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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
Dave Chinner7fd36c42013-08-12 20:49:32 +100021/* kernel only transaction subsystem defines */
Barry Naujok847fff52008-10-30 17:05:38 +110022
23struct xfs_buf;
24struct xfs_buftarg;
25struct xfs_efd_log_item;
26struct xfs_efi_log_item;
27struct xfs_inode;
28struct xfs_item_ops;
29struct xfs_log_iovec;
30struct xfs_log_item_desc;
31struct xfs_mount;
32struct xfs_trans;
Jie Liu3d3c8b52013-08-12 20:49:59 +100033struct xfs_trans_res;
Barry Naujok847fff52008-10-30 17:05:38 +110034struct xfs_dquot_acct;
Darrick J. Wongf8dbebe2016-08-03 12:11:01 +100035struct xfs_rud_log_item;
36struct xfs_rui_log_item;
Darrick J. Wong9c194642016-08-03 12:16:05 +100037struct xfs_btree_cur;
Darrick J. Wongf997ee22016-10-03 09:11:21 -070038struct xfs_cui_log_item;
Darrick J. Wong33ba61292016-10-03 09:11:22 -070039struct xfs_cud_log_item;
40struct xfs_defer_ops;
Darrick J. Wong77d61fe2016-10-03 09:11:26 -070041struct xfs_bui_log_item;
Darrick J. Wong9f3afb52016-10-03 09:11:28 -070042struct xfs_bud_log_item;
Barry Naujok847fff52008-10-30 17:05:38 +110043
44typedef struct xfs_log_item {
45 struct list_head li_ail; /* AIL pointers */
46 xfs_lsn_t li_lsn; /* last on-disk lsn */
47 struct xfs_log_item_desc *li_desc; /* ptr to current desc*/
48 struct xfs_mount *li_mountp; /* ptr to fs mount */
David Chinnerfc1829f2008-10-30 17:39:46 +110049 struct xfs_ail *li_ailp; /* ptr to AIL */
Barry Naujok847fff52008-10-30 17:05:38 +110050 uint li_type; /* item type */
51 uint li_flags; /* misc flags */
52 struct xfs_log_item *li_bio_list; /* buffer item list */
53 void (*li_cb)(struct xfs_buf *,
54 struct xfs_log_item *);
55 /* buffer item iodone */
56 /* callback func */
Christoph Hellwig272e42b2011-10-28 09:54:24 +000057 const struct xfs_item_ops *li_ops; /* function list */
Dave Chinner71e330b2010-05-21 14:37:18 +100058
59 /* delayed logging */
60 struct list_head li_cil; /* CIL pointers */
61 struct xfs_log_vec *li_lv; /* active log vector */
Dave Chinnerb1c5ebb2016-07-22 09:52:35 +100062 struct xfs_log_vec *li_lv_shadow; /* standby vector */
Dave Chinnerccf7c232010-05-20 23:19:42 +100063 xfs_lsn_t li_seq; /* CIL commit seq */
Barry Naujok847fff52008-10-30 17:05:38 +110064} xfs_log_item_t;
65
66#define XFS_LI_IN_AIL 0x1
67#define XFS_LI_ABORTED 0x2
68
Christoph Hellwig0b1b2132009-12-14 23:14:59 +000069#define XFS_LI_FLAGS \
70 { XFS_LI_IN_AIL, "IN_AIL" }, \
71 { XFS_LI_ABORTED, "ABORTED" }
72
Christoph Hellwig272e42b2011-10-28 09:54:24 +000073struct xfs_item_ops {
Dave Chinner166d1362013-08-12 20:50:04 +100074 void (*iop_size)(xfs_log_item_t *, int *, int *);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +110075 void (*iop_format)(xfs_log_item_t *, struct xfs_log_vec *);
Barry Naujok847fff52008-10-30 17:05:38 +110076 void (*iop_pin)(xfs_log_item_t *);
Christoph Hellwig9412e312010-06-23 18:11:15 +100077 void (*iop_unpin)(xfs_log_item_t *, int remove);
Christoph Hellwig43ff2122012-04-23 15:58:39 +100078 uint (*iop_push)(struct xfs_log_item *, struct list_head *);
Barry Naujok847fff52008-10-30 17:05:38 +110079 void (*iop_unlock)(xfs_log_item_t *);
80 xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
Barry Naujok847fff52008-10-30 17:05:38 +110081 void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
Christoph Hellwig272e42b2011-10-28 09:54:24 +000082};
Barry Naujok847fff52008-10-30 17:05:38 +110083
Dave Chinner239880e2013-10-23 10:50:10 +110084void xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item,
85 int type, const struct xfs_item_ops *ops);
86
Barry Naujok847fff52008-10-30 17:05:38 +110087/*
Dave Chinner904c17e2013-08-28 21:12:03 +100088 * Return values for the iop_push() routines.
