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xfs: Code cleanup and removal of some typedef usage
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1da177e4 1/*
7b718769
NS		 2 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
1da177e4 4 *
7b718769
NS		 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
1da177e4
LT		 7 * published by the Free Software Foundation.
8 *
7b718769
NS		 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.
1da177e4 13 *
7b718769
NS		 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
1da177e4
LT		 17 */
18#ifndef __XFS_TRANS_H__
19#define __XFS_TRANS_H__
20
847fff5c
BN		 21struct xfs_log_item;
22
1da177e4
LT		 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 */
1da177e4
LT		 44#define XFS_LI_EFI 0x1236
45#define XFS_LI_EFD 0x1237
46#define XFS_LI_IUNLINK 0x1238
1da177e4
LT		 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
3ebe7d2d 51#define XFS_LI_ICREATE 0x123f
1da177e4 52
9abbc539
DC		 53#define XFS_LI_TYPE_DESC \
54 { XFS_LI_EFI, "XFS_LI_EFI" }, \
55 { XFS_LI_EFD, "XFS_LI_EFD" }, \
56 { XFS_LI_IUNLINK, "XFS_LI_IUNLINK" }, \
57 { XFS_LI_INODE, "XFS_LI_INODE" }, \
58 { XFS_LI_BUF, "XFS_LI_BUF" }, \
59 { XFS_LI_DQUOT, "XFS_LI_DQUOT" }, \
60 { XFS_LI_QUOTAOFF, "XFS_LI_QUOTAOFF" }
61
1da177e4
LT		 62/*
63 * Transaction types. Used to distinguish types of buffers.
64 */
65#define XFS_TRANS_SETATTR_NOT_SIZE 1
66#define XFS_TRANS_SETATTR_SIZE 2
67#define XFS_TRANS_INACTIVE 3
68#define XFS_TRANS_CREATE 4
69#define XFS_TRANS_CREATE_TRUNC 5
70#define XFS_TRANS_TRUNCATE_FILE 6
71#define XFS_TRANS_REMOVE 7
72#define XFS_TRANS_LINK 8
73#define XFS_TRANS_RENAME 9
74#define XFS_TRANS_MKDIR 10
75#define XFS_TRANS_RMDIR 11
76#define XFS_TRANS_SYMLINK 12
77#define XFS_TRANS_SET_DMATTRS 13
78#define XFS_TRANS_GROWFS 14
79#define XFS_TRANS_STRAT_WRITE 15
80#define XFS_TRANS_DIOSTRAT 16
13e6d5cd 81/* 17 was XFS_TRANS_WRITE_SYNC */
1da177e4
LT		 82#define XFS_TRANS_WRITEID 18
83#define XFS_TRANS_ADDAFORK 19
84#define XFS_TRANS_ATTRINVAL 20
85#define XFS_TRANS_ATRUNCATE 21
86#define XFS_TRANS_ATTR_SET 22
87#define XFS_TRANS_ATTR_RM 23
88#define XFS_TRANS_ATTR_FLAG 24
89#define XFS_TRANS_CLEAR_AGI_BUCKET 25
90#define XFS_TRANS_QM_SBCHANGE 26
91/*
92 * Dummy entries since we use the transaction type to index into the
93 * trans_type[] in xlog_recover_print_trans_head()
94 */
95#define XFS_TRANS_DUMMY1 27
96#define XFS_TRANS_DUMMY2 28
97#define XFS_TRANS_QM_QUOTAOFF 29
98#define XFS_TRANS_QM_DQALLOC 30
99#define XFS_TRANS_QM_SETQLIM 31
100#define XFS_TRANS_QM_DQCLUSTER 32
101#define XFS_TRANS_QM_QINOCREATE 33
102#define XFS_TRANS_QM_QUOTAOFF_END 34
103#define XFS_TRANS_SB_UNIT 35
104#define XFS_TRANS_FSYNC_TS 36
