2 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
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
7 * published by the Free Software Foundation.
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.
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
18 #ifndef __XFS_TRANS_H__
19 #define __XFS_TRANS_H__
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.
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().
30 typedef 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 */
37 #define XFS_TRANS_HEADER_MAGIC 0x5452414e /* TRAN */
42 #define XFS_LI_EFI 0x1236
43 #define XFS_LI_EFD 0x1237
44 #define XFS_LI_IUNLINK 0x1238
45 #define XFS_LI_INODE 0x123b /* aligned ino chunks, var-size ibufs */
46 #define XFS_LI_BUF 0x123c /* v2 bufs, variable sized inode bufs */
47 #define XFS_LI_DQUOT 0x123d
48 #define XFS_LI_QUOTAOFF 0x123e
51 * Transaction types. Used to distinguish types of buffers.
53 #define XFS_TRANS_SETATTR_NOT_SIZE 1
54 #define XFS_TRANS_SETATTR_SIZE 2
55 #define XFS_TRANS_INACTIVE 3
56 #define XFS_TRANS_CREATE 4
57 #define XFS_TRANS_CREATE_TRUNC 5
58 #define XFS_TRANS_TRUNCATE_FILE 6
59 #define XFS_TRANS_REMOVE 7
60 #define XFS_TRANS_LINK 8
61 #define XFS_TRANS_RENAME 9
62 #define XFS_TRANS_MKDIR 10
63 #define XFS_TRANS_RMDIR 11
64 #define XFS_TRANS_SYMLINK 12
65 #define XFS_TRANS_SET_DMATTRS 13
66 #define XFS_TRANS_GROWFS 14
67 #define XFS_TRANS_STRAT_WRITE 15
68 #define XFS_TRANS_DIOSTRAT 16
69 #define XFS_TRANS_WRITE_SYNC 17
70 #define XFS_TRANS_WRITEID 18
71 #define XFS_TRANS_ADDAFORK 19
72 #define XFS_TRANS_ATTRINVAL 20
73 #define XFS_TRANS_ATRUNCATE 21
74 #define XFS_TRANS_ATTR_SET 22
75 #define XFS_TRANS_ATTR_RM 23
76 #define XFS_TRANS_ATTR_FLAG 24
77 #define XFS_TRANS_CLEAR_AGI_BUCKET 25
78 #define XFS_TRANS_QM_SBCHANGE 26
80 * Dummy entries since we use the transaction type to index into the
81 * trans_type[] in xlog_recover_print_trans_head()
83 #define XFS_TRANS_DUMMY1 27
84 #define XFS_TRANS_DUMMY2 28
85 #define XFS_TRANS_QM_QUOTAOFF 29
86 #define XFS_TRANS_QM_DQALLOC 30
87 #define XFS_TRANS_QM_SETQLIM 31
88 #define XFS_TRANS_QM_DQCLUSTER 32
89 #define XFS_TRANS_QM_QINOCREATE 33
90 #define XFS_TRANS_QM_QUOTAOFF_END 34
91 #define XFS_TRANS_SB_UNIT 35
92 #define XFS_TRANS_FSYNC_TS 36
93 #define XFS_TRANS_GROWFSRT_ALLOC 37
94 #define XFS_TRANS_GROWFSRT_ZERO 38
95 #define XFS_TRANS_GROWFSRT_FREE 39
96 #define XFS_TRANS_SWAPEXT 40
97 #define XFS_TRANS_TYPE_MAX 40
98 /* new transaction types need to be reflected in xfs_logprint(8) */
104 struct xfs_efd_log_item;
105 struct xfs_efi_log_item;
108 struct xfs_log_iovec;
110 struct xfs_log_item_desc;
113 struct xfs_dquot_acct;
115 typedef struct xfs_ail_entry {
116 struct xfs_log_item *ail_forw; /* AIL forw pointer */
117 struct xfs_log_item *ail_back; /* AIL back pointer */
120 typedef struct xfs_log_item {
121 xfs_ail_entry_t li_ail; /* AIL pointers */
122 xfs_lsn_t li_lsn; /* last on-disk lsn */
123 struct xfs_log_item_desc *li_desc; /* ptr to current desc*/
124 struct xfs_mount *li_mountp; /* ptr to fs mount */
125 uint li_type; /* item type */
126 uint li_flags; /* misc flags */
127 struct xfs_log_item *li_bio_list; /* buffer item list */
128 void (*li_cb)(struct xfs_buf *,
129 struct xfs_log_item *);
130 /* buffer item iodone */
132 struct xfs_item_ops *li_ops; /* function list */
135 #define XFS_LI_IN_AIL 0x1
136 #define XFS_LI_ABORTED 0x2
138 typedef struct xfs_item_ops {
139 uint (*iop_size)(xfs_log_item_t *);
140 void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *);
141 void (*iop_pin)(xfs_log_item_t *);
142 void (*iop_unpin)(xfs_log_item_t *, int);
143 void (*iop_unpin_remove)(xfs_log_item_t *, struct xfs_trans *);
144 uint (*iop_trylock)(xfs_log_item_t *);
145 void (*iop_unlock)(xfs_log_item_t *);
146 xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
147 void (*iop_push)(xfs_log_item_t *);
148 void (*iop_pushbuf)(xfs_log_item_t *);
149 void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
152 #define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip)
153 #define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp)
154 #define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip)
155 #define IOP_UNPIN(ip, flags) (*(ip)->li_ops->iop_unpin)(ip, flags)
156 #define IOP_UNPIN_REMOVE(ip,tp) (*(ip)->li_ops->iop_unpin_remove)(ip, tp)
157 #define IOP_TRYLOCK(ip) (*(ip)->li_ops->iop_trylock)(ip)
158 #define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip)
159 #define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn)
160 #define IOP_PUSH(ip) (*(ip)->li_ops->iop_push)(ip)
161 #define IOP_PUSHBUF(ip) (*(ip)->li_ops->iop_pushbuf)(ip)
162 #define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn)
165 * Return values for the IOP_TRYLOCK() routines.
