Commit | Line | Data |
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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 | ||
847fff5c BN |
21 | struct xfs_log_item; |
22 | ||
7fd36c44 | 23 | #include "xfs_trans_resv.h" |
1da177e4 | 24 | |
7fd36c44 | 25 | /* kernel only transaction subsystem defines */ |
847fff5c BN |
26 | |
27 | struct xfs_buf; | |
28 | struct xfs_buftarg; | |
29 | struct xfs_efd_log_item; | |
30 | struct xfs_efi_log_item; | |
31 | struct xfs_inode; | |
32 | struct xfs_item_ops; | |
33 | struct xfs_log_iovec; | |
34 | struct xfs_log_item_desc; | |
35 | struct xfs_mount; | |
36 | struct xfs_trans; | |
3d3c8b52 | 37 | struct xfs_trans_res; |
847fff5c | 38 | struct xfs_dquot_acct; |
ed3b4d6c | 39 | struct xfs_busy_extent; |
847fff5c BN |
40 | |
41 | typedef struct xfs_log_item { | |
42 | struct list_head li_ail; /* AIL pointers */ | |
43 | xfs_lsn_t li_lsn; /* last on-disk lsn */ | |
44 | struct xfs_log_item_desc *li_desc; /* ptr to current desc*/ | |
45 | struct xfs_mount *li_mountp; /* ptr to fs mount */ | |
fc1829f3 | 46 | struct xfs_ail *li_ailp; /* ptr to AIL */ |
847fff5c BN |
47 | uint li_type; /* item type */ |
48 | uint li_flags; /* misc flags */ | |
49 | struct xfs_log_item *li_bio_list; /* buffer item list */ | |
50 | void (*li_cb)(struct xfs_buf *, | |
51 | struct xfs_log_item *); | |
52 | /* buffer item iodone */ | |
53 | /* callback func */ | |
272e42b2 | 54 | const struct xfs_item_ops *li_ops; /* function list */ |
71e330b5 DC |
55 | |
56 | /* delayed logging */ | |
57 | struct list_head li_cil; /* CIL pointers */ | |
58 | struct xfs_log_vec *li_lv; /* active log vector */ | |
ccf7c23f | 59 | xfs_lsn_t li_seq; /* CIL commit seq */ |
847fff5c BN |
60 | } xfs_log_item_t; |
61 | ||
62 | #define XFS_LI_IN_AIL 0x1 | |
63 | #define XFS_LI_ABORTED 0x2 | |
64 | ||
0b1b213f CH |
65 | #define XFS_LI_FLAGS \ |
66 | { XFS_LI_IN_AIL, "IN_AIL" }, \ | |
67 | { XFS_LI_ABORTED, "ABORTED" } | |
68 | ||
272e42b2 | 69 | struct xfs_item_ops { |
847fff5c BN |
70 | uint (*iop_size)(xfs_log_item_t *); |
71 | void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *); | |
72 | void (*iop_pin)(xfs_log_item_t *); | |
9412e318 | 73 | void (*iop_unpin)(xfs_log_item_t *, int remove); |
43ff2122 | 74 | uint (*iop_push)(struct xfs_log_item *, struct list_head *); |
847fff5c BN |
75 | void (*iop_unlock)(xfs_log_item_t *); |
76 | xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t); | |
847fff5c | 77 | void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t); |
272e42b2 | 78 | }; |
847fff5c BN |
79 | |
80 | #define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip) | |
81 | #define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp) | |
82 | #define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip) | |
9412e318 | 83 | #define IOP_UNPIN(ip, remove) (*(ip)->li_ops->iop_unpin)(ip, remove) |
43ff2122 | 84 | #define IOP_PUSH(ip, list) (*(ip)->li_ops->iop_push)(ip, list) |
847fff5c BN |
85 | #define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip) |
86 | #define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn) | |
847fff5c BN |
87 | #define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn) |
88 | ||
89 | /* | |
43ff2122 | 90 | * Return values for the IOP_PUSH() routines. |
847fff5c | 91 | */ |
43ff2122 CH |
92 | #define XFS_ITEM_SUCCESS 0 |
93 | #define XFS_ITEM_PINNED 1 | |
94 | #define XFS_ITEM_LOCKED 2 | |
95 | #define XFS_ITEM_FLUSHING 3 | |
847fff5c | 96 | |
847fff5c BN |
97 | /* |
98 | * This is the type of function which can be given to xfs_trans_callback() | |
99 | * to be called upon the transaction's commit to disk. | |
100 | */ | |
101 | typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *); | |
102 | ||
103 | /* | |
104 | * This is the structure maintained for every active transaction. | |
105 | */ | |