105#define XFS_TRANS_GROWFSRT_ALLOC 37
106#define XFS_TRANS_GROWFSRT_ZERO 38
107#define XFS_TRANS_GROWFSRT_FREE 39
108#define XFS_TRANS_SWAPEXT 40
92821e2b 109#define XFS_TRANS_SB_COUNT 41
71e330b5 110#define XFS_TRANS_CHECKPOINT 42
3ebe7d2d
DC		 111#define XFS_TRANS_ICREATE 43
112#define XFS_TRANS_TYPE_MAX 43
1da177e4
LT		 113/* new transaction types need to be reflected in xfs_logprint(8) */
114
0b1b213f
CH		 115#define XFS_TRANS_TYPES \
116 { XFS_TRANS_SETATTR_NOT_SIZE, "SETATTR_NOT_SIZE" }, \
117 { XFS_TRANS_SETATTR_SIZE, "SETATTR_SIZE" }, \
118 { XFS_TRANS_INACTIVE, "INACTIVE" }, \
119 { XFS_TRANS_CREATE, "CREATE" }, \
120 { XFS_TRANS_CREATE_TRUNC, "CREATE_TRUNC" }, \
121 { XFS_TRANS_TRUNCATE_FILE, "TRUNCATE_FILE" }, \
122 { XFS_TRANS_REMOVE, "REMOVE" }, \
123 { XFS_TRANS_LINK, "LINK" }, \
124 { XFS_TRANS_RENAME, "RENAME" }, \
125 { XFS_TRANS_MKDIR, "MKDIR" }, \
126 { XFS_TRANS_RMDIR, "RMDIR" }, \
127 { XFS_TRANS_SYMLINK, "SYMLINK" }, \
128 { XFS_TRANS_SET_DMATTRS, "SET_DMATTRS" }, \
129 { XFS_TRANS_GROWFS, "GROWFS" }, \
130 { XFS_TRANS_STRAT_WRITE, "STRAT_WRITE" }, \
131 { XFS_TRANS_DIOSTRAT, "DIOSTRAT" }, \
132 { XFS_TRANS_WRITEID, "WRITEID" }, \
133 { XFS_TRANS_ADDAFORK, "ADDAFORK" }, \
134 { XFS_TRANS_ATTRINVAL, "ATTRINVAL" }, \
135 { XFS_TRANS_ATRUNCATE, "ATRUNCATE" }, \
136 { XFS_TRANS_ATTR_SET, "ATTR_SET" }, \
137 { XFS_TRANS_ATTR_RM, "ATTR_RM" }, \
138 { XFS_TRANS_ATTR_FLAG, "ATTR_FLAG" }, \
139 { XFS_TRANS_CLEAR_AGI_BUCKET, "CLEAR_AGI_BUCKET" }, \
140 { XFS_TRANS_QM_SBCHANGE, "QM_SBCHANGE" }, \
141 { XFS_TRANS_QM_QUOTAOFF, "QM_QUOTAOFF" }, \
142 { XFS_TRANS_QM_DQALLOC, "QM_DQALLOC" }, \
143 { XFS_TRANS_QM_SETQLIM, "QM_SETQLIM" }, \
144 { XFS_TRANS_QM_DQCLUSTER, "QM_DQCLUSTER" }, \
145 { XFS_TRANS_QM_QINOCREATE, "QM_QINOCREATE" }, \
146 { XFS_TRANS_QM_QUOTAOFF_END, "QM_QOFF_END" }, \
147 { XFS_TRANS_SB_UNIT, "SB_UNIT" }, \
148 { XFS_TRANS_FSYNC_TS, "FSYNC_TS" }, \
149 { XFS_TRANS_GROWFSRT_ALLOC, "GROWFSRT_ALLOC" }, \
150 { XFS_TRANS_GROWFSRT_ZERO, "GROWFSRT_ZERO" }, \
151 { XFS_TRANS_GROWFSRT_FREE, "GROWFSRT_FREE" }, \
152 { XFS_TRANS_SWAPEXT, "SWAPEXT" }, \
153 { XFS_TRANS_SB_COUNT, "SB_COUNT" }, \
71e330b5 154 { XFS_TRANS_CHECKPOINT, "CHECKPOINT" }, \
0b1b213f
CH		 155 { XFS_TRANS_DUMMY1, "DUMMY1" }, \
156 { XFS_TRANS_DUMMY2, "DUMMY2" }, \
157 { XLOG_UNMOUNT_REC_TYPE, "UNMOUNT" }
158
1da177e4
LT		 159/*
160 * This structure is used to track log items associated with
161 * a transaction. It points to the log item and keeps some
162 * flags to track the state of the log item. It also tracks
163 * the amount of space needed to log the item it describes
164 * once we get to commit processing (see xfs_trans_commit()).
