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