106 | typedef struct xfs_trans { | |
107 | unsigned int t_magic; /* magic number */ | |
108 | xfs_log_callback_t t_logcb; /* log callback struct */ | |
109 | unsigned int t_type; /* transaction type */ | |
110 | unsigned int t_log_res; /* amt of log space resvd */ | |
111 | unsigned int t_log_count; /* count for perm log res */ | |
112 | unsigned int t_blk_res; /* # of blocks resvd */ | |
113 | unsigned int t_blk_res_used; /* # of resvd blocks used */ | |
114 | unsigned int t_rtx_res; /* # of rt extents resvd */ | |
115 | unsigned int t_rtx_res_used; /* # of resvd rt extents used */ | |
35a8a72f | 116 | struct xlog_ticket *t_ticket; /* log mgr ticket */ |
847fff5c BN |
117 | xfs_lsn_t t_lsn; /* log seq num of start of |
118 | * transaction. */ | |
119 | xfs_lsn_t t_commit_lsn; /* log seq num of end of | |
120 | * transaction. */ | |
121 | struct xfs_mount *t_mountp; /* ptr to fs mount struct */ | |
122 | struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */ | |
847fff5c BN |
123 | unsigned int t_flags; /* misc flags */ |
124 | int64_t t_icount_delta; /* superblock icount change */ | |
125 | int64_t t_ifree_delta; /* superblock ifree change */ | |
126 | int64_t t_fdblocks_delta; /* superblock fdblocks chg */ | |
127 | int64_t t_res_fdblocks_delta; /* on-disk only chg */ | |
128 | int64_t t_frextents_delta;/* superblock freextents chg*/ | |
129 | int64_t t_res_frextents_delta; /* on-disk only chg */ | |
742ae1e3 | 130 | #if defined(DEBUG) || defined(XFS_WARN) |
847fff5c BN |
131 | int64_t t_ag_freeblks_delta; /* debugging counter */ |
132 | int64_t t_ag_flist_delta; /* debugging counter */ | |
133 | int64_t t_ag_btree_delta; /* debugging counter */ | |
134 | #endif | |
135 | int64_t t_dblocks_delta;/* superblock dblocks change */ | |
136 | int64_t t_agcount_delta;/* superblock agcount change */ | |
137 | int64_t t_imaxpct_delta;/* superblock imaxpct change */ | |
138 | int64_t t_rextsize_delta;/* superblock rextsize chg */ | |
139 | int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */ | |
140 | int64_t t_rblocks_delta;/* superblock rblocks change */ | |
141 | int64_t t_rextents_delta;/* superblocks rextents chg */ | |
142 | int64_t t_rextslog_delta;/* superblocks rextslog chg */ | |
e98c414f | 143 | struct list_head t_items; /* log item descriptors */ |
847fff5c | 144 | xfs_trans_header_t t_header; /* header for in-log trans */ |
ed3b4d6c | 145 | struct list_head t_busy; /* list of busy extents */ |
847fff5c BN |
146 | unsigned long t_pflags; /* saved process flags state */ |
147 | } xfs_trans_t; | |
148 | ||
1da177e4 LT |
149 | /* |
150 | * XFS transaction mechanism exported interfaces that are | |
151 | * actually macros. | |
152 | */ | |
153 | #define xfs_trans_get_log_res(tp) ((tp)->t_log_res) | |
154 | #define xfs_trans_get_log_count(tp) ((tp)->t_log_count) | |
155 | #define xfs_trans_get_block_res(tp) ((tp)->t_blk_res) | |
156 | #define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC) | |
157 | ||
742ae1e3 | 158 | #if defined(DEBUG) || defined(XFS_WARN) |
20f4ebf2 DC |
159 | #define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d) |
160 | #define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d) | |
161 | #define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d) | |
1da177e4 LT |
162 | #else |
163 | #define xfs_trans_agblocks_delta(tp, d) | |
164 | #define xfs_trans_agflist_delta(tp, d) | |
165 | #define xfs_trans_agbtree_delta(tp, d) | |
166 | #endif | |
167 | ||
168 | /* | |
169 | * XFS transaction mechanism exported interfaces. | |
170 | */ | |
1da177e4 | 171 | xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint); |
77ba7877 | 172 | xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, xfs_km_flags_t); |
1da177e4 | 173 | xfs_trans_t *xfs_trans_dup(xfs_trans_t *); |
3d3c8b52 | 174 | int xfs_trans_reserve(struct xfs_trans *, struct xfs_trans_res *, |