Barry Naujok847fff52008-10-30 17:05:38 +110089 */
Christoph Hellwig43ff2122012-04-23 15:58:39 +100090#define XFS_ITEM_SUCCESS 0
91#define XFS_ITEM_PINNED 1
92#define XFS_ITEM_LOCKED 2
93#define XFS_ITEM_FLUSHING 3
Barry Naujok847fff52008-10-30 17:05:38 +110094
Dave Chinner239880e2013-10-23 10:50:10 +110095
Barry Naujok847fff52008-10-30 17:05:38 +110096/*
Barry Naujok847fff52008-10-30 17:05:38 +110097 * This is the structure maintained for every active transaction.
98 */
99typedef struct xfs_trans {
100 unsigned int t_magic; /* magic number */
Barry Naujok847fff52008-10-30 17:05:38 +1100101 unsigned int t_log_res; /* amt of log space resvd */
102 unsigned int t_log_count; /* count for perm log res */
103 unsigned int t_blk_res; /* # of blocks resvd */
104 unsigned int t_blk_res_used; /* # of resvd blocks used */
105 unsigned int t_rtx_res; /* # of rt extents resvd */
106 unsigned int t_rtx_res_used; /* # of resvd rt extents used */
Christoph Hellwig35a8a722010-02-15 23:34:54 +0000107 struct xlog_ticket *t_ticket; /* log mgr ticket */
Barry Naujok847fff52008-10-30 17:05:38 +1100108 struct xfs_mount *t_mountp; /* ptr to fs mount struct */
109 struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */
Barry Naujok847fff52008-10-30 17:05:38 +1100110 unsigned int t_flags; /* misc flags */
111 int64_t t_icount_delta; /* superblock icount change */
112 int64_t t_ifree_delta; /* superblock ifree change */
113 int64_t t_fdblocks_delta; /* superblock fdblocks chg */
114 int64_t t_res_fdblocks_delta; /* on-disk only chg */
115 int64_t t_frextents_delta;/* superblock freextents chg*/
116 int64_t t_res_frextents_delta; /* on-disk only chg */
Dave Chinner742ae1e2013-04-30 21:39:34 +1000117#if defined(DEBUG) || defined(XFS_WARN)
Barry Naujok847fff52008-10-30 17:05:38 +1100118 int64_t t_ag_freeblks_delta; /* debugging counter */
119 int64_t t_ag_flist_delta; /* debugging counter */
120 int64_t t_ag_btree_delta; /* debugging counter */
121#endif
122 int64_t t_dblocks_delta;/* superblock dblocks change */
123 int64_t t_agcount_delta;/* superblock agcount change */
124 int64_t t_imaxpct_delta;/* superblock imaxpct change */
125 int64_t t_rextsize_delta;/* superblock rextsize chg */
126 int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */
127 int64_t t_rblocks_delta;/* superblock rblocks change */
128 int64_t t_rextents_delta;/* superblocks rextents chg */
129 int64_t t_rextslog_delta;/* superblocks rextslog chg */
Christoph Hellwige98c4142010-06-23 18:11:15 +1000130 struct list_head t_items; /* log item descriptors */
Dave Chinnered3b4d62010-05-21 12:07:08 +1000131 struct list_head t_busy; /* list of busy extents */
Barry Naujok847fff52008-10-30 17:05:38 +1100132 unsigned long t_pflags; /* saved process flags state */
133} xfs_trans_t;
134
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135/*
136 * XFS transaction mechanism exported interfaces that are
137 * actually macros.
138 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139#define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC)
140
Dave Chinner742ae1e2013-04-30 21:39:34 +1000141#if defined(DEBUG) || defined(XFS_WARN)
David Chinner20f4ebf2007-02-10 18:36:10 +1100142#define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d)
143#define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d)
144#define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145#else
146#define xfs_trans_agblocks_delta(tp, d)
147#define xfs_trans_agflist_delta(tp, d)
148#define xfs_trans_agbtree_delta(tp, d)
149#endif
150
151/*
152 * XFS transaction mechanism exported interfaces.