167 #define XFS_ITEM_SUCCESS 0
168 #define XFS_ITEM_PINNED 1
169 #define XFS_ITEM_LOCKED 2
170 #define XFS_ITEM_FLUSHING 3
171 #define XFS_ITEM_PUSHBUF 4
173 #endif /* __KERNEL__ */
176 * This structure is used to track log items associated with
177 * a transaction. It points to the log item and keeps some
178 * flags to track the state of the log item. It also tracks
179 * the amount of space needed to log the item it describes
180 * once we get to commit processing (see xfs_trans_commit()).
182 typedef struct xfs_log_item_desc {
183 xfs_log_item_t *lid_item;
185 unsigned char lid_flags;
186 unsigned char lid_index;
187 } xfs_log_item_desc_t;
189 #define XFS_LID_DIRTY 0x1
190 #define XFS_LID_PINNED 0x2
191 #define XFS_LID_BUF_STALE 0x8
194 * This structure is used to maintain a chunk list of log_item_desc
195 * structures. The free field is a bitmask indicating which descriptors
196 * in this chunk's array are free. The unused field is the first value
197 * not used since this chunk was allocated.
199 #define XFS_LIC_NUM_SLOTS 15
200 typedef struct xfs_log_item_chunk {
201 struct xfs_log_item_chunk *lic_next;
204 xfs_log_item_desc_t lic_descs[XFS_LIC_NUM_SLOTS];
205 } xfs_log_item_chunk_t;
207 #define XFS_LIC_MAX_SLOT (XFS_LIC_NUM_SLOTS - 1)
208 #define XFS_LIC_FREEMASK ((1 << XFS_LIC_NUM_SLOTS) - 1)
212 * Initialize the given chunk. Set the chunk's free descriptor mask
213 * to indicate that all descriptors are free. The caller gets to set
214 * lic_unused to the right value (0 matches all free). The
215 * lic_descs.lid_index values are set up as each desc is allocated.
217 #define XFS_LIC_INIT(cp) xfs_lic_init(cp)
218 static inline void xfs_lic_init(xfs_log_item_chunk_t *cp)
220 cp->lic_free = XFS_LIC_FREEMASK;
223 #define XFS_LIC_INIT_SLOT(cp,slot) xfs_lic_init_slot(cp, slot)
224 static inline void xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot)
226 cp->lic_descs[slot].lid_index = (unsigned char)(slot);
229 #define XFS_LIC_VACANCY(cp) xfs_lic_vacancy(cp)
230 static inline int xfs_lic_vacancy(xfs_log_item_chunk_t *cp)
232 return cp->lic_free & XFS_LIC_FREEMASK;
235 #define XFS_LIC_ALL_FREE(cp) xfs_lic_all_free(cp)
236 static inline void xfs_lic_all_free(xfs_log_item_chunk_t *cp)
238 cp->lic_free = XFS_LIC_FREEMASK;
241 #define XFS_LIC_ARE_ALL_FREE(cp) xfs_lic_are_all_free(cp)
242 static inline int xfs_lic_are_all_free(xfs_log_item_chunk_t *cp)
244 return ((cp->lic_free & XFS_LIC_FREEMASK) == XFS_LIC_FREEMASK);
247 #define XFS_LIC_ISFREE(cp,slot) xfs_lic_isfree(cp,slot)
248 static inline int xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot)
250 return (cp->lic_free & (1 << slot));
253 #define XFS_LIC_CLAIM(cp,slot) xfs_lic_claim(cp,slot)
254 static inline void xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot)
256 cp->lic_free &= ~(1 << slot);
259 #define XFS_LIC_RELSE(cp,slot) xfs_lic_relse(cp,slot)
260 static inline void xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot)
262 cp->lic_free |= 1 << slot;
265 #define XFS_LIC_SLOT(cp,slot) xfs_lic_slot(cp,slot)
266 static inline xfs_log_item_desc_t *
267 xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot)
269 return &(cp->lic_descs[slot]);
272 #define XFS_LIC_DESC_TO_SLOT(dp) xfs_lic_desc_to_slot(dp)
273 static inline int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp)
275 return (uint)dp->lid_index;
279 * Calculate the address of a chunk given a descriptor pointer:
280 * dp - dp->lid_index give the address of the start of the lic_descs array.
