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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 LT |
17 | */ |
18 | #ifndef __XFS_TRANS_H__ | |
19 | #define __XFS_TRANS_H__ | |
20 | ||
7fd36c44 | 21 | /* kernel only transaction subsystem defines */ |
847fff5c BN |
22 | |
23 | struct xfs_buf; | |
24 | struct xfs_buftarg; | |
25 | struct xfs_efd_log_item; | |
26 | struct xfs_efi_log_item; | |
27 | struct xfs_inode; | |
28 | struct xfs_item_ops; | |
29 | struct xfs_log_iovec; | |
30 | struct xfs_log_item_desc; | |
31 | struct xfs_mount; | |
32 | struct xfs_trans; | |
3d3c8b52 | 33 | struct xfs_trans_res; |
847fff5c | 34 | struct xfs_dquot_acct; |
f8dbebef DW |
35 | struct xfs_rud_log_item; |
36 | struct xfs_rui_log_item; | |
9c194644 | 37 | struct xfs_btree_cur; |
f997ee21 | 38 | struct xfs_cui_log_item; |
33ba6129 DW |
39 | struct xfs_cud_log_item; |
40 | struct xfs_defer_ops; | |
77d61fe4 | 41 | struct xfs_bui_log_item; |
9f3afb57 | 42 | struct xfs_bud_log_item; |
847fff5c BN |
43 | |
44 | typedef 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 */ | |
fc1829f3 | 49 | struct xfs_ail *li_ailp; /* ptr to AIL */ |
847fff5c BN |
50 | uint li_type; /* item type */ |
51 | uint li_flags; /* misc flags */ | |
d3a304b6 | 52 | struct xfs_buf *li_buf; /* real buffer pointer */ |
847fff5c BN |
53 | struct xfs_log_item *li_bio_list; /* buffer item list */ |
54 | void (*li_cb)(struct xfs_buf *, | |
55 | struct xfs_log_item *); | |
56 | /* buffer item iodone */ | |
57 | /* callback func */ | |
272e42b2 | 58 | const struct xfs_item_ops *li_ops; /* function list */ |
71e330b5 DC |
59 | |
60 | /* delayed logging */ | |
61 | struct list_head li_cil; /* CIL pointers */ | |
62 | struct xfs_log_vec *li_lv; /* active log vector */ | |
b1c5ebb2 | 63 | struct xfs_log_vec *li_lv_shadow; /* standby vector */ |
ccf7c23f | 64 | xfs_lsn_t li_seq; /* CIL commit seq */ |
847fff5c BN |
65 | } xfs_log_item_t; |
66 | ||
67 | #define XFS_LI_IN_AIL 0x1 | |
0b80ae6e CM |
68 | #define XFS_LI_ABORTED 0x2 |
69 | #define XFS_LI_FAILED 0x4 | |
847fff5c | 70 | |
0b1b213f CH |
71 | #define XFS_LI_FLAGS \ |
72 | { XFS_LI_IN_AIL, "IN_AIL" }, \ | |
0b80ae6e CM |
73 | { XFS_LI_ABORTED, "ABORTED" }, \ |
74 | { XFS_LI_FAILED, "FAILED" } | |
0b1b213f | 75 | |
272e42b2 | 76 | struct xfs_item_ops { |
166d1368 | 77 | void (*iop_size)(xfs_log_item_t *, int *, int *); |
bde7cff6 | 78 | void (*iop_format)(xfs_log_item_t *, struct xfs_log_vec *); |
847fff5c | 79 | void (*iop_pin)(xfs_log_item_t *); |
9412e318 | 80 | void (*iop_unpin)(xfs_log_item_t *, int remove); |
43ff2122 | 81 | uint (*iop_push)(struct xfs_log_item *, struct list_head *); |
847fff5c BN |
82 | void (*iop_unlock)(xfs_log_item_t *); |
83 | xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t); | |
847fff5c | 84 | void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t); |
0b80ae6e | 85 | void (*iop_error)(xfs_log_item_t *, xfs_buf_t *); |
272e42b2 | 86 | }; |
847fff5c | 87 | |
239880ef DC |
88 | void xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item, |
89 | int type, const struct xfs_item_ops *ops); | |
90 | ||
847fff5c | 91 | /* |
904c17e6 | 92 | * Return values for the iop_push() routines. |
847fff5c | 93 | */ |
