint (*iop_push)(struct xfs_log_item *, struct list_head *);
71 void (*iop_unlock)(xfs_log_item_t *);
72 xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
73 void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
74};
75
76void xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item,
77 int type, const struct xfs_item_ops *ops);
78
79/*
80 * Return values for the iop_push() routines.
81 */
82#define XFS_ITEM_SUCCESS 0
83#define XFS_ITEM_PINNED 1
84#define XFS_ITEM_LOCKED 2
85#define XFS_ITEM_FLUSHING 3
86
87
88/*
89 * This is the structure maintained for every active transaction.
90 */
91typedef struct xfs_trans {
92 unsigned int t_magic; /* magic number */
93 unsigned int t_type; /* transaction type */
94 unsigned int t_log_res; /* amt of log space resvd */
95 unsigned int t_log_count; /* count for perm log res */
96 unsigned int t_blk_res; /* # of blocks resvd */
97 unsigned int t_blk_res_used; /* # of resvd blocks used */
98 unsigned int t_rtx_res; /* # of rt extents resvd */
99 unsigned int t_rtx_res_used; /* # of resvd rt extents used */
100 struct xlog_ticket *t_ticket; /* log mgr ticket */
101 xfs_lsn_t t_lsn; /* log seq num of start of
102 * transaction. */
103 xfs_lsn_t t_commit_lsn; /* log seq num of end of
104 * transaction. */
105 struct xfs_mount *t_mountp; /* ptr to fs mount struct */
106 struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */
107 unsigned int t_flags; /* misc flags */
108 int64_t t_icount_delta; /* superblock icount change */
109 int64_t t_ifree_delta; /* superblock ifree change */
110 int64_t t_fdblocks_delta; /* superblock fdblocks chg */
111 int64_t t_res_fdblocks_delta; /* on-disk only chg */
112 int64_t t_frextents_delta;/* superblock freextents chg*/
113 int64_t t_res_frextents_delta; /* on-disk only chg */
114#if defined(DEBUG) || defined(XFS_WARN)
115 int64_t t_ag_freeblks_delta; /* debugging counter */
116 int64_t t_ag_flist_delta; /* debugging counter */
117 int64_t t_ag_btree_delta; /* debugging counter */
118#endif
119 int64_t t_dblocks_delta;/* superblock dblocks change */
120 int64_t t_agcount_delta;/* superblock agcount change */
121 int64_t t_imaxpct_delta;/* superblock imaxpct change */
122 int64_t t_rextsize_delta;/* superblock rextsize chg */
123 int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */
124 int64_t t_rblocks_delta;/* superblock rblocks change */
125 int64_t t_rextents_delta;/* superblocks rextents chg */
126 int64_t t_rextslog_delta;/* superblocks rextslog chg */
127 struct list_head t_items; /* log item descriptors */
128 struct list_head t_busy; /* list of busy extents */
129 unsigned long t_pflags; /* saved process flags state */
130} xfs_trans_t;
131
132/*
133 * XFS transaction mechanism exported interfaces that are
134 * actually macros.
135 */
136#define xfs_trans_get_log_res(tp) ((tp)->t_log_res)
137#define xfs_trans_get_log_count(tp) ((tp)->t_log_count)
138#define xfs_trans_get_block_res(tp) ((tp)->t_blk_res)
139#define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC)
140
141#if defined(DEBUG) || defined(XFS_WARN)
142#define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d)
143#define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d)
144#define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d)
145#else
146#define xfs_trans_agblocks_delta(tp, d)
147#define xfs_trans_agflist_delta(tp, d)
148#define xfs_trans_agbtree_delta(tp, d)
149#endif
150
151/*
152 * XFS transaction mechanism exported interfaces.
