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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
21/*
22 * This is the structure written in the log at the head of
23 * every transaction. It identifies the type and id of the
24 * transaction, and contains the number of items logged by
25 * the transaction so we know how many to expect during recovery.
26 *
27 * Do not change the below structure without redoing the code in
28 * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans().
29 */
30typedef struct xfs_trans_header {
31 uint th_magic; /* magic number */
32 uint th_type; /* transaction type */
33 __int32_t th_tid; /* transaction id (unused) */
34 uint th_num_items; /* num items logged by trans */
35} xfs_trans_header_t;
36
37#define XFS_TRANS_HEADER_MAGIC 0x5452414e /* TRAN */
38
39/*
40 * Log item types.
41 */
42#define XFS_LI_5_3_BUF 0x1234 /* v1 bufs, 1-block inode buffers */
43#define XFS_LI_5_3_INODE 0x1235 /* 1-block inode buffers */
44#define XFS_LI_EFI 0x1236
45#define XFS_LI_EFD 0x1237
46#define XFS_LI_IUNLINK 0x1238
47#define XFS_LI_6_1_INODE 0x1239 /* 4K non-aligned inode bufs */
48#define XFS_LI_6_1_BUF 0x123a /* v1, 4K inode buffers */
49#define XFS_LI_INODE 0x123b /* aligned ino chunks, var-size ibufs */
50#define XFS_LI_BUF 0x123c /* v2 bufs, variable sized inode bufs */
51#define XFS_LI_DQUOT 0x123d
52#define XFS_LI_QUOTAOFF 0x123e
53
54/*
55 * Transaction types. Used to distinguish types of buffers.
56 */
57#define XFS_TRANS_SETATTR_NOT_SIZE 1
58#define XFS_TRANS_SETATTR_SIZE 2
59#define XFS_TRANS_INACTIVE 3
60#define XFS_TRANS_CREATE 4
61#define XFS_TRANS_CREATE_TRUNC 5
62#define XFS_TRANS_TRUNCATE_FILE 6
63#define XFS_TRANS_REMOVE 7
64#define XFS_TRANS_LINK 8
65#define XFS_TRANS_RENAME 9
66#define XFS_TRANS_MKDIR 10
67#define XFS_TRANS_RMDIR 11
68#define XFS_TRANS_SYMLINK 12
69#define XFS_TRANS_SET_DMATTRS 13
70#define XFS_TRANS_GROWFS 14
71#define XFS_TRANS_STRAT_WRITE 15
72#define XFS_TRANS_DIOSTRAT 16
73#define XFS_TRANS_WRITE_SYNC 17
74#define XFS_TRANS_WRITEID 18
75#define XFS_TRANS_ADDAFORK 19
76#define XFS_TRANS_ATTRINVAL 20
77#define XFS_TRANS_ATRUNCATE 21
78#define XFS_TRANS_ATTR_SET 22
79#define XFS_TRANS_ATTR_RM 23
80#define XFS_TRANS_ATTR_FLAG 24
81#define XFS_TRANS_CLEAR_AGI_BUCKET 25
82#define XFS_TRANS_QM_SBCHANGE 26
83/*
84 * Dummy entries since we use the transaction type to index into the
85 * trans_type[] in xlog_recover_print_trans_head()
86 */
87#define XFS_TRANS_DUMMY1 27
88#define XFS_TRANS_DUMMY2 28
89#define XFS_TRANS_QM_QUOTAOFF 29
90#define XFS_TRANS_QM_DQALLOC 30
91#define XFS_TRANS_QM_SETQLIM 31
92#define XFS_TRANS_QM_DQCLUSTER 32
93#define XFS_TRANS_QM_QINOCREATE 33
94#define XFS_TRANS_QM_QUOTAOFF_END 34
95#define XFS_TRANS_SB_UNIT 35
96#define XFS_TRANS_FSYNC_TS 36
97#define XFS_TRANS_GROWFSRT_ALLOC 37
98#define XFS_TRANS_GROWFSRT_ZERO 38
99#define XFS_TRANS_GROWFSRT_FREE 39
100#define XFS_TRANS_SWAPEXT 40
Tim Shimmin7e9c6392005-09-02 16:42:05 +1000101#define XFS_TRANS_TYPE_MAX 40
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102/* new transaction types need to be reflected in xfs_logprint(8) */
103
104
105#ifdef __KERNEL__
106struct xfs_buf;
107struct xfs_buftarg;
108struct xfs_efd_log_item;
109struct xfs_efi_log_item;
110struct xfs_inode;
111struct xfs_item_ops;
112struct xfs_log_iovec;
113struct xfs_log_item;
114struct xfs_log_item_desc;
115struct xfs_mount;
116struct xfs_trans;
117struct xfs_dquot_acct;
118
119typedef struct xfs_ail_entry {
120 struct xfs_log_item *ail_forw; /* AIL forw pointer */
121 struct xfs_log_item *ail_back; /* AIL back pointer */
122} xfs_ail_entry_t;
123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124typedef struct xfs_log_item {
125 xfs_ail_entry_t li_ail; /* AIL pointers */
