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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott7b718762005-11-02 14:58:39 +11002 * Copyright (c) 2000-2002,2005 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_TRANS_H__
19#define __XFS_TRANS_H__
20
Barry Naujok847fff52008-10-30 17:05:38 +110021struct xfs_log_item;
22
Linus Torvalds1da177e2005-04-16 15:20:36 -070023/*
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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070044#define XFS_LI_EFI 0x1236
45#define XFS_LI_EFD 0x1237
46#define XFS_LI_IUNLINK 0x1238
Linus Torvalds1da177e2005-04-16 15:20:36 -070047#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
Dave Chinner9abbc532010-04-13 15:06:46 +100052#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
Linus Torvalds1da177e2005-04-16 15:20:36 -070061/*
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
Christoph Hellwig13e6d5c2009-08-31 21:00:31 -030080/* 17 was XFS_TRANS_WRITE_SYNC */
Linus Torvalds1da177e2005-04-16 15:20:36 -070081#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
David Chinner92821e22007-05-24 15:26:31 +1000108#define XFS_TRANS_SB_COUNT 41
Dave Chinner71e330b2010-05-21 14:37:18 +1000109#define XFS_TRANS_CHECKPOINT 42
110#define XFS_TRANS_TYPE_MAX 42
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111/* new transaction types need to be reflected in xfs_logprint(8) */
112
Christoph Hellwig0b1b2132009-12-14 23:14:59 +0000113#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" }, \
Dave Chinner71e330b2010-05-21 14:37:18 +1000152 { XFS_TRANS_CHECKPOINT, "CHECKPOINT" }, \
Christoph Hellwig0b1b2132009-12-14 23:14:59 +0000153 { XFS_TRANS_DUMMY1, "DUMMY1" }, \
154 { XFS_TRANS_DUMMY2, "DUMMY2" }, \
155 { XLOG_UNMOUNT_REC_TYPE, "UNMOUNT" }
156
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157/*
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 */
Christoph Hellwige98c4142010-06-23 18:11:15 +1000164struct xfs_log_item_desc {
Barry Naujok847fff52008-10-30 17:05:38 +1100165 struct xfs_log_item *lid_item;
Christoph Hellwige98c4142010-06-23 18:11:15 +1000166 struct list_head lid_trans;
Christoph Hellwigb3934212011-12-06 21:58:09 +0000167 unsigned char lid_flags;
Christoph Hellwige98c4142010-06-23 18:11:15 +1000168};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169
170#define XFS_LID_DIRTY 0x1
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172#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 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186#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/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209 * 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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232
233#define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234#define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235#define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236#define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237#define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238#define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239#define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240#define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241#define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242#define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243#define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244#define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245#define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246#define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247#define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248/*
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)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253#define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254#define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255#define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256#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)))))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261#define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262#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
Dave Chinner821eb212010-12-02 16:31:13 +1100296#define XFS_INO_REF 2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297#define XFS_ATTR_BTREE_REF 1
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298#define XFS_DQUOT_REF 1
299
300#ifdef __KERNEL__
Barry Naujok847fff52008-10-30 17:05:38 +1100301
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;
Dave Chinnered3b4d62010-05-21 12:07:08 +1000313struct xfs_busy_extent;
Barry Naujok847fff52008-10-30 17:05:38 +1100314
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 */
David Chinnerfc1829f2008-10-30 17:39:46 +1100320 struct xfs_ail *li_ailp; /* ptr to AIL */
Barry Naujok847fff52008-10-30 17:05:38 +1100321 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 */
Christoph Hellwig272e42b2011-10-28 09:54:24 +0000328 const struct xfs_item_ops *li_ops; /* function list */
Dave Chinner71e330b2010-05-21 14:37:18 +1000329
330 /* delayed logging */
331 struct list_head li_cil; /* CIL pointers */