281 * From this we subtract the offset of the lic_descs field in a chunk.
282 * All of this yields the address of the chunk, which is
283 * cast to a chunk pointer.
285 #define XFS_LIC_DESC_TO_CHUNK(dp) xfs_lic_desc_to_chunk(dp)
286 static inline xfs_log_item_chunk_t *
287 xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp)
289 return (xfs_log_item_chunk_t*) \
290 (((xfs_caddr_t)((dp) - (dp)->lid_index)) - \
291 (xfs_caddr_t)(((xfs_log_item_chunk_t*)0)->lic_descs));
296 * This structure is used to maintain a list of block ranges that have been
297 * freed in the transaction. The ranges are listed in the perag[] busy list
298 * between when they're freed and the transaction is committed to disk.
301 typedef struct xfs_log_busy_slot {
302 xfs_agnumber_t lbc_ag;
303 ushort lbc_idx; /* index in perag.busy[] */
304 } xfs_log_busy_slot_t;
306 #define XFS_LBC_NUM_SLOTS 31
307 typedef struct xfs_log_busy_chunk {
308 struct xfs_log_busy_chunk *lbc_next;
309 uint lbc_free; /* free slots bitmask */
310 ushort lbc_unused; /* first unused */
311 xfs_log_busy_slot_t lbc_busy[XFS_LBC_NUM_SLOTS];
312 } xfs_log_busy_chunk_t;
314 #define XFS_LBC_MAX_SLOT (XFS_LBC_NUM_SLOTS - 1)
315 #define XFS_LBC_FREEMASK ((1U << XFS_LBC_NUM_SLOTS) - 1)
317 #define XFS_LBC_INIT(cp) ((cp)->lbc_free = XFS_LBC_FREEMASK)
318 #define XFS_LBC_CLAIM(cp, slot) ((cp)->lbc_free &= ~(1 << (slot)))
319 #define XFS_LBC_SLOT(cp, slot) (&((cp)->lbc_busy[(slot)]))
320 #define XFS_LBC_VACANCY(cp) (((cp)->lbc_free) & XFS_LBC_FREEMASK)
321 #define XFS_LBC_ISFREE(cp, slot) ((cp)->lbc_free & (1 << (slot)))
324 * This is the type of function which can be given to xfs_trans_callback()
325 * to be called upon the transaction's commit to disk.
327 typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *);
330 * This is the structure maintained for every active transaction.
332 typedef struct xfs_trans {
333 unsigned int t_magic; /* magic number */
334 xfs_log_callback_t t_logcb; /* log callback struct */
335 unsigned int t_type; /* transaction type */
336 unsigned int t_log_res; /* amt of log space resvd */
337 unsigned int t_log_count; /* count for perm log res */
338 unsigned int t_blk_res; /* # of blocks resvd */
339 unsigned int t_blk_res_used; /* # of resvd blocks used */
340 unsigned int t_rtx_res; /* # of rt extents resvd */
341 unsigned int t_rtx_res_used; /* # of resvd rt extents used */
342 xfs_log_ticket_t t_ticket; /* log mgr ticket */
343 sema_t t_sema; /* sema for commit completion */
344 xfs_lsn_t t_lsn; /* log seq num of start of
346 xfs_lsn_t t_commit_lsn; /* log seq num of end of
348 struct xfs_mount *t_mountp; /* ptr to fs mount struct */
349 struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */
350 xfs_trans_callback_t t_callback; /* transaction callback */
351 void *t_callarg; /* callback arg */
352 unsigned int t_flags; /* misc flags */
353 int64_t t_icount_delta; /* superblock icount change */
354 int64_t t_ifree_delta; /* superblock ifree change */
355 int64_t t_fdblocks_delta; /* superblock fdblocks chg */
356 int64_t t_res_fdblocks_delta; /* on-disk only chg */
357 int64_t t_frextents_delta;/* superblock freextents chg*/
358 int64_t t_res_frextents_delta; /* on-disk only chg */
360 int64_t t_ag_freeblks_delta; /* debugging counter */
361 int64_t t_ag_flist_delta; /* debugging counter */
362 int64_t t_ag_btree_delta; /* debugging counter */
364 int64_t t_dblocks_delta;/* superblock dblocks change */
365 int64_t t_agcount_delta;/* superblock agcount change */
366 int64_t t_imaxpct_delta;/* superblock imaxpct change */
367 int64_t t_rextsize_delta;/* superblock rextsize chg */
368 int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */
369 int64_t t_rblocks_delta;/* superblock rblocks change */
370 int64_t t_rextents_delta;/* superblocks rextents chg */
371 int64_t t_rextslog_delta;/* superblocks rextslog chg */
372 unsigned int t_items_free; /* log item descs free */
373 xfs_log_item_chunk_t t_items; /* first log item desc chunk */
374 xfs_trans_header_t t_header; /* header for in-log trans */
375 unsigned int t_busy_free; /* busy descs free */
376 xfs_log_busy_chunk_t t_busy; /* busy/async free blocks */
377 unsigned long t_pflags; /* saved process flags state */
380 #endif /* __KERNEL__ */
383 #define XFS_TRANS_MAGIC 0x5452414E /* 'TRAN' */
385 * Values for t_flags.
