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6#ifndef __XFS_TRANS_PRIV_H__
7#define __XFS_TRANS_PRIV_H__
8
9struct xfs_log_item;
10struct xfs_mount;
11struct xfs_trans;
12struct xfs_ail;
13struct xfs_log_vec;
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15
16void xfs_trans_init(struct xfs_mount *);
17void xfs_trans_add_item(struct xfs_trans *, struct xfs_log_item *);
18void xfs_trans_del_item(struct xfs_log_item *);
19void xfs_trans_free_items(struct xfs_trans *tp, xfs_lsn_t commit_lsn,
20 bool abort);
21void xfs_trans_unreserve_and_mod_sb(struct xfs_trans *tp);
22
23void xfs_trans_committed_bulk(struct xfs_ail *ailp, struct xfs_log_vec *lv,
24 xfs_lsn_t commit_lsn, int aborted);
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43
44struct xfs_ail_cursor {
45 struct list_head list;
46 struct xfs_log_item *item;
47};
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53
54struct xfs_ail {
55 struct xfs_mount *ail_mount;
56 struct task_struct *ail_task;
57 struct list_head ail_head;
58 xfs_lsn_t ail_target;
59 xfs_lsn_t ail_target_prev;
60 struct list_head ail_cursors;
61 spinlock_t ail_lock;
62 xfs_lsn_t ail_last_pushed_lsn;
63 int ail_log_flush;
64 struct list_head ail_buf_list;
65 wait_queue_head_t ail_empty;
66};
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69
70
71void xfs_trans_ail_update_bulk(struct xfs_ail *ailp,
72 struct xfs_ail_cursor *cur,
73 struct xfs_log_item **log_items, int nr_items,
74 xfs_lsn_t lsn) __releases(ailp->ail_lock);
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76
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78
79static inline struct xfs_log_item *
80xfs_ail_min(
81 struct xfs_ail *ailp)
82{
83 return list_first_entry_or_null(&ailp->ail_head, struct xfs_log_item,
84 li_ail);
85}
86
87static inline void
88xfs_trans_ail_update(
89 struct xfs_ail *ailp,
90 struct xfs_log_item *lip,
91 xfs_lsn_t lsn) __releases(ailp->ail_lock)
92{
93 xfs_trans_ail_update_bulk(ailp, NULL, &lip, 1, lsn);
94}
95
96bool xfs_ail_delete_one(struct xfs_ail *ailp, struct xfs_log_item *lip);
97void xfs_trans_ail_delete(struct xfs_ail *ailp, struct xfs_log_item *lip,
98 int shutdown_type) __releases(ailp->ail_lock);
99
100static inline void
101xfs_trans_ail_remove(
102 struct xfs_log_item *lip,
103 int shutdown_type)
104{
105 struct xfs_ail *ailp = lip->li_ailp;
106
107 spin_lock(&ailp->ail_lock);
108
109 if (test_bit(XFS_LI_IN_AIL, &lip->li_flags))
110 xfs_trans_ail_delete(ailp, lip, shutdown_type);
111 else
112 spin_unlock(&ailp->ail_lock);
113}
114
115void xfs_ail_push(struct xfs_ail *, xfs_lsn_t);
116void xfs_ail_push_all(struct xfs_ail *);
117void xfs_ail_push_all_sync(struct xfs_ail *);
118struct xfs_log_item *xfs_ail_min(struct xfs_ail *ailp);
119xfs_lsn_t xfs_ail_min_lsn(struct xfs_ail *ailp);
120
121struct xfs_log_item * xfs_trans_ail_cursor_first(struct xfs_ail *ailp,
122 struct xfs_ail_cursor *cur,
123 xfs_lsn_t lsn);
124struct xfs_log_item * xfs_trans_ail_cursor_last(struct xfs_ail *ailp,
125 struct xfs_ail_cursor *cur,
126 xfs_lsn_t lsn);
127struct xfs_log_item * xfs_trans_ail_cursor_next(struct xfs_ail *ailp,
128 struct xfs_ail_cursor *cur);
129void xfs_trans_ail_cursor_done(struct xfs_ail_cursor *cur);
130
131#if BITS_PER_LONG != 64
132static inline void
133xfs_trans_ail_copy_lsn(
134 struct xfs_ail *ailp,
135 xfs_lsn_t *dst,
136 xfs_lsn_t *src)
137{
138 ASSERT(sizeof(xfs_lsn_t) == 8);
139 spin_lock(&ailp->ail_lock);
140 *dst = *src;
141 spin_unlock(&ailp->ail_lock);
142}
143#else
144static inline void
145xfs_trans_ail_copy_lsn(
146 struct xfs_ail *ailp,
147 xfs_lsn_t *dst,
148 xfs_lsn_t *src)
149{
150 ASSERT(sizeof(xfs_lsn_t) == 8);
151 *dst = *src;
152}
153#endif
154
155static inline void
156xfs_clear_li_failed(
157 struct xfs_log_item *lip)
158{
159 struct xfs_buf *bp = lip->li_buf;
160
161 ASSERT(test_bit(XFS_LI_IN_AIL, &lip->li_flags));
162 lockdep_assert_held(&lip->li_ailp->ail_lock);
163
164 if (test_and_clear_bit(XFS_LI_FAILED, &lip->li_flags)) {
165 lip->li_buf = NULL;
166 xfs_buf_rele(bp);
167 }
168}
169
170static inline void
171xfs_set_li_failed(
172 struct xfs_log_item *lip,
173 struct xfs_buf *bp)
174{
175 lockdep_assert_held(&lip->li_ailp->ail_lock);
176
177 if (!test_and_set_bit(XFS_LI_FAILED, &lip->li_flags)) {
178 xfs_buf_hold(bp);
179 lip->li_buf = bp;
180 }
181}
182
183#endif
184