153 */
154xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint);
155xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, xfs_km_flags_t);
156xfs_trans_t *xfs_trans_dup(xfs_trans_t *);
157int xfs_trans_reserve(struct xfs_trans *, struct xfs_trans_res *,
158 uint, uint);
159void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
160
161struct xfs_buf *xfs_trans_get_buf_map(struct xfs_trans *tp,
162 struct xfs_buftarg *target,
163 struct xfs_buf_map *map, int nmaps,
164 uint flags);
165
166static inline struct xfs_buf *
167xfs_trans_get_buf(
168 struct xfs_trans *tp,
169 struct xfs_buftarg *target,
170 xfs_daddr_t blkno,
171 int numblks,
172 uint flags)
173{
174 DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
175 return xfs_trans_get_buf_map(tp, target, &map, 1, flags);
176}
177
178int xfs_trans_read_buf_map(struct xfs_mount *mp,
179 struct xfs_trans *tp,
180 struct xfs_buftarg *target,
181 struct xfs_buf_map *map, int nmaps,
182 xfs_buf_flags_t flags,
183 struct xfs_buf **bpp,
184 const struct xfs_buf_ops *ops);
185
186static inline int
187xfs_trans_read_buf(
188 struct xfs_mount *mp,
189 struct xfs_trans *tp,
190 struct xfs_buftarg *target,
191 xfs_daddr_t blkno,
192 int numblks,
193 xfs_buf_flags_t flags,
194 struct xfs_buf **bpp,
195 const struct xfs_buf_ops *ops)
196{
197 DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
198 return xfs_trans_read_buf_map(mp, tp, target, &map, 1,
199 flags, bpp, ops);
200}
201
202struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int);
203
204void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
205void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
206void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
207void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
208void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
209void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
210void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
211void xfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *);
212void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
213void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
214void xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
215void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
216void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
217void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
218struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint);
219void xfs_efi_release(struct xfs_efi_log_item *, uint);
220void xfs_trans_log_efi_extent(xfs_trans_t *,
221 struct xfs_efi_log_item *,
222 xfs_fsblock_t,
223 xfs_extlen_t);
224struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *,
225 struct xfs_efi_log_item *,
226 uint);
227void xfs_trans_log_efd_extent(xfs_trans_t *,
228 struct xfs_efd_log_item *,
229 xfs_fsblock_t,
230 xfs_extlen_t);
231int xfs_trans_commit(xfs_trans_t *, uint flags);
232int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
233void xfs_trans_cancel(xfs_trans_t *, int);
234int xfs_trans_ail_init(struct xfs_mount *);
235void xfs_trans_ail_destroy(struct xfs_mount *);
236
237void xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *,
238 enum xfs_blft);
239void xfs_trans_buf_copy_type(struct xfs_buf *dst_bp,
240 struct xfs_buf *src_bp);
241
242extern kmem_zone_t *xfs_trans_zone;
243extern kmem_zone_t *xfs_log_item_desc_zone;
244
245#endif /* __XFS_TRANS_H__ */
1/*
2 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * 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.
13 *
14 * 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
17 */
18#ifndef __XFS_TRANS_H__
19#define __XFS_TRANS_H__
20
21struct xfs_log_item;
22
23/*
24 * This is the structure written in the log at the head of
25 * every transaction. It identifies the type and id of the
26 * transaction, and contains the number of items logged by
27 * the transaction so we know how many to expect during recovery.
28 *
29 * Do not change the below structure without redoing the code in
30 * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans().
31 */
32typedef struct xfs_trans_header {
33 uint th_magic; /* magic number */
34 uint th_type; /* transaction type */
35 __int32_t th_tid; /* transaction id (unused) */
36 uint th_num_items; /* num items logged by trans */
37} xfs_trans_header_t;
38
39#define XFS_TRANS_HEADER_MAGIC 0x5452414e /* TRAN */
40
41/*
42 * Log item types.
43 */
44#define XFS_LI_EFI 0x1236
45#define XFS_LI_EFD 0x1237
46#define XFS_LI_IUNLINK 0x1238
47#define XFS_LI_INODE 0x123b /* aligned ino chunks, var-size ibufs */
48#define XFS_LI_BUF 0x123c /* v2 bufs, variable sized inode bufs */
49#define XFS_LI_DQUOT 0x123d
50#define XFS_LI_QUOTAOFF 0x123e
51
52#define XFS_LI_TYPE_DESC \
53 { XFS_LI_EFI, "XFS_LI_EFI" }, \
54 { XFS_LI_EFD, "XFS_LI_EFD" }, \
55 { XFS_LI_IUNLINK, "XFS_LI_IUNLINK" }, \
56 { XFS_LI_INODE, "XFS_LI_INODE" }, \
57 { XFS_LI_BUF, "XFS_LI_BUF" }, \
58 { XFS_LI_DQUOT, "XFS_LI_DQUOT" }, \
59 { XFS_LI_QUOTAOFF, "XFS_LI_QUOTAOFF" }
60
61/*
62 * Transaction types. Used to distinguish types of buffers.