1da177e4 | 175 | uint, uint); |
20f4ebf2 | 176 | void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t); |
de2a4f59 DC |
177 | |
178 | struct xfs_buf *xfs_trans_get_buf_map(struct xfs_trans *tp, | |
179 | struct xfs_buftarg *target, | |
180 | struct xfs_buf_map *map, int nmaps, | |
181 | uint flags); | |
182 | ||
183 | static inline struct xfs_buf * | |
184 | xfs_trans_get_buf( | |
185 | struct xfs_trans *tp, | |
186 | struct xfs_buftarg *target, | |
187 | xfs_daddr_t blkno, | |
188 | int numblks, | |
189 | uint flags) | |
190 | { | |
c3f8fc73 | 191 | DEFINE_SINGLE_BUF_MAP(map, blkno, numblks); |
de2a4f59 DC |
192 | return xfs_trans_get_buf_map(tp, target, &map, 1, flags); |
193 | } | |
194 | ||
195 | int xfs_trans_read_buf_map(struct xfs_mount *mp, | |
196 | struct xfs_trans *tp, | |
197 | struct xfs_buftarg *target, | |
198 | struct xfs_buf_map *map, int nmaps, | |
199 | xfs_buf_flags_t flags, | |
c3f8fc73 | 200 | struct xfs_buf **bpp, |
1813dd64 | 201 | const struct xfs_buf_ops *ops); |
de2a4f59 DC |
202 | |
203 | static inline int | |
204 | xfs_trans_read_buf( | |
205 | struct xfs_mount *mp, | |
206 | struct xfs_trans *tp, | |
207 | struct xfs_buftarg *target, | |
208 | xfs_daddr_t blkno, | |
209 | int numblks, | |
210 | xfs_buf_flags_t flags, | |
c3f8fc73 | 211 | struct xfs_buf **bpp, |
1813dd64 | 212 | const struct xfs_buf_ops *ops) |
de2a4f59 | 213 | { |
c3f8fc73 DC |
214 | DEFINE_SINGLE_BUF_MAP(map, blkno, numblks); |
215 | return xfs_trans_read_buf_map(mp, tp, target, &map, 1, | |
1813dd64 | 216 | flags, bpp, ops); |
de2a4f59 DC |
217 | } |
218 | ||
1da177e4 LT |
219 | struct xfs_buf *xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int); |
220 | ||
221 | void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *); | |
222 | void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *); | |
223 | void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *); | |
efa092f3 | 224 | void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *); |
1da177e4 LT |
225 | void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *); |
226 | void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *); | |
1da177e4 | 227 | void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *); |
5f6bed76 | 228 | void xfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *); |
1da177e4 LT |
229 | void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint); |
230 | void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *); | |
dcd79a14 | 231 | void xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int); |
ddc3415a | 232 | void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint); |
1da177e4 LT |
233 | void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint); |
234 | void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint); | |
235 | struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint); | |
236 | void xfs_efi_release(struct xfs_efi_log_item *, uint); | |
237 | void xfs_trans_log_efi_extent(xfs_trans_t *, | |
238 | struct xfs_efi_log_item *, | |
239 | xfs_fsblock_t, | |
240 | xfs_extlen_t); | |
241 | struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *, | |
242 | struct xfs_efi_log_item *, | |
243 | uint); | |
244 | void xfs_trans_log_efd_extent(xfs_trans_t *, | |
245 | struct xfs_efd_log_item *, | |
246 | xfs_fsblock_t, | |
247 | xfs_extlen_t); | |
b1037058 | 248 | int xfs_trans_commit(xfs_trans_t *, uint flags); |
1da177e4 | 249 | void xfs_trans_cancel(xfs_trans_t *, int); |
249a8c11 DC |
250 | int xfs_trans_ail_init(struct xfs_mount *); |
251 | void xfs_trans_ail_destroy(struct xfs_mount *); | |
1da177e4 | 252 | |
a8272ce0 | 253 | extern kmem_zone_t *xfs_trans_zone; |
e98c414f | 254 | extern kmem_zone_t *xfs_log_item_desc_zone; |
a8272ce0 | 255 | |
1da177e4 | 256 | #endif /* __XFS_TRANS_H__ */ |