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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of version 2 of the GNU General Public License as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it would be useful, but | |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
11 | * | |
12 | * Further, this software is distributed without any warranty that it is | |
13 | * free of the rightful claim of any third person regarding infringement | |
14 | * or the like. Any license provided herein, whether implied or | |
15 | * otherwise, applies only to this software file. Patent licenses, if | |
16 | * any, provided herein do not apply to combinations of this program with | |
17 | * other software, or any other product whatsoever. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along | |
20 | * with this program; if not, write the Free Software Foundation, Inc., 59 | |
21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
22 | * | |
23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, | |
24 | * Mountain View, CA 94043, or: | |
25 | * | |
26 | * http://www.sgi.com | |
27 | * | |
28 | * For further information regarding this notice, see: | |
29 | * | |
30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ | |
31 | */ | |
32 | #ifndef __XFS_TRANS_H__ | |
33 | #define __XFS_TRANS_H__ | |
34 | ||
35 | /* | |
36 | * This is the structure written in the log at the head of | |
37 | * every transaction. It identifies the type and id of the | |
38 | * transaction, and contains the number of items logged by | |
39 | * the transaction so we know how many to expect during recovery. | |
40 | * | |
41 | * Do not change the below structure without redoing the code in | |
42 | * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans(). | |
43 | */ | |
44 | typedef struct xfs_trans_header { | |
45 | uint th_magic; /* magic number */ | |
46 | uint th_type; /* transaction type */ | |
47 | __int32_t th_tid; /* transaction id (unused) */ | |
48 | uint th_num_items; /* num items logged by trans */ | |
49 | } xfs_trans_header_t; | |
50 | ||
51 | #define XFS_TRANS_HEADER_MAGIC 0x5452414e /* TRAN */ | |
52 | ||
53 | /* | |
54 | * Log item types. | |
55 | */ | |
56 | #define XFS_LI_5_3_BUF 0x1234 /* v1 bufs, 1-block inode buffers */ | |
57 | #define XFS_LI_5_3_INODE 0x1235 /* 1-block inode buffers */ | |
58 | #define XFS_LI_EFI 0x1236 | |
59 | #define XFS_LI_EFD 0x1237 | |
60 | #define XFS_LI_IUNLINK 0x1238 | |
61 | #define XFS_LI_6_1_INODE 0x1239 /* 4K non-aligned inode bufs */ | |
62 | #define XFS_LI_6_1_BUF 0x123a /* v1, 4K inode buffers */ | |
63 | #define XFS_LI_INODE 0x123b /* aligned ino chunks, var-size ibufs */ | |
64 | #define XFS_LI_BUF 0x123c /* v2 bufs, variable sized inode bufs */ | |
65 | #define XFS_LI_DQUOT 0x123d | |
66 | #define XFS_LI_QUOTAOFF 0x123e | |
67 | ||
68 | /* | |
69 | * Transaction types. Used to distinguish types of buffers. | |
70 | */ | |
71 | #define XFS_TRANS_SETATTR_NOT_SIZE 1 | |
72 | #define XFS_TRANS_SETATTR_SIZE 2 | |
73 | #define XFS_TRANS_INACTIVE 3 | |
74 | #define XFS_TRANS_CREATE 4 | |
75 | #define XFS_TRANS_CREATE_TRUNC 5 | |
76 | #define XFS_TRANS_TRUNCATE_FILE 6 | |
77 | #define XFS_TRANS_REMOVE 7 | |
78 | #define XFS_TRANS_LINK 8 | |
79 | #define XFS_TRANS_RENAME 9 | |
80 | #define XFS_TRANS_MKDIR 10 | |
81 | #define XFS_TRANS_RMDIR 11 | |
82 | #define XFS_TRANS_SYMLINK 12 | |
83 | #define XFS_TRANS_SET_DMATTRS 13 | |
84 | #define XFS_TRANS_GROWFS 14 | |
85 | #define XFS_TRANS_STRAT_WRITE 15 | |
86 | #define XFS_TRANS_DIOSTRAT 16 | |
87 | #define XFS_TRANS_WRITE_SYNC 17 | |
88 | #define XFS_TRANS_WRITEID 18 | |
89 | #define XFS_TRANS_ADDAFORK 19 | |
90 | #define XFS_TRANS_ATTRINVAL 20 | |
91 | #define XFS_TRANS_ATRUNCATE 21 | |
92 | #define XFS_TRANS_ATTR_SET 22 | |
93 | #define XFS_TRANS_ATTR_RM 23 | |
94 | #define XFS_TRANS_ATTR_FLAG 24 | |
95 | #define XFS_TRANS_CLEAR_AGI_BUCKET 25 | |
96 | #define XFS_TRANS_QM_SBCHANGE 26 | |
97 | /* | |
98 | * Dummy entries since we use the transaction type to index into the | |
99 | * trans_type[] in xlog_recover_print_trans_head() | |
100 | */ | |
101 | #define XFS_TRANS_DUMMY1 27 | |
102 | #define XFS_TRANS_DUMMY2 28 | |
103 | #define XFS_TRANS_QM_QUOTAOFF 29 | |
104 | #define XFS_TRANS_QM_DQALLOC 30 | |
105 | #define XFS_TRANS_QM_SETQLIM 31 | |
106 | #define XFS_TRANS_QM_DQCLUSTER 32 | |
107 | #define XFS_TRANS_QM_QINOCREATE 33 | |
108 | #define XFS_TRANS_QM_QUOTAOFF_END 34 | |
109 | #define XFS_TRANS_SB_UNIT 35 | |
110 | #define XFS_TRANS_FSYNC_TS 36 | |
111 | #define XFS_TRANS_GROWFSRT_ALLOC 37 | |
112 | #define XFS_TRANS_GROWFSRT_ZERO 38 | |
113 | #define XFS_TRANS_GROWFSRT_FREE 39 | |
114 | #define XFS_TRANS_SWAPEXT 40 | |
7e9c6396 | 115 | #define XFS_TRANS_TYPE_MAX 40 |
1da177e4 LT |
116 | /* new transaction types need to be reflected in xfs_logprint(8) */ |
117 | ||
118 | ||
119 | #ifdef __KERNEL__ | |
120 | struct xfs_buf; | |
121 | struct xfs_buftarg; | |
122 | struct xfs_efd_log_item; | |
123 | struct xfs_efi_log_item; | |
124 | struct xfs_inode; | |
125 | struct xfs_item_ops; | |
126 | struct xfs_log_iovec; | |
127 | struct xfs_log_item; | |
128 | struct xfs_log_item_desc; | |
129 | struct xfs_mount; | |
130 | struct xfs_trans; | |
131 | struct xfs_dquot_acct; | |
132 | ||
133 | typedef struct xfs_ail_entry { | |
134 | struct xfs_log_item *ail_forw; /* AIL forw pointer */ | |
135 | struct xfs_log_item *ail_back; /* AIL back pointer */ | |
136 | } xfs_ail_entry_t; | |
137 | ||
138 | /* | |
139 | * This structure is passed as a parameter to xfs_trans_push_ail() | |
140 | * and is used to track the what LSN the waiting processes are | |
141 | * waiting to become unused. | |
142 | */ | |
143 | typedef struct xfs_ail_ticket { | |
144 | xfs_lsn_t at_lsn; /* lsn waitin for */ | |
145 | struct xfs_ail_ticket *at_forw; /* wait list ptr */ | |
146 | struct xfs_ail_ticket *at_back; /* wait list ptr */ | |
147 | sv_t at_sema; /* wait sema */ | |