165 */
e98c414f 166struct xfs_log_item_desc {
847fff5c 167 struct xfs_log_item *lid_item;
e98c414f 168 struct list_head lid_trans;
b3934213 169 unsigned char lid_flags;
e98c414f 170};
1da177e4
LT		 171
172#define XFS_LID_DIRTY 0x1
1da177e4 173
1da177e4
LT		 174#define XFS_TRANS_MAGIC 0x5452414E /* 'TRAN' */
175/*
176 * Values for t_flags.
177 */
178#define XFS_TRANS_DIRTY 0x01 /* something needs to be logged */
179#define XFS_TRANS_SB_DIRTY 0x02 /* superblock is modified */
180#define XFS_TRANS_PERM_LOG_RES 0x04 /* xact took a permanent log res */
181#define XFS_TRANS_SYNC 0x08 /* make commit synchronous */
182#define XFS_TRANS_DQ_DIRTY 0x10 /* at least one dquot in trx dirty */
183#define XFS_TRANS_RESERVE 0x20 /* OK to use reserved data blocks */
d9457dc0
JK		 184#define XFS_TRANS_FREEZE_PROT 0x40 /* Transaction has elevated writer
185 count in superblock */
1da177e4
LT		 186
187/*
188 * Values for call flags parameter.
189 */
1da177e4
LT		 190#define XFS_TRANS_RELEASE_LOG_RES 0x4
191#define XFS_TRANS_ABORT 0x8
192
193/*
194 * Field values for xfs_trans_mod_sb.
195 */
196#define XFS_TRANS_SB_ICOUNT 0x00000001
197#define XFS_TRANS_SB_IFREE 0x00000002
198#define XFS_TRANS_SB_FDBLOCKS 0x00000004
199#define XFS_TRANS_SB_RES_FDBLOCKS 0x00000008
200#define XFS_TRANS_SB_FREXTENTS 0x00000010
201#define XFS_TRANS_SB_RES_FREXTENTS 0x00000020
202#define XFS_TRANS_SB_DBLOCKS 0x00000040
203#define XFS_TRANS_SB_AGCOUNT 0x00000080
204#define XFS_TRANS_SB_IMAXPCT 0x00000100
205#define XFS_TRANS_SB_REXTSIZE 0x00000200
206#define XFS_TRANS_SB_RBMBLOCKS 0x00000400
207#define XFS_TRANS_SB_RBLOCKS 0x00000800
208#define XFS_TRANS_SB_REXTENTS 0x00001000
209#define XFS_TRANS_SB_REXTSLOG 0x00002000
210
211
1da177e4
LT		 212/*
213 * Per-extent log reservation for the allocation btree changes
214 * involved in freeing or allocating an extent.
2fb8b502 215 * 2 trees * (2 blocks/level * max depth - 1)
1da177e4 216 */
1da177e4
LT		 217#define XFS_ALLOCFREE_LOG_COUNT(mp,nx) \
218 ((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1)))
219
220/*
221 * Per-directory log reservation for any directory change.
2fb8b502
JL		 222 * dir blocks: (1 btree block per level + data block + free block)
223 * bmap btree: (levels + 2) * max depth
1da177e4
LT		 224 * v2 directory blocks can be fragmented below the dirblksize down to the fsb
225 * size, so account for that in the DAENTER macros.
226 */
1da177e4
LT		 227#define XFS_DIROP_LOG_COUNT(mp) \
228 (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \
229 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)
230
1da177e4
LT		 231
232#define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write)
1da177e4 233#define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate)
1da177e4 234#define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename)
1da177e4 235#define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link)
1da177e4 236#define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove)
1da177e4 237#define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink)
1da177e4 238#define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create)
1da177e4 239#define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir)
1da177e4 240#define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree)
1da177e4 241#define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange)
1da177e4 242#define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata)
1da177e4 243#define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc)
1da177e4 244#define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero)
1da177e4 245#define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree)
1da177e4 246#define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
1da177e4
LT		 247/*
248 * Logging the inode timestamps on an fsync -- same as SWRITE
249 * as long as SWRITE logs the entire inode core
250 */
251#define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
a21cd503 252#define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
1da177e4 253#define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork)
1da177e4 254#define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval)
a21cd503
JL		 255#define XFS_ATTRSETM_LOG_RES(mp) ((mp)->m_reservations.tr_attrsetm)
256#define XFS_ATTRSETRT_LOG_RES(mp) ((mp)->m_reservations.tr_attrsetrt)
257#define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm)
1da177e4 258#define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi)
b0c10b98 259#define XFS_QM_SBCHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_qm_sbchange)
f0f2df94 260#define XFS_QM_SETQLIM_LOG_RES(mp) ((mp)->m_reservations.tr_qm_setqlim)
48001044 261#define XFS_QM_DQALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_qm_dqalloc)
a1bd9557 262#define XFS_QM_QUOTAOFF_LOG_RES(mp) ((mp)->m_reservations.tr_qm_quotaoff)
762d7ba6 263#define XFS_QM_QUOTAOFF_END_LOG_RES(mp) ((mp)->m_reservations.tr_qm_equotaoff)
a7bd794a 264#define XFS_SB_LOG_RES(mp) ((mp)->m_reservations.tr_sb)
1da177e4
LT		 265
266/*
267 * Various log count values.
