Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
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#include <linux/mempool.h>
14
15#include "incore.h"
16
17#define fs_printk(level, fs, fmt, arg...) \
18 printk(level "GFS2: fsid=%s: " fmt , (fs)->sd_fsname , ## arg)
19
20#define fs_info(fs, fmt, arg...) \
21 fs_printk(KERN_INFO , fs , fmt , ## arg)
22
23#define fs_warn(fs, fmt, arg...) \
24 fs_printk(KERN_WARNING , fs , fmt , ## arg)
25
26#define fs_err(fs, fmt, arg...) \
27 fs_printk(KERN_ERR, fs , fmt , ## arg)
28
29
30void gfs2_assert_i(struct gfs2_sbd *sdp);
31
32#define gfs2_assert(sdp, assertion) \
33do { \
34 if (unlikely(!(assertion))) { \
35 gfs2_assert_i(sdp); \
36 BUG(); \
37 } \
38} while (0)
39
40
41int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
42 const char *function, char *file, unsigned int line);
43
44#define gfs2_assert_withdraw(sdp, assertion) \
45((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \
46 __func__, __FILE__, __LINE__))
47
48
49int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
50 const char *function, char *file, unsigned int line);
51
52#define gfs2_assert_warn(sdp, assertion) \
53((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \
54 __func__, __FILE__, __LINE__))
55
56
57int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide,
58 const char *function, char *file, unsigned int line);
59
60#define gfs2_consist(sdp) \
61gfs2_consist_i((sdp), 0, __func__, __FILE__, __LINE__)
62
63
64int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
65 const char *function, char *file, unsigned int line);
66
67#define gfs2_consist_inode(ip) \
68gfs2_consist_inode_i((ip), 0, __func__, __FILE__, __LINE__)
69
70
71int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
72 const char *function, char *file, unsigned int line);
73
74#define gfs2_consist_rgrpd(rgd) \
75gfs2_consist_rgrpd_i((rgd), 0, __func__, __FILE__, __LINE__)
76
77
78int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
79 const char *type, const char *function,
80 char *file, unsigned int line);
81
82static inline int gfs2_meta_check(struct gfs2_sbd *sdp,
83 struct buffer_head *bh)
84{
85 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
86 u32 magic = be32_to_cpu(mh->mh_magic);
87 if (unlikely(magic != GFS2_MAGIC)) {
88 printk(KERN_ERR "GFS2: Magic number missing at %llu\n",
89 (unsigned long long)bh->b_blocknr);
90 return -EIO;
91 }
92 return 0;
93}
94
95int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
96 u16 type, u16 t,
97 const char *function,
98 char *file, unsigned int line);
99
100static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
101 struct buffer_head *bh,
102 u16 type,
103 const char *function,
104 char *file, unsigned int line)
105{
106 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data;
107 u32 magic = be32_to_cpu(mh->mh_magic);
108 u16 t = be32_to_cpu(mh->mh_type);
109 if (unlikely(magic != GFS2_MAGIC))
110 return gfs2_meta_check_ii(sdp, bh, "magic number", function,
111 file, line);
112 if (unlikely(t != type))
113 return gfs2_metatype_check_ii(sdp, bh, type, t, function,
114 file, line);
115 return 0;
116}
117
118#define gfs2_metatype_check(sdp, bh, type) \
119gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__)
120
121static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type,
122 u16 format)
123{
124 struct gfs2_meta_header *mh;
125 mh = (struct gfs2_meta_header *)bh->b_data;
126 mh->mh_type = cpu_to_be32(type);
127 mh->mh_format = cpu_to_be32(format);
128}
129
130
131int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
132 char *file, unsigned int line);
133
134#define gfs2_io_error(sdp) \
135gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__);
136
137
138int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
139 const char *function, char *file, unsigned int line);
140
141#define gfs2_io_error_bh(sdp, bh) \
142gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__);
143
144
145extern struct kmem_cache *gfs2_glock_cachep;
146extern struct kmem_cache *gfs2_glock_aspace_cachep;
147extern struct kmem_cache *gfs2_inode_cachep;
148extern struct kmem_cache *gfs2_bufdata_cachep;
149extern struct kmem_cache *gfs2_rgrpd_cachep;
150extern struct kmem_cache *gfs2_quotad_cachep;
151extern struct kmem_cache *gfs2_rsrv_cachep;
152extern mempool_t *gfs2_page_pool;
153
154static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
155 unsigned int *p)
156{
157 unsigned int x;
158 spin_lock(>->gt_spin);
159 x = *p;
160 spin_unlock(>->gt_spin);
161 return x;
162}
163
164#define gfs2_tune_get(sdp, field) \
165gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
166
167void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
168 unsigned int bit, int new_value);
169int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...);
170
171#endif /* __UTIL_DOT_H__ */
172