148 | } xfs_ail_ticket_t; | |
149 | ||
150 | ||
151 | typedef struct xfs_log_item { | |
152 | xfs_ail_entry_t li_ail; /* AIL pointers */ | |
153 | xfs_lsn_t li_lsn; /* last on-disk lsn */ | |
154 | struct xfs_log_item_desc *li_desc; /* ptr to current desc*/ | |
155 | struct xfs_mount *li_mountp; /* ptr to fs mount */ | |
156 | uint li_type; /* item type */ | |
157 | uint li_flags; /* misc flags */ | |
158 | struct xfs_log_item *li_bio_list; /* buffer item list */ | |
159 | void (*li_cb)(struct xfs_buf *, | |
160 | struct xfs_log_item *); | |
161 | /* buffer item iodone */ | |
162 | /* callback func */ | |
163 | struct xfs_item_ops *li_ops; /* function list */ | |
164 | } xfs_log_item_t; | |
165 | ||
166 | #define XFS_LI_IN_AIL 0x1 | |
167 | #define XFS_LI_ABORTED 0x2 | |
168 | ||
169 | typedef struct xfs_item_ops { | |
170 | uint (*iop_size)(xfs_log_item_t *); | |
171 | void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *); | |
172 | void (*iop_pin)(xfs_log_item_t *); | |
173 | void (*iop_unpin)(xfs_log_item_t *, int); | |
174 | void (*iop_unpin_remove)(xfs_log_item_t *, struct xfs_trans *); | |
175 | uint (*iop_trylock)(xfs_log_item_t *); | |
176 | void (*iop_unlock)(xfs_log_item_t *); | |
177 | xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t); | |
178 | void (*iop_push)(xfs_log_item_t *); | |
179 | void (*iop_abort)(xfs_log_item_t *); | |
180 | void (*iop_pushbuf)(xfs_log_item_t *); | |
181 | void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t); | |
182 | } xfs_item_ops_t; | |
183 | ||
184 | #define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip) | |
185 | #define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp) | |
186 | #define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip) | |
187 | #define IOP_UNPIN(ip, flags) (*(ip)->li_ops->iop_unpin)(ip, flags) | |
188 | #define IOP_UNPIN_REMOVE(ip,tp) (*(ip)->li_ops->iop_unpin_remove)(ip, tp) | |
189 | #define IOP_TRYLOCK(ip) (*(ip)->li_ops->iop_trylock)(ip) | |
190 | #define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip) | |
191 | #define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn) | |
192 | #define IOP_PUSH(ip) (*(ip)->li_ops->iop_push)(ip) | |
193 | #define IOP_ABORT(ip) (*(ip)->li_ops->iop_abort)(ip) | |
194 | #define IOP_PUSHBUF(ip) (*(ip)->li_ops->iop_pushbuf)(ip) | |
195 | #define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn) | |
196 | ||
197 | /* | |
198 | * Return values for the IOP_TRYLOCK() routines. | |
199 | */ | |
200 | #define XFS_ITEM_SUCCESS 0 | |
201 | #define XFS_ITEM_PINNED 1 | |
202 | #define XFS_ITEM_LOCKED 2 | |
203 | #define XFS_ITEM_FLUSHING 3 | |
204 | #define XFS_ITEM_PUSHBUF 4 | |
205 | ||
206 | #endif /* __KERNEL__ */ | |
207 | ||
208 | /* | |
209 | * This structure is used to track log items associated with | |
210 | * a transaction. It points to the log item and keeps some | |
211 | * flags to track the state of the log item. It also tracks | |
212 | * the amount of space needed to log the item it describes | |
213 | * once we get to commit processing (see xfs_trans_commit()). | |
214 | */ | |
215 | typedef struct xfs_log_item_desc { | |
216 | xfs_log_item_t *lid_item; | |
217 | ushort lid_size; | |
218 | unsigned char lid_flags; | |
219 | unsigned char lid_index; | |
220 | } xfs_log_item_desc_t; | |
221 | ||
222 | #define XFS_LID_DIRTY 0x1 | |
223 | #define XFS_LID_PINNED 0x2 | |
224 | #define XFS_LID_BUF_STALE 0x8 | |
225 | ||
226 | /* | |
227 | * This structure is used to maintain a chunk list of log_item_desc | |
228 | * structures. The free field is a bitmask indicating which descriptors | |
229 | * in this chunk's array are free. The unused field is the first value | |
230 | * not used since this chunk was allocated. | |
231 | */ | |
232 | #define XFS_LIC_NUM_SLOTS 15 | |
233 | typedef struct xfs_log_item_chunk { | |
234 | struct xfs_log_item_chunk *lic_next; | |
235 | ushort lic_free; | |
236 | ushort lic_unused; | |
237 | xfs_log_item_desc_t lic_descs[XFS_LIC_NUM_SLOTS]; | |
238 | } xfs_log_item_chunk_t; | |
239 | ||
240 | #define XFS_LIC_MAX_SLOT (XFS_LIC_NUM_SLOTS - 1) | |
241 | #define XFS_LIC_FREEMASK ((1 << XFS_LIC_NUM_SLOTS) - 1) | |
242 | ||
243 | ||
244 | /* | |
245 | * Initialize the given chunk. Set the chunk's free descriptor mask | |
246 | * to indicate that all descriptors are free. The caller gets to set | |
247 | * lic_unused to the right value (0 matches all free). The | |
248 | * lic_descs.lid_index values are set up as each desc is allocated. | |
249 | */ | |
250 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_INIT) | |
251 | void xfs_lic_init(xfs_log_item_chunk_t *cp); | |
252 | #define XFS_LIC_INIT(cp) xfs_lic_init(cp) | |
253 | #else | |
254 | #define XFS_LIC_INIT(cp) ((cp)->lic_free = XFS_LIC_FREEMASK) | |
255 | #endif | |
256 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_INIT_SLOT) | |
257 | void xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot); | |
258 | #define XFS_LIC_INIT_SLOT(cp,slot) xfs_lic_init_slot(cp, slot) | |
259 | #else | |
260 | #define XFS_LIC_INIT_SLOT(cp,slot) \ | |
261 | ((cp)->lic_descs[slot].lid_index = (unsigned char)(slot)) | |
262 | #endif | |
263 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_VACANCY) | |
264 | int xfs_lic_vacancy(xfs_log_item_chunk_t *cp); | |
265 | #define XFS_LIC_VACANCY(cp) xfs_lic_vacancy(cp) | |
266 | #else | |
267 | #define XFS_LIC_VACANCY(cp) (((cp)->lic_free) & XFS_LIC_FREEMASK) | |
268 | #endif | |
269 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_ALL_FREE) | |
270 | void xfs_lic_all_free(xfs_log_item_chunk_t *cp); | |
271 | #define XFS_LIC_ALL_FREE(cp) xfs_lic_all_free(cp) | |
272 | #else | |
273 | #define XFS_LIC_ALL_FREE(cp) ((cp)->lic_free = XFS_LIC_FREEMASK) | |
274 | #endif | |
275 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_ARE_ALL_FREE) | |
276 | int xfs_lic_are_all_free(xfs_log_item_chunk_t *cp); | |
277 | #define XFS_LIC_ARE_ALL_FREE(cp) xfs_lic_are_all_free(cp) | |