126 xfs_lsn_t li_lsn; /* last on-disk lsn */
127 struct xfs_log_item_desc *li_desc; /* ptr to current desc*/
128 struct xfs_mount *li_mountp; /* ptr to fs mount */
129 uint li_type; /* item type */
130 uint li_flags; /* misc flags */
131 struct xfs_log_item *li_bio_list; /* buffer item list */
132 void (*li_cb)(struct xfs_buf *,
133 struct xfs_log_item *);
134 /* buffer item iodone */
135 /* callback func */
136 struct xfs_item_ops *li_ops; /* function list */
137} xfs_log_item_t;
138
139#define XFS_LI_IN_AIL 0x1
140#define XFS_LI_ABORTED 0x2
141
142typedef struct xfs_item_ops {
143 uint (*iop_size)(xfs_log_item_t *);
144 void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *);
145 void (*iop_pin)(xfs_log_item_t *);
146 void (*iop_unpin)(xfs_log_item_t *, int);
147 void (*iop_unpin_remove)(xfs_log_item_t *, struct xfs_trans *);
148 uint (*iop_trylock)(xfs_log_item_t *);
149 void (*iop_unlock)(xfs_log_item_t *);
150 xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
151 void (*iop_push)(xfs_log_item_t *);
152 void (*iop_abort)(xfs_log_item_t *);
153 void (*iop_pushbuf)(xfs_log_item_t *);
154 void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
155} xfs_item_ops_t;
156
157#define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip)
158#define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp)
159#define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip)
160#define IOP_UNPIN(ip, flags) (*(ip)->li_ops->iop_unpin)(ip, flags)
161#define IOP_UNPIN_REMOVE(ip,tp) (*(ip)->li_ops->iop_unpin_remove)(ip, tp)
162#define IOP_TRYLOCK(ip) (*(ip)->li_ops->iop_trylock)(ip)
163#define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip)
164#define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn)
165#define IOP_PUSH(ip) (*(ip)->li_ops->iop_push)(ip)
166#define IOP_ABORT(ip) (*(ip)->li_ops->iop_abort)(ip)
167#define IOP_PUSHBUF(ip) (*(ip)->li_ops->iop_pushbuf)(ip)
168#define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn)
169
170/*
171 * Return values for the IOP_TRYLOCK() routines.
172 */
173#define XFS_ITEM_SUCCESS 0
174#define XFS_ITEM_PINNED 1
175#define XFS_ITEM_LOCKED 2
176#define XFS_ITEM_FLUSHING 3
177#define XFS_ITEM_PUSHBUF 4
178
179#endif /* __KERNEL__ */
180
181/*
182 * This structure is used to track log items associated with
183 * a transaction. It points to the log item and keeps some
184 * flags to track the state of the log item. It also tracks
185 * the amount of space needed to log the item it describes
186 * once we get to commit processing (see xfs_trans_commit()).
187 */
188typedef struct xfs_log_item_desc {
189 xfs_log_item_t *lid_item;
190 ushort lid_size;
191 unsigned char lid_flags;
192 unsigned char lid_index;
193} xfs_log_item_desc_t;
194
195#define XFS_LID_DIRTY 0x1
196#define XFS_LID_PINNED 0x2
197#define XFS_LID_BUF_STALE 0x8
198
199/*
200 * This structure is used to maintain a chunk list of log_item_desc
201 * structures. The free field is a bitmask indicating which descriptors
202 * in this chunk's array are free. The unused field is the first value
203 * not used since this chunk was allocated.
204 */
205#define XFS_LIC_NUM_SLOTS 15
206typedef struct xfs_log_item_chunk {
207 struct xfs_log_item_chunk *lic_next;
208 ushort lic_free;
209 ushort lic_unused;
210 xfs_log_item_desc_t lic_descs[XFS_LIC_NUM_SLOTS];
211} xfs_log_item_chunk_t;
212
213#define XFS_LIC_MAX_SLOT (XFS_LIC_NUM_SLOTS - 1)
214#define XFS_LIC_FREEMASK ((1 << XFS_LIC_NUM_SLOTS) - 1)
215
216
217/*
218 * Initialize the given chunk. Set the chunk's free descriptor mask
219 * to indicate that all descriptors are free. The caller gets to set
220 * lic_unused to the right value (0 matches all free). The
221 * lic_descs.lid_index values are set up as each desc is allocated.
