Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
[linux/fpc-iii.git] / fs / gfs2 / util.h
blobb7ffb09b99ea2d231011b92c21fa64a3e0bcfa6d
1 /*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
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 */
10 #ifndef __UTIL_DOT_H__
11 #define __UTIL_DOT_H__
13 #include <linux/mempool.h>
15 #include "incore.h"
17 #define fs_printk(level, fs, fmt, arg...) \
18 printk(level "GFS2: fsid=%s: " fmt , (fs)->sd_fsname , ## arg)
20 #define fs_info(fs, fmt, arg...) \
21 fs_printk(KERN_INFO , fs , fmt , ## arg)
23 #define fs_warn(fs, fmt, arg...) \
24 fs_printk(KERN_WARNING , fs , fmt , ## arg)
26 #define fs_err(fs, fmt, arg...) \
27 fs_printk(KERN_ERR, fs , fmt , ## arg)
30 void gfs2_assert_i(struct gfs2_sbd *sdp);
32 #define gfs2_assert(sdp, assertion) \
33 do { \
34 if (unlikely(!(assertion))) { \
35 gfs2_assert_i(sdp); \
36 BUG(); \
37 } \
38 } while (0)
41 int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
42 const char *function, char *file, unsigned int line);
44 #define gfs2_assert_withdraw(sdp, assertion) \
45 ((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \
46 __func__, __FILE__, __LINE__))
49 int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
50 const char *function, char *file, unsigned int line);
52 #define gfs2_assert_warn(sdp, assertion) \
53 ((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \
54 __func__, __FILE__, __LINE__))
57 int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide,
58 const char *function, char *file, unsigned int line);
60 #define gfs2_consist(sdp) \
61 gfs2_consist_i((sdp), 0, __func__, __FILE__, __LINE__)
64 int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide,
65 const char *function, char *file, unsigned int line);
67 #define gfs2_consist_inode(ip) \
68 gfs2_consist_inode_i((ip), 0, __func__, __FILE__, __LINE__)
71 int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
72 const char *function, char *file, unsigned int line);
74 #define gfs2_consist_rgrpd(rgd) \
75 gfs2_consist_rgrpd_i((rgd), 0, __func__, __FILE__, __LINE__)
78 int 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);
82 static inline int gfs2_meta_check(struct gfs2_sbd *sdp,
83 struct buffer_head *bh)
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;
92 return 0;
95 int 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);
100 static 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)
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;
118 #define gfs2_metatype_check(sdp, bh, type) \
119 gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__)
121 static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type,
122 u16 format)
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);
131 int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
132 char *file, unsigned int line);
134 #define gfs2_io_error(sdp) \
135 gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__);
138 int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
139 const char *function, char *file, unsigned int line);
141 #define gfs2_io_error_bh(sdp, bh) \
142 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__);
145 extern struct kmem_cache *gfs2_glock_cachep;
146 extern struct kmem_cache *gfs2_glock_aspace_cachep;
147 extern struct kmem_cache *gfs2_inode_cachep;
148 extern struct kmem_cache *gfs2_bufdata_cachep;
149 extern struct kmem_cache *gfs2_rgrpd_cachep;
150 extern struct kmem_cache *gfs2_quotad_cachep;
151 extern struct kmem_cache *gfs2_rsrv_cachep;
152 extern mempool_t *gfs2_page_pool;
154 static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
155 unsigned int *p)
157 unsigned int x;
158 spin_lock(&gt->gt_spin);
159 x = *p;
160 spin_unlock(&gt->gt_spin);
161 return x;
164 #define gfs2_tune_get(sdp, field) \
165 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
167 int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...);
169 #endif /* __UTIL_DOT_H__ */