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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
13extern const struct gfs2_log_operations *gfs2_log_ops[];
14
15void gfs2_log_incr_head(struct gfs2_sbd *sdp);
16u64 gfs2_log_bmap(struct gfs2_jdesc *jd, unsigned int lbn);
17void gfs2_log_write(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
18 struct page *page, unsigned size, unsigned offset,
19 u64 blkno);
20void gfs2_log_submit_bio(struct bio **biop, blk_opf_t opf);
21void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh);
22int gfs2_find_jhead(struct gfs2_jdesc *jd,
23 struct gfs2_log_header_host *head, bool keep_cache);
24void gfs2_drain_revokes(struct gfs2_sbd *sdp);
25
26static inline unsigned int buf_limit(struct gfs2_sbd *sdp)
27{
28 return sdp->sd_ldptrs;
29}
30
31static inline unsigned int databuf_limit(struct gfs2_sbd *sdp)
32{
33 return sdp->sd_ldptrs / 2;
34}
35
36static inline void lops_before_commit(struct gfs2_sbd *sdp,
37 struct gfs2_trans *tr)
38{
39 int x;
40 for (x = 0; gfs2_log_ops[x]; x++)
41 if (gfs2_log_ops[x]->lo_before_commit)
42 gfs2_log_ops[x]->lo_before_commit(sdp, tr);
43}
44
45static inline void lops_after_commit(struct gfs2_sbd *sdp,
46 struct gfs2_trans *tr)
47{
48 int x;
49 for (x = 0; gfs2_log_ops[x]; x++)
50 if (gfs2_log_ops[x]->lo_after_commit)
51 gfs2_log_ops[x]->lo_after_commit(sdp, tr);
52}
53
54static inline void lops_before_scan(struct gfs2_jdesc *jd,
55 struct gfs2_log_header_host *head,
56 unsigned int pass)
57{
58 int x;
59 for (x = 0; gfs2_log_ops[x]; x++)
60 if (gfs2_log_ops[x]->lo_before_scan)
61 gfs2_log_ops[x]->lo_before_scan(jd, head, pass);
62}
63
64static inline int lops_scan_elements(struct gfs2_jdesc *jd, u32 start,
65 struct gfs2_log_descriptor *ld,
66 __be64 *ptr,
67 unsigned int pass)
68{
69 int x, error;
70 for (x = 0; gfs2_log_ops[x]; x++)
71 if (gfs2_log_ops[x]->lo_scan_elements) {
72 error = gfs2_log_ops[x]->lo_scan_elements(jd, start,
73 ld, ptr, pass);
74 if (error)
75 return error;
76 }
77
78 return 0;
79}
80
81static inline void lops_after_scan(struct gfs2_jdesc *jd, int error,
82 unsigned int pass)
83{
84 int x;
85 for (x = 0; gfs2_log_ops[x]; x++)
86 if (gfs2_log_ops[x]->lo_before_scan)
87 gfs2_log_ops[x]->lo_after_scan(jd, error, pass);
88}
89
90#endif /* __LOPS_DOT_H__ */
91
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