222 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223#define XFS_LIC_INIT(cp) xfs_lic_init(cp)
Nathan Scotta844f452005-11-02 14:38:42 +1100224static inline void xfs_lic_init(xfs_log_item_chunk_t *cp)
225{
226 cp->lic_free = XFS_LIC_FREEMASK;
227}
228
Linus Torvalds1da177e2005-04-16 15:20:36 -0700229#define XFS_LIC_INIT_SLOT(cp,slot) xfs_lic_init_slot(cp, slot)
Nathan Scotta844f452005-11-02 14:38:42 +1100230static inline void xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot)
231{
232 cp->lic_descs[slot].lid_index = (unsigned char)(slot);
233}
234
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235#define XFS_LIC_VACANCY(cp) xfs_lic_vacancy(cp)
Nathan Scotta844f452005-11-02 14:38:42 +1100236static inline int xfs_lic_vacancy(xfs_log_item_chunk_t *cp)
237{
238 return cp->lic_free & XFS_LIC_FREEMASK;
239}
240
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241#define XFS_LIC_ALL_FREE(cp) xfs_lic_all_free(cp)
Nathan Scotta844f452005-11-02 14:38:42 +1100242static inline void xfs_lic_all_free(xfs_log_item_chunk_t *cp)
243{
244 cp->lic_free = XFS_LIC_FREEMASK;
245}
246
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247#define XFS_LIC_ARE_ALL_FREE(cp) xfs_lic_are_all_free(cp)
Nathan Scotta844f452005-11-02 14:38:42 +1100248static inline int xfs_lic_are_all_free(xfs_log_item_chunk_t *cp)
249{
250 return ((cp->lic_free & XFS_LIC_FREEMASK) == XFS_LIC_FREEMASK);
251}
252
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253#define XFS_LIC_ISFREE(cp,slot) xfs_lic_isfree(cp,slot)
Nathan Scotta844f452005-11-02 14:38:42 +1100254static inline int xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot)
255{
256 return (cp->lic_free & (1 << slot));
257}
258
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259#define XFS_LIC_CLAIM(cp,slot) xfs_lic_claim(cp,slot)
Nathan Scotta844f452005-11-02 14:38:42 +1100260static inline void xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot)
261{
262 cp->lic_free &= ~(1 << slot);
263}
264
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265#define XFS_LIC_RELSE(cp,slot) xfs_lic_relse(cp,slot)
Nathan Scotta844f452005-11-02 14:38:42 +1100266static inline void xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot)
267{
268 cp->lic_free |= 1 << slot;
269}
270
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271#define XFS_LIC_SLOT(cp,slot) xfs_lic_slot(cp,slot)
Nathan Scotta844f452005-11-02 14:38:42 +1100272static inline xfs_log_item_desc_t *
273xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot)
274{
275 return &(cp->lic_descs[slot]);
276}
277
Linus Torvalds1da177e2005-04-16 15:20:36 -0700278#define XFS_LIC_DESC_TO_SLOT(dp) xfs_lic_desc_to_slot(dp)
Nathan Scotta844f452005-11-02 14:38:42 +1100279static inline int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp)
280{
281 return (uint)dp->lid_index;
282}
283
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284/*
285 * Calculate the address of a chunk given a descriptor pointer:
286 * dp - dp->lid_index give the address of the start of the lic_descs array.
287 * From this we subtract the offset of the lic_descs field in a chunk.
288 * All of this yields the address of the chunk, which is
289 * cast to a chunk pointer.
290 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291#define XFS_LIC_DESC_TO_CHUNK(dp) xfs_lic_desc_to_chunk(dp)
Nathan Scotta844f452005-11-02 14:38:42 +1100292static inline xfs_log_item_chunk_t *
293xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp)
294{
295 return (xfs_log_item_chunk_t*) \
296 (((xfs_caddr_t)((dp) - (dp)->lid_index)) - \
297 (xfs_caddr_t)(((xfs_log_item_chunk_t*)0)->lic_descs));
298}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299
300#ifdef __KERNEL__
301/*
302 * This structure is used to maintain a list of block ranges that have been
303 * freed in the transaction. The ranges are listed in the perag[] busy list
304 * between when they're freed and the transaction is committed to disk.
305 */
306
307typedef struct xfs_log_busy_slot {
308 xfs_agnumber_t lbc_ag;
309 ushort lbc_idx; /* index in perag.busy[] */
310} xfs_log_busy_slot_t;
311
312#define XFS_LBC_NUM_SLOTS 31
313typedef struct xfs_log_busy_chunk {
314 struct xfs_log_busy_chunk *lbc_next;
Nathan Scotta844f452005-11-02 14:38:42 +1100315 uint lbc_free; /* free slots bitmask */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 ushort lbc_unused; /* first unused */
317 xfs_log_busy_slot_t lbc_busy[XFS_LBC_NUM_SLOTS];
318} xfs_log_busy_chunk_t;
319
320#define XFS_LBC_MAX_SLOT (XFS_LBC_NUM_SLOTS - 1)
321#define XFS_LBC_FREEMASK ((1U << XFS_LBC_NUM_SLOTS) - 1)
322
323#define XFS_LBC_INIT(cp) ((cp)->lbc_free = XFS_LBC_FREEMASK)
324#define XFS_LBC_CLAIM(cp, slot) ((cp)->lbc_free &= ~(1 << (slot)))
325#define XFS_LBC_SLOT(cp, slot) (&((cp)->lbc_busy[(slot)]))
326#define XFS_LBC_VACANCY(cp) (((cp)->lbc_free) & XFS_LBC_FREEMASK)
327#define XFS_LBC_ISFREE(cp, slot) ((cp)->lbc_free & (1 << (slot)))
328
329/*
330 * This is the type of function which can be given to xfs_trans_callback()
331 * to be called upon the transaction's commit to disk.
332 */
333typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *);
334
335/*
336 * This is the structure maintained for every active transaction.
