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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 |
21 | struct 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 | */ | |
32 | typedef 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 | |
51 | ||
9abbc539 DC |
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 | ||
1da177e4 LT |
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 | |
13e6d5cd | 80 | /* 17 was XFS_TRANS_WRITE_SYNC */ |
1da177e4 LT |
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 | |
92821e2b | 108 | #define XFS_TRANS_SB_COUNT 41 |
71e330b5 DC |
109 | #define XFS_TRANS_CHECKPOINT 42 |
110 | #define XFS_TRANS_TYPE_MAX 42 | |
1da177e4 LT |
111 | /* new transaction types need to be reflected in xfs_logprint(8) */ |
112 | ||
0b1b213f CH |
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" }, \ | |
71e330b5 | 152 | { XFS_TRANS_CHECKPOINT, "CHECKPOINT" }, \ |
0b1b213f CH |
153 | { XFS_TRANS_DUMMY1, "DUMMY1" }, \ |
154 | { XFS_TRANS_DUMMY2, "DUMMY2" }, \ | |
155 | { XLOG_UNMOUNT_REC_TYPE, "UNMOUNT" } | |
156 | ||
1da177e4 LT |
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 | */ | |
e98c414f | 164 | struct xfs_log_item_desc { |
847fff5c | 165 | struct xfs_log_item *lid_item; |
e98c414f | 166 | struct list_head lid_trans; |
b3934213 | 167 | unsigned char lid_flags; |
e98c414f | 168 | }; |
1da177e4 LT |
169 | |
170 | #define XFS_LID_DIRTY 0x1 | |
1da177e4 | 171 | |
1da177e4 LT |
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 */ | |
d9457dc0 JK |
182 | #define XFS_TRANS_FREEZE_PROT 0x40 /* Transaction has elevated writer |
183 | count in superblock */ | |
1da177e4 LT |
184 | |
185 | /* | |
186 | * Values for call flags parameter. | |
187 | */ | |
1da177e4 LT |
188 | #define XFS_TRANS_RELEASE_LOG_RES 0x4 |
189 | #define XFS_TRANS_ABORT 0x8 | |
190 | ||
191 | /* | |
192 | * Field values for xfs_trans_mod_sb. | |
193 | */ | |
194 | #define XFS_TRANS_SB_ICOUNT 0x00000001 | |
195 | #define XFS_TRANS_SB_IFREE 0x00000002 | |
196 | #define XFS_TRANS_SB_FDBLOCKS 0x00000004 | |
197 | #define XFS_TRANS_SB_RES_FDBLOCKS 0x00000008 | |
198 | #define XFS_TRANS_SB_FREXTENTS 0x00000010 | |
199 | #define XFS_TRANS_SB_RES_FREXTENTS 0x00000020 | |
200 | #define XFS_TRANS_SB_DBLOCKS 0x00000040 | |
201 | #define XFS_TRANS_SB_AGCOUNT 0x00000080 | |
202 | #define XFS_TRANS_SB_IMAXPCT 0x00000100 | |
203 | #define XFS_TRANS_SB_REXTSIZE 0x00000200 | |
204 | #define XFS_TRANS_SB_RBMBLOCKS 0x00000400 | |
205 | #define XFS_TRANS_SB_RBLOCKS 0x00000800 | |
206 | #define XFS_TRANS_SB_REXTENTS 0x00001000 | |
207 | #define XFS_TRANS_SB_REXTSLOG 0x00002000 | |
208 | ||
209 | ||
1da177e4 LT |
210 | /* |
211 | * Per-extent log reservation for the allocation btree changes | |
212 | * involved in freeing or allocating an extent. | |
213 | * 2 trees * (2 blocks/level * max depth - 1) * block size | |
214 | */ | |
215 | #define XFS_ALLOCFREE_LOG_RES(mp,nx) \ | |
216 | ((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1))) | |
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. | |
222 | * dir blocks: (1 btree block per level + data block + free block) * dblock size | |
223 | * bmap btree: (levels + 2) * max depth * block size | |
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 | */ | |
227 | #define XFS_DIROP_LOG_RES(mp) \ | |
228 | (XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \ | |
229 | (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1))) | |
230 | #define XFS_DIROP_LOG_COUNT(mp) \ | |
231 | (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \ | |
232 | XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1) | |
233 | ||
1da177e4 LT |
234 | |
235 | #define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write) | |
1da177e4 | 236 | #define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate) |
1da177e4 | 237 | #define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename) |
1da177e4 | 238 | #define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link) |
1da177e4 | 239 | #define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove) |
