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b3b94faa DT |
1 | /* |
2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
3a8a9a10 | 3 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
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 | |
e9fc2aa0 | 7 | * of the GNU General Public License version 2. |
b3b94faa DT |
8 | */ |
9 | ||
10 | #ifndef __LOPS_DOT_H__ | |
11 | #define __LOPS_DOT_H__ | |
12 | ||
f2f7ba52 SW |
13 | #include <linux/list.h> |
14 | #include "incore.h" | |
15 | ||
2332c443 RP |
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 | ||
b09e593d SW |
23 | extern const struct gfs2_log_operations gfs2_glock_lops; |
24 | extern const struct gfs2_log_operations gfs2_buf_lops; | |
25 | extern const struct gfs2_log_operations gfs2_revoke_lops; | |
26 | extern const struct gfs2_log_operations gfs2_rg_lops; | |
27 | extern const struct gfs2_log_operations gfs2_databuf_lops; | |
b3b94faa | 28 | |
b09e593d | 29 | extern const struct gfs2_log_operations *gfs2_log_ops[]; |
b3b94faa | 30 | |
2332c443 RP |
31 | static 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 | ||
39 | static 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 | ||
b3b94faa | 47 | static inline void lops_init_le(struct gfs2_log_element *le, |
b09e593d | 48 | const struct gfs2_log_operations *lops) |
b3b94faa DT |
49 | { |
50 | INIT_LIST_HEAD(&le->le_list); | |
51 | le->le_ops = lops; | |
52 | } | |
53 | ||
54 | static inline void lops_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le) | |
55 | { | |
56 | if (le->le_ops->lo_add) | |
57 | le->le_ops->lo_add(sdp, le); | |
58 | } | |
59 | ||
60 | static inline void lops_incore_commit(struct gfs2_sbd *sdp, | |
61 | struct gfs2_trans *tr) | |
62 | { | |
63 | int x; | |
64 | for (x = 0; gfs2_log_ops[x]; x++) | |
65 | if (gfs2_log_ops[x]->lo_incore_commit) | |
66 | gfs2_log_ops[x]->lo_incore_commit(sdp, tr); | |
67 | } | |
68 | ||
69 | static inline void lops_before_commit(struct gfs2_sbd *sdp) | |
70 | { | |
71 | int x; | |
72 | for (x = 0; gfs2_log_ops[x]; x++) | |
73 | if (gfs2_log_ops[x]->lo_before_commit) | |
74 | gfs2_log_ops[x]->lo_before_commit(sdp); | |
75 | } | |
76 | ||
77 | static inline void lops_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai) | |
78 | { | |
79 | int x; | |
80 | for (x = 0; gfs2_log_ops[x]; x++) | |
81 | if (gfs2_log_ops[x]->lo_after_commit) | |
82 | gfs2_log_ops[x]->lo_after_commit(sdp, ai); | |
83 | } | |
84 | ||
85 | static inline void lops_before_scan(struct gfs2_jdesc *jd, | |
55167622 | 86 | struct gfs2_log_header_host *head, |
b3b94faa DT |
87 | unsigned int pass) |
88 | { | |
89 | int x; | |
90 | for (x = 0; gfs2_log_ops[x]; x++) | |
91 | if (gfs2_log_ops[x]->lo_before_scan) | |
92 | gfs2_log_ops[x]->lo_before_scan(jd, head, pass); | |
93 | } | |
94 | ||
95 | static inline int lops_scan_elements(struct gfs2_jdesc *jd, unsigned int start, | |
96 | struct gfs2_log_descriptor *ld, | |
97 | __be64 *ptr, | |
98 | unsigned int pass) | |
99 | { | |
100 | int x, error; | |
101 | for (x = 0; gfs2_log_ops[x]; x++) | |
102 | if (gfs2_log_ops[x]->lo_scan_elements) { | |
103 | error = gfs2_log_ops[x]->lo_scan_elements(jd, start, | |
104 | ld, ptr, pass); | |
105 | if (error) | |
106 | return error; | |
107 | } | |
108 | ||
109 | return 0; | |
110 | } | |
111 | ||
112 | static inline void lops_after_scan(struct gfs2_jdesc *jd, int error, | |
113 | unsigned int pass) | |
114 | { | |
115 | int x; | |
116 | for (x = 0; gfs2_log_ops[x]; x++) | |
117 | if (gfs2_log_ops[x]->lo_before_scan) | |
118 | gfs2_log_ops[x]->lo_after_scan(jd, error, pass); | |
119 | } | |
120 | ||
121 | #endif /* __LOPS_DOT_H__ */ | |
122 |