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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_databuf_lops;
27
28extern const struct gfs2_log_operations *gfs2_log_ops[];
29extern void gfs2_log_write_page(struct gfs2_sbd *sdp, struct page *page);
30extern void gfs2_log_flush_bio(struct gfs2_sbd *sdp, int rw);
31extern void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh);
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_before_commit(struct gfs2_sbd *sdp,
50 struct gfs2_trans *tr)
51{
52 int x;
53 for (x = 0; gfs2_log_ops[x]; x++)
54 if (gfs2_log_ops[x]->lo_before_commit)
55 gfs2_log_ops[x]->lo_before_commit(sdp, tr);
56}
57
58static inline void lops_after_commit(struct gfs2_sbd *sdp,
59 struct gfs2_trans *tr)
60{
61 int x;
62 for (x = 0; gfs2_log_ops[x]; x++)
63 if (gfs2_log_ops[x]->lo_after_commit)
64 gfs2_log_ops[x]->lo_after_commit(sdp, tr);
65}
66
67static inline void lops_before_scan(struct gfs2_jdesc *jd,
68 struct gfs2_log_header_host *head,
69 unsigned int pass)
70{
71 int x;
72 for (x = 0; gfs2_log_ops[x]; x++)
73 if (gfs2_log_ops[x]->lo_before_scan)
74 gfs2_log_ops[x]->lo_before_scan(jd, head, pass);
75}
76
77static inline int lops_scan_elements(struct gfs2_jdesc *jd, unsigned int start,
78 struct gfs2_log_descriptor *ld,
79 __be64 *ptr,
80 unsigned int pass)
81{
82 int x, error;
83 for (x = 0; gfs2_log_ops[x]; x++)
84 if (gfs2_log_ops[x]->lo_scan_elements) {
85 error = gfs2_log_ops[x]->lo_scan_elements(jd, start,
86 ld, ptr, pass);
87 if (error)
88 return error;
89 }
90
91 return 0;
92}
93
94static inline void lops_after_scan(struct gfs2_jdesc *jd, int error,
95 unsigned int pass)
96{
97 int x;
98 for (x = 0; gfs2_log_ops[x]; x++)
99 if (gfs2_log_ops[x]->lo_before_scan)
100 gfs2_log_ops[x]->lo_after_scan(jd, error, pass);
101}
102
103#endif /* __LOPS_DOT_H__ */
104
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
4 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
5 */
6
7#ifndef __LOPS_DOT_H__
8#define __LOPS_DOT_H__
9
10#include <linux/list.h>
11#include "incore.h"
12
13#define BUF_OFFSET \
14 ((sizeof(struct gfs2_log_descriptor) + sizeof(__be64) - 1) & \
15 ~(sizeof(__be64) - 1))
16#define DATABUF_OFFSET \
17 ((sizeof(struct gfs2_log_descriptor) + (2 * sizeof(__be64) - 1)) & \
18 ~(2 * sizeof(__be64) - 1))
19
20extern const struct gfs2_log_operations *gfs2_log_ops[];
21extern void gfs2_log_incr_head(struct gfs2_sbd *sdp);
22extern u64 gfs2_log_bmap(struct gfs2_jdesc *jd, unsigned int lbn);
23extern void gfs2_log_write(struct gfs2_sbd *sdp, struct page *page,
24 unsigned size, unsigned offset, u64 blkno);
25extern void gfs2_log_write_page(struct gfs2_sbd *sdp, struct page *page);
26extern void gfs2_log_submit_bio(struct bio **biop, int opf);
27extern void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh);
28extern int gfs2_find_jhead(struct gfs2_jdesc *jd,
29 struct gfs2_log_header_host *head, bool keep_cache);
30
31static inline unsigned int buf_limit(struct gfs2_sbd *sdp)
32{
33 unsigned int limit;
34
35 limit = (sdp->sd_sb.sb_bsize - BUF_OFFSET) / sizeof(__be64);
36 return limit;
37}
38
39static inline unsigned int databuf_limit(struct gfs2_sbd *sdp)
40{
41 unsigned int limit;
42
43 limit = (sdp->sd_sb.sb_bsize - DATABUF_OFFSET) / (2 * sizeof(__be64));
44 return limit;
45}
46
47static inline void lops_before_commit(struct gfs2_sbd *sdp,
48 struct gfs2_trans *tr)
49{
50 int x;
51 for (x = 0; gfs2_log_ops[x]; x++)
52 if (gfs2_log_ops[x]->lo_before_commit)
53 gfs2_log_ops[x]->lo_before_commit(sdp, tr);
54}
55
56static inline void lops_after_commit(struct gfs2_sbd *sdp,
57 struct gfs2_trans *tr)
58{
59 int x;
60 for (x = 0; gfs2_log_ops[x]; x++)
61 if (gfs2_log_ops[x]->lo_after_commit)
62 gfs2_log_ops[x]->lo_after_commit(sdp, tr);
63}
64
65static inline void lops_before_scan(struct gfs2_jdesc *jd,
66 struct gfs2_log_header_host *head,
67 unsigned int pass)
68{
69 int x;
70 for (x = 0; gfs2_log_ops[x]; x++)
71 if (gfs2_log_ops[x]->lo_before_scan)
72 gfs2_log_ops[x]->lo_before_scan(jd, head, pass);
73}
74
75static inline int lops_scan_elements(struct gfs2_jdesc *jd, u32 start,
76 struct gfs2_log_descriptor *ld,
77 __be64 *ptr,
78 unsigned int pass)
79{
80 int x, error;
81 for (x = 0; gfs2_log_ops[x]; x++)
82 if (gfs2_log_ops[x]->lo_scan_elements) {
83 error = gfs2_log_ops[x]->lo_scan_elements(jd, start,
84 ld, ptr, pass);
85 if (error)
86 return error;
87 }
88
89 return 0;
90}
91
92static inline void lops_after_scan(struct gfs2_jdesc *jd, int error,
93 unsigned int pass)
94{
95 int x;
96 for (x = 0; gfs2_log_ops[x]; x++)
97 if (gfs2_log_ops[x]->lo_before_scan)
98 gfs2_log_ops[x]->lo_after_scan(jd, error, pass);
99}
100
101#endif /* __LOPS_DOT_H__ */
102