337 */
338typedef struct xfs_trans {
339 unsigned int t_magic; /* magic number */
340 xfs_log_callback_t t_logcb; /* log callback struct */
341 struct xfs_trans *t_forw; /* async list pointers */
342 struct xfs_trans *t_back; /* async list pointers */
343 unsigned int t_type; /* transaction type */
344 unsigned int t_log_res; /* amt of log space resvd */
345 unsigned int t_log_count; /* count for perm log res */
346 unsigned int t_blk_res; /* # of blocks resvd */
347 unsigned int t_blk_res_used; /* # of resvd blocks used */
348 unsigned int t_rtx_res; /* # of rt extents resvd */
349 unsigned int t_rtx_res_used; /* # of resvd rt extents used */
350 xfs_log_ticket_t t_ticket; /* log mgr ticket */
351 sema_t t_sema; /* sema for commit completion */
352 xfs_lsn_t t_lsn; /* log seq num of start of
353 * transaction. */
354 xfs_lsn_t t_commit_lsn; /* log seq num of end of
355 * transaction. */
356 struct xfs_mount *t_mountp; /* ptr to fs mount struct */
Nathan Scottc41564b2006-03-29 08:55:14 +1000357 struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358 xfs_trans_callback_t t_callback; /* transaction callback */
359 void *t_callarg; /* callback arg */
360 unsigned int t_flags; /* misc flags */
361 long t_icount_delta; /* superblock icount change */
362 long t_ifree_delta; /* superblock ifree change */
363 long t_fdblocks_delta; /* superblock fdblocks chg */
364 long t_res_fdblocks_delta; /* on-disk only chg */
365 long t_frextents_delta;/* superblock freextents chg*/
366 long t_res_frextents_delta; /* on-disk only chg */
367 long t_ag_freeblks_delta; /* debugging counter */
368 long t_ag_flist_delta; /* debugging counter */
369 long t_ag_btree_delta; /* debugging counter */
370 long t_dblocks_delta;/* superblock dblocks change */
371 long t_agcount_delta;/* superblock agcount change */
372 long t_imaxpct_delta;/* superblock imaxpct change */
373 long t_rextsize_delta;/* superblock rextsize chg */
374 long t_rbmblocks_delta;/* superblock rbmblocks chg */
375 long t_rblocks_delta;/* superblock rblocks change */
376 long t_rextents_delta;/* superblocks rextents chg */
377 long t_rextslog_delta;/* superblocks rextslog chg */
378 unsigned int t_items_free; /* log item descs free */
379 xfs_log_item_chunk_t t_items; /* first log item desc chunk */
380 xfs_trans_header_t t_header; /* header for in-log trans */
381 unsigned int t_busy_free; /* busy descs free */
382 xfs_log_busy_chunk_t t_busy; /* busy/async free blocks */
Nathan Scott87582802006-03-14 13:18:19 +1100383 unsigned long t_pflags; /* saved process flags state */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384} xfs_trans_t;
385
386#endif /* __KERNEL__ */
387
388
389#define XFS_TRANS_MAGIC 0x5452414E /* 'TRAN' */
390/*
391 * Values for t_flags.
392 */
393#define XFS_TRANS_DIRTY 0x01 /* something needs to be logged */
394#define XFS_TRANS_SB_DIRTY 0x02 /* superblock is modified */
395#define XFS_TRANS_PERM_LOG_RES 0x04 /* xact took a permanent log res */
396#define XFS_TRANS_SYNC 0x08 /* make commit synchronous */
397#define XFS_TRANS_DQ_DIRTY 0x10 /* at least one dquot in trx dirty */
398#define XFS_TRANS_RESERVE 0x20 /* OK to use reserved data blocks */
399
400/*
401 * Values for call flags parameter.
402 */
403#define XFS_TRANS_NOSLEEP 0x1
404#define XFS_TRANS_WAIT 0x2
405#define XFS_TRANS_RELEASE_LOG_RES 0x4
406#define XFS_TRANS_ABORT 0x8
407
408/*
409 * Field values for xfs_trans_mod_sb.
410 */
411#define XFS_TRANS_SB_ICOUNT 0x00000001
412#define XFS_TRANS_SB_IFREE 0x00000002
413#define XFS_TRANS_SB_FDBLOCKS 0x00000004
414#define XFS_TRANS_SB_RES_FDBLOCKS 0x00000008
415#define XFS_TRANS_SB_FREXTENTS 0x00000010
416#define XFS_TRANS_SB_RES_FREXTENTS 0x00000020
417#define XFS_TRANS_SB_DBLOCKS 0x00000040
418#define XFS_TRANS_SB_AGCOUNT 0x00000080
419#define XFS_TRANS_SB_IMAXPCT 0x00000100
420#define XFS_TRANS_SB_REXTSIZE 0x00000200
421#define XFS_TRANS_SB_RBMBLOCKS 0x00000400
422#define XFS_TRANS_SB_RBLOCKS 0x00000800
423#define XFS_TRANS_SB_REXTENTS 0x00001000
424#define XFS_TRANS_SB_REXTSLOG 0x00002000
425
426
427/*
428 * Various log reservation values.
429 * These are based on the size of the file system block
430 * because that is what most transactions manipulate.
431 * Each adds in an additional 128 bytes per item logged to
432 * try to account for the overhead of the transaction mechanism.
433 *
434 * Note:
435 * Most of the reservations underestimate the number of allocation
436 * groups into which they could free extents in the xfs_bmap_finish()
437 * call. This is because the number in the worst case is quite high
438 * and quite unusual. In order to fix this we need to change
439 * xfs_bmap_finish() to free extents in only a single AG at a time.
440 * This will require changes to the EFI code as well, however, so that
441 * the EFI for the extents not freed is logged again in each transaction.
442 * See bug 261917.
443 */
444
445/*
446 * Per-extent log reservation for the allocation btree changes
447 * involved in freeing or allocating an extent.
448 * 2 trees * (2 blocks/level * max depth - 1) * block size
449 */
450#define XFS_ALLOCFREE_LOG_RES(mp,nx) \
451 ((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1)))
452#define XFS_ALLOCFREE_LOG_COUNT(mp,nx) \
453 ((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1)))
454
455/*
456 * Per-directory log reservation for any directory change.
457 * dir blocks: (1 btree block per level + data block + free block) * dblock size
458 * bmap btree: (levels + 2) * max depth * block size
459 * v2 directory blocks can be fragmented below the dirblksize down to the fsb
460 * size, so account for that in the DAENTER macros.
