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1/*
2 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
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.
8 *
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.
13 *
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
17 */
18#ifndef __XFS_TRANS_H__
19#define __XFS_TRANS_H__
20
21/* kernel only transaction subsystem defines */
22
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;
33struct xfs_trans_res;
34struct xfs_dquot_acct;
35struct xfs_busy_extent;
36
37typedef struct xfs_log_item {
38 struct list_head li_ail; /* AIL pointers */
39 xfs_lsn_t li_lsn; /* last on-disk lsn */
40 struct xfs_log_item_desc *li_desc; /* ptr to current desc*/
41 struct xfs_mount *li_mountp; /* ptr to fs mount */
42 struct xfs_ail *li_ailp; /* ptr to AIL */
43 uint li_type; /* item type */
44 uint li_flags; /* misc flags */
45 struct xfs_log_item *li_bio_list; /* buffer item list */
46 void (*li_cb)(struct xfs_buf *,
47 struct xfs_log_item *);
48 /* buffer item iodone */
49 /* callback func */
50 const struct xfs_item_ops *li_ops; /* function list */
51
52 /* delayed logging */
53 struct list_head li_cil; /* CIL pointers */
54 struct xfs_log_vec *li_lv; /* active log vector */
55 xfs_lsn_t li_seq; /* CIL commit seq */
56} xfs_log_item_t;
57
58#define XFS_LI_IN_AIL 0x1
59#define XFS_LI_ABORTED 0x2
60
61#define XFS_LI_FLAGS \
62 { XFS_LI_IN_AIL, "IN_AIL" }, \
63 { XFS_LI_ABORTED, "ABORTED" }
64
65struct xfs_item_ops {
66 void (*iop_size)(xfs_log_item_t *, int *, int *);
67 void (*iop_format)(xfs_log_item_t *, struct xfs_log_vec *);
68 void (*iop_pin)(xfs_log_item_t *);
69 void (*iop_unpin)(xfs_log_item_t *, int remove);
70 uint (*iop_push)(struct xfs_log_item *, struct list_head *);
71 void (*iop_unlock)(xfs_log_item_t *);
72 xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
73 void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
74};
75
76void xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item,
77 int type, const struct xfs_item_ops *ops);
78
79/*
80 * Return values for the iop_push() routines.
81 */
82#define XFS_ITEM_SUCCESS 0
83#define XFS_ITEM_PINNED 1
84#define XFS_ITEM_LOCKED 2
85#define XFS_ITEM_FLUSHING 3
86
87
88/*
89 * This is the structure maintained for every active transaction.
90 */
91typedef struct xfs_trans {
92 unsigned int t_magic; /* magic number */
93 unsigned int t_type; /* transaction type */
94 unsigned int t_log_res; /* amt of log space resvd */
95 unsigned int t_log_count; /* count for perm log res */
96 unsigned int t_blk_res; /* # of blocks resvd */
97 unsigned int t_blk_res_used; /* # of resvd blocks used */
98 unsigned int t_rtx_res; /* # of rt extents resvd */
99 unsigned int t_rtx_res_used; /* # of resvd rt extents used */
100 struct xlog_ticket *t_ticket; /* log mgr ticket */
101 xfs_lsn_t t_lsn; /* log seq num of start of
102 * transaction. */
103 xfs_lsn_t t_commit_lsn; /* log seq num of end of
104 * transaction. */
105 struct xfs_mount *t_mountp; /* ptr to fs mount struct */
106 struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */
107 unsigned int t_flags; /* misc flags */
108 int64_t t_icount_delta; /* superblock icount change */
109 int64_t t_ifree_delta; /* superblock ifree change */
110 int64_t t_fdblocks_delta; /* superblock fdblocks chg */
111 int64_t t_res_fdblocks_delta; /* on-disk only chg */
112 int64_t t_frextents_delta;/* superblock freextents chg*/
113 int64_t t_res_frextents_delta; /* on-disk only chg */
114#if defined(DEBUG) || defined(XFS_WARN)
115 int64_t t_ag_freeblks_delta; /* debugging counter */
116 int64_t t_ag_flist_delta; /* debugging counter */
117 int64_t t_ag_btree_delta; /* debugging counter */
118#endif
119 int64_t t_dblocks_delta;/* superblock dblocks change */
120 int64_t t_agcount_delta;/* superblock agcount change */
121 int64_t t_imaxpct_delta;/* superblock imaxpct change */
122 int64_t t_rextsize_delta;/* superblock rextsize chg */
123 int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */
124 int64_t t_rblocks_delta;/* superblock rblocks change */
125 int64_t t_rextents_delta;/* superblocks rextents chg */
126 int64_t t_rextslog_delta;/* superblocks rextslog chg */
127 struct list_head t_items; /* log item descriptors */
128 struct list_head t_busy; /* list of busy extents */
129 unsigned long t_pflags; /* saved process flags state */
130} xfs_trans_t;
131
132/*
133 * XFS transaction mechanism exported interfaces that are
134 * actually macros.