332 struct xfs_log_vec *li_lv; /* active log vector */
Dave Chinnerccf7c232010-05-20 23:19:42 +1000333 xfs_lsn_t li_seq; /* CIL commit seq */
Barry Naujok847fff52008-10-30 17:05:38 +1100334} xfs_log_item_t;
335
336#define XFS_LI_IN_AIL 0x1
337#define XFS_LI_ABORTED 0x2
338
Christoph Hellwig0b1b2132009-12-14 23:14:59 +0000339#define XFS_LI_FLAGS \
340 { XFS_LI_IN_AIL, "IN_AIL" }, \
341 { XFS_LI_ABORTED, "ABORTED" }
342
Christoph Hellwig272e42b2011-10-28 09:54:24 +0000343struct xfs_item_ops {
Barry Naujok847fff52008-10-30 17:05:38 +1100344 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 *);
Christoph Hellwig9412e312010-06-23 18:11:15 +1000347 void (*iop_unpin)(xfs_log_item_t *, int remove);
Barry Naujok847fff52008-10-30 17:05:38 +1100348 uint (*iop_trylock)(xfs_log_item_t *);
349 void (*iop_unlock)(xfs_log_item_t *);
350 xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
351 void (*iop_push)(xfs_log_item_t *);
Christoph Hellwig17b38472011-10-11 15:14:09 +0000352 bool (*iop_pushbuf)(xfs_log_item_t *);
Barry Naujok847fff52008-10-30 17:05:38 +1100353 void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
Christoph Hellwig272e42b2011-10-28 09:54:24 +0000354};
Barry Naujok847fff52008-10-30 17:05:38 +1100355
356#define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip)
357#define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp)
358#define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip)
Christoph Hellwig9412e312010-06-23 18:11:15 +1000359#define IOP_UNPIN(ip, remove) (*(ip)->li_ops->iop_unpin)(ip, remove)
Barry Naujok847fff52008-10-30 17:05:38 +1100360#define IOP_TRYLOCK(ip) (*(ip)->li_ops->iop_trylock)(ip)
361#define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip)
362#define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn)
363#define IOP_PUSH(ip) (*(ip)->li_ops->iop_push)(ip)
364#define IOP_PUSHBUF(ip) (*(ip)->li_ops->iop_pushbuf)(ip)
365#define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn)
366
367/*
368 * Return values for the IOP_TRYLOCK() routines.
369 */
370#define XFS_ITEM_SUCCESS 0
371#define XFS_ITEM_PINNED 1
372#define XFS_ITEM_LOCKED 2
Dave Chinnerd808f612010-02-02 10:13:42 +1100373#define XFS_ITEM_PUSHBUF 3
Barry Naujok847fff52008-10-30 17:05:38 +1100374
375/*
Barry Naujok847fff52008-10-30 17:05:38 +1100376 * This is the type of function which can be given to xfs_trans_callback()
377 * to be called upon the transaction's commit to disk.
378 */
379typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *);
380
381/*
382 * This is the structure maintained for every active transaction.
383 */
384typedef struct xfs_trans {
385 unsigned int t_magic; /* magic number */
386 xfs_log_callback_t t_logcb; /* log callback struct */
387 unsigned int t_type; /* transaction type */
388 unsigned int t_log_res; /* amt of log space resvd */
389 unsigned int t_log_count; /* count for perm log res */
390 unsigned int t_blk_res; /* # of blocks resvd */
391 unsigned int t_blk_res_used; /* # of resvd blocks used */
392 unsigned int t_rtx_res; /* # of rt extents resvd */
393 unsigned int t_rtx_res_used; /* # of resvd rt extents used */
Christoph Hellwig35a8a722010-02-15 23:34:54 +0000394 struct xlog_ticket *t_ticket; /* log mgr ticket */
Barry Naujok847fff52008-10-30 17:05:38 +1100395 xfs_lsn_t t_lsn; /* log seq num of start of
396 * transaction. */
397 xfs_lsn_t t_commit_lsn; /* log seq num of end of
398 * transaction. */
399 struct xfs_mount *t_mountp; /* ptr to fs mount struct */
400 struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */
Barry Naujok847fff52008-10-30 17:05:38 +1100401 unsigned int t_flags; /* misc flags */
402 int64_t t_icount_delta; /* superblock icount change */
403 int64_t t_ifree_delta; /* superblock ifree change */
404 int64_t t_fdblocks_delta; /* superblock fdblocks chg */
405 int64_t t_res_fdblocks_delta; /* on-disk only chg */
406 int64_t t_frextents_delta;/* superblock freextents chg*/
407 int64_t t_res_frextents_delta; /* on-disk only chg */
408#ifdef DEBUG
409 int64_t t_ag_freeblks_delta; /* debugging counter */
410 int64_t t_ag_flist_delta; /* debugging counter */
411 int64_t t_ag_btree_delta; /* debugging counter */
412#endif
413 int64_t t_dblocks_delta;/* superblock dblocks change */
414 int64_t t_agcount_delta;/* superblock agcount change */
415 int64_t t_imaxpct_delta;/* superblock imaxpct change */
416 int64_t t_rextsize_delta;/* superblock rextsize chg */
417 int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */
418 int64_t t_rblocks_delta;/* superblock rblocks change */
419 int64_t t_rextents_delta;/* superblocks rextents chg */
420 int64_t t_rextslog_delta;/* superblocks rextslog chg */
Christoph Hellwige98c4142010-06-23 18:11:15 +1000421 struct list_head t_items; /* log item descriptors */
Barry Naujok847fff52008-10-30 17:05:38 +1100422 xfs_trans_header_t t_header; /* header for in-log trans */
Dave Chinnered3b4d62010-05-21 12:07:08 +1000423 struct list_head t_busy; /* list of busy extents */
Barry Naujok847fff52008-10-30 17:05:38 +1100424 unsigned long t_pflags; /* saved process flags state */
425} xfs_trans_t;
426
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427/*
428 * XFS transaction mechanism exported interfaces that are
429 * actually macros.