1da177e4 | 240 | #define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink) |
1da177e4 | 241 | #define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create) |
1da177e4 | 242 | #define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir) |
1da177e4 | 243 | #define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree) |
1da177e4 | 244 | #define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange) |
1da177e4 | 245 | #define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata) |
1da177e4 | 246 | #define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc) |
1da177e4 | 247 | #define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero) |
1da177e4 | 248 | #define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree) |
1da177e4 | 249 | #define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) |
1da177e4 LT |
250 | /* |
251 | * Logging the inode timestamps on an fsync -- same as SWRITE | |
252 | * as long as SWRITE logs the entire inode core | |
253 | */ | |
254 | #define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) | |
a21cd503 | 255 | #define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) |
1da177e4 | 256 | #define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork) |
1da177e4 | 257 | #define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval) |
a21cd503 JL |
258 | #define XFS_ATTRSETM_LOG_RES(mp) ((mp)->m_reservations.tr_attrsetm) |
259 | #define XFS_ATTRSETRT_LOG_RES(mp) ((mp)->m_reservations.tr_attrsetrt) | |
260 | #define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm) | |
1da177e4 | 261 | #define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi) |
b0c10b98 | 262 | #define XFS_QM_SBCHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_qm_sbchange) |
f0f2df94 | 263 | #define XFS_QM_SETQLIM_LOG_RES(mp) ((mp)->m_reservations.tr_qm_setqlim) |
48001044 | 264 | #define XFS_QM_DQALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_qm_dqalloc) |
a1bd9557 | 265 | #define XFS_QM_QUOTAOFF_LOG_RES(mp) ((mp)->m_reservations.tr_qm_quotaoff) |
762d7ba6 | 266 | #define XFS_QM_QUOTAOFF_END_LOG_RES(mp) ((mp)->m_reservations.tr_qm_equotaoff) |
a7bd794a | 267 | #define XFS_SB_LOG_RES(mp) ((mp)->m_reservations.tr_sb) |
1da177e4 LT |
268 | |
269 | /* | |
270 | * Various log count values. | |
271 | */ | |
272 | #define XFS_DEFAULT_LOG_COUNT 1 | |
273 | #define XFS_DEFAULT_PERM_LOG_COUNT 2 | |
274 | #define XFS_ITRUNCATE_LOG_COUNT 2 | |
275 | #define XFS_INACTIVE_LOG_COUNT 2 | |
276 | #define XFS_CREATE_LOG_COUNT 2 | |
277 | #define XFS_MKDIR_LOG_COUNT 3 | |
278 | #define XFS_SYMLINK_LOG_COUNT 3 | |
279 | #define XFS_REMOVE_LOG_COUNT 2 | |
280 | #define XFS_LINK_LOG_COUNT 2 | |
281 | #define XFS_RENAME_LOG_COUNT 2 | |
282 | #define XFS_WRITE_LOG_COUNT 2 | |
283 | #define XFS_ADDAFORK_LOG_COUNT 2 | |
284 | #define XFS_ATTRINVAL_LOG_COUNT 1 | |
285 | #define XFS_ATTRSET_LOG_COUNT 3 | |
286 | #define XFS_ATTRRM_LOG_COUNT 3 | |
287 | ||
288 | /* | |
289 | * Here we centralize the specification of XFS meta-data buffer | |
290 | * reference count values. This determine how hard the buffer | |
291 | * cache tries to hold onto the buffer. | |
292 | */ | |
293 | #define XFS_AGF_REF 4 | |
294 | #define XFS_AGI_REF 4 | |
295 | #define XFS_AGFL_REF 3 | |
296 | #define XFS_INO_BTREE_REF 3 | |
297 | #define XFS_ALLOC_BTREE_REF 2 | |
298 | #define XFS_BMAP_BTREE_REF 2 | |
299 | #define XFS_DIR_BTREE_REF 2 | |
821eb21d | 300 | #define XFS_INO_REF 2 |
1da177e4 | 301 | #define XFS_ATTR_BTREE_REF 1 |
1da177e4 LT |
302 | #define XFS_DQUOT_REF 1 |
303 | ||
304 | #ifdef __KERNEL__ | |
847fff5c BN |
305 | |
306 | struct xfs_buf; | |
307 | struct xfs_buftarg; | |
308 | struct xfs_efd_log_item; | |
309 | struct xfs_efi_log_item; | |
310 | struct xfs_inode; | |
311 | struct xfs_item_ops; | |
312 | struct xfs_log_iovec; | |
313 | struct xfs_log_item_desc; | |
314 | struct xfs_mount; | |
315 | struct xfs_trans; | |
316 | struct xfs_dquot_acct; | |
ed3b4d6c | 317 | struct xfs_busy_extent; |
847fff5c BN |
318 | |
