blob: 76a50899fe9e2252074a3aa844723d545802581c [file] [log] [blame]
David Teiglandb3b94fa2006-01-16 16:50:04 +00001/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
Steven Whitehouse3a8a9a12006-05-18 15:09:15 -04003 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
David Teiglandb3b94fa2006-01-16 16:50:04 +00004 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
Steven Whitehousee9fc2aa2006-09-01 11:05:15 -04007 * of the GNU General Public License version 2.
David Teiglandb3b94fa2006-01-16 16:50:04 +00008 */
9
10#ifndef __UTIL_DOT_H__
11#define __UTIL_DOT_H__
12
Steven Whitehousef2f7ba52006-09-05 10:39:21 -040013#include "incore.h"
David Teiglandb3b94fa2006-01-16 16:50:04 +000014
15#define fs_printk(level, fs, fmt, arg...) \
16 printk(level "GFS2: fsid=%s: " fmt , (fs)->sd_fsname , ## arg)
17
18#define fs_info(fs, fmt, arg...) \
19 fs_printk(KERN_INFO , fs , fmt , ## arg)
20
21#define fs_warn(fs, fmt, arg...) \
22 fs_printk(KERN_WARNING , fs , fmt , ## arg)
23
24#define fs_err(fs, fmt, arg...) \
25 fs_printk(KERN_ERR, fs , fmt , ## arg)
26
27
28void gfs2_assert_i(struct gfs2_sbd *sdp);
29
30#define gfs2_assert(sdp, assertion) \
31do { \
32 if (unlikely(!(assertion))) { \
33 gfs2_assert_i(sdp); \
Steven Whitehouse1e09ae52006-04-21 15:52:46 -040034 BUG(); \
David Teiglandb3b94fa2006-01-16 16:50:04 +000035 } \
36} while (0)
37
38
39int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
40 const char *function, char *file, unsigned int line);
41
42#define gfs2_assert_withdraw(sdp, assertion) \
43((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \
44 __FUNCTION__, __FILE__, __LINE__))
45
46
47int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
48 const char *function, char *file, unsigned int line);
49
50#define gfs2_assert_warn(sdp, assertion) \
51((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \
52 __FUNCTION__, __FILE__, __LINE__))
53
54
55int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide,
56 const char *function, char *file, unsigned int line);
57
58#define gfs2_consist(sdp) \
59gfs2_consist_i((sdp), 0, __FUNCTION__, __FILE__, __LINE__)
60
61
62int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
63 const char *function, char *file, unsigned int line);
64
65#define gfs2_consist_inode(ip) \
66gfs2_consist_inode_i((ip), 0, __FUNCTION__, __FILE__, __LINE__)
67
68
69int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
70 const char *function, char *file, unsigned int line);
71
72#define gfs2_consist_rgrpd(rgd) \
73gfs2_consist_rgrpd_i((rgd), 0, __FUNCTION__, __FILE__, __LINE__)
74
75
76int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
77 const char *type, const char *function,
78 char *file, unsigned int line);
79
80static inline int gfs2_meta_check_i(struct gfs2_sbd *sdp,
81 struct buffer_head *bh,
82 const char *function,
83 char *file, unsigned int line)
84{
85 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
Steven Whitehousecd915492006-09-04 12:49:07 -040086 u32 magic = mh->mh_magic;
David Teiglandb3b94fa2006-01-16 16:50:04 +000087 magic = be32_to_cpu(magic);
88 if (unlikely(magic != GFS2_MAGIC))
89 return gfs2_meta_check_ii(sdp, bh, "magic number", function,
90 file, line);
91 return 0;
92}
93
94#define gfs2_meta_check(sdp, bh) \
95gfs2_meta_check_i((sdp), (bh), __FUNCTION__, __FILE__, __LINE__)
96
97
98int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
Steven Whitehousecd915492006-09-04 12:49:07 -040099 u16 type, u16 t,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000100 const char *function,
101 char *file, unsigned int line);
102
103static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
104 struct buffer_head *bh,
Steven Whitehousecd915492006-09-04 12:49:07 -0400105 u16 type,
David Teiglandb3b94fa2006-01-16 16:50:04 +0000106 const char *function,
107 char *file, unsigned int line)
108{
109 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
Steven Whitehousecd915492006-09-04 12:49:07 -0400110 u32 magic = mh->mh_magic;
111 u16 t = be32_to_cpu(mh->mh_type);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000112 magic = be32_to_cpu(magic);
113 if (unlikely(magic != GFS2_MAGIC))
114 return gfs2_meta_check_ii(sdp, bh, "magic number", function,
115 file, line);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000116 if (unlikely(t != type))
117 return gfs2_metatype_check_ii(sdp, bh, type, t, function,
118 file, line);
119 return 0;
120}
121
122#define gfs2_metatype_check(sdp, bh, type) \
123gfs2_metatype_check_i((sdp), (bh), (type), __FUNCTION__, __FILE__, __LINE__)
124
Steven Whitehousecd915492006-09-04 12:49:07 -0400125static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type,
126 u16 format)
David Teiglandb3b94fa2006-01-16 16:50:04 +0000127{
128 struct gfs2_meta_header *mh;
129 mh = (struct gfs2_meta_header *)bh->b_data;
Steven Whitehousee3167de2006-03-30 15:46:23 -0500130 mh->mh_type = cpu_to_be32(type);
131 mh->mh_format = cpu_to_be32(format);
David Teiglandb3b94fa2006-01-16 16:50:04 +0000132}
133
134
135int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
136 char *file, unsigned int line);
137
138#define gfs2_io_error(sdp) \
139gfs2_io_error_i((sdp), __FUNCTION__, __FILE__, __LINE__);
140
141
142int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
143 const char *function, char *file, unsigned int line);
144
145#define gfs2_io_error_bh(sdp, bh) \
146gfs2_io_error_bh_i((sdp), (bh), __FUNCTION__, __FILE__, __LINE__);
147
148
149extern kmem_cache_t *gfs2_glock_cachep;
150extern kmem_cache_t *gfs2_inode_cachep;
151extern kmem_cache_t *gfs2_bufdata_cachep;
152
David Teiglandb3b94fa2006-01-16 16:50:04 +0000153static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
154 unsigned int *p)
155{
156 unsigned int x;
157 spin_lock(&gt->gt_spin);
158 x = *p;
159 spin_unlock(&gt->gt_spin);
160 return x;
161}
162
163#define gfs2_tune_get(sdp, field) \
164gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
165
166void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
167 unsigned int bit, int new_value);
168
169#endif /* __UTIL_DOT_H__ */
170