135 */
136#define xfs_trans_get_log_res(tp) ((tp)->t_log_res)
137#define xfs_trans_get_log_count(tp) ((tp)->t_log_count)
138#define xfs_trans_get_block_res(tp) ((tp)->t_blk_res)
139#define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC)
140
141#if defined(DEBUG) || defined(XFS_WARN)
142#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)
145#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 */
154xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint);
155xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, xfs_km_flags_t);
156xfs_trans_t *xfs_trans_dup(xfs_trans_t *);
157int xfs_trans_reserve(struct xfs_trans *, struct xfs_trans_res *,
158 uint, uint);
159void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
160
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{
174 DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
175 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,
183 struct xfs_buf **bpp,
184 const struct xfs_buf_ops *ops);
185
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,
194 struct xfs_buf **bpp,
195 const struct xfs_buf_ops *ops)
196{
197 DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
198 return xfs_trans_read_buf_map(mp, tp, target, &map, 1,
199 flags, bpp, ops);
200}
201
202struct 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 *);
207void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
208void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
209void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
210void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
211void xfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *);
212void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
213void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
214void xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
215void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
216void xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
217void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
218struct xfs_efi_log_item *xfs_trans_get_efi(xfs_trans_t *, uint);
219void xfs_efi_release(struct xfs_efi_log_item *, uint);
220void xfs_trans_log_efi_extent(xfs_trans_t *,
221 struct xfs_efi_log_item *,
222 xfs_fsblock_t,
223 xfs_extlen_t);
224struct xfs_efd_log_item *xfs_trans_get_efd(xfs_trans_t *,
225 struct xfs_efi_log_item *,
226 uint);
227void xfs_trans_log_efd_extent(xfs_trans_t *,
228 struct xfs_efd_log_item *,
229 xfs_fsblock_t,
230 xfs_extlen_t);
231int xfs_trans_commit(xfs_trans_t *, uint flags);
232int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
233void xfs_trans_cancel(xfs_trans_t *, int);
234int xfs_trans_ail_init(struct xfs_mount *);
235void xfs_trans_ail_destroy(struct xfs_mount *);
236
237void xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *,
238 enum xfs_blft);
239void xfs_trans_buf_copy_type(struct xfs_buf *dst_bp,
240 struct xfs_buf *src_bp);
241
242extern kmem_zone_t *xfs_trans_zone;
243extern kmem_zone_t *xfs_log_item_desc_zone;
244
245#endif /* __XFS_TRANS_H__ */
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
5 */
6#ifndef __XFS_TRANS_H__
7#define __XFS_TRANS_H__
8
9/* kernel only transaction subsystem defines */
10
11struct xfs_buf;
12struct xfs_buftarg;