319 | typedef struct xfs_log_item { | |
320 | struct list_head li_ail; /* AIL pointers */ | |
321 | xfs_lsn_t li_lsn; /* last on-disk lsn */ | |
322 | struct xfs_log_item_desc *li_desc; /* ptr to current desc*/ | |
323 | struct xfs_mount *li_mountp; /* ptr to fs mount */ | |
fc1829f3 | 324 | struct xfs_ail *li_ailp; /* ptr to AIL */ |
847fff5c BN |
325 | uint li_type; /* item type */ |
326 | uint li_flags; /* misc flags */ | |
327 | struct xfs_log_item *li_bio_list; /* buffer item list */ | |
328 | void (*li_cb)(struct xfs_buf *, | |
329 | struct xfs_log_item *); | |
330 | /* buffer item iodone */ | |
331 | /* callback func */ | |
272e42b2 | 332 | const struct xfs_item_ops *li_ops; /* function list */ |
71e330b5 DC |
333 | |
334 | /* delayed logging */ | |
335 | struct list_head li_cil; /* CIL pointers */ | |
336 | struct xfs_log_vec *li_lv; /* active log vector */ | |
ccf7c23f | 337 | xfs_lsn_t li_seq; /* CIL commit seq */ |
847fff5c BN |
338 | } xfs_log_item_t; |
339 | ||
340 | #define XFS_LI_IN_AIL 0x1 | |
341 | #define XFS_LI_ABORTED 0x2 | |
342 | ||
0b1b213f CH |
343 | #define XFS_LI_FLAGS \ |
344 | { XFS_LI_IN_AIL, "IN_AIL" }, \ | |
345 | { XFS_LI_ABORTED, "ABORTED" } | |
346 | ||
272e42b2 | 347 | struct xfs_item_ops { |
847fff5c BN |
348 | uint (*iop_size)(xfs_log_item_t *); |
349 | void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *); | |
350 | void (*iop_pin)(xfs_log_item_t *); | |
9412e318 | 351 | void (*iop_unpin)(xfs_log_item_t *, int remove); |
43ff2122 | 352 | uint (*iop_push)(struct xfs_log_item *, struct list_head *); |
847fff5c BN |
353 | void (*iop_unlock)(xfs_log_item_t *); |
354 | xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t); | |
847fff5c | 355 | void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t); |
272e42b2 | 356 | }; |
847fff5c BN |
357 | |
358 | #define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip) | |
359 | #define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp) | |
360 | #define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip) | |
9412e318 | 361 | #define IOP_UNPIN(ip, remove) (*(ip)->li_ops->iop_unpin)(ip, remove) |
43ff2122 | 362 | #define IOP_PUSH(ip, list) (*(ip)->li_ops->iop_push)(ip, list) |
847fff5c BN |
363 | #define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip) |
364 | #define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn) | |
847fff5c BN |
365 | #define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn) |
366 | ||
367 | /* | |
43ff2122 | 368 | * Return values for the IOP_PUSH() routines. |
847fff5c | 369 | */ |
43ff2122 CH |
370 | #define XFS_ITEM_SUCCESS 0 |
371 | #define XFS_ITEM_PINNED 1 | |
372 | #define XFS_ITEM_LOCKED 2 | |
373 | #define XFS_ITEM_FLUSHING 3 | |
847fff5c | 374 | |
847fff5c BN |
375 | /* |
376 | * 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 | */ | |
379 | typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *); | |
380 | ||
381 | /* | |
382 | * This is the structure maintained for every active transaction. | |
383 | */ | |
384 | typedef 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 */ | |
35a8a72f | 394 | struct xlog_ticket *t_ticket; /* log mgr ticket */ |
847fff5c BN |
395 | 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 */ | |
847fff5c BN |
401 | 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 */ | |
e98c414f | 421 | struct list_head t_items; /* log item descriptors */ |
847fff5c | 422 | xfs_trans_header_t t_header; /* header for in-log trans */ |
ed3b4d6c | 423 | struct list_head t_busy; /* list of busy extents */ |
847fff5c BN |
424 | unsigned long t_pflags; /* saved process flags state */ |
425 | } xfs_trans_t; | |
426 | ||
1da177e4 LT |
427 | /* |
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 | |
20f4ebf2 DC |
437 | #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) | |
1da177e4 LT |
440 | #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 | */ | |
1da177e4 | 449 | xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint); |
77ba7877 | 450 | xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, xfs_km_flags_t); |