461 */
462#define XFS_DIROP_LOG_RES(mp) \
463 (XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \
464 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)))
465#define XFS_DIROP_LOG_COUNT(mp) \
466 (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \
467 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)
468
469/*
470 * In a write transaction we can allocate a maximum of 2
471 * extents. This gives:
472 * the inode getting the new extents: inode size
473 * the inode\'s bmap btree: max depth * block size
474 * the agfs of the ags from which the extents are allocated: 2 * sector
475 * the superblock free block counter: sector size
476 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
477 * And the bmap_finish transaction can free bmap blocks in a join:
478 * the agfs of the ags containing the blocks: 2 * sector size
479 * the agfls of the ags containing the blocks: 2 * sector size
480 * the super block free block counter: sector size
481 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
482 */
483#define XFS_CALC_WRITE_LOG_RES(mp) \
484 (MAX( \
485 ((mp)->m_sb.sb_inodesize + \
486 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \
487 (2 * (mp)->m_sb.sb_sectsize) + \
488 (mp)->m_sb.sb_sectsize + \
489 XFS_ALLOCFREE_LOG_RES(mp, 2) + \
490 (128 * (4 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))),\
491 ((2 * (mp)->m_sb.sb_sectsize) + \
492 (2 * (mp)->m_sb.sb_sectsize) + \
493 (mp)->m_sb.sb_sectsize + \
494 XFS_ALLOCFREE_LOG_RES(mp, 2) + \
495 (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
496
497#define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write)
498
499/*
500 * In truncating a file we free up to two extents at once. We can modify:
501 * the inode being truncated: inode size
502 * the inode\'s bmap btree: (max depth + 1) * block size
503 * And the bmap_finish transaction can free the blocks and bmap blocks:
504 * the agf for each of the ags: 4 * sector size
505 * the agfl for each of the ags: 4 * sector size
506 * the super block to reflect the freed blocks: sector size
507 * worst case split in allocation btrees per extent assuming 4 extents:
508 * 4 exts * 2 trees * (2 * max depth - 1) * block size
509 * the inode btree: max depth * blocksize
510 * the allocation btrees: 2 trees * (max depth - 1) * block size
511 */
512#define XFS_CALC_ITRUNCATE_LOG_RES(mp) \
513 (MAX( \
514 ((mp)->m_sb.sb_inodesize + \
515 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + 1) + \
516 (128 * (2 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \
517 ((4 * (mp)->m_sb.sb_sectsize) + \
518 (4 * (mp)->m_sb.sb_sectsize) + \
519 (mp)->m_sb.sb_sectsize + \
520 XFS_ALLOCFREE_LOG_RES(mp, 4) + \
521 (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))) + \
522 (128 * 5) + \
523 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
524 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
525 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
526
527#define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate)
528
529/*
530 * In renaming a files we can modify:
531 * the four inodes involved: 4 * inode size
532 * the two directory btrees: 2 * (max depth + v2) * dir block size
533 * the two directory bmap btrees: 2 * max depth * block size
534 * And the bmap_finish transaction can free dir and bmap blocks (two sets
535 * of bmap blocks) giving:
536 * the agf for the ags in which the blocks live: 3 * sector size
537 * the agfl for the ags in which the blocks live: 3 * sector size
538 * the superblock for the free block count: sector size
539 * the allocation btrees: 3 exts * 2 trees * (2 * max depth - 1) * block size
540 */
541#define XFS_CALC_RENAME_LOG_RES(mp) \
542 (MAX( \
543 ((4 * (mp)->m_sb.sb_inodesize) + \
544 (2 * XFS_DIROP_LOG_RES(mp)) + \
545 (128 * (4 + 2 * XFS_DIROP_LOG_COUNT(mp)))), \
546 ((3 * (mp)->m_sb.sb_sectsize) + \
547 (3 * (mp)->m_sb.sb_sectsize) + \
548 (mp)->m_sb.sb_sectsize + \
549 XFS_ALLOCFREE_LOG_RES(mp, 3) + \
550 (128 * (7 + XFS_ALLOCFREE_LOG_COUNT(mp, 3))))))
551
552#define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename)
553
554/*
555 * For creating a link to an inode:
556 * the parent directory inode: inode size
557 * the linked inode: inode size
558 * the directory btree could split: (max depth + v2) * dir block size
559 * the directory bmap btree could join or split: (max depth + v2) * blocksize
560 * And the bmap_finish transaction can free some bmap blocks giving:
561 * the agf for the ag in which the blocks live: sector size
562 * the agfl for the ag in which the blocks live: sector size
563 * the superblock for the free block count: sector size
564 * the allocation btrees: 2 trees * (2 * max depth - 1) * block size
565 */
566#define XFS_CALC_LINK_LOG_RES(mp) \
567 (MAX( \
568 ((mp)->m_sb.sb_inodesize + \
569 (mp)->m_sb.sb_inodesize + \
570 XFS_DIROP_LOG_RES(mp) + \
571 (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \
572 ((mp)->m_sb.sb_sectsize + \
573 (mp)->m_sb.sb_sectsize + \
574 (mp)->m_sb.sb_sectsize + \
575 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
576 (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
577
578#define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link)
579
580/*
581 * For removing a directory entry we can modify:
582 * the parent directory inode: inode size
583 * the removed inode: inode size
584 * the directory btree could join: (max depth + v2) * dir block size
585 * the directory bmap btree could join or split: (max depth + v2) * blocksize
586 * And the bmap_finish transaction can free the dir and bmap blocks giving:
587 * the agf for the ag in which the blocks live: 2 * sector size
588 * the agfl for the ag in which the blocks live: 2 * sector size
589 * the superblock for the free block count: sector size
590 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
591 */
592#define XFS_CALC_REMOVE_LOG_RES(mp) \
593 (MAX( \