268 */
269#define XFS_DEFAULT_LOG_COUNT 1
270#define XFS_DEFAULT_PERM_LOG_COUNT 2
271#define XFS_ITRUNCATE_LOG_COUNT 2
272#define XFS_INACTIVE_LOG_COUNT 2
273#define XFS_CREATE_LOG_COUNT 2
274#define XFS_MKDIR_LOG_COUNT 3
275#define XFS_SYMLINK_LOG_COUNT 3
276#define XFS_REMOVE_LOG_COUNT 2
277#define XFS_LINK_LOG_COUNT 2
278#define XFS_RENAME_LOG_COUNT 2
279#define XFS_WRITE_LOG_COUNT 2
280#define XFS_ADDAFORK_LOG_COUNT 2
281#define XFS_ATTRINVAL_LOG_COUNT 1
282#define XFS_ATTRSET_LOG_COUNT 3
283#define XFS_ATTRRM_LOG_COUNT 3
284
285/*
286 * Here we centralize the specification of XFS meta-data buffer
287 * reference count values. This determine how hard the buffer
288 * cache tries to hold onto the buffer.
289 */
290#define XFS_AGF_REF 4
291#define XFS_AGI_REF 4
292#define XFS_AGFL_REF 3
293#define XFS_INO_BTREE_REF 3
294#define XFS_ALLOC_BTREE_REF 2
295#define XFS_BMAP_BTREE_REF 2
296#define XFS_DIR_BTREE_REF 2
821eb21d 297#define XFS_INO_REF 2
1da177e4 298#define XFS_ATTR_BTREE_REF 1
1da177e4
LT		 299#define XFS_DQUOT_REF 1
300
301#ifdef __KERNEL__
847fff5c
BN		 302
303struct xfs_buf;
304struct xfs_buftarg;
305struct xfs_efd_log_item;
306struct xfs_efi_log_item;
307struct xfs_inode;
308struct xfs_item_ops;
309struct xfs_log_iovec;
310struct xfs_log_item_desc;
311struct xfs_mount;
312struct xfs_trans;
313struct xfs_dquot_acct;
ed3b4d6c 314struct xfs_busy_extent;
847fff5c
BN		 315
316typedef struct xfs_log_item {
317 struct list_head li_ail; /* AIL pointers */
318 xfs_lsn_t li_lsn; /* last on-disk lsn */
319 struct xfs_log_item_desc *li_desc; /* ptr to current desc*/
320 struct xfs_mount *li_mountp; /* ptr to fs mount */
fc1829f3 321 struct xfs_ail *li_ailp; /* ptr to AIL */
847fff5c
BN		 322 uint li_type; /* item type */
323 uint li_flags; /* misc flags */
324 struct xfs_log_item *li_bio_list; /* buffer item list */
325 void (*li_cb)(struct xfs_buf *,
326 struct xfs_log_item *);
327 /* buffer item iodone */
328 /* callback func */
272e42b2 329 const struct xfs_item_ops *li_ops; /* function list */
71e330b5
DC		 330
331 /* delayed logging */
332 struct list_head li_cil; /* CIL pointers */
333 struct xfs_log_vec *li_lv; /* active log vector */
ccf7c23f 334 xfs_lsn_t li_seq; /* CIL commit seq */
847fff5c
BN		 335} xfs_log_item_t;
336
337#define XFS_LI_IN_AIL 0x1
338#define XFS_LI_ABORTED 0x2
339
0b1b213f
CH		 340#define XFS_LI_FLAGS \
341 { XFS_LI_IN_AIL, "IN_AIL" }, \
342 { XFS_LI_ABORTED, "ABORTED" }
343
272e42b2 344struct xfs_item_ops {
847fff5c
BN		 345 uint (*iop_size)(xfs_log_item_t *);
346 void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *);
347 void (*iop_pin)(xfs_log_item_t *);
9412e318 348 void (*iop_unpin)(xfs_log_item_t *, int remove);
43ff2122 349 uint (*iop_push)(struct xfs_log_item *, struct list_head *);
847fff5c
BN		 350 void (*iop_unlock)(xfs_log_item_t *);
351 xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
847fff5c 352 void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
272e42b2 353};
847fff5c
BN		 354
355#define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip)
356#define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp)
357#define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip)
9412e318 358#define IOP_UNPIN(ip, remove) (*(ip)->li_ops->iop_unpin)(ip, remove)
43ff2122 359#define IOP_PUSH(ip, list) (*(ip)->li_ops->iop_push)(ip, list)
847fff5c
BN		 360#define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip)
361#define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn)
847fff5c
BN		 362#define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn)
363
364/*
43ff2122 365 * Return values for the IOP_PUSH() routines.