430 */
431#define xfs_trans_get_log_res(tp) ((tp)->t_log_res)
432#define xfs_trans_get_log_count(tp) ((tp)->t_log_count)
433#define xfs_trans_get_block_res(tp) ((tp)->t_blk_res)
434#define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC)
435
436#ifdef DEBUG
David Chinner20f4ebf2007-02-10 18:36:10 +1100437#define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d)
438#define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d)
439#define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440#else
441#define xfs_trans_agblocks_delta(tp, d)
442#define xfs_trans_agflist_delta(tp, d)
443#define xfs_trans_agbtree_delta(tp, d)
444#endif
445
446/*
447 * XFS transaction mechanism exported interfaces.
448 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint);
Christoph Hellwig80641dc2009-10-19 04:00:03 +0000450xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, uint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451xfs_trans_t *xfs_trans_dup(xfs_trans_t *);
452int xfs_trans_reserve(xfs_trans_t *, uint, uint, uint,
453 uint, uint);
David Chinner20f4ebf2007-02-10 18:36:10 +1100454void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455struct xfs_buf *xfs_trans_get_buf(xfs_trans_t *, struct xfs_buftarg *, xfs_daddr_t,
456 int, uint);
457int xfs_trans_read_buf(struct xfs_mount *, xfs_trans_t *,
458 struct xfs_buftarg *, xfs_daddr_t, int, uint,
459 struct xfs_buf **);
460struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int);
461
462void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
463void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
464void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
Tim Shimminefa092f2005-09-05 08:29:01 +1000465void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
467void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
469void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
470void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
Dave Chinnerdcd79a12010-09-28 12:27:25 +1000471void xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
Christoph Hellwigddc34152011-09-19 15:00:54 +0000472void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
474void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
475struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint);
476void xfs_efi_release(struct xfs_efi_log_item *, uint);
477void xfs_trans_log_efi_extent(xfs_trans_t *,
478 struct xfs_efi_log_item *,
479 xfs_fsblock_t,
480 xfs_extlen_t);
481struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *,
482 struct xfs_efi_log_item *,
483 uint);
484void xfs_trans_log_efd_extent(xfs_trans_t *,
485 struct xfs_efd_log_item *,
486 xfs_fsblock_t,
487 xfs_extlen_t);
Christoph Hellwigb1037052011-09-19 14:55:51 +0000488int xfs_trans_commit(xfs_trans_t *, uint flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489void xfs_trans_cancel(xfs_trans_t *, int);
David Chinner249a8c12008-02-05 12:13:32 +1100490int xfs_trans_ail_init(struct xfs_mount *);
491void xfs_trans_ail_destroy(struct xfs_mount *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492
David Chinnera8272ce2007-11-23 16:28:09 +1100493extern kmem_zone_t *xfs_trans_zone;
Christoph Hellwige98c4142010-06-23 18:11:15 +1000494extern kmem_zone_t *xfs_log_item_desc_zone;
David Chinnera8272ce2007-11-23 16:28:09 +1100495
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496#endif /* __KERNEL__ */
497
Barry Naujok847fff52008-10-30 17:05:38 +1100498void xfs_trans_init(struct xfs_mount *);
499int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
500
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501#endif /* __XFS_TRANS_H__ */