594 ((mp)->m_sb.sb_inodesize + \
595 (mp)->m_sb.sb_inodesize + \
596 XFS_DIROP_LOG_RES(mp) + \
597 (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \
598 ((2 * (mp)->m_sb.sb_sectsize) + \
599 (2 * (mp)->m_sb.sb_sectsize) + \
600 (mp)->m_sb.sb_sectsize + \
601 XFS_ALLOCFREE_LOG_RES(mp, 2) + \
602 (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
603
604#define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove)
605
606/*
607 * For symlink we can modify:
608 * the parent directory inode: inode size
609 * the new inode: inode size
610 * the inode btree entry: 1 block
611 * the directory btree: (max depth + v2) * dir block size
612 * the directory inode\'s bmap btree: (max depth + v2) * block size
613 * the blocks for the symlink: 1 KB
614 * Or in the first xact we allocate some inodes giving:
615 * the agi and agf of the ag getting the new inodes: 2 * sectorsize
616 * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
617 * the inode btree: max depth * blocksize
618 * the allocation btrees: 2 trees * (2 * max depth - 1) * block size
619 */
620#define XFS_CALC_SYMLINK_LOG_RES(mp) \
621 (MAX( \
622 ((mp)->m_sb.sb_inodesize + \
623 (mp)->m_sb.sb_inodesize + \
624 XFS_FSB_TO_B(mp, 1) + \
625 XFS_DIROP_LOG_RES(mp) + \
626 1024 + \
627 (128 * (4 + XFS_DIROP_LOG_COUNT(mp)))), \
628 (2 * (mp)->m_sb.sb_sectsize + \
629 XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \
630 XFS_FSB_TO_B((mp), XFS_IN_MAXLEVELS(mp)) + \
631 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
632 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
633 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
634
635#define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink)
636
637/*
638 * For create we can modify:
639 * the parent directory inode: inode size
640 * the new inode: inode size
641 * the inode btree entry: block size
642 * the superblock for the nlink flag: sector size
643 * the directory btree: (max depth + v2) * dir block size
644 * the directory inode\'s bmap btree: (max depth + v2) * block size
645 * Or in the first xact we allocate some inodes giving:
646 * the agi and agf of the ag getting the new inodes: 2 * sectorsize
647 * the superblock for the nlink flag: sector size
648 * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
649 * the inode btree: max depth * blocksize
650 * the allocation btrees: 2 trees * (max depth - 1) * block size
651 */
652#define XFS_CALC_CREATE_LOG_RES(mp) \
653 (MAX( \
654 ((mp)->m_sb.sb_inodesize + \
655 (mp)->m_sb.sb_inodesize + \
656 (mp)->m_sb.sb_sectsize + \
657 XFS_FSB_TO_B(mp, 1) + \
658 XFS_DIROP_LOG_RES(mp) + \
659 (128 * (3 + XFS_DIROP_LOG_COUNT(mp)))), \
660 (3 * (mp)->m_sb.sb_sectsize + \
661 XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \
662 XFS_FSB_TO_B((mp), XFS_IN_MAXLEVELS(mp)) + \
663 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
664 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
665 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
666
667#define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create)
668
669/*
670 * Making a new directory is the same as creating a new file.
671 */
672#define XFS_CALC_MKDIR_LOG_RES(mp) XFS_CALC_CREATE_LOG_RES(mp)
673
674#define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir)
675
676/*
677 * In freeing an inode we can modify:
678 * the inode being freed: inode size
679 * the super block free inode counter: sector size
680 * the agi hash list and counters: sector size
681 * the inode btree entry: block size
682 * the on disk inode before ours in the agi hash list: inode cluster size
683 * the inode btree: max depth * blocksize
684 * the allocation btrees: 2 trees * (max depth - 1) * block size
685 */
686#define XFS_CALC_IFREE_LOG_RES(mp) \
687 ((mp)->m_sb.sb_inodesize + \
688 (mp)->m_sb.sb_sectsize + \
689 (mp)->m_sb.sb_sectsize + \
690 XFS_FSB_TO_B((mp), 1) + \
691 MAX((__uint16_t)XFS_FSB_TO_B((mp), 1), XFS_INODE_CLUSTER_SIZE(mp)) + \
692 (128 * 5) + \
693 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
694 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
695 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
696
697
698#define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree)
699
700/*
701 * When only changing the inode we log the inode and possibly the superblock
702 * We also add a bit of slop for the transaction stuff.
703 */
704#define XFS_CALC_ICHANGE_LOG_RES(mp) ((mp)->m_sb.sb_inodesize + \
705 (mp)->m_sb.sb_sectsize + 512)
706
707#define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange)
708
709/*
710 * Growing the data section of the filesystem.
711 * superblock
712 * agi and agf
713 * allocation btrees
714 */
715#define XFS_CALC_GROWDATA_LOG_RES(mp) \
716 ((mp)->m_sb.sb_sectsize * 3 + \
717 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
718 (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
719
720#define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata)
721
722/*
723 * Growing the rt section of the filesystem.
724 * In the first set of transactions (ALLOC) we allocate space to the
725 * bitmap or summary files.
726 * superblock: sector size
727 * agf of the ag from which the extent is allocated: sector size
728 * bmap btree for bitmap/summary inode: max depth * blocksize
729 * bitmap/summary inode: inode size
730 * allocation btrees for 1 block alloc: 2 * (2 * maxdepth - 1) * blocksize
731 */
732#define XFS_CALC_GROWRTALLOC_LOG_RES(mp) \
733 (2 * (mp)->m_sb.sb_sectsize + \
734 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \
735 (mp)->m_sb.sb_inodesize + \
736 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
737 (128 * \
738 (3 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + \
739 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
740
741#define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc)
742
743/*
744 * Growing the rt section of the filesystem.