278 | #else | |
279 | #define XFS_LIC_ARE_ALL_FREE(cp) (((cp)->lic_free & XFS_LIC_FREEMASK) ==\ | |
280 | XFS_LIC_FREEMASK) | |
281 | #endif | |
282 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_ISFREE) | |
283 | int xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot); | |
284 | #define XFS_LIC_ISFREE(cp,slot) xfs_lic_isfree(cp,slot) | |
285 | #else | |
286 | #define XFS_LIC_ISFREE(cp,slot) ((cp)->lic_free & (1 << (slot))) | |
287 | #endif | |
288 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_CLAIM) | |
289 | void xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot); | |
290 | #define XFS_LIC_CLAIM(cp,slot) xfs_lic_claim(cp,slot) | |
291 | #else | |
292 | #define XFS_LIC_CLAIM(cp,slot) ((cp)->lic_free &= ~(1 << (slot))) | |
293 | #endif | |
294 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_RELSE) | |
295 | void xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot); | |
296 | #define XFS_LIC_RELSE(cp,slot) xfs_lic_relse(cp,slot) | |
297 | #else | |
298 | #define XFS_LIC_RELSE(cp,slot) ((cp)->lic_free |= 1 << (slot)) | |
299 | #endif | |
300 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_SLOT) | |
301 | xfs_log_item_desc_t *xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot); | |
302 | #define XFS_LIC_SLOT(cp,slot) xfs_lic_slot(cp,slot) | |
303 | #else | |
304 | #define XFS_LIC_SLOT(cp,slot) (&((cp)->lic_descs[slot])) | |
305 | #endif | |
306 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_DESC_TO_SLOT) | |
307 | int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp); | |
308 | #define XFS_LIC_DESC_TO_SLOT(dp) xfs_lic_desc_to_slot(dp) | |
309 | #else | |
310 | #define XFS_LIC_DESC_TO_SLOT(dp) ((uint)((dp)->lid_index)) | |
311 | #endif | |
312 | /* | |
313 | * Calculate the address of a chunk given a descriptor pointer: | |
314 | * dp - dp->lid_index give the address of the start of the lic_descs array. | |
315 | * From this we subtract the offset of the lic_descs field in a chunk. | |
316 | * All of this yields the address of the chunk, which is | |
317 | * cast to a chunk pointer. | |
318 | */ | |
319 | #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_LIC_DESC_TO_CHUNK) | |
320 | xfs_log_item_chunk_t *xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp); | |
321 | #define XFS_LIC_DESC_TO_CHUNK(dp) xfs_lic_desc_to_chunk(dp) | |
322 | #else | |
323 | #define XFS_LIC_DESC_TO_CHUNK(dp) ((xfs_log_item_chunk_t*) \ | |
324 | (((xfs_caddr_t)((dp) - (dp)->lid_index)) -\ | |
325 | (xfs_caddr_t)(((xfs_log_item_chunk_t*) \ | |
326 | 0)->lic_descs))) | |
327 | #endif | |
328 | ||
329 | #ifdef __KERNEL__ | |
330 | /* | |
331 | * This structure is used to maintain a list of block ranges that have been | |
332 | * freed in the transaction. The ranges are listed in the perag[] busy list | |
333 | * between when they're freed and the transaction is committed to disk. | |
334 | */ | |
335 | ||
336 | typedef struct xfs_log_busy_slot { | |
337 | xfs_agnumber_t lbc_ag; | |
338 | ushort lbc_idx; /* index in perag.busy[] */ | |
339 | } xfs_log_busy_slot_t; | |
340 | ||
341 | #define XFS_LBC_NUM_SLOTS 31 | |
342 | typedef struct xfs_log_busy_chunk { | |
343 | struct xfs_log_busy_chunk *lbc_next; | |
344 | uint lbc_free; /* bitmask of free slots */ | |
345 | ushort lbc_unused; /* first unused */ | |
346 | xfs_log_busy_slot_t lbc_busy[XFS_LBC_NUM_SLOTS]; | |
347 | } xfs_log_busy_chunk_t; | |
348 | ||
349 | #define XFS_LBC_MAX_SLOT (XFS_LBC_NUM_SLOTS - 1) | |
350 | #define XFS_LBC_FREEMASK ((1U << XFS_LBC_NUM_SLOTS) - 1) | |
351 | ||
352 | #define XFS_LBC_INIT(cp) ((cp)->lbc_free = XFS_LBC_FREEMASK) | |
353 | #define XFS_LBC_CLAIM(cp, slot) ((cp)->lbc_free &= ~(1 << (slot))) | |
354 | #define XFS_LBC_SLOT(cp, slot) (&((cp)->lbc_busy[(slot)])) | |
355 | #define XFS_LBC_VACANCY(cp) (((cp)->lbc_free) & XFS_LBC_FREEMASK) | |
356 | #define XFS_LBC_ISFREE(cp, slot) ((cp)->lbc_free & (1 << (slot))) | |
357 | ||
358 | /* | |
359 | * This is the type of function which can be given to xfs_trans_callback() | |
360 | * to be called upon the transaction's commit to disk. | |
361 | */ | |
362 | typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *); | |
363 | ||
364 | /* | |
365 | * This is the structure maintained for every active transaction. | |
366 | */ | |
367 | typedef struct xfs_trans { | |
368 | unsigned int t_magic; /* magic number */ | |
369 | xfs_log_callback_t t_logcb; /* log callback struct */ | |
370 | struct xfs_trans *t_forw; /* async list pointers */ | |
371 | struct xfs_trans *t_back; /* async list pointers */ | |
372 | unsigned int t_type; /* transaction type */ | |
373 | unsigned int t_log_res; /* amt of log space resvd */ | |
374 | unsigned int t_log_count; /* count for perm log res */ | |
375 | unsigned int t_blk_res; /* # of blocks resvd */ | |
376 | unsigned int t_blk_res_used; /* # of resvd blocks used */ | |
377 | unsigned int t_rtx_res; /* # of rt extents resvd */ | |
378 | unsigned int t_rtx_res_used; /* # of resvd rt extents used */ | |
379 | xfs_log_ticket_t t_ticket; /* log mgr ticket */ | |
380 | sema_t t_sema; /* sema for commit completion */ | |
381 | xfs_lsn_t t_lsn; /* log seq num of start of | |
382 | * transaction. */ | |
383 | xfs_lsn_t t_commit_lsn; /* log seq num of end of | |
384 | * transaction. */ | |
385 | struct xfs_mount *t_mountp; /* ptr to fs mount struct */ | |
386 | struct xfs_dquot_acct *t_dqinfo; /* accting info for dquots */ | |
387 | xfs_trans_callback_t t_callback; /* transaction callback */ | |
388 | void *t_callarg; /* callback arg */ | |
389 | unsigned int t_flags; /* misc flags */ | |
390 | long t_icount_delta; /* superblock icount change */ | |
391 | long t_ifree_delta; /* superblock ifree change */ | |
392 | long t_fdblocks_delta; /* superblock fdblocks chg */ | |
393 | long t_res_fdblocks_delta; /* on-disk only chg */ | |
394 | long t_frextents_delta;/* superblock freextents chg*/ | |
395 | long t_res_frextents_delta; /* on-disk only chg */ | |