63 */
64#define XFS_TRANS_SETATTR_NOT_SIZE 1
65#define XFS_TRANS_SETATTR_SIZE 2
66#define XFS_TRANS_INACTIVE 3
67#define XFS_TRANS_CREATE 4
68#define XFS_TRANS_CREATE_TRUNC 5
69#define XFS_TRANS_TRUNCATE_FILE 6
70#define XFS_TRANS_REMOVE 7
71#define XFS_TRANS_LINK 8
72#define XFS_TRANS_RENAME 9
73#define XFS_TRANS_MKDIR 10
74#define XFS_TRANS_RMDIR 11
75#define XFS_TRANS_SYMLINK 12
76#define XFS_TRANS_SET_DMATTRS 13
77#define XFS_TRANS_GROWFS 14
78#define XFS_TRANS_STRAT_WRITE 15
79#define XFS_TRANS_DIOSTRAT 16
80/* 17 was XFS_TRANS_WRITE_SYNC */
81#define XFS_TRANS_WRITEID 18
82#define XFS_TRANS_ADDAFORK 19
83#define XFS_TRANS_ATTRINVAL 20
84#define XFS_TRANS_ATRUNCATE 21
85#define XFS_TRANS_ATTR_SET 22
86#define XFS_TRANS_ATTR_RM 23
87#define XFS_TRANS_ATTR_FLAG 24
88#define XFS_TRANS_CLEAR_AGI_BUCKET 25
89#define XFS_TRANS_QM_SBCHANGE 26
90/*
91 * Dummy entries since we use the transaction type to index into the
92 * trans_type[] in xlog_recover_print_trans_head()
93 */
94#define XFS_TRANS_DUMMY1 27
95#define XFS_TRANS_DUMMY2 28
96#define XFS_TRANS_QM_QUOTAOFF 29
97#define XFS_TRANS_QM_DQALLOC 30
98#define XFS_TRANS_QM_SETQLIM 31
99#define XFS_TRANS_QM_DQCLUSTER 32
100#define XFS_TRANS_QM_QINOCREATE 33
101#define XFS_TRANS_QM_QUOTAOFF_END 34
102#define XFS_TRANS_SB_UNIT 35
103#define XFS_TRANS_FSYNC_TS 36
104#define XFS_TRANS_GROWFSRT_ALLOC 37
105#define XFS_TRANS_GROWFSRT_ZERO 38
106#define XFS_TRANS_GROWFSRT_FREE 39
107#define XFS_TRANS_SWAPEXT 40
108#define XFS_TRANS_SB_COUNT 41
109#define XFS_TRANS_CHECKPOINT 42
110#define XFS_TRANS_TYPE_MAX 42
111/* new transaction types need to be reflected in xfs_logprint(8) */
112
113#define XFS_TRANS_TYPES \
114 { XFS_TRANS_SETATTR_NOT_SIZE, "SETATTR_NOT_SIZE" }, \
115 { XFS_TRANS_SETATTR_SIZE, "SETATTR_SIZE" }, \
116 { XFS_TRANS_INACTIVE, "INACTIVE" }, \
117 { XFS_TRANS_CREATE, "CREATE" }, \
118 { XFS_TRANS_CREATE_TRUNC, "CREATE_TRUNC" }, \
119 { XFS_TRANS_TRUNCATE_FILE, "TRUNCATE_FILE" }, \
120 { XFS_TRANS_REMOVE, "REMOVE" }, \
121 { XFS_TRANS_LINK, "LINK" }, \
122 { XFS_TRANS_RENAME, "RENAME" }, \
123 { XFS_TRANS_MKDIR, "MKDIR" }, \
124 { XFS_TRANS_RMDIR, "RMDIR" }, \
125 { XFS_TRANS_SYMLINK, "SYMLINK" }, \
126 { XFS_TRANS_SET_DMATTRS, "SET_DMATTRS" }, \
127 { XFS_TRANS_GROWFS, "GROWFS" }, \
128 { XFS_TRANS_STRAT_WRITE, "STRAT_WRITE" }, \
129 { XFS_TRANS_DIOSTRAT, "DIOSTRAT" }, \