745 * In the second set of transactions (ZERO) we zero the new metadata blocks.
746 * one bitmap/summary block: blocksize
747 */
748#define XFS_CALC_GROWRTZERO_LOG_RES(mp) \
749 ((mp)->m_sb.sb_blocksize + 128)
750
751#define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero)
752
753/*
754 * Growing the rt section of the filesystem.
755 * In the third set of transactions (FREE) we update metadata without
756 * allocating any new blocks.
757 * superblock: sector size
758 * bitmap inode: inode size
759 * summary inode: inode size
760 * one bitmap block: blocksize
761 * summary blocks: new summary size
762 */
763#define XFS_CALC_GROWRTFREE_LOG_RES(mp) \
764 ((mp)->m_sb.sb_sectsize + \
765 2 * (mp)->m_sb.sb_inodesize + \
766 (mp)->m_sb.sb_blocksize + \
767 (mp)->m_rsumsize + \
768 (128 * 5))
769
770#define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree)
771
772/*
773 * Logging the inode modification timestamp on a synchronous write.
774 * inode
775 */
776#define XFS_CALC_SWRITE_LOG_RES(mp) \
777 ((mp)->m_sb.sb_inodesize + 128)
778
779#define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
780
781/*
782 * Logging the inode timestamps on an fsync -- same as SWRITE
783 * as long as SWRITE logs the entire inode core
784 */
785#define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
786
787/*
788 * Logging the inode mode bits when writing a setuid/setgid file
789 * inode
790 */
791#define XFS_CALC_WRITEID_LOG_RES(mp) \
792 ((mp)->m_sb.sb_inodesize + 128)
793
794#define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
795
796/*
797 * Converting the inode from non-attributed to attributed.
798 * the inode being converted: inode size
799 * agf block and superblock (for block allocation)
800 * the new block (directory sized)
801 * bmap blocks for the new directory block
802 * allocation btrees
803 */
804#define XFS_CALC_ADDAFORK_LOG_RES(mp) \
805 ((mp)->m_sb.sb_inodesize + \
806 (mp)->m_sb.sb_sectsize * 2 + \
807 (mp)->m_dirblksize + \
808 (XFS_DIR_IS_V1(mp) ? 0 : \
809 XFS_FSB_TO_B(mp, (XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1))) + \
810 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
811 (128 * (4 + \
812 (XFS_DIR_IS_V1(mp) ? 0 : \
813 XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1) + \
814 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
815
816#define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork)
817
818/*
819 * Removing the attribute fork of a file
820 * the inode being truncated: inode size
821 * the inode\'s bmap btree: max depth * block size
822 * And the bmap_finish transaction can free the blocks and bmap blocks:
823 * the agf for each of the ags: 4 * sector size
824 * the agfl for each of the ags: 4 * sector size
825 * the super block to reflect the freed blocks: sector size
826 * worst case split in allocation btrees per extent assuming 4 extents:
827 * 4 exts * 2 trees * (2 * max depth - 1) * block size
828 */
829#define XFS_CALC_ATTRINVAL_LOG_RES(mp) \
830 (MAX( \
831 ((mp)->m_sb.sb_inodesize + \
832 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \
833 (128 * (1 + XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))), \
834 ((4 * (mp)->m_sb.sb_sectsize) + \
835 (4 * (mp)->m_sb.sb_sectsize) + \
836 (mp)->m_sb.sb_sectsize + \
837 XFS_ALLOCFREE_LOG_RES(mp, 4) + \
838 (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))))))
839
840#define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval)
841
842/*
843 * Setting an attribute.
844 * the inode getting the attribute
845 * the superblock for allocations
846 * the agfs extents are allocated from
847 * the attribute btree * max depth
848 * the inode allocation btree
849 * Since attribute transaction space is dependent on the size of the attribute,
850 * the calculation is done partially at mount time and partially at runtime.
851 */
852#define XFS_CALC_ATTRSET_LOG_RES(mp) \
853 ((mp)->m_sb.sb_inodesize + \
854 (mp)->m_sb.sb_sectsize + \
855 XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \
856 (128 * (2 + XFS_DA_NODE_MAXDEPTH)))
857
858#define XFS_ATTRSET_LOG_RES(mp, ext) \
859 ((mp)->m_reservations.tr_attrset + \
860 (ext * (mp)->m_sb.sb_sectsize) + \
861 (ext * XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))) + \
862 (128 * (ext + (ext * XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))))
863
864/*
865 * Removing an attribute.
866 * the inode: inode size
867 * the attribute btree could join: max depth * block size
868 * the inode bmap btree could join or split: max depth * block size
869 * And the bmap_finish transaction can free the attr blocks freed giving:
870 * the agf for the ag in which the blocks live: 2 * sector size
871 * the agfl for the ag in which the blocks live: 2 * sector size
872 * the superblock for the free block count: sector size
873 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
874 */
875#define XFS_CALC_ATTRRM_LOG_RES(mp) \
876 (MAX( \
877 ((mp)->m_sb.sb_inodesize + \
878 XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \
879 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \
880 (128 * (1 + XFS_DA_NODE_MAXDEPTH + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \
881 ((2 * (mp)->m_sb.sb_sectsize) + \
882 (2 * (mp)->m_sb.sb_sectsize) + \
883 (mp)->m_sb.sb_sectsize + \
884 XFS_ALLOCFREE_LOG_RES(mp, 2) + \
885 (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
886
887#define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm)
888
889/*
890 * Clearing a bad agino number in an agi hash bucket.
