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1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
4 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
7 * of the GNU General Public License version 2.
8 */
9
10#ifndef __LOPS_DOT_H__
11#define __LOPS_DOT_H__
12
13#include <linux/list.h>
14#include "incore.h"
15
16#define BUF_OFFSET \
17 ((sizeof(struct gfs2_log_descriptor) + sizeof(__be64) - 1) & \
18 ~(sizeof(__be64) - 1))
19#define DATABUF_OFFSET \
20 ((sizeof(struct gfs2_log_descriptor) + (2 * sizeof(__be64) - 1)) & \
21 ~(2 * sizeof(__be64) - 1))
22
23extern const struct gfs2_log_operations gfs2_glock_lops;
24extern const struct gfs2_log_operations gfs2_buf_lops;
25extern const struct gfs2_log_operations gfs2_revoke_lops;
26extern const struct gfs2_log_operations gfs2_rg_lops;
27extern const struct gfs2_log_operations gfs2_databuf_lops;
28
29extern const struct gfs2_log_operations *gfs2_log_ops[];
30extern void gfs2_log_write_page(struct gfs2_sbd *sdp, struct page *page);
31extern void gfs2_log_flush_bio(struct gfs2_sbd *sdp, int rw);
32
33static inline unsigned int buf_limit(struct gfs2_sbd *sdp)
34{
35 unsigned int limit;
36
37 limit = (sdp->sd_sb.sb_bsize - BUF_OFFSET) / sizeof(__be64);
38 return limit;
39}
40
41static inline unsigned int databuf_limit(struct gfs2_sbd *sdp)
42{
43 unsigned int limit;
44
45 limit = (sdp->sd_sb.sb_bsize - DATABUF_OFFSET) / (2 * sizeof(__be64));
46 return limit;
47}
48
49static inline void lops_init_le(struct gfs2_bufdata *bd,
50 const struct gfs2_log_operations *lops)
51{
52 INIT_LIST_HEAD(&bd->bd_list);
53 bd->bd_ops = lops;
54}
55
56static inline void lops_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
57{
58 if (bd->bd_ops->lo_add)
59 bd->bd_ops->lo_add(sdp, bd);
60}
61
62static inline void lops_before_commit(struct gfs2_sbd *sdp)
63{
64 int x;
65 for (x = 0; gfs2_log_ops[x]; x++)
66 if (gfs2_log_ops[x]->lo_before_commit)
67 gfs2_log_ops[x]->lo_before_commit(sdp);
68}
69
70static inline void lops_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
71{
72 int x;
73 for (x = 0; gfs2_log_ops[x]; x++)
74 if (gfs2_log_ops[x]->lo_after_commit)
75 gfs2_log_ops[x]->lo_after_commit(sdp, ai);
76}
77
78static inline void lops_before_scan(struct gfs2_jdesc *jd,
79 struct gfs2_log_header_host *head,
80 unsigned int pass)
81{
82 int x;
83 for (x = 0; gfs2_log_ops[x]; x++)
84 if (gfs2_log_ops[x]->lo_before_scan)
85 gfs2_log_ops[x]->lo_before_scan(jd, head, pass);
86}
87
88static inline int lops_scan_elements(struct gfs2_jdesc *jd, unsigned int start,
89 struct gfs2_log_descriptor *ld,
90 __be64 *ptr,
91 unsigned int pass)
92{
93 int x, error;
94 for (x = 0; gfs2_log_ops[x]; x++)
95 if (gfs2_log_ops[x]->lo_scan_elements) {
96 error = gfs2_log_ops[x]->lo_scan_elements(jd, start,
97 ld, ptr, pass);
98 if (error)
99 return error;
100 }
101
102 return 0;
103}
104
105static inline void lops_after_scan(struct gfs2_jdesc *jd, int error,
106 unsigned int pass)
107{
108 int x;
109 for (x = 0; gfs2_log_ops[x]; x++)
110 if (gfs2_log_ops[x]->lo_before_scan)
111 gfs2_log_ops[x]->lo_after_scan(jd, error, pass);
112}
113
114#endif /* __LOPS_DOT_H__ */
115
1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
4 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
7 * of the GNU General Public License version 2.