130 { XFS_TRANS_WRITEID, "WRITEID" }, \
131 { XFS_TRANS_ADDAFORK, "ADDAFORK" }, \
132 { XFS_TRANS_ATTRINVAL, "ATTRINVAL" }, \
133 { XFS_TRANS_ATRUNCATE, "ATRUNCATE" }, \
134 { XFS_TRANS_ATTR_SET, "ATTR_SET" }, \
135 { XFS_TRANS_ATTR_RM, "ATTR_RM" }, \
136 { XFS_TRANS_ATTR_FLAG, "ATTR_FLAG" }, \
137 { XFS_TRANS_CLEAR_AGI_BUCKET, "CLEAR_AGI_BUCKET" }, \
138 { XFS_TRANS_QM_SBCHANGE, "QM_SBCHANGE" }, \
139 { XFS_TRANS_QM_QUOTAOFF, "QM_QUOTAOFF" }, \
140 { XFS_TRANS_QM_DQALLOC, "QM_DQALLOC" }, \
141 { XFS_TRANS_QM_SETQLIM, "QM_SETQLIM" }, \
142 { XFS_TRANS_QM_DQCLUSTER, "QM_DQCLUSTER" }, \
143 { XFS_TRANS_QM_QINOCREATE, "QM_QINOCREATE" }, \
144 { XFS_TRANS_QM_QUOTAOFF_END, "QM_QOFF_END" }, \
145 { XFS_TRANS_SB_UNIT, "SB_UNIT" }, \
146 { XFS_TRANS_FSYNC_TS, "FSYNC_TS" }, \
147 { XFS_TRANS_GROWFSRT_ALLOC, "GROWFSRT_ALLOC" }, \
148 { XFS_TRANS_GROWFSRT_ZERO, "GROWFSRT_ZERO" }, \
149 { XFS_TRANS_GROWFSRT_FREE, "GROWFSRT_FREE" }, \
150 { XFS_TRANS_SWAPEXT, "SWAPEXT" }, \
151 { XFS_TRANS_SB_COUNT, "SB_COUNT" }, \
152 { XFS_TRANS_CHECKPOINT, "CHECKPOINT" }, \
153 { XFS_TRANS_DUMMY1, "DUMMY1" }, \
154 { XFS_TRANS_DUMMY2, "DUMMY2" }, \
155 { XLOG_UNMOUNT_REC_TYPE, "UNMOUNT" }
156
157/*
158 * This structure is used to track log items associated with
159 * a transaction. It points to the log item and keeps some
160 * flags to track the state of the log item. It also tracks
161 * the amount of space needed to log the item it describes
162 * once we get to commit processing (see xfs_trans_commit()).
163 */
164struct xfs_log_item_desc {
165 struct xfs_log_item *lid_item;
166 struct list_head lid_trans;
167 unsigned char lid_flags;
168};
169
170#define XFS_LID_DIRTY 0x1
171
172#define XFS_TRANS_MAGIC 0x5452414E /* 'TRAN' */
173/*
174 * Values for t_flags.
175 */
176#define XFS_TRANS_DIRTY 0x01 /* something needs to be logged */
177#define XFS_TRANS_SB_DIRTY 0x02 /* superblock is modified */
178#define XFS_TRANS_PERM_LOG_RES 0x04 /* xact took a permanent log res */
179#define XFS_TRANS_SYNC 0x08 /* make commit synchronous */
180#define XFS_TRANS_DQ_DIRTY 0x10 /* at least one dquot in trx dirty */
181#define XFS_TRANS_RESERVE 0x20 /* OK to use reserved data blocks */
182
183/*
184 * Values for call flags parameter.
185 */
186#define XFS_TRANS_RELEASE_LOG_RES 0x4
187#define XFS_TRANS_ABORT 0x8
188
189/*
190 * Field values for xfs_trans_mod_sb.