387 #define XFS_TRANS_DIRTY 0x01 /* something needs to be logged */
388 #define XFS_TRANS_SB_DIRTY 0x02 /* superblock is modified */
389 #define XFS_TRANS_PERM_LOG_RES 0x04 /* xact took a permanent log res */
390 #define XFS_TRANS_SYNC 0x08 /* make commit synchronous */
391 #define XFS_TRANS_DQ_DIRTY 0x10 /* at least one dquot in trx dirty */
392 #define XFS_TRANS_RESERVE 0x20 /* OK to use reserved data blocks */
395 * Values for call flags parameter.
397 #define XFS_TRANS_NOSLEEP 0x1
398 #define XFS_TRANS_WAIT 0x2
399 #define XFS_TRANS_RELEASE_LOG_RES 0x4
400 #define XFS_TRANS_ABORT 0x8
403 * Field values for xfs_trans_mod_sb.
405 #define XFS_TRANS_SB_ICOUNT 0x00000001
406 #define XFS_TRANS_SB_IFREE 0x00000002
407 #define XFS_TRANS_SB_FDBLOCKS 0x00000004
408 #define XFS_TRANS_SB_RES_FDBLOCKS 0x00000008
409 #define XFS_TRANS_SB_FREXTENTS 0x00000010
410 #define XFS_TRANS_SB_RES_FREXTENTS 0x00000020
411 #define XFS_TRANS_SB_DBLOCKS 0x00000040
412 #define XFS_TRANS_SB_AGCOUNT 0x00000080
413 #define XFS_TRANS_SB_IMAXPCT 0x00000100
414 #define XFS_TRANS_SB_REXTSIZE 0x00000200
415 #define XFS_TRANS_SB_RBMBLOCKS 0x00000400
416 #define XFS_TRANS_SB_RBLOCKS 0x00000800
417 #define XFS_TRANS_SB_REXTENTS 0x00001000
418 #define XFS_TRANS_SB_REXTSLOG 0x00002000
422 * Various log reservation values.
423 * These are based on the size of the file system block
424 * because that is what most transactions manipulate.
425 * Each adds in an additional 128 bytes per item logged to
426 * try to account for the overhead of the transaction mechanism.
429 * Most of the reservations underestimate the number of allocation
430 * groups into which they could free extents in the xfs_bmap_finish()
431 * call. This is because the number in the worst case is quite high
432 * and quite unusual. In order to fix this we need to change
433 * xfs_bmap_finish() to free extents in only a single AG at a time.
434 * This will require changes to the EFI code as well, however, so that
435 * the EFI for the extents not freed is logged again in each transaction.
440 * Per-extent log reservation for the allocation btree changes
441 * involved in freeing or allocating an extent.
442 * 2 trees * (2 blocks/level * max depth - 1) * block size
444 #define XFS_ALLOCFREE_LOG_RES(mp,nx) \
445 ((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1)))
446 #define XFS_ALLOCFREE_LOG_COUNT(mp,nx) \
447 ((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1)))
450 * Per-directory log reservation for any directory change.
451 * dir blocks: (1 btree block per level + data block + free block) * dblock size
452 * bmap btree: (levels + 2) * max depth * block size
453 * v2 directory blocks can be fragmented below the dirblksize down to the fsb
454 * size, so account for that in the DAENTER macros.