891 */
892#define XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp) \
893 ((mp)->m_sb.sb_sectsize + 128)
894
895#define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi)
896
897
898/*
899 * Various log count values.
900 */
901#define XFS_DEFAULT_LOG_COUNT 1
902#define XFS_DEFAULT_PERM_LOG_COUNT 2
903#define XFS_ITRUNCATE_LOG_COUNT 2
904#define XFS_INACTIVE_LOG_COUNT 2
905#define XFS_CREATE_LOG_COUNT 2
906#define XFS_MKDIR_LOG_COUNT 3
907#define XFS_SYMLINK_LOG_COUNT 3
908#define XFS_REMOVE_LOG_COUNT 2
909#define XFS_LINK_LOG_COUNT 2
910#define XFS_RENAME_LOG_COUNT 2
911#define XFS_WRITE_LOG_COUNT 2
912#define XFS_ADDAFORK_LOG_COUNT 2
913#define XFS_ATTRINVAL_LOG_COUNT 1
914#define XFS_ATTRSET_LOG_COUNT 3
915#define XFS_ATTRRM_LOG_COUNT 3
916
917/*
918 * Here we centralize the specification of XFS meta-data buffer
919 * reference count values. This determine how hard the buffer
920 * cache tries to hold onto the buffer.
921 */
922#define XFS_AGF_REF 4
923#define XFS_AGI_REF 4
924#define XFS_AGFL_REF 3
925#define XFS_INO_BTREE_REF 3
926#define XFS_ALLOC_BTREE_REF 2
927#define XFS_BMAP_BTREE_REF 2
928#define XFS_DIR_BTREE_REF 2
929#define XFS_ATTR_BTREE_REF 1
930#define XFS_INO_REF 1
931#define XFS_DQUOT_REF 1
932
933#ifdef __KERNEL__
934/*
935 * XFS transaction mechanism exported interfaces that are
936 * actually macros.
937 */
938#define xfs_trans_get_log_res(tp) ((tp)->t_log_res)
939#define xfs_trans_get_log_count(tp) ((tp)->t_log_count)
940#define xfs_trans_get_block_res(tp) ((tp)->t_blk_res)
941#define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC)
942
943#ifdef DEBUG
944#define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (long)d)
945#define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (long)d)
946#define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (long)d)
947#else
948#define xfs_trans_agblocks_delta(tp, d)
949#define xfs_trans_agflist_delta(tp, d)
950#define xfs_trans_agbtree_delta(tp, d)
951#endif
952
953/*
954 * XFS transaction mechanism exported interfaces.
955 */
956void xfs_trans_init(struct xfs_mount *);
957xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint);
958xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint);
959xfs_trans_t *xfs_trans_dup(xfs_trans_t *);
960int xfs_trans_reserve(xfs_trans_t *, uint, uint, uint,
961 uint, uint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962void xfs_trans_mod_sb(xfs_trans_t *, uint, long);
963struct xfs_buf *xfs_trans_get_buf(xfs_trans_t *, struct xfs_buftarg *, xfs_daddr_t,
964 int, uint);
965int xfs_trans_read_buf(struct xfs_mount *, xfs_trans_t *,
966 struct xfs_buftarg *, xfs_daddr_t, int, uint,
967 struct xfs_buf **);
968struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int);
969
970void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
971void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
972void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
Tim Shimminefa092f2005-09-05 08:29:01 +1000973void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
975void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
977void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
978void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
979int xfs_trans_iget(struct xfs_mount *, xfs_trans_t *,
980 xfs_ino_t , uint, uint, struct xfs_inode **);
981void xfs_trans_ijoin(xfs_trans_t *, struct xfs_inode *, uint);
982void xfs_trans_ihold(xfs_trans_t *, struct xfs_inode *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
984void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
985struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint);
986void xfs_efi_release(struct xfs_efi_log_item *, uint);
987void xfs_trans_log_efi_extent(xfs_trans_t *,
988 struct xfs_efi_log_item *,
989 xfs_fsblock_t,
990 xfs_extlen_t);
991struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *,
992 struct xfs_efi_log_item *,
993 uint);
994void xfs_trans_log_efd_extent(xfs_trans_t *,
995 struct xfs_efd_log_item *,
996 xfs_fsblock_t,
997 xfs_extlen_t);
Christoph Hellwigf538d4d2005-11-02 10:26:59 +1100998int _xfs_trans_commit(xfs_trans_t *,
999 uint flags,
1000 xfs_lsn_t *,
1001 int *);
1002#define xfs_trans_commit(tp, flags, lsn) \
1003 _xfs_trans_commit(tp, flags, lsn, NULL)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004void xfs_trans_cancel(xfs_trans_t *, int);
1005void xfs_trans_ail_init(struct xfs_mount *);
1006xfs_lsn_t xfs_trans_push_ail(struct xfs_mount *, xfs_lsn_t);
1007xfs_lsn_t xfs_trans_tail_ail(struct xfs_mount *);
1008void xfs_trans_unlocked_item(struct xfs_mount *,
1009 xfs_log_item_t *);
1010xfs_log_busy_slot_t *xfs_trans_add_busy(xfs_trans_t *tp,
1011 xfs_agnumber_t ag,
1012 xfs_extlen_t idx);
1013
1014#endif /* __KERNEL__ */
1015
1016#endif /* __XFS_TRANS_H__ */