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18#ifndef __XFS_BUF_ITEM_H__
19#define __XFS_BUF_ITEM_H__
20
21extern kmem_zone_t *xfs_buf_item_zone;
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27
28
29typedef struct xfs_buf_log_format_t {
30 unsigned short blf_type;
31 unsigned short blf_size;
32 ushort blf_flags;
33 ushort blf_len;
34 __int64_t blf_blkno;
35 unsigned int blf_map_size;
36 unsigned int blf_data_map[1];
37
38} xfs_buf_log_format_t;
39
40
41
42
43
44#define XFS_BLI_INODE_BUF 0x1
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46
47
48
49#define XFS_BLI_CANCEL 0x2
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51
52
53
54#define XFS_BLI_UDQUOT_BUF 0x4
55#define XFS_BLI_PDQUOT_BUF 0x8
56#define XFS_BLI_GDQUOT_BUF 0x10
57
58#define XFS_BLI_CHUNK 128
59#define XFS_BLI_SHIFT 7
60#define BIT_TO_WORD_SHIFT 5
61#define NBWORD (NBBY * sizeof(unsigned int))
62
63
64
65
66#define XFS_BLI_HOLD 0x01
67#define XFS_BLI_DIRTY 0x02
68#define XFS_BLI_STALE 0x04
69#define XFS_BLI_LOGGED 0x08
70#define XFS_BLI_INODE_ALLOC_BUF 0x10
71#define XFS_BLI_STALE_INODE 0x20
72
73
74#ifdef __KERNEL__
75
76struct xfs_buf;
77struct ktrace;
78struct xfs_mount;
79struct xfs_buf_log_item;
80
81#if defined(XFS_BLI_TRACE)
82#define XFS_BLI_TRACE_SIZE 32
83
84void xfs_buf_item_trace(char *, struct xfs_buf_log_item *);
85#else
86#define xfs_buf_item_trace(id, bip)
87#endif
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92
93
94typedef struct xfs_buf_log_item {
95 xfs_log_item_t bli_item;
96 struct xfs_buf *bli_buf;
97 unsigned int bli_flags;
98 unsigned int bli_recur;
99 atomic_t bli_refcount;
100#ifdef XFS_BLI_TRACE
101 struct ktrace *bli_trace;
102#endif
103#ifdef XFS_TRANS_DEBUG
104 char *bli_orig;
105 char *bli_logged;
106#endif
107 xfs_buf_log_format_t bli_format;
108} xfs_buf_log_item_t;
109
110
111
112
113
114typedef struct xfs_buf_cancel {
115 xfs_daddr_t bc_blkno;
116 uint bc_len;
117 int bc_refcount;
118 struct xfs_buf_cancel *bc_next;
119} xfs_buf_cancel_t;
120
121void xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
122void xfs_buf_item_relse(struct xfs_buf *);
123void xfs_buf_item_log(xfs_buf_log_item_t *, uint, uint);
124uint xfs_buf_item_dirty(xfs_buf_log_item_t *);
125void xfs_buf_attach_iodone(struct xfs_buf *,
126 void(*)(struct xfs_buf *, xfs_log_item_t *),
127 xfs_log_item_t *);
128void xfs_buf_iodone_callbacks(struct xfs_buf *);
129void xfs_buf_iodone(struct xfs_buf *, xfs_buf_log_item_t *);
130
131#ifdef XFS_TRANS_DEBUG
132void
133xfs_buf_item_flush_log_debug(
134 struct xfs_buf *bp,
135 uint first,
136 uint last);
137#else
138#define xfs_buf_item_flush_log_debug(bp, first, last)
139#endif
140
141#endif
142
143#endif
144