1 /*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2006 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 __UTIL_DOT_H__
11 #define __UTIL_DOT_H__
12
13 #ifdef pr_fmt
14 #undef pr_fmt
15 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
16 #endif
17
18 #include <linux/mempool.h>
19
20 #include "incore.h"
21
22 #define fs_emerg(fs, fmt, ...) \
23 pr_emerg("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
24 #define fs_warn(fs, fmt, ...) \
25 pr_warn("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
26 #define fs_err(fs, fmt, ...) \
27 pr_err("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
28 #define fs_info(fs, fmt, ...) \
29 pr_info("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
30
31 void gfs2_assert_i(struct gfs2_sbd *sdp);
32
33 #define gfs2_assert(sdp, assertion) \
34 do { \
35 if (unlikely(!(assertion))) { \
36 gfs2_assert_i(sdp); \
37 BUG(); \
38 } \
39 } while (0)
40
41
42 int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
43 const char *function, char *file, unsigned int line);
44
45 #define gfs2_assert_withdraw(sdp, assertion) \
46 ((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \
47 __func__, __FILE__, __LINE__))
48
49
50 int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
51 const char *function, char *file, unsigned int line);
52
53 #define gfs2_assert_warn(sdp, assertion) \
54 ((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \
55 __func__, __FILE__, __LINE__))
56
57
58 int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide,
59 const char *function, char *file, unsigned int line);
60
61 #define gfs2_consist(sdp) \
62 gfs2_consist_i((sdp), 0, __func__, __FILE__, __LINE__)
63
64
65 int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
66 const char *function, char *file, unsigned int line);
67
68 #define gfs2_consist_inode(ip) \
69 gfs2_consist_inode_i((ip), 0, __func__, __FILE__, __LINE__)
70
71
72 int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
73 const char *function, char *file, unsigned int line);
74
75 #define gfs2_consist_rgrpd(rgd) \
76 gfs2_consist_rgrpd_i((rgd), 0, __func__, __FILE__, __LINE__)
77
78
79 int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
80 const char *type, const char *function,
81 char *file, unsigned int line);
82
gfs2_meta_check(struct gfs2_sbd * sdp,struct buffer_head * bh)83 static inline int gfs2_meta_check(struct gfs2_sbd *sdp,
84 struct buffer_head *bh)
85 {
86 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
87 u32 magic = be32_to_cpu(mh->mh_magic);
88 if (unlikely(magic != GFS2_MAGIC)) {
89 pr_err("Magic number missing at %llu\n",
90 (unsigned long long)bh->b_blocknr);
91 return -EIO;
92 }
93 return 0;
94 }
95
96 int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
97 u16 type, u16 t,
98 const char *function,
99 char *file, unsigned int line);
100
gfs2_metatype_check_i(struct gfs2_sbd * sdp,struct buffer_head * bh,u16 type,const char * function,char * file,unsigned int line)101 static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
102 struct buffer_head *bh,
103 u16 type,
104 const char *function,
105 char *file, unsigned int line)
106 {
107 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
108 u32 magic = be32_to_cpu(mh->mh_magic);
109 u16 t = be32_to_cpu(mh->mh_type);
110 if (unlikely(magic != GFS2_MAGIC))
111 return gfs2_meta_check_ii(sdp, bh, "magic number", function,
112 file, line);
113 if (unlikely(t != type))
114 return gfs2_metatype_check_ii(sdp, bh, type, t, function,
115 file, line);
116 return 0;
117 }
118
119 #define gfs2_metatype_check(sdp, bh, type) \
120 gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__)
121
gfs2_metatype_set(struct buffer_head * bh,u16 type,u16 format)122 static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type,
123 u16 format)
124 {
125 struct gfs2_meta_header *mh;
126 mh = (struct gfs2_meta_header *)bh->b_data;
127 mh->mh_type = cpu_to_be32(type);
128 mh->mh_format = cpu_to_be32(format);
129 }
130
131
132 int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
133 char *file, unsigned int line);
134
135 #define gfs2_io_error(sdp) \
136 gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__);
137
138
139 void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
140 const char *function, char *file, unsigned int line,
141 bool withdraw);
142
143 #define gfs2_io_error_bh_wd(sdp, bh) \
144 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, true);
145
146 #define gfs2_io_error_bh(sdp, bh) \
147 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, false);
148
149
150 extern struct kmem_cache *gfs2_glock_cachep;
151 extern struct kmem_cache *gfs2_glock_aspace_cachep;
152 extern struct kmem_cache *gfs2_inode_cachep;
153 extern struct kmem_cache *gfs2_bufdata_cachep;
154 extern struct kmem_cache *gfs2_rgrpd_cachep;
155 extern struct kmem_cache *gfs2_quotad_cachep;
156 extern struct kmem_cache *gfs2_qadata_cachep;
157 extern mempool_t *gfs2_page_pool;
158 extern struct workqueue_struct *gfs2_control_wq;
159
gfs2_tune_get_i(struct gfs2_tune * gt,unsigned int * p)160 static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
161 unsigned int *p)
162 {
163 unsigned int x;
164 spin_lock(>->gt_spin);
165 x = *p;
166 spin_unlock(>->gt_spin);
167 return x;
168 }
169
170 #define gfs2_tune_get(sdp, field) \
171 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
172
173 __printf(2, 3)
174 int gfs2_lm_withdraw(struct gfs2_sbd *sdp, const char *fmt, ...);
175
176 #endif /* __UTIL_DOT_H__ */
177