8 */
9
10#ifndef __LOPS_DOT_H__
11#define __LOPS_DOT_H__
12
13#include <linux/list.h>
14#include "incore.h"
15
16#define BUF_OFFSET \
17 ((sizeof(struct gfs2_log_descriptor) + sizeof(__be64) - 1) & \
18 ~(sizeof(__be64) - 1))
19#define DATABUF_OFFSET \
20 ((sizeof(struct gfs2_log_descriptor) + (2 * sizeof(__be64) - 1)) & \
21 ~(2 * sizeof(__be64) - 1))
22
23extern const struct gfs2_log_operations gfs2_glock_lops;
24extern const struct gfs2_log_operations gfs2_buf_lops;
25extern const struct gfs2_log_operations gfs2_revoke_lops;
26extern const struct gfs2_log_operations gfs2_databuf_lops;
27
28extern const struct gfs2_log_operations *gfs2_log_ops[];
29extern u64 gfs2_log_bmap(struct gfs2_sbd *sdp);
30extern void gfs2_log_write(struct gfs2_sbd *sdp, struct page *page,
31 unsigned size, unsigned offset, u64 blkno);
32extern void gfs2_log_write_page(struct gfs2_sbd *sdp, struct page *page);
33extern void gfs2_log_flush_bio(struct gfs2_sbd *sdp, int op, int op_flags);
34extern void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh);
35
36static inline unsigned int buf_limit(struct gfs2_sbd *sdp)
37{
38 unsigned int limit;
39
40 limit = (sdp->sd_sb.sb_bsize - BUF_OFFSET) / sizeof(__be64);
41 return limit;
42}
43
44static inline unsigned int databuf_limit(struct gfs2_sbd *sdp)
45{
46 unsigned int limit;
47
48 limit = (sdp->sd_sb.sb_bsize - DATABUF_OFFSET) / (2 * sizeof(__be64));
49 return limit;
50}
51
52static inline void lops_before_commit(struct gfs2_sbd *sdp,
53 struct gfs2_trans *tr)
54{
55 int x;
56 for (x = 0; gfs2_log_ops[x]; x++)
57 if (gfs2_log_ops[x]->lo_before_commit)
58 gfs2_log_ops[x]->lo_before_commit(sdp, tr);
59}
60
61static inline void lops_after_commit(struct gfs2_sbd *sdp,
62 struct gfs2_trans *tr)
63{
64 int x;
65 for (x = 0; gfs2_log_ops[x]; x++)
66 if (gfs2_log_ops[x]->lo_after_commit)
67 gfs2_log_ops[x]->lo_after_commit(sdp, tr);
68}
69
70static inline void lops_before_scan(struct gfs2_jdesc *jd,
71 struct gfs2_log_header_host *head,
72 unsigned int pass)
73{
74 int x;
75 for (x = 0; gfs2_log_ops[x]; x++)
76 if (gfs2_log_ops[x]->lo_before_scan)
77 gfs2_log_ops[x]->lo_before_scan(jd, head, pass);
78}
79
80static inline int lops_scan_elements(struct gfs2_jdesc *jd, unsigned int start,
81 struct gfs2_log_descriptor *ld,
82 __be64 *ptr,
83 unsigned int pass)
84{
85 int x, error;
86 for (x = 0; gfs2_log_ops[x]; x++)
87 if (gfs2_log_ops[x]->lo_scan_elements) {
88 error = gfs2_log_ops[x]->lo_scan_elements(jd, start,
89 ld, ptr, pass);
90 if (error)
91 return error;
92 }
93
94 return 0;
95}
96
97static inline void lops_after_scan(struct gfs2_jdesc *jd, int error,
98 unsigned int pass)
99{
100 int x;
101 for (x = 0; gfs2_log_ops[x]; x++)
102 if (gfs2_log_ops[x]->lo_before_scan)
103 gfs2_log_ops[x]->lo_after_scan(jd, error, pass);
104}
105
106#endif /* __LOPS_DOT_H__ */
107