396 | long t_ag_freeblks_delta; /* debugging counter */ | |
397 | long t_ag_flist_delta; /* debugging counter */ | |
398 | long t_ag_btree_delta; /* debugging counter */ | |
399 | long t_dblocks_delta;/* superblock dblocks change */ | |
400 | long t_agcount_delta;/* superblock agcount change */ | |
401 | long t_imaxpct_delta;/* superblock imaxpct change */ | |
402 | long t_rextsize_delta;/* superblock rextsize chg */ | |
403 | long t_rbmblocks_delta;/* superblock rbmblocks chg */ | |
404 | long t_rblocks_delta;/* superblock rblocks change */ | |
405 | long t_rextents_delta;/* superblocks rextents chg */ | |
406 | long t_rextslog_delta;/* superblocks rextslog chg */ | |
407 | unsigned int t_items_free; /* log item descs free */ | |
408 | xfs_log_item_chunk_t t_items; /* first log item desc chunk */ | |
409 | xfs_trans_header_t t_header; /* header for in-log trans */ | |
410 | unsigned int t_busy_free; /* busy descs free */ | |
411 | xfs_log_busy_chunk_t t_busy; /* busy/async free blocks */ | |
412 | xfs_pflags_t t_pflags; /* saved pflags state */ | |
413 | } xfs_trans_t; | |
414 | ||
415 | #endif /* __KERNEL__ */ | |
416 | ||
417 | ||
418 | #define XFS_TRANS_MAGIC 0x5452414E /* 'TRAN' */ | |
419 | /* | |
420 | * Values for t_flags. | |
421 | */ | |
422 | #define XFS_TRANS_DIRTY 0x01 /* something needs to be logged */ | |
423 | #define XFS_TRANS_SB_DIRTY 0x02 /* superblock is modified */ | |
424 | #define XFS_TRANS_PERM_LOG_RES 0x04 /* xact took a permanent log res */ | |
425 | #define XFS_TRANS_SYNC 0x08 /* make commit synchronous */ | |
426 | #define XFS_TRANS_DQ_DIRTY 0x10 /* at least one dquot in trx dirty */ | |
427 | #define XFS_TRANS_RESERVE 0x20 /* OK to use reserved data blocks */ | |
428 | ||
429 | /* | |
430 | * Values for call flags parameter. | |
431 | */ | |
432 | #define XFS_TRANS_NOSLEEP 0x1 | |
433 | #define XFS_TRANS_WAIT 0x2 | |
434 | #define XFS_TRANS_RELEASE_LOG_RES 0x4 | |
435 | #define XFS_TRANS_ABORT 0x8 | |
436 | ||
437 | /* | |
438 | * Field values for xfs_trans_mod_sb. | |
439 | */ | |
440 | #define XFS_TRANS_SB_ICOUNT 0x00000001 | |
441 | #define XFS_TRANS_SB_IFREE 0x00000002 | |
442 | #define XFS_TRANS_SB_FDBLOCKS 0x00000004 | |
443 | #define XFS_TRANS_SB_RES_FDBLOCKS 0x00000008 | |
444 | #define XFS_TRANS_SB_FREXTENTS 0x00000010 | |
445 | #define XFS_TRANS_SB_RES_FREXTENTS 0x00000020 | |
446 | #define XFS_TRANS_SB_DBLOCKS 0x00000040 | |
447 | #define XFS_TRANS_SB_AGCOUNT 0x00000080 | |
448 | #define XFS_TRANS_SB_IMAXPCT 0x00000100 | |
449 | #define XFS_TRANS_SB_REXTSIZE 0x00000200 | |
450 | #define XFS_TRANS_SB_RBMBLOCKS 0x00000400 | |
451 | #define XFS_TRANS_SB_RBLOCKS 0x00000800 | |
452 | #define XFS_TRANS_SB_REXTENTS 0x00001000 | |
453 | #define XFS_TRANS_SB_REXTSLOG 0x00002000 | |
454 | ||
455 | ||
456 | /* | |
457 | * Various log reservation values. | |
458 | * These are based on the size of the file system block | |
459 | * because that is what most transactions manipulate. | |
460 | * Each adds in an additional 128 bytes per item logged to | |
461 | * try to account for the overhead of the transaction mechanism. | |
462 | * | |
463 | * Note: | |
464 | * Most of the reservations underestimate the number of allocation | |
465 | * groups into which they could free extents in the xfs_bmap_finish() | |
466 | * call. This is because the number in the worst case is quite high | |
467 | * and quite unusual. In order to fix this we need to change | |
468 | * xfs_bmap_finish() to free extents in only a single AG at a time. | |
469 | * This will require changes to the EFI code as well, however, so that | |
470 | * the EFI for the extents not freed is logged again in each transaction. | |
471 | * See bug 261917. | |
472 | */ | |
473 | ||
474 | /* | |
475 | * Per-extent log reservation for the allocation btree changes | |
476 | * involved in freeing or allocating an extent. | |
477 | * 2 trees * (2 blocks/level * max depth - 1) * block size | |
478 | */ | |
479 | #define XFS_ALLOCFREE_LOG_RES(mp,nx) \ | |
480 | ((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1))) | |
481 | #define XFS_ALLOCFREE_LOG_COUNT(mp,nx) \ | |
482 | ((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1))) | |
483 | ||
484 | /* | |
485 | * Per-directory log reservation for any directory change. | |
486 | * dir blocks: (1 btree block per level + data block + free block) * dblock size | |
487 | * bmap btree: (levels + 2) * max depth * block size | |
488 | * v2 directory blocks can be fragmented below the dirblksize down to the fsb | |
489 | * size, so account for that in the DAENTER macros. | |
490 | */ | |
491 | #define XFS_DIROP_LOG_RES(mp) \ | |
492 | (XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \ | |
493 | (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1))) | |
494 | #define XFS_DIROP_LOG_COUNT(mp) \ | |
495 | (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \ | |
496 | XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1) | |
497 | ||
498 | /* | |
499 | * In a write transaction we can allocate a maximum of 2 | |
500 | * extents. This gives: | |
501 | * the inode getting the new extents: inode size | |
502 | * the inode\'s bmap btree: max depth * block size | |
503 | * the agfs of the ags from which the extents are allocated: 2 * sector | |
504 | * the superblock free block counter: sector size | |
505 | * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size | |
506 | * And the bmap_finish transaction can free bmap blocks in a join: | |
507 | * the agfs of the ags containing the blocks: 2 * sector size | |
508 | * the agfls of the ags containing the blocks: 2 * sector size | |
509 | * the super block free block counter: sector size | |
510 | * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size | |
511 | */ | |
512 | #define XFS_CALC_WRITE_LOG_RES(mp) \ | |
513 | (MAX( \ | |
514 | ((mp)->m_sb.sb_inodesize + \ | |
515 | XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \ | |
516 | (2 * (mp)->m_sb.sb_sectsize) + \ | |