13struct xfs_efd_log_item;
14struct xfs_efi_log_item;
15struct xfs_inode;
16struct xfs_item_ops;
17struct xfs_log_iovec;
18struct xfs_mount;
19struct xfs_trans;
20struct xfs_trans_res;
21struct xfs_dquot_acct;
22struct xfs_rud_log_item;
23struct xfs_rui_log_item;
24struct xfs_btree_cur;
25struct xfs_cui_log_item;
26struct xfs_cud_log_item;
27struct xfs_bui_log_item;
28struct xfs_bud_log_item;
29
30struct xfs_log_item {
31 struct list_head li_ail; /* AIL pointers */
32 struct list_head li_trans; /* transaction list */
33 xfs_lsn_t li_lsn; /* last on-disk lsn */
34 struct xfs_mount *li_mountp; /* ptr to fs mount */
35 struct xfs_ail *li_ailp; /* ptr to AIL */
36 uint li_type; /* item type */
37 unsigned long li_flags; /* misc flags */
38 struct xfs_buf *li_buf; /* real buffer pointer */
39 struct list_head li_bio_list; /* buffer item list */
40 const struct xfs_item_ops *li_ops; /* function list */
41
42 /* delayed logging */
43 struct list_head li_cil; /* CIL pointers */
44 struct xfs_log_vec *li_lv; /* active log vector */
45 struct xfs_log_vec *li_lv_shadow; /* standby vector */
46 xfs_csn_t li_seq; /* CIL commit seq */
47};
48
49/*
50 * li_flags use the (set/test/clear)_bit atomic interfaces because updates can
51 * race with each other and we don't want to have to use the AIL lock to
52 * serialise all updates.
53 */
54#define XFS_LI_IN_AIL 0
55#define XFS_LI_ABORTED 1
56#define XFS_LI_FAILED 2
57#define XFS_LI_DIRTY 3 /* log item dirty in transaction */
58
59#define XFS_LI_FLAGS \
60 { (1 << XFS_LI_IN_AIL), "IN_AIL" }, \
61 { (1 << XFS_LI_ABORTED), "ABORTED" }, \
62 { (1 << XFS_LI_FAILED), "FAILED" }, \
63 { (1 << XFS_LI_DIRTY), "DIRTY" }
64
65struct xfs_item_ops {
66 unsigned flags;
67 void (*iop_size)(struct xfs_log_item *, int *, int *);
68 void (*iop_format)(struct xfs_log_item *, struct xfs_log_vec *);
69 void (*iop_pin)(struct xfs_log_item *);
70 void (*iop_unpin)(struct xfs_log_item *, int remove);
71 uint (*iop_push)(struct xfs_log_item *, struct list_head *);
72 void (*iop_committing)(struct xfs_log_item *lip, xfs_csn_t seq);
73 void (*iop_release)(struct xfs_log_item *);
74 xfs_lsn_t (*iop_committed)(struct xfs_log_item *, xfs_lsn_t);
75 int (*iop_recover)(struct xfs_log_item *lip,
76 struct list_head *capture_list);
77 bool (*iop_match)(struct xfs_log_item *item, uint64_t id);
78 struct xfs_log_item *(*iop_relog)(struct xfs_log_item *intent,
79 struct xfs_trans *tp);
80};
81
82/* Is this log item a deferred action intent? */
83static inline bool
84xlog_item_is_intent(struct xfs_log_item *lip)
85{
86 return lip->li_ops->iop_recover != NULL &&
87 lip->li_ops->iop_match != NULL;
88}
89
90/* Is this a log intent-done item? */
91static inline bool
92xlog_item_is_intent_done(struct xfs_log_item *lip)
93{
94 return lip->li_ops->iop_unpin == NULL &&
95 lip->li_ops->iop_push == NULL;
96}
97
98/*
99 * Release the log item as soon as committed. This is for items just logging
100 * intents that never need to be written back in place.
101 */
102#define XFS_ITEM_RELEASE_WHEN_COMMITTED (1 << 0)
103
104void xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item,
105 int type, const struct xfs_item_ops *ops);
106
107/*
108 * Return values for the iop_push() routines.