456 #define XFS_DIROP_LOG_RES(mp) \
457 (XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \
458 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)))
459 #define XFS_DIROP_LOG_COUNT(mp) \
460 (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \
461 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)
464 * In a write transaction we can allocate a maximum of 2
465 * extents. This gives:
466 * the inode getting the new extents: inode size
467 * the inode\'s bmap btree: max depth * block size
468 * the agfs of the ags from which the extents are allocated: 2 * sector
469 * the superblock free block counter: sector size
470 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
471 * And the bmap_finish transaction can free bmap blocks in a join:
472 * the agfs of the ags containing the blocks: 2 * sector size
473 * the agfls of the ags containing the blocks: 2 * sector size
474 * the super block free block counter: sector size
475 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
477 #define XFS_CALC_WRITE_LOG_RES(mp) \
479 ((mp)->m_sb.sb_inodesize + \
480 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \
481 (2 * (mp)->m_sb.sb_sectsize) + \
482 (mp)->m_sb.sb_sectsize + \
483 XFS_ALLOCFREE_LOG_RES(mp, 2) + \
484 (128 * (4 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))),\
485 ((2 * (mp)->m_sb.sb_sectsize) + \
486 (2 * (mp)->m_sb.sb_sectsize) + \
487 (mp)->m_sb.sb_sectsize + \
488 XFS_ALLOCFREE_LOG_RES(mp, 2) + \
489 (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
491 #define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write)
494 * In truncating a file we free up to two extents at once. We can modify:
495 * the inode being truncated: inode size
496 * the inode\'s bmap btree: (max depth + 1) * block size
497 * And the bmap_finish transaction can free the blocks and bmap blocks:
498 * the agf for each of the ags: 4 * sector size
499 * the agfl for each of the ags: 4 * sector size
500 * the super block to reflect the freed blocks: sector size
501 * worst case split in allocation btrees per extent assuming 4 extents:
502 * 4 exts * 2 trees * (2 * max depth - 1) * block size
503 * the inode btree: max depth * blocksize
504 * the allocation btrees: 2 trees * (max depth - 1) * block size
506 #define XFS_CALC_ITRUNCATE_LOG_RES(mp) \
508 ((mp)->m_sb.sb_inodesize + \
509 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + 1) + \
510 (128 * (2 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \
511 ((4 * (mp)->m_sb.sb_sectsize) + \
512 (4 * (mp)->m_sb.sb_sectsize) + \
513 (mp)->m_sb.sb_sectsize + \
514 XFS_ALLOCFREE_LOG_RES(mp, 4) + \
515 (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))) + \
517 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
518 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
519 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
521 #define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate)
524 * In renaming a files we can modify:
525 * the four inodes involved: 4 * inode size
526 * the two directory btrees: 2 * (max depth + v2) * dir block size
527 * the two directory bmap btrees: 2 * max depth * block size
528 * And the bmap_finish transaction can free dir and bmap blocks (two sets
529 * of bmap blocks) giving:
530 * the agf for the ags in which the blocks live: 3 * sector size
531 * the agfl for the ags in which the blocks live: 3 * sector size
532 * the superblock for the free block count: sector size
533 * the allocation btrees: 3 exts * 2 trees * (2 * max depth - 1) * block size
535 #define XFS_CALC_RENAME_LOG_RES(mp) \
537 ((4 * (mp)->m_sb.sb_inodesize) + \
538 (2 * XFS_DIROP_LOG_RES(mp)) + \
539 (128 * (4 + 2 * XFS_DIROP_LOG_COUNT(mp)))), \
540 ((3 * (mp)->m_sb.sb_sectsize) + \
541 (3 * (mp)->m_sb.sb_sectsize) + \
542 (mp)->m_sb.sb_sectsize + \
543 XFS_ALLOCFREE_LOG_RES(mp, 3) + \
544 (128 * (7 + XFS_ALLOCFREE_LOG_COUNT(mp, 3))))))
546 #define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename)
549 * For creating a link to an inode:
550 * the parent directory inode: inode size
551 * the linked inode: inode size
552 * the directory btree could split: (max depth + v2) * dir block size
553 * the directory bmap btree could join or split: (max depth + v2) * blocksize
554 * And the bmap_finish transaction can free some bmap blocks giving:
555 * the agf for the ag in which the blocks live: sector size
556 * the agfl for the ag in which the blocks live: sector size
557 * the superblock for the free block count: sector size
558 * the allocation btrees: 2 trees * (2 * max depth - 1) * block size
560 #define XFS_CALC_LINK_LOG_RES(mp) \
562 ((mp)->m_sb.sb_inodesize + \
563 (mp)->m_sb.sb_inodesize + \
564 XFS_DIROP_LOG_RES(mp) + \
565 (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \
566 ((mp)->m_sb.sb_sectsize + \
567 (mp)->m_sb.sb_sectsize + \
568 (mp)->m_sb.sb_sectsize + \
569 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
570 (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
572 #define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link)
575 * For removing a directory entry we can modify:
576 * the parent directory inode: inode size
577 * the removed inode: inode size
578 * the directory btree could join: (max depth + v2) * dir block size
579 * the directory bmap btree could join or split: (max depth + v2) * blocksize
580 * And the bmap_finish transaction can free the dir and bmap blocks giving:
581 * the agf for the ag in which the blocks live: 2 * sector size
582 * the agfl for the ag in which the blocks live: 2 * sector size
583 * the superblock for the free block count: sector size
584 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