1da177e4 LT |
451 | xfs_trans_t *xfs_trans_dup(xfs_trans_t *); |
452 | int xfs_trans_reserve(xfs_trans_t *, uint, uint, uint, | |
453 | uint, uint); | |
20f4ebf2 | 454 | void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t); |
de2a4f59 DC |
455 | |
456 | struct xfs_buf *xfs_trans_get_buf_map(struct xfs_trans *tp, | |
457 | struct xfs_buftarg *target, | |
458 | struct xfs_buf_map *map, int nmaps, | |
459 | uint flags); | |
460 | ||
461 | static inline struct xfs_buf * | |
462 | xfs_trans_get_buf( | |
463 | struct xfs_trans *tp, | |
464 | struct xfs_buftarg *target, | |
465 | xfs_daddr_t blkno, | |
466 | int numblks, | |
467 | uint flags) | |
468 | { | |
c3f8fc73 | 469 | DEFINE_SINGLE_BUF_MAP(map, blkno, numblks); |
de2a4f59 DC |
470 | return xfs_trans_get_buf_map(tp, target, &map, 1, flags); |
471 | } | |
472 | ||
473 | int xfs_trans_read_buf_map(struct xfs_mount *mp, | |
474 | struct xfs_trans *tp, | |
475 | struct xfs_buftarg *target, | |
476 | struct xfs_buf_map *map, int nmaps, | |
477 | xfs_buf_flags_t flags, | |
c3f8fc73 | 478 | struct xfs_buf **bpp, |
1813dd64 | 479 | const struct xfs_buf_ops *ops); |
de2a4f59 DC |
480 | |
481 | static inline int | |
482 | xfs_trans_read_buf( | |
483 | struct xfs_mount *mp, | |
484 | struct xfs_trans *tp, | |
485 | struct xfs_buftarg *target, | |
486 | xfs_daddr_t blkno, | |
487 | int numblks, | |
488 | xfs_buf_flags_t flags, | |
c3f8fc73 | 489 | struct xfs_buf **bpp, |
1813dd64 | 490 | const struct xfs_buf_ops *ops) |
de2a4f59 | 491 | { |
c3f8fc73 DC |
492 | DEFINE_SINGLE_BUF_MAP(map, blkno, numblks); |
493 | return xfs_trans_read_buf_map(mp, tp, target, &map, 1, | |
1813dd64 | 494 | flags, bpp, ops); |
de2a4f59 DC |
495 | } |
496 | ||
1da177e4 LT |
497 | struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int); |
498 | ||
499 | void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *); | |
500 | void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *); | |
501 | void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *); | |
efa092f3 | 502 | void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *); |
1da177e4 LT |
503 | void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *); |
504 | void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *); | |
1da177e4 LT |
505 | void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *); |
506 | void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint); | |
507 | void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *); | |
dcd79a14 | 508 | void xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int); |
ddc3415a | 509 | void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint); |
1da177e4 LT |
510 | void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint); |
511 | void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint); | |
512 | struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint); | |
513 | void xfs_efi_release(struct xfs_efi_log_item *, uint); | |
514 | void xfs_trans_log_efi_extent(xfs_trans_t *, | |
515 | struct xfs_efi_log_item *, | |
516 | xfs_fsblock_t, | |
517 | xfs_extlen_t); | |
518 | struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *, | |
519 | struct xfs_efi_log_item *, | |
520 | uint); | |
521 | void xfs_trans_log_efd_extent(xfs_trans_t *, | |
522 | struct xfs_efd_log_item *, | |
523 | xfs_fsblock_t, | |
524 | xfs_extlen_t); | |
b1037058 | 525 | int xfs_trans_commit(xfs_trans_t *, uint flags); |
1da177e4 | 526 | void xfs_trans_cancel(xfs_trans_t *, int); |
249a8c11 DC |
527 | int xfs_trans_ail_init(struct xfs_mount *); |
528 | void xfs_trans_ail_destroy(struct xfs_mount *); | |
1da177e4 | 529 | |
a8272ce0 | 530 | extern kmem_zone_t *xfs_trans_zone; |
e98c414f | 531 | extern kmem_zone_t *xfs_log_item_desc_zone; |
a8272ce0 | 532 | |
1da177e4 LT |
533 | #endif /* __KERNEL__ */ |
534 | ||
847fff5c BN |
535 | void xfs_trans_init(struct xfs_mount *); |
536 | int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *); | |
537 | ||
1da177e4 | 538 | #endif /* __XFS_TRANS_H__ */ |