109 */
110#define XFS_ITEM_SUCCESS 0
111#define XFS_ITEM_PINNED 1
112#define XFS_ITEM_LOCKED 2
113#define XFS_ITEM_FLUSHING 3
114
115/*
116 * Deferred operation item relogging limits.
117 */
118#define XFS_DEFER_OPS_NR_INODES 2 /* join up to two inodes */
119#define XFS_DEFER_OPS_NR_BUFS 2 /* join up to two buffers */
120
121/*
122 * This is the structure maintained for every active transaction.
123 */
124typedef struct xfs_trans {
125 unsigned int t_magic; /* magic number */
126 unsigned int t_log_res; /* amt of log space resvd */
127 unsigned int t_log_count; /* count for perm log res */
128 unsigned int t_blk_res; /* # of blocks resvd */
129 unsigned int t_blk_res_used; /* # of resvd blocks used */
130 unsigned int t_rtx_res; /* # of rt extents resvd */
131 unsigned int t_rtx_res_used; /* # of resvd rt extents used */
132 unsigned int t_flags; /* misc flags */
133 xfs_fsblock_t t_firstblock; /* first block allocated */
134 struct xlog_ticket *t_ticket; /* log mgr ticket */
135 struct xfs_mount *t_mountp; /* ptr to fs mount struct */
136 struct xfs_dquot_acct *t_dqinfo; /* acctg info for dquots */
137 int64_t t_icount_delta; /* superblock icount change */
138 int64_t t_ifree_delta; /* superblock ifree change */
139 int64_t t_fdblocks_delta; /* superblock fdblocks chg */
140 int64_t t_res_fdblocks_delta; /* on-disk only chg */
141 int64_t t_frextents_delta;/* superblock freextents chg*/
142 int64_t t_res_frextents_delta; /* on-disk only chg */
143 int64_t t_dblocks_delta;/* superblock dblocks change */
144 int64_t t_agcount_delta;/* superblock agcount change */
145 int64_t t_imaxpct_delta;/* superblock imaxpct change */
146 int64_t t_rextsize_delta;/* superblock rextsize chg */
147 int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */
148 int64_t t_rblocks_delta;/* superblock rblocks change */
149 int64_t t_rextents_delta;/* superblocks rextents chg */
150 int64_t t_rextslog_delta;/* superblocks rextslog chg */
151 struct list_head t_items; /* log item descriptors */
152 struct list_head t_busy; /* list of busy extents */
153 struct list_head t_dfops; /* deferred operations */
154 unsigned long t_pflags; /* saved process flags state */
155} xfs_trans_t;
156
157/*
158 * XFS transaction mechanism exported interfaces that are
159 * actually macros.
160 */
161#define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC)
162
163/*
164 * XFS transaction mechanism exported interfaces.