586 #define XFS_CALC_REMOVE_LOG_RES(mp) \
588 ((mp)->m_sb.sb_inodesize + \
589 (mp)->m_sb.sb_inodesize + \
590 XFS_DIROP_LOG_RES(mp) + \
591 (128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \
592 ((2 * (mp)->m_sb.sb_sectsize) + \
593 (2 * (mp)->m_sb.sb_sectsize) + \
594 (mp)->m_sb.sb_sectsize + \
595 XFS_ALLOCFREE_LOG_RES(mp, 2) + \
596 (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
598 #define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove)
601 * For symlink we can modify:
602 * the parent directory inode: inode size
603 * the new inode: inode size
604 * the inode btree entry: 1 block
605 * the directory btree: (max depth + v2) * dir block size
606 * the directory inode\'s bmap btree: (max depth + v2) * block size
607 * the blocks for the symlink: 1 KB
608 * Or in the first xact we allocate some inodes giving:
609 * the agi and agf of the ag getting the new inodes: 2 * sectorsize
610 * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
611 * the inode btree: max depth * blocksize
612 * the allocation btrees: 2 trees * (2 * max depth - 1) * block size
614 #define XFS_CALC_SYMLINK_LOG_RES(mp) \
616 ((mp)->m_sb.sb_inodesize + \
617 (mp)->m_sb.sb_inodesize + \
618 XFS_FSB_TO_B(mp, 1) + \
619 XFS_DIROP_LOG_RES(mp) + \
621 (128 * (4 + XFS_DIROP_LOG_COUNT(mp)))), \
622 (2 * (mp)->m_sb.sb_sectsize + \
623 XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \
624 XFS_FSB_TO_B((mp), XFS_IN_MAXLEVELS(mp)) + \
625 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
626 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
627 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
629 #define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink)
632 * For create we can modify:
633 * the parent directory inode: inode size
634 * the new inode: inode size
635 * the inode btree entry: block size
636 * the superblock for the nlink flag: sector size
637 * the directory btree: (max depth + v2) * dir block size
638 * the directory inode\'s bmap btree: (max depth + v2) * block size
639 * Or in the first xact we allocate some inodes giving:
640 * the agi and agf of the ag getting the new inodes: 2 * sectorsize
641 * the superblock for the nlink flag: sector size
642 * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
643 * the inode btree: max depth * blocksize
644 * the allocation btrees: 2 trees * (max depth - 1) * block size
646 #define XFS_CALC_CREATE_LOG_RES(mp) \
648 ((mp)->m_sb.sb_inodesize + \
649 (mp)->m_sb.sb_inodesize + \
650 (mp)->m_sb.sb_sectsize + \
651 XFS_FSB_TO_B(mp, 1) + \
652 XFS_DIROP_LOG_RES(mp) + \
653 (128 * (3 + XFS_DIROP_LOG_COUNT(mp)))), \
654 (3 * (mp)->m_sb.sb_sectsize + \
655 XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \
656 XFS_FSB_TO_B((mp), XFS_IN_MAXLEVELS(mp)) + \
657 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
658 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
659 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
661 #define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create)
664 * Making a new directory is the same as creating a new file.
666 #define XFS_CALC_MKDIR_LOG_RES(mp) XFS_CALC_CREATE_LOG_RES(mp)
668 #define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir)
671 * In freeing an inode we can modify:
672 * the inode being freed: inode size
673 * the super block free inode counter: sector size
674 * the agi hash list and counters: sector size
675 * the inode btree entry: block size
676 * the on disk inode before ours in the agi hash list: inode cluster size
677 * the inode btree: max depth * blocksize
678 * the allocation btrees: 2 trees * (max depth - 1) * block size
680 #define XFS_CALC_IFREE_LOG_RES(mp) \
681 ((mp)->m_sb.sb_inodesize + \
682 (mp)->m_sb.sb_sectsize + \
683 (mp)->m_sb.sb_sectsize + \
684 XFS_FSB_TO_B((mp), 1) + \
685 MAX((__uint16_t)XFS_FSB_TO_B((mp), 1), XFS_INODE_CLUSTER_SIZE(mp)) + \
687 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
688 (128 * (2 + XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp) + \
689 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
692 #define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree)
695 * When only changing the inode we log the inode and possibly the superblock
696 * We also add a bit of slop for the transaction stuff.
698 #define XFS_CALC_ICHANGE_LOG_RES(mp) ((mp)->m_sb.sb_inodesize + \
699 (mp)->m_sb.sb_sectsize + 512)
701 #define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange)
704 * Growing the data section of the filesystem.
709 #define XFS_CALC_GROWDATA_LOG_RES(mp) \
710 ((mp)->m_sb.sb_sectsize * 3 + \
711 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
712 (128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
714 #define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata)
717 * Growing the rt section of the filesystem.
718 * In the first set of transactions (ALLOC) we allocate space to the
719 * bitmap or summary files.
720 * superblock: sector size
721 * agf of the ag from which the extent is allocated: sector size
722 * bmap btree for bitmap/summary inode: max depth * blocksize
723 * bitmap/summary inode: inode size
724 * allocation btrees for 1 block alloc: 2 * (2 * maxdepth - 1) * blocksize
726 #define XFS_CALC_GROWRTALLOC_LOG_RES(mp) \
727 (2 * (mp)->m_sb.sb_sectsize + \
728 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \
729 (mp)->m_sb.sb_inodesize + \
730 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
732 (3 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + \
733 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
735 #define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc)
738 * Growing the rt section of the filesystem.