43ff2122 CH |
94 | #define XFS_ITEM_SUCCESS 0 |
95 | #define XFS_ITEM_PINNED 1 | |
96 | #define XFS_ITEM_LOCKED 2 | |
97 | #define XFS_ITEM_FLUSHING 3 | |
847fff5c | 98 | |
239880ef | 99 | |
847fff5c BN |
100 | /* |
101 | * This is the structure maintained for every active transaction. | |
102 | */ | |
103 | typedef struct xfs_trans { | |
104 | unsigned int t_magic; /* magic number */ | |
847fff5c BN |
105 | unsigned int t_log_res; /* amt of log space resvd */ |
106 | unsigned int t_log_count; /* count for perm log res */ | |
107 | unsigned int t_blk_res; /* # of blocks resvd */ | |
108 | unsigned int t_blk_res_used; /* # of resvd blocks used */ | |
109 | unsigned int t_rtx_res; /* # of rt extents resvd */ | |
110 | unsigned int t_rtx_res_used; /* # of resvd rt extents used */ | |
35a8a72f | 111 | struct xlog_ticket *t_ticket; /* log mgr ticket */ |
847fff5c BN |
112 | struct xfs_mount *t_mountp; /* ptr to fs mount struct */ |
113 | struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */ | |
847fff5c BN |
114 | unsigned int t_flags; /* misc flags */ |
115 | int64_t t_icount_delta; /* superblock icount change */ | |
116 | int64_t t_ifree_delta; /* superblock ifree change */ | |
117 | int64_t t_fdblocks_delta; /* superblock fdblocks chg */ | |
118 | int64_t t_res_fdblocks_delta; /* on-disk only chg */ | |
119 | int64_t t_frextents_delta;/* superblock freextents chg*/ | |
120 | int64_t t_res_frextents_delta; /* on-disk only chg */ | |
742ae1e3 | 121 | #if defined(DEBUG) || defined(XFS_WARN) |
847fff5c BN |
122 | int64_t t_ag_freeblks_delta; /* debugging counter */ |
123 | int64_t t_ag_flist_delta; /* debugging counter */ | |
124 | int64_t t_ag_btree_delta; /* debugging counter */ | |
125 | #endif | |
126 | int64_t t_dblocks_delta;/* superblock dblocks change */ | |
127 | int64_t t_agcount_delta;/* superblock agcount change */ | |
128 | int64_t t_imaxpct_delta;/* superblock imaxpct change */ | |
129 | int64_t t_rextsize_delta;/* superblock rextsize chg */ | |
130 | int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */ | |
131 | int64_t t_rblocks_delta;/* superblock rblocks change */ | |
132 | int64_t t_rextents_delta;/* superblocks rextents chg */ | |
133 | int64_t t_rextslog_delta;/* superblocks rextslog chg */ | |
e98c414f | 134 | struct list_head t_items; /* log item descriptors */ |
ed3b4d6c | 135 | struct list_head t_busy; /* list of busy extents */ |
847fff5c BN |
136 | unsigned long t_pflags; /* saved process flags state */ |
137 | } xfs_trans_t; | |
138 | ||
1da177e4 LT |
139 | /* |
140 | * XFS transaction mechanism exported interfaces that are | |
141 | * actually macros. | |
142 | */ | |
1da177e4 LT |
143 | #define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC) |
144 | ||
742ae1e3 | 145 | #if defined(DEBUG) || defined(XFS_WARN) |
20f4ebf2 DC |
146 | #define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d) |
147 | #define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d) | |
148 | #define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d) | |
1da177e4 LT |
149 | #else |
150 | #define xfs_trans_agblocks_delta(tp, d) | |
151 | #define xfs_trans_agflist_delta(tp, d) | |
152 | #define xfs_trans_agbtree_delta(tp, d) | |