165 */
166int xfs_trans_alloc(struct xfs_mount *mp, struct xfs_trans_res *resp,
167 uint blocks, uint rtextents, uint flags,
168 struct xfs_trans **tpp);
169int xfs_trans_alloc_empty(struct xfs_mount *mp,
170 struct xfs_trans **tpp);
171void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
172
173int xfs_trans_get_buf_map(struct xfs_trans *tp, struct xfs_buftarg *target,
174 struct xfs_buf_map *map, int nmaps, xfs_buf_flags_t flags,
175 struct xfs_buf **bpp);
176
177static inline int
178xfs_trans_get_buf(
179 struct xfs_trans *tp,
180 struct xfs_buftarg *target,
181 xfs_daddr_t blkno,
182 int numblks,
183 uint flags,
184 struct xfs_buf **bpp)
185{
186 DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
187 return xfs_trans_get_buf_map(tp, target, &map, 1, flags, bpp);
188}
189
190int xfs_trans_read_buf_map(struct xfs_mount *mp,
191 struct xfs_trans *tp,
192 struct xfs_buftarg *target,
193 struct xfs_buf_map *map, int nmaps,
194 xfs_buf_flags_t flags,
195 struct xfs_buf **bpp,
196 const struct xfs_buf_ops *ops);
197
198static inline int
199xfs_trans_read_buf(
200 struct xfs_mount *mp,
201 struct xfs_trans *tp,
202 struct xfs_buftarg *target,
203 xfs_daddr_t blkno,
204 int numblks,
205 xfs_buf_flags_t flags,
206 struct xfs_buf **bpp,
207 const struct xfs_buf_ops *ops)
208{
209 DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
210 return xfs_trans_read_buf_map(mp, tp, target, &map, 1,
211 flags, bpp, ops);
212}
213
214struct xfs_buf *xfs_trans_getsb(struct xfs_trans *);
215
216void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
217void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
218void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
219void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
220void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
221void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
222void xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
223bool xfs_trans_ordered_buf(xfs_trans_t *, struct xfs_buf *);
224void xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
225void xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
226void xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
227void xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
228void xfs_trans_log_buf(struct xfs_trans *, struct xfs_buf *, uint,
229 uint);
230void xfs_trans_dirty_buf(struct xfs_trans *, struct xfs_buf *);
231bool xfs_trans_buf_is_dirty(struct xfs_buf *bp);
232void xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
233
234int xfs_trans_commit(struct xfs_trans *);
235int xfs_trans_roll(struct xfs_trans **);
236int xfs_trans_roll_inode(struct xfs_trans **, struct xfs_inode *);
237void xfs_trans_cancel(xfs_trans_t *);
238int xfs_trans_ail_init(struct xfs_mount *);
239void xfs_trans_ail_destroy(struct xfs_mount *);
240
241void xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *,
242 enum xfs_blft);
243void xfs_trans_buf_copy_type(struct xfs_buf *dst_bp,
244 struct xfs_buf *src_bp);
245
246extern kmem_zone_t *xfs_trans_zone;
247
248static inline struct xfs_log_item *
249xfs_trans_item_relog(
250 struct xfs_log_item *lip,
251 struct xfs_trans *tp)
252{
253 return lip->li_ops->iop_relog(lip, tp);
254}
255
256struct xfs_dquot;
257
258int xfs_trans_alloc_inode(struct xfs_inode *ip, struct xfs_trans_res *resv,
259 unsigned int dblocks, unsigned int rblocks, bool force,
260 struct xfs_trans **tpp);
261int xfs_trans_alloc_icreate(struct xfs_mount *mp, struct xfs_trans_res *resv,
262 struct xfs_dquot *udqp, struct xfs_dquot *gdqp,
263 struct xfs_dquot *pdqp, unsigned int dblocks,
264 struct xfs_trans **tpp);
265int xfs_trans_alloc_ichange(struct xfs_inode *ip, struct xfs_dquot *udqp,
266 struct xfs_dquot *gdqp, struct xfs_dquot *pdqp, bool force,
267 struct xfs_trans **tpp);
268
269static inline void
270xfs_trans_set_context(
271 struct xfs_trans *tp)
272{
273 ASSERT(current->journal_info == NULL);
274 tp->t_pflags = memalloc_nofs_save();
275 current->journal_info = tp;
276}
277
278static inline void
279xfs_trans_clear_context(
280 struct xfs_trans *tp)
281{
282 if (current->journal_info == tp) {
283 memalloc_nofs_restore(tp->t_pflags);
284 current->journal_info = NULL;
285 }
286}
287
288static inline void
289xfs_trans_switch_context(
290 struct xfs_trans *old_tp,
291 struct xfs_trans *new_tp)
292{
293 ASSERT(current->journal_info == old_tp);
294 new_tp->t_pflags = old_tp->t_pflags;
295 old_tp->t_pflags = 0;
296 current->journal_info = new_tp;
297}
298
299#endif /* __XFS_TRANS_H__ */