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 extern const struct gfs2_log_operations *gfs2_log_ops[];
14 extern void gfs2_log_incr_head(struct gfs2_sbd *sdp);
15 extern u64 gfs2_log_bmap(struct gfs2_jdesc *jd, unsigned int lbn);
16 extern void gfs2_log_write(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
17 struct page *page, unsigned size, unsigned offset,
18 u64 blkno);
19 extern void gfs2_log_submit_bio(struct bio **biop, blk_opf_t opf);
20 extern void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh);
21 extern int gfs2_find_jhead(struct gfs2_jdesc *jd,
22 struct gfs2_log_header_host *head, bool keep_cache);
23 extern void gfs2_drain_revokes(struct gfs2_sbd *sdp);
buf_limit(struct gfs2_sbd * sdp)24 static inline unsigned int buf_limit(struct gfs2_sbd *sdp)
25 {
26 return sdp->sd_ldptrs;
27 }
28
databuf_limit(struct gfs2_sbd * sdp)29 static inline unsigned int databuf_limit(struct gfs2_sbd *sdp)
30 {
31 return sdp->sd_ldptrs / 2;
32 }
33
lops_before_commit(struct gfs2_sbd * sdp,struct gfs2_trans * tr)34 static 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
lops_after_commit(struct gfs2_sbd * sdp,struct gfs2_trans * tr)43 static 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
lops_before_scan(struct gfs2_jdesc * jd,struct gfs2_log_header_host * head,unsigned int pass)52 static 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
lops_scan_elements(struct gfs2_jdesc * jd,u32 start,struct gfs2_log_descriptor * ld,__be64 * ptr,unsigned int pass)62 static 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
lops_after_scan(struct gfs2_jdesc * jd,int error,unsigned int pass)79 static 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
90