191 */
192#define XFS_TRANS_SB_ICOUNT 0x00000001
193#define XFS_TRANS_SB_IFREE 0x00000002
194#define XFS_TRANS_SB_FDBLOCKS 0x00000004
195#define XFS_TRANS_SB_RES_FDBLOCKS 0x00000008
196#define XFS_TRANS_SB_FREXTENTS 0x00000010
197#define XFS_TRANS_SB_RES_FREXTENTS 0x00000020
198#define XFS_TRANS_SB_DBLOCKS 0x00000040
199#define XFS_TRANS_SB_AGCOUNT 0x00000080
200#define XFS_TRANS_SB_IMAXPCT 0x00000100
201#define XFS_TRANS_SB_REXTSIZE 0x00000200
202#define XFS_TRANS_SB_RBMBLOCKS 0x00000400
203#define XFS_TRANS_SB_RBLOCKS 0x00000800
204#define XFS_TRANS_SB_REXTENTS 0x00001000
205#define XFS_TRANS_SB_REXTSLOG 0x00002000
206
207
208/*
209 * Per-extent log reservation for the allocation btree changes
210 * involved in freeing or allocating an extent.
211 * 2 trees * (2 blocks/level * max depth - 1) * block size
212 */
213#define XFS_ALLOCFREE_LOG_RES(mp,nx) \
214 ((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1)))
215#define XFS_ALLOCFREE_LOG_COUNT(mp,nx) \
216 ((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1)))
217
218/*
219 * Per-directory log reservation for any directory change.
220 * dir blocks: (1 btree block per level + data block + free block) * dblock size
221 * bmap btree: (levels + 2) * max depth * block size
222 * v2 directory blocks can be fragmented below the dirblksize down to the fsb
223 * size, so account for that in the DAENTER macros.
224 */
225#define XFS_DIROP_LOG_RES(mp) \
226 (XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \
227 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)))
228#define XFS_DIROP_LOG_COUNT(mp) \
229 (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \
230 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)
231
232
233#define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write)
234#define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate)
235#define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename)
236#define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link)
237#define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove)
238#define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink)
239#define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create)
240#define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir)
241#define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree)
242#define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange)
243#define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata)
244#define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc)
245#define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero)
246#define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree)
247#define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
248/*
249 * Logging the inode timestamps on an fsync -- same as SWRITE
250 * as long as SWRITE logs the entire inode core
251 */
252#define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
253#define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
254#define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork)
255#define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval)
256#define XFS_ATTRSET_LOG_RES(mp, ext) \
257 ((mp)->m_reservations.tr_attrset + \
258 (ext * (mp)->m_sb.sb_sectsize) + \
259 (ext * XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))) + \
260 (128 * (ext + (ext * XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))))
261#define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm)
262#define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi)
263
264
265/*
266 * Various log count values.
267 */
268#define XFS_DEFAULT_LOG_COUNT 1
269#define XFS_DEFAULT_PERM_LOG_COUNT 2
270#define XFS_ITRUNCATE_LOG_COUNT 2
271#define XFS_INACTIVE_LOG_COUNT 2
272#define XFS_CREATE_LOG_COUNT 2
273#define XFS_MKDIR_LOG_COUNT 3
274#define XFS_SYMLINK_LOG_COUNT 3
275#define XFS_REMOVE_LOG_COUNT 2
276#define XFS_LINK_LOG_COUNT 2
277#define XFS_RENAME_LOG_COUNT 2
278#define XFS_WRITE_LOG_COUNT 2
279#define XFS_ADDAFORK_LOG_COUNT 2
280#define XFS_ATTRINVAL_LOG_COUNT 1
281#define XFS_ATTRSET_LOG_COUNT 3
282#define XFS_ATTRRM_LOG_COUNT 3
283
284/*
285 * Here we centralize the specification of XFS meta-data buffer
286 * reference count values. This determine how hard the buffer
287 * cache tries to hold onto the buffer.