153 | #endif | |
154 | ||
155 | /* | |
156 | * XFS transaction mechanism exported interfaces. | |
157 | */ | |
253f4911 CH |
158 | int xfs_trans_alloc(struct xfs_mount *mp, struct xfs_trans_res *resp, |
159 | uint blocks, uint rtextents, uint flags, | |
160 | struct xfs_trans **tpp); | |
e89c0413 DW |
161 | int xfs_trans_alloc_empty(struct xfs_mount *mp, |
162 | struct xfs_trans **tpp); | |
20f4ebf2 | 163 | void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t); |
de2a4f59 DC |
164 | |
165 | struct xfs_buf *xfs_trans_get_buf_map(struct xfs_trans *tp, | |
166 | struct xfs_buftarg *target, | |
167 | struct xfs_buf_map *map, int nmaps, | |
168 | uint flags); | |
169 | ||
170 | static inline struct xfs_buf * | |
171 | xfs_trans_get_buf( | |
172 | struct xfs_trans *tp, | |
173 | struct xfs_buftarg *target, | |
174 | xfs_daddr_t blkno, | |
175 | int numblks, | |
176 | uint flags) | |
177 | { | |
c3f8fc73 | 178 | DEFINE_SINGLE_BUF_MAP(map, blkno, numblks); |
de2a4f59 DC |
179 | return xfs_trans_get_buf_map(tp, target, &map, 1, flags); |
180 | } | |
181 | ||
182 | int xfs_trans_read_buf_map(struct xfs_mount *mp, | |
183 | struct xfs_trans *tp, | |
184 | struct xfs_buftarg *target, | |
185 | struct xfs_buf_map *map, int nmaps, | |
186 | xfs_buf_flags_t flags, | |
c3f8fc73 | 187 | struct xfs_buf **bpp, |
1813dd64 | 188 | const struct xfs_buf_ops *ops); |
de2a4f59 DC |
189 | |
190 | static inline int | |
191 | xfs_trans_read_buf( | |
192 | struct xfs_mount *mp, | |
193 | struct xfs_trans *tp, | |
194 | struct xfs_buftarg *target, | |
195 | xfs_daddr_t blkno, | |
196 | int numblks, | |
197 | xfs_buf_flags_t flags, | |
c3f8fc73 | 198 | struct xfs_buf **bpp, |
1813dd64 | 199 | const struct xfs_buf_ops *ops) |
de2a4f59 | 200 | { |
c3f8fc73 DC |
201 | DEFINE_SINGLE_BUF_MAP(map, blkno, numblks); |
202 | return xfs_trans_read_buf_map(mp, tp, target, &map, 1, | |
1813dd64 | 203 | flags, bpp, ops); |
de2a4f59 DC |
204 | } |
205 | ||
1da177e4 LT |
206 | struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int); |
207 | ||
208 | void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *); | |
209 | void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *); | |
210 | void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *); | |
efa092f3 | 211 | void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *); |
1da177e4 LT |
212 | void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *); |
213 | void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *); | |
1da177e4 | 214 | void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *); |
a5814bce | 215 | bool xfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *); |
1da177e4 LT |
216 | void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint); |
217 | void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *); | |
dcd79a14 | 218 | void xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int); |
ddc3415a | 219 | void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint); |
9684010d BF |
220 | void xfs_trans_log_buf(struct xfs_trans *, struct xfs_buf *, uint, |
221 | uint); | |
222 | void xfs_trans_dirty_buf(struct xfs_trans *, struct xfs_buf *); | |
1da177e4 | 223 | void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint); |