517 | (mp)->m_sb.sb_sectsize + \ | |
518 | XFS_ALLOCFREE_LOG_RES(mp, 2) + \ | |
519 | (128 * (4 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))),\ | |
520 | ((2 * (mp)->m_sb.sb_sectsize) + \ | |
521 | (2 * (mp)->m_sb.sb_sectsize) + \ | |
522 | (mp)->m_sb.sb_sectsize + \ | |
523 | XFS_ALLOCFREE_LOG_RES(mp, 2) + \ | |
524 | (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))))) | |
525 | ||
526 | #define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write) | |
527 | ||
528 | /* | |
529 | * In truncating a file we free up to two extents at once. We can modify: | |
530 | * the inode being truncated: inode size | |
531 | * the inode\'s bmap btree: (max depth + 1) * block size | |
532 | * And the bmap_finish transaction can free the blocks and bmap blocks: | |
533 | * the agf for each of the ags: 4 * sector size | |
534 | * the agfl for each of the ags: 4 * sector size | |
535 | * the super block to reflect the freed blocks: sector size | |
536 | * worst case split in allocation btrees per extent assuming 4 extents: | |
537 | * 4 exts * 2 trees * (2 * max depth - 1) * block size | |
538 | * the inode btree: max depth * blocksize | |
539 | * the allocation btrees: 2 trees * (max depth - 1) * block size | |
540 | */ | |
541 | #define XFS_CALC_ITRUNCATE_LOG_RES(mp) \ | |
542 | (MAX( \ | |
543 | ((mp)->m_sb.sb_inodesize + \ | |
544 | XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + 1) + \ | |
545 | (128 * (2 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \ | |
546 | ((4 * (mp)->m_sb.sb_sectsize) + \ | |
547 | (4 * (mp)->m_sb.sb_sectsize) + \ | |
548 | (mp)->m_sb.sb_sectsize + \ | |
549 | XFS_ALLOCFREE_LOG_RES(mp, 4) + \ | |
550 | (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))) + \ | |
551 | (128 * 5) + \ | |
552 | XFS_ALLOCFREE_LOG_RES(mp, 1) + \ | |
553 | (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \ | |
554 | XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) | |
555 | ||
556 | #define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate) | |
557 | ||
558 | /* | |
559 | * In renaming a files we can modify: | |
560 | * the four inodes involved: 4 * inode size | |
561 | * the two directory btrees: 2 * (max depth + v2) * dir block size | |
562 | * the two directory bmap btrees: 2 * max depth * block size | |
563 | * And the bmap_finish transaction can free dir and bmap blocks (two sets | |
564 | * of bmap blocks) giving: | |
565 | * the agf for the ags in which the blocks live: 3 * sector size | |
566 | * the agfl for the ags in which the blocks live: 3 * sector size | |
567 | * the superblock for the free block count: sector size | |
568 | * the allocation btrees: 3 exts * 2 trees * (2 * max depth - 1) * block size | |
569 | */ | |
570 | #define XFS_CALC_RENAME_LOG_RES(mp) \ | |
571 | (MAX( \ | |
572 | ((4 * (mp)->m_sb.sb_inodesize) + \ | |
573 | (2 * XFS_DIROP_LOG_RES(mp)) + \ | |
574 | (128 * (4 + 2 * XFS_DIROP_LOG_COUNT(mp)))), \ | |
575 | ((3 * (mp)->m_sb.sb_sectsize) + \ | |
576 | (3 * (mp)->m_sb.sb_sectsize) + \ | |
577 | (mp)->m_sb.sb_sectsize + \ | |
578 | XFS_ALLOCFREE_LOG_RES(mp, 3) + \ | |
579 | (128 * (7 + XFS_ALLOCFREE_LOG_COUNT(mp, 3)))))) | |
580 | ||
581 | #define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename) | |
582 | ||
583 | /* | |
584 | * For creating a link to an inode: | |
585 | * the parent directory inode: inode size | |
586 | * the linked inode: inode size | |
587 | * the directory btree could split: (max depth + v2) * dir block size | |
588 | * the directory bmap btree could join or split: (max depth + v2) * blocksize | |
589 | * And the bmap_finish transaction can free some bmap blocks giving: | |
590 | * the agf for the ag in which the blocks live: sector size | |
591 | * the agfl for the ag in which the blocks live: sector size | |
592 | * the superblock for the free block count: sector size | |
593 | * the allocation btrees: 2 trees * (2 * max depth - 1) * block size | |
594 | */ | |
595 | #define XFS_CALC_LINK_LOG_RES(mp) \ | |
596 | (MAX( \ | |
597 | ((mp)->m_sb.sb_inodesize + \ | |
598 | (mp)->m_sb.sb_inodesize + \ | |
599 | XFS_DIROP_LOG_RES(mp) + \ | |
600 | (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \ | |
601 | ((mp)->m_sb.sb_sectsize + \ | |
602 | (mp)->m_sb.sb_sectsize + \ | |
603 | (mp)->m_sb.sb_sectsize + \ | |
604 | XFS_ALLOCFREE_LOG_RES(mp, 1) + \ | |
605 | (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) | |
606 | ||
607 | #define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link) | |
608 | ||
609 | /* | |
610 | * For removing a directory entry we can modify: | |
611 | * the parent directory inode: inode size | |
612 | * the removed inode: inode size | |
613 | * the directory btree could join: (max depth + v2) * dir block size | |
614 | * the directory bmap btree could join or split: (max depth + v2) * blocksize | |
615 | * And the bmap_finish transaction can free the dir and bmap blocks giving: | |
616 | * the agf for the ag in which the blocks live: 2 * sector size | |
617 | * the agfl for the ag in which the blocks live: 2 * sector size | |
618 | * the superblock for the free block count: sector size | |
619 | * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size | |
620 | */ | |
621 | #define XFS_CALC_REMOVE_LOG_RES(mp) \ | |
622 | (MAX( \ | |
623 | ((mp)->m_sb.sb_inodesize + \ | |
624 | (mp)->m_sb.sb_inodesize + \ | |
625 | XFS_DIROP_LOG_RES(mp) + \ | |
626 | (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \ | |
627 | ((2 * (mp)->m_sb.sb_sectsize) + \ | |
628 | (2 * (mp)->m_sb.sb_sectsize) + \ | |
629 | (mp)->m_sb.sb_sectsize + \ | |
630 | XFS_ALLOCFREE_LOG_RES(mp, 2) + \ | |
631 | (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))))) | |
632 | ||
633 | #define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove) | |
634 | ||
635 | /* | |
636 | * For symlink we can modify: | |
637 | * the parent directory inode: inode size | |
638 | * the new inode: inode size | |
639 | * the inode btree entry: 1 block | |