288 */
289#define XFS_AGF_REF 4
290#define XFS_AGI_REF 4
291#define XFS_AGFL_REF 3
292#define XFS_INO_BTREE_REF 3
293#define XFS_ALLOC_BTREE_REF 2
294#define XFS_BMAP_BTREE_REF 2
295#define XFS_DIR_BTREE_REF 2
296#define XFS_INO_REF 2
297#define XFS_ATTR_BTREE_REF 1
298#define XFS_DQUOT_REF 1
299
300#ifdef __KERNEL__
301
302struct xfs_buf;
303struct xfs_buftarg;
304struct xfs_efd_log_item;
305struct xfs_efi_log_item;
306struct xfs_inode;
307struct xfs_item_ops;
308struct xfs_log_iovec;
309struct xfs_log_item_desc;
310struct xfs_mount;
311struct xfs_trans;
312struct xfs_dquot_acct;
313struct xfs_busy_extent;
314
315typedef struct xfs_log_item {
316 struct list_head li_ail; /* AIL pointers */
317 xfs_lsn_t li_lsn; /* last on-disk lsn */
318 struct xfs_log_item_desc *li_desc; /* ptr to current desc*/
319 struct xfs_mount *li_mountp; /* ptr to fs mount */
320 struct xfs_ail *li_ailp; /* ptr to AIL */
321 uint li_type; /* item type */
322 uint li_flags; /* misc flags */
323 struct xfs_log_item *li_bio_list; /* buffer item list */
324 void (*li_cb)(struct xfs_buf *,
325 struct xfs_log_item *);
326 /* buffer item iodone */
327 /* callback func */
328 const struct xfs_item_ops *li_ops; /* function list */
329
330 /* delayed logging */
331 struct list_head li_cil; /* CIL pointers */
332 struct xfs_log_vec *li_lv; /* active log vector */
333 xfs_lsn_t li_seq; /* CIL commit seq */
334} xfs_log_item_t;
335
336#define XFS_LI_IN_AIL 0x1
337#define XFS_LI_ABORTED 0x2
338
339#define XFS_LI_FLAGS \
340 { XFS_LI_IN_AIL, "IN_AIL" }, \
341 { XFS_LI_ABORTED, "ABORTED" }
342
343struct xfs_item_ops {
344 uint (*iop_size)(xfs_log_item_t *);
345 void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *);
346 void (*iop_pin)(xfs_log_item_t *);
347 void (*iop_unpin)(xfs_log_item_t *, int remove);
348 uint (*iop_push)(struct xfs_log_item *, struct list_head *);
349 void (*iop_unlock)(xfs_log_item_t *);
350 xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
351 void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
352};
353
354#define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip)
355#define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp)
356#define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip)
357#define IOP_UNPIN(ip, remove) (*(ip)->li_ops->iop_unpin)(ip, remove)
358#define IOP_PUSH(ip, list) (*(ip)->li_ops->iop_push)(ip, list)
359#define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip)
360#define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn)
361#define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn)
362
363/*
364 * Return values for the IOP_PUSH() routines.
365 */
366#define XFS_ITEM_SUCCESS 0
367#define XFS_ITEM_PINNED 1
368#define XFS_ITEM_LOCKED 2
369#define XFS_ITEM_FLUSHING 3
370
371/*
372 * This is the type of function which can be given to xfs_trans_callback()
373 * to be called upon the transaction's commit to disk.
374 */
375typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *);
376
377/*
378 * This is the structure maintained for every active transaction.