739 * In the second set of transactions (ZERO) we zero the new metadata blocks.
740 * one bitmap/summary block: blocksize
742 #define XFS_CALC_GROWRTZERO_LOG_RES(mp) \
743 ((mp)->m_sb.sb_blocksize + 128)
745 #define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero)
748 * Growing the rt section of the filesystem.
749 * In the third set of transactions (FREE) we update metadata without
750 * allocating any new blocks.
751 * superblock: sector size
752 * bitmap inode: inode size
753 * summary inode: inode size
754 * one bitmap block: blocksize
755 * summary blocks: new summary size
757 #define XFS_CALC_GROWRTFREE_LOG_RES(mp) \
758 ((mp)->m_sb.sb_sectsize + \
759 2 * (mp)->m_sb.sb_inodesize + \
760 (mp)->m_sb.sb_blocksize + \
764 #define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree)
767 * Logging the inode modification timestamp on a synchronous write.
770 #define XFS_CALC_SWRITE_LOG_RES(mp) \
771 ((mp)->m_sb.sb_inodesize + 128)
773 #define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
776 * Logging the inode timestamps on an fsync -- same as SWRITE
777 * as long as SWRITE logs the entire inode core
779 #define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
782 * Logging the inode mode bits when writing a setuid/setgid file
785 #define XFS_CALC_WRITEID_LOG_RES(mp) \
786 ((mp)->m_sb.sb_inodesize + 128)
788 #define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
791 * Converting the inode from non-attributed to attributed.
792 * the inode being converted: inode size
793 * agf block and superblock (for block allocation)
794 * the new block (directory sized)
795 * bmap blocks for the new directory block
798 #define XFS_CALC_ADDAFORK_LOG_RES(mp) \
799 ((mp)->m_sb.sb_inodesize + \
800 (mp)->m_sb.sb_sectsize * 2 + \
801 (mp)->m_dirblksize + \
802 XFS_FSB_TO_B(mp, (XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1)) + \
803 XFS_ALLOCFREE_LOG_RES(mp, 1) + \
804 (128 * (4 + (XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1) + \
805 XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
807 #define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork)
810 * Removing the attribute fork of a file
811 * the inode being truncated: inode size
812 * the inode\'s bmap btree: max depth * block size
813 * And the bmap_finish transaction can free the blocks and bmap blocks:
814 * the agf for each of the ags: 4 * sector size
815 * the agfl for each of the ags: 4 * sector size
816 * the super block to reflect the freed blocks: sector size
817 * worst case split in allocation btrees per extent assuming 4 extents:
818 * 4 exts * 2 trees * (2 * max depth - 1) * block size
820 #define XFS_CALC_ATTRINVAL_LOG_RES(mp) \
822 ((mp)->m_sb.sb_inodesize + \
823 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \
824 (128 * (1 + XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))), \
825 ((4 * (mp)->m_sb.sb_sectsize) + \
826 (4 * (mp)->m_sb.sb_sectsize) + \
827 (mp)->m_sb.sb_sectsize + \
828 XFS_ALLOCFREE_LOG_RES(mp, 4) + \
829 (128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))))))
831 #define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval)
834 * Setting an attribute.
835 * the inode getting the attribute
836 * the superblock for allocations
837 * the agfs extents are allocated from
838 * the attribute btree * max depth
839 * the inode allocation btree
840 * Since attribute transaction space is dependent on the size of the attribute,
841 * the calculation is done partially at mount time and partially at runtime.
843 #define XFS_CALC_ATTRSET_LOG_RES(mp) \
844 ((mp)->m_sb.sb_inodesize + \
845 (mp)->m_sb.sb_sectsize + \
846 XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \
847 (128 * (2 + XFS_DA_NODE_MAXDEPTH)))
849 #define XFS_ATTRSET_LOG_RES(mp, ext) \
850 ((mp)->m_reservations.tr_attrset + \
851 (ext * (mp)->m_sb.sb_sectsize) + \
852 (ext * XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))) + \
853 (128 * (ext + (ext * XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))))
856 * Removing an attribute.
857 * the inode: inode size
858 * the attribute btree could join: max depth * block size
859 * the inode bmap btree could join or split: max depth * block size
860 * And the bmap_finish transaction can free the attr blocks freed giving:
861 * the agf for the ag in which the blocks live: 2 * sector size
862 * the agfl for the ag in which the blocks live: 2 * sector size
863 * the superblock for the free block count: sector size
864 * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
866 #define XFS_CALC_ATTRRM_LOG_RES(mp) \
868 ((mp)->m_sb.sb_inodesize + \
869 XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \
870 XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \
871 (128 * (1 + XFS_DA_NODE_MAXDEPTH + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \
872 ((2 * (mp)->m_sb.sb_sectsize) + \
873 (2 * (mp)->m_sb.sb_sectsize) + \
874 (mp)->m_sb.sb_sectsize + \
875 XFS_ALLOCFREE_LOG_RES(mp, 2) + \
876 (128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
878 #define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm)
881 * Clearing a bad agino number in an agi hash bucket.