9749fee8 DW |
224 | |
225 | void xfs_extent_free_init_defer_op(void); | |
bba61cbf | 226 | struct xfs_efd_log_item *xfs_trans_get_efd(struct xfs_trans *, |
1da177e4 LT |
227 | struct xfs_efi_log_item *, |
228 | uint); | |
6bc43af3 BF |
229 | int xfs_trans_free_extent(struct xfs_trans *, |
230 | struct xfs_efd_log_item *, xfs_fsblock_t, | |
340785cc | 231 | xfs_extlen_t, struct xfs_owner_info *); |
70393313 | 232 | int xfs_trans_commit(struct xfs_trans *); |
411350df CH |
233 | int xfs_trans_roll(struct xfs_trans **); |
234 | int xfs_trans_roll_inode(struct xfs_trans **, struct xfs_inode *); | |
4906e215 | 235 | void xfs_trans_cancel(xfs_trans_t *); |
249a8c11 DC |
236 | int xfs_trans_ail_init(struct xfs_mount *); |
237 | void xfs_trans_ail_destroy(struct xfs_mount *); | |
1da177e4 | 238 | |
a4fbe6ab DC |
239 | void xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *, |
240 | enum xfs_blft); | |
241 | void xfs_trans_buf_copy_type(struct xfs_buf *dst_bp, | |
242 | struct xfs_buf *src_bp); | |
243 | ||
a8272ce0 | 244 | extern kmem_zone_t *xfs_trans_zone; |
e98c414f | 245 | extern kmem_zone_t *xfs_log_item_desc_zone; |
a8272ce0 | 246 | |
f8dbebef | 247 | /* rmap updates */ |
9e88b5d8 DW |
248 | enum xfs_rmap_intent_type; |
249 | ||
f8dbebef | 250 | void xfs_rmap_update_init_defer_op(void); |
9e88b5d8 | 251 | struct xfs_rud_log_item *xfs_trans_get_rud(struct xfs_trans *tp, |
722e2517 | 252 | struct xfs_rui_log_item *ruip); |
9e88b5d8 DW |
253 | int xfs_trans_log_finish_rmap_update(struct xfs_trans *tp, |
254 | struct xfs_rud_log_item *rudp, enum xfs_rmap_intent_type type, | |
c8ce540d | 255 | uint64_t owner, int whichfork, xfs_fileoff_t startoff, |
9e88b5d8 | 256 | xfs_fsblock_t startblock, xfs_filblks_t blockcount, |
9c194644 | 257 | xfs_exntst_t state, struct xfs_btree_cur **pcur); |
9e88b5d8 | 258 | |
f997ee21 DW |
259 | /* refcount updates */ |
260 | enum xfs_refcount_intent_type; | |
261 | ||
33ba6129 | 262 | void xfs_refcount_update_init_defer_op(void); |
f997ee21 DW |
263 | struct xfs_cud_log_item *xfs_trans_get_cud(struct xfs_trans *tp, |
264 | struct xfs_cui_log_item *cuip); | |
265 | int xfs_trans_log_finish_refcount_update(struct xfs_trans *tp, | |
33ba6129 | 266 | struct xfs_cud_log_item *cudp, struct xfs_defer_ops *dfops, |
f997ee21 | 267 | enum xfs_refcount_intent_type type, xfs_fsblock_t startblock, |
33ba6129 DW |
268 | xfs_extlen_t blockcount, xfs_fsblock_t *new_fsb, |
269 | xfs_extlen_t *new_len, struct xfs_btree_cur **pcur); | |
f997ee21 | 270 | |
77d61fe4 DW |
271 | /* mapping updates */ |
272 | enum xfs_bmap_intent_type; | |
273 | ||
274 | void xfs_bmap_update_init_defer_op(void); | |
275 | struct xfs_bud_log_item *xfs_trans_get_bud(struct xfs_trans *tp, | |
276 | struct xfs_bui_log_item *buip); | |
277 | int xfs_trans_log_finish_bmap_update(struct xfs_trans *tp, | |
278 | struct xfs_bud_log_item *rudp, struct xfs_defer_ops *dfops, | |
279 | enum xfs_bmap_intent_type type, struct xfs_inode *ip, | |
280 | int whichfork, xfs_fileoff_t startoff, xfs_fsblock_t startblock, | |
e1a4e37c | 281 | xfs_filblks_t *blockcount, xfs_exntst_t state); |
77d61fe4 | 282 | |
1da177e4 | 283 | #endif /* __XFS_TRANS_H__ */ |