379 */
380typedef struct xfs_trans {
381 unsigned int t_magic; /* magic number */
382 xfs_log_callback_t t_logcb; /* log callback struct */
383 unsigned int t_type; /* transaction type */
384 unsigned int t_log_res; /* amt of log space resvd */
385 unsigned int t_log_count; /* count for perm log res */
386 unsigned int t_blk_res; /* # of blocks resvd */
387 unsigned int t_blk_res_used; /* # of resvd blocks used */
388 unsigned int t_rtx_res; /* # of rt extents resvd */
389 unsigned int t_rtx_res_used; /* # of resvd rt extents used */
390 struct xlog_ticket *t_ticket; /* log mgr ticket */
391 xfs_lsn_t t_lsn; /* log seq num of start of
392 * transaction. */
393 xfs_lsn_t t_commit_lsn; /* log seq num of end of
394 * transaction. */
395 struct xfs_mount *t_mountp; /* ptr to fs mount struct */
396 struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */
397 unsigned int t_flags; /* misc flags */
398 int64_t t_icount_delta; /* superblock icount change */
399 int64_t t_ifree_delta; /* superblock ifree change */
400 int64_t t_fdblocks_delta; /* superblock fdblocks chg */
401 int64_t t_res_fdblocks_delta; /* on-disk only chg */
402 int64_t t_frextents_delta;/* superblock freextents chg*/
403 int64_t t_res_frextents_delta; /* on-disk only chg */
404#ifdef DEBUG
405 int64_t t_ag_freeblks_delta; /* debugging counter */
406 int64_t t_ag_flist_delta; /* debugging counter */
407 int64_t t_ag_btree_delta; /* debugging counter */
408#endif
409 int64_t t_dblocks_delta;/* superblock dblocks change */
410 int64_t t_agcount_delta;/* superblock agcount change */
411 int64_t t_imaxpct_delta;/* superblock imaxpct change */
412 int64_t t_rextsize_delta;/* superblock rextsize chg */
413 int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */
414 int64_t t_rblocks_delta;/* superblock rblocks change */
415 int64_t t_rextents_delta;/* superblocks rextents chg */
416 int64_t t_rextslog_delta;/* superblocks rextslog chg */
417 struct list_head t_items; /* log item descriptors */
418 xfs_trans_header_t t_header; /* header for in-log trans */
419 struct list_head t_busy; /* list of busy extents */
420 unsigned long t_pflags; /* saved process flags state */
421} xfs_trans_t;
422
423/*
424 * XFS transaction mechanism exported interfaces that are
425 * actually macros.
426 */
427#define xfs_trans_get_log_res(tp) ((tp)->t_log_res)
428#define xfs_trans_get_log_count(tp) ((tp)->t_log_count)
429#define xfs_trans_get_block_res(tp) ((tp)->t_blk_res)
430#define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC)
431
432#ifdef DEBUG
433#define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d)
434#define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d)
435#define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d)
436#else
437#define xfs_trans_agblocks_delta(tp, d)
438#define xfs_trans_agflist_delta(tp, d)
439#define xfs_trans_agbtree_delta(tp, d)
440#endif
441
442/*
443 * XFS transaction mechanism exported interfaces.
444 */
445xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint);
446xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, xfs_km_flags_t);
447xfs_trans_t *xfs_trans_dup(xfs_trans_t *);
448int xfs_trans_reserve(xfs_trans_t *, uint, uint, uint,
449 uint, uint);
450void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
451struct xfs_buf *xfs_trans_get_buf(xfs_trans_t *, struct xfs_buftarg *, xfs_daddr_t,
452 int, uint);
453int xfs_trans_read_buf(struct xfs_mount *, xfs_trans_t *,
454 struct xfs_buftarg *, xfs_daddr_t, int, uint,
455 struct xfs_buf **);
456struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int);
457
458void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
459void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
460void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
461void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
462void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
463void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
464void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
465void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
466void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
467void xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
468void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
469void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
470void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
471struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint);
472void xfs_efi_release(struct xfs_efi_log_item *, uint);
473void xfs_trans_log_efi_extent(xfs_trans_t *,
474 struct xfs_efi_log_item *,
475 xfs_fsblock_t,
476 xfs_extlen_t);
477struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *,
478 struct xfs_efi_log_item *,
479 uint);
480void xfs_trans_log_efd_extent(xfs_trans_t *,
481 struct xfs_efd_log_item *,
482 xfs_fsblock_t,
483 xfs_extlen_t);
484int xfs_trans_commit(xfs_trans_t *, uint flags);
485void xfs_trans_cancel(xfs_trans_t *, int);
486int xfs_trans_ail_init(struct xfs_mount *);
487void xfs_trans_ail_destroy(struct xfs_mount *);
488
489extern kmem_zone_t *xfs_trans_zone;
490extern kmem_zone_t *xfs_log_item_desc_zone;
491
492#endif /* __KERNEL__ */
493
494void xfs_trans_init(struct xfs_mount *);
495int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
496
497#endif /* __XFS_TRANS_H__ */