153 */
Christoph Hellwig253f4912016-04-06 09:19:55 +1000154int xfs_trans_alloc(struct xfs_mount *mp, struct xfs_trans_res *resp,
155 uint blocks, uint rtextents, uint flags,
156 struct xfs_trans **tpp);
Darrick J. Wonge89c0412017-03-28 14:56:37 -0700157int xfs_trans_alloc_empty(struct xfs_mount *mp,
158 struct xfs_trans **tpp);
David Chinner20f4ebf2007-02-10 18:36:10 +1100159void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
Dave Chinnerde2a4f52012-06-22 18:50:11 +1000160
161struct xfs_buf *xfs_trans_get_buf_map(struct xfs_trans *tp,
162 struct xfs_buftarg *target,
163 struct xfs_buf_map *map, int nmaps,
164 uint flags);
165
166static inline struct xfs_buf *
167xfs_trans_get_buf(
168 struct xfs_trans *tp,
169 struct xfs_buftarg *target,
170 xfs_daddr_t blkno,
171 int numblks,
172 uint flags)
173{
Dave Chinnerc3f8fc72012-11-12 22:54:01 +1100174 DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
Dave Chinnerde2a4f52012-06-22 18:50:11 +1000175 return xfs_trans_get_buf_map(tp, target, &map, 1, flags);
176}
177
178int xfs_trans_read_buf_map(struct xfs_mount *mp,
179 struct xfs_trans *tp,
180 struct xfs_buftarg *target,
181 struct xfs_buf_map *map, int nmaps,
182 xfs_buf_flags_t flags,
Dave Chinnerc3f8fc72012-11-12 22:54:01 +1100183 struct xfs_buf **bpp,
Dave Chinner1813dd62012-11-14 17:54:40 +1100184 const struct xfs_buf_ops *ops);
Dave Chinnerde2a4f52012-06-22 18:50:11 +1000185
186static inline int
187xfs_trans_read_buf(
188 struct xfs_mount *mp,
189 struct xfs_trans *tp,
190 struct xfs_buftarg *target,
191 xfs_daddr_t blkno,
192 int numblks,
193 xfs_buf_flags_t flags,
Dave Chinnerc3f8fc72012-11-12 22:54:01 +1100194 struct xfs_buf **bpp,
Dave Chinner1813dd62012-11-14 17:54:40 +1100195 const struct xfs_buf_ops *ops)
Dave Chinnerde2a4f52012-06-22 18:50:11 +1000196{
Dave Chinnerc3f8fc72012-11-12 22:54:01 +1100197 DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
198 return xfs_trans_read_buf_map(mp, tp, target, &map, 1,
Dave Chinner1813dd62012-11-14 17:54:40 +1100199 flags, bpp, ops);
Dave Chinnerde2a4f52012-06-22 18:50:11 +1000200}
201
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int);
203
204void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
205void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
206void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
Tim Shimminefa092f2005-09-05 08:29:01 +1000207void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
209void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
Dave Chinner5f6bed72013-06-27 16:04:52 +1000211void xfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
213void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
Dave Chinnerdcd79a12010-09-28 12:27:25 +1000214void xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
Christoph Hellwigddc34152011-09-19 15:00:54 +0000215void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
217void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
Darrick J. Wong9749fee2016-08-03 11:14:35 +1000218
219void xfs_extent_free_init_defer_op(void);
Darrick J. Wongbba61cb2016-08-03 11:13:47 +1000220struct xfs_efd_log_item *xfs_trans_get_efd(struct xfs_trans *,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221 struct xfs_efi_log_item *,
222 uint);
Brian Foster6bc43af2015-08-19 09:51:43 +1000223int xfs_trans_free_extent(struct xfs_trans *,
224 struct xfs_efd_log_item *, xfs_fsblock_t,
Darrick J. Wong340785c2016-08-03 11:33:42 +1000225 xfs_extlen_t, struct xfs_owner_info *);
