This source file includes following definitions.
- gfs2_meta_check
- gfs2_metatype_check_i
- gfs2_metatype_set
- gfs2_tune_get_i
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7 #ifndef __UTIL_DOT_H__
8 #define __UTIL_DOT_H__
9
10 #ifdef pr_fmt
11 #undef pr_fmt
12 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
13 #endif
14
15 #include <linux/mempool.h>
16
17 #include "incore.h"
18
19 #define fs_emerg(fs, fmt, ...) \
20 pr_emerg("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
21 #define fs_warn(fs, fmt, ...) \
22 pr_warn("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
23 #define fs_err(fs, fmt, ...) \
24 pr_err("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
25 #define fs_info(fs, fmt, ...) \
26 pr_info("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__)
27
28 void gfs2_assert_i(struct gfs2_sbd *sdp);
29
30 #define gfs2_assert(sdp, assertion) \
31 do { \
32 if (unlikely(!(assertion))) { \
33 gfs2_assert_i(sdp); \
34 BUG(); \
35 } \
36 } while (0)
37
38
39 int 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 __func__, __FILE__, __LINE__))
45
46
47 int 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 __func__, __FILE__, __LINE__))
53
54
55 int 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) \
59 gfs2_consist_i((sdp), 0, __func__, __FILE__, __LINE__)
60
61
62 int 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) \
66 gfs2_consist_inode_i((ip), 0, __func__, __FILE__, __LINE__)
67
68
69 int 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) \
73 gfs2_consist_rgrpd_i((rgd), 0, __func__, __FILE__, __LINE__)
74
75
76 int 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
80 static inline int gfs2_meta_check(struct gfs2_sbd *sdp,
81 struct buffer_head *bh)
82 {
83 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
84 u32 magic = be32_to_cpu(mh->mh_magic);
85 if (unlikely(magic != GFS2_MAGIC)) {
86 fs_err(sdp, "Magic number missing at %llu\n",
87 (unsigned long long)bh->b_blocknr);
88 return -EIO;
89 }
90 return 0;
91 }
92
93 int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
94 u16 type, u16 t,
95 const char *function,
96 char *file, unsigned int line);
97
98 static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
99 struct buffer_head *bh,
100 u16 type,
101 const char *function,
102 char *file, unsigned int line)
103 {
104 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
105 u32 magic = be32_to_cpu(mh->mh_magic);
106 u16 t = be32_to_cpu(mh->mh_type);
107 if (unlikely(magic != GFS2_MAGIC))
108 return gfs2_meta_check_ii(sdp, bh, "magic number", function,
109 file, line);
110 if (unlikely(t != type))
111 return gfs2_metatype_check_ii(sdp, bh, type, t, function,
112 file, line);
113 return 0;
114 }
115
116 #define gfs2_metatype_check(sdp, bh, type) \
117 gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__)
118
119 static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type,
120 u16 format)
121 {
122 struct gfs2_meta_header *mh;
123 mh = (struct gfs2_meta_header *)bh->b_data;
124 mh->mh_type = cpu_to_be32(type);
125 mh->mh_format = cpu_to_be32(format);
126 }
127
128
129 int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
130 char *file, unsigned int line);
131
132 #define gfs2_io_error(sdp) \
133 gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__);
134
135
136 void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
137 const char *function, char *file, unsigned int line,
138 bool withdraw);
139
140 #define gfs2_io_error_bh_wd(sdp, bh) \
141 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, true);
142
143 #define gfs2_io_error_bh(sdp, bh) \
144 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, false);
145
146
147 extern struct kmem_cache *gfs2_glock_cachep;
148 extern struct kmem_cache *gfs2_glock_aspace_cachep;
149 extern struct kmem_cache *gfs2_inode_cachep;
150 extern struct kmem_cache *gfs2_bufdata_cachep;
151 extern struct kmem_cache *gfs2_rgrpd_cachep;
152 extern struct kmem_cache *gfs2_quotad_cachep;
153 extern struct kmem_cache *gfs2_qadata_cachep;
154 extern mempool_t *gfs2_page_pool;
155 extern struct workqueue_struct *gfs2_control_wq;
156
157 static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
158 unsigned int *p)
159 {
160 unsigned int x;
161 spin_lock(>->gt_spin);
162 x = *p;
163 spin_unlock(>->gt_spin);
164 return x;
165 }
166
167 #define gfs2_tune_get(sdp, field) \
168 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
169
170 __printf(2, 3)
171 int gfs2_lm_withdraw(struct gfs2_sbd *sdp, const char *fmt, ...);
172
173 #endif