883 #define XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp) \
884 ((mp)->m_sb.sb_sectsize + 128)
886 #define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi)
890 * Various log count values.
892 #define XFS_DEFAULT_LOG_COUNT 1
893 #define XFS_DEFAULT_PERM_LOG_COUNT 2
894 #define XFS_ITRUNCATE_LOG_COUNT 2
895 #define XFS_INACTIVE_LOG_COUNT 2
896 #define XFS_CREATE_LOG_COUNT 2
897 #define XFS_MKDIR_LOG_COUNT 3
898 #define XFS_SYMLINK_LOG_COUNT 3
899 #define XFS_REMOVE_LOG_COUNT 2
900 #define XFS_LINK_LOG_COUNT 2
901 #define XFS_RENAME_LOG_COUNT 2
902 #define XFS_WRITE_LOG_COUNT 2
903 #define XFS_ADDAFORK_LOG_COUNT 2
904 #define XFS_ATTRINVAL_LOG_COUNT 1
905 #define XFS_ATTRSET_LOG_COUNT 3
906 #define XFS_ATTRRM_LOG_COUNT 3
909 * Here we centralize the specification of XFS meta-data buffer
910 * reference count values. This determine how hard the buffer
911 * cache tries to hold onto the buffer.
913 #define XFS_AGF_REF 4
914 #define XFS_AGI_REF 4
915 #define XFS_AGFL_REF 3
916 #define XFS_INO_BTREE_REF 3
917 #define XFS_ALLOC_BTREE_REF 2
918 #define XFS_BMAP_BTREE_REF 2
919 #define XFS_DIR_BTREE_REF 2
920 #define XFS_ATTR_BTREE_REF 1
921 #define XFS_INO_REF 1
922 #define XFS_DQUOT_REF 1
926 * XFS transaction mechanism exported interfaces that are
929 #define xfs_trans_get_log_res(tp) ((tp)->t_log_res)
930 #define xfs_trans_get_log_count(tp) ((tp)->t_log_count)
931 #define xfs_trans_get_block_res(tp) ((tp)->t_blk_res)
932 #define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC)
935 #define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d)
936 #define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d)
937 #define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d)
939 #define xfs_trans_agblocks_delta(tp, d)
940 #define xfs_trans_agflist_delta(tp, d)
941 #define xfs_trans_agbtree_delta(tp, d)
945 * XFS transaction mechanism exported interfaces.
947 void xfs_trans_init(struct xfs_mount *);
948 xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint);
949 xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint);
950 xfs_trans_t *xfs_trans_dup(xfs_trans_t *);
951 int xfs_trans_reserve(xfs_trans_t *, uint, uint, uint,
953 void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
954 struct xfs_buf *xfs_trans_get_buf(xfs_trans_t *, struct xfs_buftarg *, xfs_daddr_t,
956 int xfs_trans_read_buf(struct xfs_mount *, xfs_trans_t *,
957 struct xfs_buftarg *, xfs_daddr_t, int, uint,
959 struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int);
961 void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
962 void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
963 void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
964 void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
965 void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
966 void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
967 void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
968 void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
969 void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
970 int xfs_trans_iget(struct xfs_mount *, xfs_trans_t *,
971 xfs_ino_t , uint, uint, struct xfs_inode **);
972 void xfs_trans_ijoin(xfs_trans_t *, struct xfs_inode *, uint);
973 void xfs_trans_ihold(xfs_trans_t *, struct xfs_inode *);
974 void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
975 void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
976 struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint);
977 void xfs_efi_release(struct xfs_efi_log_item *, uint);
978 void xfs_trans_log_efi_extent(xfs_trans_t *,
979 struct xfs_efi_log_item *,
982 struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *,
983 struct xfs_efi_log_item *,
985 void xfs_trans_log_efd_extent(xfs_trans_t *,
986 struct xfs_efd_log_item *,
989 int _xfs_trans_commit(xfs_trans_t *,
992 #define xfs_trans_commit(tp, flags) _xfs_trans_commit(tp, flags, NULL)
993 void xfs_trans_cancel(xfs_trans_t *, int);
994 void xfs_trans_ail_init(struct xfs_mount *);
995 xfs_lsn_t xfs_trans_push_ail(struct xfs_mount *, xfs_lsn_t);
996 xfs_lsn_t xfs_trans_tail_ail(struct xfs_mount *);
997 void xfs_trans_unlocked_item(struct xfs_mount *,
999 xfs_log_busy_slot_t *xfs_trans_add_busy(xfs_trans_t *tp,
1003 #endif /* __KERNEL__ */
1005 #endif /* __XFS_TRANS_H__ */