847fff5c 366 */
43ff2122
CH		 367#define XFS_ITEM_SUCCESS 0
368#define XFS_ITEM_PINNED 1
369#define XFS_ITEM_LOCKED 2
370#define XFS_ITEM_FLUSHING 3
847fff5c 371
847fff5c
BN		 372/*
373 * This is the type of function which can be given to xfs_trans_callback()
374 * to be called upon the transaction's commit to disk.
375 */
376typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *);
377
378/*
379 * This is the structure maintained for every active transaction.
380 */
381typedef struct xfs_trans {
382 unsigned int t_magic; /* magic number */
383 xfs_log_callback_t t_logcb; /* log callback struct */
384 unsigned int t_type; /* transaction type */
385 unsigned int t_log_res; /* amt of log space resvd */
386 unsigned int t_log_count; /* count for perm log res */
387 unsigned int t_blk_res; /* # of blocks resvd */
388 unsigned int t_blk_res_used; /* # of resvd blocks used */
389 unsigned int t_rtx_res; /* # of rt extents resvd */
390 unsigned int t_rtx_res_used; /* # of resvd rt extents used */
35a8a72f 391 struct xlog_ticket *t_ticket; /* log mgr ticket */
847fff5c
BN		 392 xfs_lsn_t t_lsn; /* log seq num of start of
393 * transaction. */
394 xfs_lsn_t t_commit_lsn; /* log seq num of end of
395 * transaction. */
396 struct xfs_mount *t_mountp; /* ptr to fs mount struct */
397 struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */
847fff5c
BN		 398 unsigned int t_flags; /* misc flags */
399 int64_t t_icount_delta; /* superblock icount change */
400 int64_t t_ifree_delta; /* superblock ifree change */
401 int64_t t_fdblocks_delta; /* superblock fdblocks chg */
402 int64_t t_res_fdblocks_delta; /* on-disk only chg */
403 int64_t t_frextents_delta;/* superblock freextents chg*/
404 int64_t t_res_frextents_delta; /* on-disk only chg */
742ae1e3 405#if defined(DEBUG) || defined(XFS_WARN)
847fff5c
BN		 406 int64_t t_ag_freeblks_delta; /* debugging counter */
407 int64_t t_ag_flist_delta; /* debugging counter */
408 int64_t t_ag_btree_delta; /* debugging counter */
409#endif
410 int64_t t_dblocks_delta;/* superblock dblocks change */
411 int64_t t_agcount_delta;/* superblock agcount change */
412 int64_t t_imaxpct_delta;/* superblock imaxpct change */
413 int64_t t_rextsize_delta;/* superblock rextsize chg */
414 int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */
415 int64_t t_rblocks_delta;/* superblock rblocks change */
416 int64_t t_rextents_delta;/* superblocks rextents chg */
417 int64_t t_rextslog_delta;/* superblocks rextslog chg */
e98c414f 418 struct list_head t_items; /* log item descriptors */
847fff5c 419 xfs_trans_header_t t_header; /* header for in-log trans */
ed3b4d6c 420 struct list_head t_busy; /* list of busy extents */
847fff5c
BN		 421 unsigned long t_pflags; /* saved process flags state */
422} xfs_trans_t;
423
1da177e4
LT		 424/*
425 * XFS transaction mechanism exported interfaces that are
426 * actually macros.