640 | * the directory btree: (max depth + v2) * dir block size | |
641 | * the directory inode\'s bmap btree: (max depth + v2) * block size | |
642 | * the blocks for the symlink: 1 KB | |
643 | * Or in the first xact we allocate some inodes giving: | |
644 | * the agi and agf of the ag getting the new inodes: 2 * sectorsize | |
645 | * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize | |
646 | * the inode btree: max depth * blocksize | |
647 | * the allocation btrees: 2 trees * (2 * max depth - 1) * block size | |
648 | */ | |
649 | #define XFS_CALC_SYMLINK_LOG_RES(mp) \ | |
650 | (MAX( \ | |
651 | ((mp)->m_sb.sb_inodesize + \ | |
652 | (mp)->m_sb.sb_inodesize + \ | |
653 | XFS_FSB_TO_B(mp, 1) + \ | |
654 | XFS_DIROP_LOG_RES(mp) + \ | |
655 | 1024 + \ | |
656 | (128 * (4 + XFS_DIROP_LOG_COUNT(mp)))), \ | |
657 | (2 * (mp)->m_sb.sb_sectsize + \ | |
658 | XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \ | |
659 | XFS_FSB_TO_B((mp), XFS_IN_MAXLEVELS(mp)) + \ | |
660 | XFS_ALLOCFREE_LOG_RES(mp, 1) + \ | |
661 | (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \ | |
662 | XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) | |
663 | ||
664 | #define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink) | |
665 | ||
666 | /* | |
667 | * For create we can modify: | |
668 | * the parent directory inode: inode size | |
669 | * the new inode: inode size | |
670 | * the inode btree entry: block size | |
671 | * the superblock for the nlink flag: sector size | |
672 | * the directory btree: (max depth + v2) * dir block size | |
673 | * the directory inode\'s bmap btree: (max depth + v2) * block size | |
674 | * Or in the first xact we allocate some inodes giving: | |
675 | * the agi and agf of the ag getting the new inodes: 2 * sectorsize | |
676 | * the superblock for the nlink flag: sector size | |
677 | * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize | |
678 | * the inode btree: max depth * blocksize | |
679 | * the allocation btrees: 2 trees * (max depth - 1) * block size | |
680 | */ | |
681 | #define XFS_CALC_CREATE_LOG_RES(mp) \ | |
682 | (MAX( \ | |
683 | ((mp)->m_sb.sb_inodesize + \ | |
684 | (mp)->m_sb.sb_inodesize + \ | |
685 | (mp)->m_sb.sb_sectsize + \ | |
686 | XFS_FSB_TO_B(mp, 1) + \ | |
687 | XFS_DIROP_LOG_RES(mp) + \ | |
688 | (128 * (3 + XFS_DIROP_LOG_COUNT(mp)))), \ | |
689 | (3 * (mp)->m_sb.sb_sectsize + \ | |
690 | XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \ | |
691 | XFS_FSB_TO_B((mp), XFS_IN_MAXLEVELS(mp)) + \ | |
692 | XFS_ALLOCFREE_LOG_RES(mp, 1) + \ | |
693 | (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \ | |
694 | XFS_ALLOCFREE_LOG_COUNT(mp, 1)))))) | |
695 | ||
696 | #define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create) | |
697 | ||
698 | /* | |
699 | * Making a new directory is the same as creating a new file. | |
700 | */ | |
701 | #define XFS_CALC_MKDIR_LOG_RES(mp) XFS_CALC_CREATE_LOG_RES(mp) | |
702 | ||
703 | #define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir) | |
704 | ||
705 | /* | |
706 | * In freeing an inode we can modify: | |
707 | * the inode being freed: inode size | |
708 | * the super block free inode counter: sector size | |
709 | * the agi hash list and counters: sector size | |
710 | * the inode btree entry: block size | |
711 | * the on disk inode before ours in the agi hash list: inode cluster size | |
712 | * the inode btree: max depth * blocksize | |
713 | * the allocation btrees: 2 trees * (max depth - 1) * block size | |
714 | */ | |
715 | #define XFS_CALC_IFREE_LOG_RES(mp) \ | |
716 | ((mp)->m_sb.sb_inodesize + \ | |
717 | (mp)->m_sb.sb_sectsize + \ | |
718 | (mp)->m_sb.sb_sectsize + \ | |
719 | XFS_FSB_TO_B((mp), 1) + \ | |
720 | MAX((__uint16_t)XFS_FSB_TO_B((mp), 1), XFS_INODE_CLUSTER_SIZE(mp)) + \ | |
721 | (128 * 5) + \ | |
722 | XFS_ALLOCFREE_LOG_RES(mp, 1) + \ | |
723 | (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \ | |
724 | XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) | |
725 | ||
726 | ||
727 | #define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree) | |
728 | ||
729 | /* | |
730 | * When only changing the inode we log the inode and possibly the superblock | |
731 | * We also add a bit of slop for the transaction stuff. | |
732 | */ | |
733 | #define XFS_CALC_ICHANGE_LOG_RES(mp) ((mp)->m_sb.sb_inodesize + \ | |
734 | (mp)->m_sb.sb_sectsize + 512) | |
735 | ||
736 | #define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange) | |
737 | ||
738 | /* | |
739 | * Growing the data section of the filesystem. | |
740 | * superblock | |
741 | * agi and agf | |
742 | * allocation btrees | |
743 | */ | |
744 | #define XFS_CALC_GROWDATA_LOG_RES(mp) \ | |
745 | ((mp)->m_sb.sb_sectsize * 3 + \ | |
746 | XFS_ALLOCFREE_LOG_RES(mp, 1) + \ | |
747 | (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) | |
748 | ||
749 | #define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata) | |
750 | ||
751 | /* | |
752 | * Growing the rt section of the filesystem. | |
753 | * In the first set of transactions (ALLOC) we allocate space to the | |
754 | * bitmap or summary files. | |
755 | * superblock: sector size | |
756 | * agf of the ag from which the extent is allocated: sector size | |
757 | * bmap btree for bitmap/summary inode: max depth * blocksize | |
758 | * bitmap/summary inode: inode size | |
759 | * allocation btrees for 1 block alloc: 2 * (2 * maxdepth - 1) * blocksize | |
760 | */ | |
761 | #define XFS_CALC_GROWRTALLOC_LOG_RES(mp) \ | |
762 | (2 * (mp)->m_sb.sb_sectsize + \ | |
763 | XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \ | |
764 | (mp)->m_sb.sb_inodesize + \ | |
765 | XFS_ALLOCFREE_LOG_RES(mp, 1) + \ | |
766 | (128 * \ | |
767 | (3 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + \ | |
768 | XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) | |
769 | ||
770 | #define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc) | |
771 | ||