Christoph Hellwig70393312015-06-04 13:48:08 +1000226int xfs_trans_commit(struct xfs_trans *);
Dave Chinner239880e2013-10-23 10:50:10 +1100227int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
Christoph Hellwig4906e212015-06-04 13:47:56 +1000228void xfs_trans_cancel(xfs_trans_t *);
David Chinner249a8c12008-02-05 12:13:32 +1100229int xfs_trans_ail_init(struct xfs_mount *);
230void xfs_trans_ail_destroy(struct xfs_mount *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231
Dave Chinnera4fbe6a2013-10-23 10:51:50 +1100232void xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *,
233 enum xfs_blft);
234void xfs_trans_buf_copy_type(struct xfs_buf *dst_bp,
235 struct xfs_buf *src_bp);
236
David Chinnera8272ce2007-11-23 16:28:09 +1100237extern kmem_zone_t *xfs_trans_zone;
Christoph Hellwige98c4142010-06-23 18:11:15 +1000238extern kmem_zone_t *xfs_log_item_desc_zone;
David Chinnera8272ce2007-11-23 16:28:09 +1100239
Darrick J. Wongf8dbebe2016-08-03 12:11:01 +1000240/* rmap updates */
Darrick J. Wong9e88b5d2016-08-03 12:09:48 +1000241enum xfs_rmap_intent_type;
242
Darrick J. Wongf8dbebe2016-08-03 12:11:01 +1000243void xfs_rmap_update_init_defer_op(void);
Darrick J. Wong9e88b5d2016-08-03 12:09:48 +1000244struct xfs_rud_log_item *xfs_trans_get_rud(struct xfs_trans *tp,
Darrick J. Wong722e2512016-08-03 12:28:43 +1000245 struct xfs_rui_log_item *ruip);
Darrick J. Wong9e88b5d2016-08-03 12:09:48 +1000246int xfs_trans_log_finish_rmap_update(struct xfs_trans *tp,
247 struct xfs_rud_log_item *rudp, enum xfs_rmap_intent_type type,
Darrick J. Wongc8ce5402017-06-16 11:00:05 -0700248 uint64_t owner, int whichfork, xfs_fileoff_t startoff,
Darrick J. Wong9e88b5d2016-08-03 12:09:48 +1000249 xfs_fsblock_t startblock, xfs_filblks_t blockcount,
Darrick J. Wong9c194642016-08-03 12:16:05 +1000250 xfs_exntst_t state, struct xfs_btree_cur **pcur);
Darrick J. Wong9e88b5d2016-08-03 12:09:48 +1000251
Darrick J. Wongf997ee22016-10-03 09:11:21 -0700252/* refcount updates */
253enum xfs_refcount_intent_type;
254
Darrick J. Wong33ba61292016-10-03 09:11:22 -0700255void xfs_refcount_update_init_defer_op(void);
Darrick J. Wongf997ee22016-10-03 09:11:21 -0700256struct xfs_cud_log_item *xfs_trans_get_cud(struct xfs_trans *tp,
257 struct xfs_cui_log_item *cuip);
258int xfs_trans_log_finish_refcount_update(struct xfs_trans *tp,
Darrick J. Wong33ba61292016-10-03 09:11:22 -0700259 struct xfs_cud_log_item *cudp, struct xfs_defer_ops *dfops,
Darrick J. Wongf997ee22016-10-03 09:11:21 -0700260 enum xfs_refcount_intent_type type, xfs_fsblock_t startblock,
Darrick J. Wong33ba61292016-10-03 09:11:22 -0700261 xfs_extlen_t blockcount, xfs_fsblock_t *new_fsb,
262 xfs_extlen_t *new_len, struct xfs_btree_cur **pcur);
Darrick J. Wongf997ee22016-10-03 09:11:21 -0700263
Darrick J. Wong77d61fe2016-10-03 09:11:26 -0700264/* mapping updates */
265enum xfs_bmap_intent_type;
266
267void xfs_bmap_update_init_defer_op(void);
268struct xfs_bud_log_item *xfs_trans_get_bud(struct xfs_trans *tp,
269 struct xfs_bui_log_item *buip);
270int xfs_trans_log_finish_bmap_update(struct xfs_trans *tp,
271 struct xfs_bud_log_item *rudp, struct xfs_defer_ops *dfops,
272 enum xfs_bmap_intent_type type, struct xfs_inode *ip,
273 int whichfork, xfs_fileoff_t startoff, xfs_fsblock_t startblock,
Darrick J. Wonge1a4e372017-06-14 21:25:57 -0700274 xfs_filblks_t *blockcount, xfs_exntst_t state);
Darrick J. Wong77d61fe2016-10-03 09:11:26 -0700275
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276#endif /* __XFS_TRANS_H__ */