427 */
428#define xfs_trans_get_log_res(tp) ((tp)->t_log_res)
429#define xfs_trans_get_log_count(tp) ((tp)->t_log_count)
430#define xfs_trans_get_block_res(tp) ((tp)->t_blk_res)
431#define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC)
432
742ae1e3 433#if defined(DEBUG) || defined(XFS_WARN)
20f4ebf2
DC		 434#define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d)
435#define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d)
436#define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d)
1da177e4
LT		 437#else
438#define xfs_trans_agblocks_delta(tp, d)
439#define xfs_trans_agflist_delta(tp, d)
440#define xfs_trans_agbtree_delta(tp, d)
441#endif
442
443/*
444 * XFS transaction mechanism exported interfaces.
445 */
1da177e4 446xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint);
77ba7877 447xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, xfs_km_flags_t);
1da177e4
LT		 448xfs_trans_t *xfs_trans_dup(xfs_trans_t *);
449int xfs_trans_reserve(xfs_trans_t *, uint, uint, uint,
450 uint, uint);
20f4ebf2 451void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
de2a4f59
DC		 452
453struct xfs_buf *xfs_trans_get_buf_map(struct xfs_trans *tp,
454 struct xfs_buftarg *target,
455 struct xfs_buf_map *map, int nmaps,
456 uint flags);
457
458static inline struct xfs_buf *
459xfs_trans_get_buf(
460 struct xfs_trans *tp,
461 struct xfs_buftarg *target,
462 xfs_daddr_t blkno,
463 int numblks,
464 uint flags)
465{
c3f8fc73 466 DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
de2a4f59
DC		 467 return xfs_trans_get_buf_map(tp, target, &map, 1, flags);
468}
469
470int xfs_trans_read_buf_map(struct xfs_mount *mp,
471 struct xfs_trans *tp,
472 struct xfs_buftarg *target,
473 struct xfs_buf_map *map, int nmaps,
474 xfs_buf_flags_t flags,
c3f8fc73 475 struct xfs_buf **bpp,
1813dd64 476 const struct xfs_buf_ops *ops);
de2a4f59
DC		 477
478static inline int
479xfs_trans_read_buf(
480 struct xfs_mount *mp,
481 struct xfs_trans *tp,
482 struct xfs_buftarg *target,
483 xfs_daddr_t blkno,
484 int numblks,
485 xfs_buf_flags_t flags,
c3f8fc73 486 struct xfs_buf **bpp,
1813dd64 487 const struct xfs_buf_ops *ops)
de2a4f59 488{
c3f8fc73
DC		 489 DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
490 return xfs_trans_read_buf_map(mp, tp, target, &map, 1,
1813dd64 491 flags, bpp, ops);
de2a4f59
DC		 492}
493
1da177e4
LT		 494struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int);
495
496void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
497void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
498void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
efa092f3 499void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
1da177e4
LT		 500void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
501void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
1da177e4 502void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
5f6bed76 503void xfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *);
1da177e4
LT		 504void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
505void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
dcd79a14 506void xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
ddc3415a 507void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
1da177e4
LT		 508void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
509void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
510struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint);
511void xfs_efi_release(struct xfs_efi_log_item *, uint);
512void xfs_trans_log_efi_extent(xfs_trans_t *,
513 struct xfs_efi_log_item *,
514 xfs_fsblock_t,
515 xfs_extlen_t);
516struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *,
517 struct xfs_efi_log_item *,
518 uint);
519void xfs_trans_log_efd_extent(xfs_trans_t *,
520 struct xfs_efd_log_item *,
521 xfs_fsblock_t,
522 xfs_extlen_t);
b1037058 523int xfs_trans_commit(xfs_trans_t *, uint flags);
1da177e4 524void xfs_trans_cancel(xfs_trans_t *, int);
249a8c11
DC		 525int xfs_trans_ail_init(struct xfs_mount *);
526void xfs_trans_ail_destroy(struct xfs_mount *);
1da177e4 527
a8272ce0 528extern kmem_zone_t *xfs_trans_zone;
e98c414f 529extern kmem_zone_t *xfs_log_item_desc_zone;
a8272ce0 530
1da177e4
LT		 531#endif /* __KERNEL__ */
532
847fff5c
BN		 533void xfs_trans_init(struct xfs_mount *);
534int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
535
1da177e4 536#endif /* __XFS_TRANS_H__ */
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