772 | /* | |
773 | * Growing the rt section of the filesystem. | |
774 | * In the second set of transactions (ZERO) we zero the new metadata blocks. | |
775 | * one bitmap/summary block: blocksize | |
776 | */ | |
777 | #define XFS_CALC_GROWRTZERO_LOG_RES(mp) \ | |
778 | ((mp)->m_sb.sb_blocksize + 128) | |
779 | ||
780 | #define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero) | |
781 | ||
782 | /* | |
783 | * Growing the rt section of the filesystem. | |
784 | * In the third set of transactions (FREE) we update metadata without | |
785 | * allocating any new blocks. | |
786 | * superblock: sector size | |
787 | * bitmap inode: inode size | |
788 | * summary inode: inode size | |
789 | * one bitmap block: blocksize | |
790 | * summary blocks: new summary size | |
791 | */ | |
792 | #define XFS_CALC_GROWRTFREE_LOG_RES(mp) \ | |
793 | ((mp)->m_sb.sb_sectsize + \ | |
794 | 2 * (mp)->m_sb.sb_inodesize + \ | |
795 | (mp)->m_sb.sb_blocksize + \ | |
796 | (mp)->m_rsumsize + \ | |
797 | (128 * 5)) | |
798 | ||
799 | #define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree) | |
800 | ||
801 | /* | |
802 | * Logging the inode modification timestamp on a synchronous write. | |
803 | * inode | |
804 | */ | |
805 | #define XFS_CALC_SWRITE_LOG_RES(mp) \ | |
806 | ((mp)->m_sb.sb_inodesize + 128) | |
807 | ||
808 | #define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) | |
809 | ||
810 | /* | |
811 | * Logging the inode timestamps on an fsync -- same as SWRITE | |
812 | * as long as SWRITE logs the entire inode core | |
813 | */ | |
814 | #define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) | |
815 | ||
816 | /* | |
817 | * Logging the inode mode bits when writing a setuid/setgid file | |
818 | * inode | |
819 | */ | |
820 | #define XFS_CALC_WRITEID_LOG_RES(mp) \ | |
821 | ((mp)->m_sb.sb_inodesize + 128) | |
822 | ||
823 | #define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) | |
824 | ||
825 | /* | |
826 | * Converting the inode from non-attributed to attributed. | |
827 | * the inode being converted: inode size | |
828 | * agf block and superblock (for block allocation) | |
829 | * the new block (directory sized) | |
830 | * bmap blocks for the new directory block | |
831 | * allocation btrees | |
832 | */ | |
833 | #define XFS_CALC_ADDAFORK_LOG_RES(mp) \ | |
834 | ((mp)->m_sb.sb_inodesize + \ | |
835 | (mp)->m_sb.sb_sectsize * 2 + \ | |
836 | (mp)->m_dirblksize + \ | |
837 | (XFS_DIR_IS_V1(mp) ? 0 : \ | |
838 | XFS_FSB_TO_B(mp, (XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1))) + \ | |
839 | XFS_ALLOCFREE_LOG_RES(mp, 1) + \ | |
840 | (128 * (4 + \ | |
841 | (XFS_DIR_IS_V1(mp) ? 0 : \ | |
842 | XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1) + \ | |
843 | XFS_ALLOCFREE_LOG_COUNT(mp, 1)))) | |
844 | ||
845 | #define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork) | |
846 | ||
847 | /* | |
848 | * Removing the attribute fork of a file | |
849 | * the inode being truncated: inode size | |
850 | * the inode\'s bmap btree: max depth * block size | |
851 | * And the bmap_finish transaction can free the blocks and bmap blocks: | |
852 | * the agf for each of the ags: 4 * sector size | |
853 | * the agfl for each of the ags: 4 * sector size | |
854 | * the super block to reflect the freed blocks: sector size | |
855 | * worst case split in allocation btrees per extent assuming 4 extents: | |
856 | * 4 exts * 2 trees * (2 * max depth - 1) * block size | |
857 | */ | |
858 | #define XFS_CALC_ATTRINVAL_LOG_RES(mp) \ | |
859 | (MAX( \ | |
860 | ((mp)->m_sb.sb_inodesize + \ | |
861 | XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \ | |
862 | (128 * (1 + XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))), \ | |
863 | ((4 * (mp)->m_sb.sb_sectsize) + \ | |
864 | (4 * (mp)->m_sb.sb_sectsize) + \ | |
865 | (mp)->m_sb.sb_sectsize + \ | |
866 | XFS_ALLOCFREE_LOG_RES(mp, 4) + \ | |
867 | (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4)))))) | |
868 | ||
869 | #define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval) | |
870 | ||
871 | /* | |
872 | * Setting an attribute. | |
873 | * the inode getting the attribute | |
874 | * the superblock for allocations | |
875 | * the agfs extents are allocated from | |
876 | * the attribute btree * max depth | |
877 | * the inode allocation btree | |
878 | * Since attribute transaction space is dependent on the size of the attribute, | |
879 | * the calculation is done partially at mount time and partially at runtime. | |
880 | */ | |
881 | #define XFS_CALC_ATTRSET_LOG_RES(mp) \ | |
882 | ((mp)->m_sb.sb_inodesize + \ | |
883 | (mp)->m_sb.sb_sectsize + \ | |
884 | XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \ | |
885 | (128 * (2 + XFS_DA_NODE_MAXDEPTH))) | |
886 | ||
887 | #define XFS_ATTRSET_LOG_RES(mp, ext) \ | |
888 | ((mp)->m_reservations.tr_attrset + \ | |
889 | (ext * (mp)->m_sb.sb_sectsize) + \ | |
890 | (ext * XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))) + \ | |
891 | (128 * (ext + (ext * XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))))) | |
892 | ||
893 | /* | |
894 | * Removing an attribute. | |
895 | * the inode: inode size | |
896 | * the attribute btree could join: max depth * block size | |
897 | * the inode bmap btree could join or split: max depth * block size | |
898 | * And the bmap_finish transaction can free the attr blocks freed giving: | |
899 | * the agf for the ag in which the blocks live: 2 * sector size | |
900 | * the agfl for the ag in which the blocks live: 2 * sector size | |
901 | * the superblock for the free block count: sector size | |
902 | * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size | |
903 | */ | |
904 | #define XFS_CALC_ATTRRM_LOG_RES(mp) \ | |
905 | (MAX( \ | |
906 | ((mp)->m_sb.sb_inodesize + \ | |
907 | XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \ | |
908 | XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \ | |
909 | (128 * (1 + XFS_DA_NODE_MAXDEPTH + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \ | |
910 | ((2 * (mp)->m_sb.sb_sectsize) + \ | |
911 | (2 * (mp)->m_sb.sb_sectsize) + \ | |
912 | (mp)->m_sb.sb_sectsize + \ | |
913 | XFS_ALLOCFREE_LOG_RES(mp, 2) + \ | |
914 | (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))))) | |
915 | ||
916 | #define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm) | |
917 | ||
918 | /* | |
919 | * Clearing a bad agino number in an agi hash bucket. | |
920 | */ | |
921 | #define XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp) \ | |
922 | ((mp)->m_sb.sb_sectsize + 128) | |
923 | ||
924 | #define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi) | |
925 | ||
926 | ||
927 | /* | |
928 | * Various log count values. | |
929 | */ | |
930 | #define XFS_DEFAULT_LOG_COUNT 1 | |
931 | #define XFS_DEFAULT_PERM_LOG_COUNT 2 | |
932 | #define XFS_ITRUNCATE_LOG_COUNT 2 | |
933 | #define XFS_INACTIVE_LOG_COUNT 2 | |
934 | #define XFS_CREATE_LOG_COUNT 2 | |
935 | #define XFS_MKDIR_LOG_COUNT 3 | |
936 | #define XFS_SYMLINK_LOG_COUNT 3 | |
937 | #define XFS_REMOVE_LOG_COUNT 2 | |
938 | #define XFS_LINK_LOG_COUNT 2 | |
939 | #define XFS_RENAME_LOG_COUNT 2 | |
940 | #define XFS_WRITE_LOG_COUNT 2 | |
941 | #define XFS_ADDAFORK_LOG_COUNT 2 | |
942 | #define XFS_ATTRINVAL_LOG_COUNT 1 | |
943 | #define XFS_ATTRSET_LOG_COUNT 3 | |
944 | #define XFS_ATTRRM_LOG_COUNT 3 | |
945 | ||
946 | /* | |
947 | * Here we centralize the specification of XFS meta-data buffer | |
948 | * reference count values. This determine how hard the buffer | |
949 | * cache tries to hold onto the buffer. | |
950 | */ | |
951 | #define XFS_AGF_REF 4 | |
952 | #define XFS_AGI_REF 4 | |
953 | #define XFS_AGFL_REF 3 | |
954 | #define XFS_INO_BTREE_REF 3 | |
955 | #define XFS_ALLOC_BTREE_REF 2 | |
956 | #define XFS_BMAP_BTREE_REF 2 | |
957 | #define XFS_DIR_BTREE_REF 2 | |
958 | #define XFS_ATTR_BTREE_REF 1 | |
959 | #define XFS_INO_REF 1 | |
960 | #define XFS_DQUOT_REF 1 | |
961 | ||
962 | #ifdef __KERNEL__ | |
963 | /* | |
964 | * XFS transaction mechanism exported interfaces that are | |
965 | * actually macros. | |
966 | */ | |
967 | #define xfs_trans_get_log_res(tp) ((tp)->t_log_res) | |
968 | #define xfs_trans_get_log_count(tp) ((tp)->t_log_count) | |
969 | #define xfs_trans_get_block_res(tp) ((tp)->t_blk_res) | |
970 | #define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC) | |
971 | ||
972 | #ifdef DEBUG | |
973 | #define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (long)d) | |
974 | #define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (long)d) | |
975 | #define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (long)d) | |
976 | #else | |
977 | #define xfs_trans_agblocks_delta(tp, d) | |
978 | #define xfs_trans_agflist_delta(tp, d) | |
979 | #define xfs_trans_agbtree_delta(tp, d) | |
980 | #endif | |
981 | ||
982 | /* | |
983 | * XFS transaction mechanism exported interfaces. | |
984 | */ | |
985 | void xfs_trans_init(struct xfs_mount *); | |
986 | xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint); | |
987 | xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint); | |
988 | xfs_trans_t *xfs_trans_dup(xfs_trans_t *); | |
989 | int xfs_trans_reserve(xfs_trans_t *, uint, uint, uint, | |
990 | uint, uint); | |
1da177e4 LT |
991 | void xfs_trans_mod_sb(xfs_trans_t *, uint, long); |
992 | struct xfs_buf *xfs_trans_get_buf(xfs_trans_t *, struct xfs_buftarg *, xfs_daddr_t, | |
993 | int, uint); | |
994 | int xfs_trans_read_buf(struct xfs_mount *, xfs_trans_t *, | |
995 | struct xfs_buftarg *, xfs_daddr_t, int, uint, | |
996 | struct xfs_buf **); | |
997 | struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int); | |
998 | ||
999 | void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *); | |
1000 | void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *); | |
1001 | void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *); | |
1002 | void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *); | |
1003 | void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *); | |
1004 | void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *); | |
1005 | void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *); | |
1006 | void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint); | |
1007 | void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *); | |
1008 | int xfs_trans_iget(struct xfs_mount *, xfs_trans_t *, | |
1009 | xfs_ino_t , uint, uint, struct xfs_inode **); | |
1010 | void xfs_trans_ijoin(xfs_trans_t *, struct xfs_inode *, uint); | |
1011 | void xfs_trans_ihold(xfs_trans_t *, struct xfs_inode *); | |
1da177e4 LT |
1012 | void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint); |
1013 | void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint); | |
1014 | struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint); | |
1015 | void xfs_efi_release(struct xfs_efi_log_item *, uint); | |
1016 | void xfs_trans_log_efi_extent(xfs_trans_t *, | |
1017 | struct xfs_efi_log_item *, | |
1018 | xfs_fsblock_t, | |
1019 | xfs_extlen_t); | |
1020 | struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *, | |
1021 | struct xfs_efi_log_item *, | |
1022 | uint); | |
1023 | void xfs_trans_log_efd_extent(xfs_trans_t *, | |
1024 | struct xfs_efd_log_item *, | |
1025 | xfs_fsblock_t, | |
1026 | xfs_extlen_t); | |
1027 | int xfs_trans_commit(xfs_trans_t *, uint flags, xfs_lsn_t *); | |
1028 | void xfs_trans_cancel(xfs_trans_t *, int); | |
1029 | void xfs_trans_ail_init(struct xfs_mount *); | |
1030 | xfs_lsn_t xfs_trans_push_ail(struct xfs_mount *, xfs_lsn_t); | |
1031 | xfs_lsn_t xfs_trans_tail_ail(struct xfs_mount *); | |
1032 | void xfs_trans_unlocked_item(struct xfs_mount *, | |
1033 | xfs_log_item_t *); | |
1034 | xfs_log_busy_slot_t *xfs_trans_add_busy(xfs_trans_t *tp, | |
1035 | xfs_agnumber_t ag, | |
1036 | xfs_extlen_t idx); | |
1037 | ||
1038 | #endif /* __KERNEL__ */ | |
1039 | ||
1040 | #endif /* __XFS_TRANS_H__ */ |