1 /* 2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 3 * Copyright (C) 2004-2005 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 v.2. 8 */ 9 10 #ifndef __UTIL_DOT_H__ 11 #define __UTIL_DOT_H__ 12 13 uint32_t gfs2_disk_hash(const char *data, int len); 14 15 16 #define fs_printk(level, fs, fmt, arg...) \ 17 printk(level "GFS2: fsid=%s: " fmt , (fs)->sd_fsname , ## arg) 18 19 #define fs_info(fs, fmt, arg...) \ 20 fs_printk(KERN_INFO , fs , fmt , ## arg) 21 22 #define fs_warn(fs, fmt, arg...) \ 23 fs_printk(KERN_WARNING , fs , fmt , ## arg) 24 25 #define fs_err(fs, fmt, arg...) \ 26 fs_printk(KERN_ERR, fs , fmt , ## arg) 27 28 29 void gfs2_assert_i(struct gfs2_sbd *sdp); 30 31 #define gfs2_assert(sdp, assertion) \ 32 do { \ 33 if (unlikely(!(assertion))) { \ 34 gfs2_assert_i(sdp); \ 35 BUG(); \ 36 } \ 37 } while (0) 38 39 40 int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion, 41 const char *function, char *file, unsigned int line); 42 43 #define gfs2_assert_withdraw(sdp, assertion) \ 44 ((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \ 45 __FUNCTION__, __FILE__, __LINE__)) 46 47 48 int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion, 49 const char *function, char *file, unsigned int line); 50 51 #define gfs2_assert_warn(sdp, assertion) \ 52 ((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \ 53 __FUNCTION__, __FILE__, __LINE__)) 54 55 56 int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide, 57 const char *function, char *file, unsigned int line); 58 59 #define gfs2_consist(sdp) \ 60 gfs2_consist_i((sdp), 0, __FUNCTION__, __FILE__, __LINE__) 61 62 63 int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide, 64 const char *function, char *file, unsigned int line); 65 66 #define gfs2_consist_inode(ip) \ 67 gfs2_consist_inode_i((ip), 0, __FUNCTION__, __FILE__, __LINE__) 68 69 70 int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide, 71 const char *function, char *file, unsigned int line); 72 73 #define gfs2_consist_rgrpd(rgd) \ 74 gfs2_consist_rgrpd_i((rgd), 0, __FUNCTION__, __FILE__, __LINE__) 75 76 77 int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 78 const char *type, const char *function, 79 char *file, unsigned int line); 80 81 static inline int gfs2_meta_check_i(struct gfs2_sbd *sdp, 82 struct buffer_head *bh, 83 const char *function, 84 char *file, unsigned int line) 85 { 86 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 87 uint32_t magic = mh->mh_magic; 88 magic = be32_to_cpu(magic); 89 if (unlikely(magic != GFS2_MAGIC)) 90 return gfs2_meta_check_ii(sdp, bh, "magic number", function, 91 file, line); 92 return 0; 93 } 94 95 #define gfs2_meta_check(sdp, bh) \ 96 gfs2_meta_check_i((sdp), (bh), __FUNCTION__, __FILE__, __LINE__) 97 98 99 int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 100 uint16_t type, uint16_t t, 101 const char *function, 102 char *file, unsigned int line); 103 104 static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp, 105 struct buffer_head *bh, 106 uint16_t type, 107 const char *function, 108 char *file, unsigned int line) 109 { 110 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 111 uint32_t magic = mh->mh_magic; 112 uint16_t t = mh->mh_type; 113 magic = be32_to_cpu(magic); 114 if (unlikely(magic != GFS2_MAGIC)) 115 return gfs2_meta_check_ii(sdp, bh, "magic number", function, 116 file, line); 117 t = be16_to_cpu(t); 118 if (unlikely(t != type)) 119 return gfs2_metatype_check_ii(sdp, bh, type, t, function, 120 file, line); 121 return 0; 122 } 123 124 #define gfs2_metatype_check(sdp, bh, type) \ 125 gfs2_metatype_check_i((sdp), (bh), (type), __FUNCTION__, __FILE__, __LINE__) 126 127 static inline void gfs2_metatype_set(struct buffer_head *bh, uint16_t type, 128 uint16_t format) 129 { 130 struct gfs2_meta_header *mh; 131 mh = (struct gfs2_meta_header *)bh->b_data; 132 mh->mh_type = cpu_to_be16(type); 133 mh->mh_format = cpu_to_be16(format); 134 } 135 136 137 int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, 138 char *file, unsigned int line); 139 140 #define gfs2_io_error(sdp) \ 141 gfs2_io_error_i((sdp), __FUNCTION__, __FILE__, __LINE__); 142 143 144 int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh, 145 const char *function, char *file, unsigned int line); 146 147 #define gfs2_io_error_bh(sdp, bh) \ 148 gfs2_io_error_bh_i((sdp), (bh), __FUNCTION__, __FILE__, __LINE__); 149 150 151 extern kmem_cache_t *gfs2_glock_cachep; 152 extern kmem_cache_t *gfs2_inode_cachep; 153 extern kmem_cache_t *gfs2_bufdata_cachep; 154 155 struct gfs2_user_buffer { 156 char __user *ub_data; 157 unsigned int ub_size; 158 unsigned int ub_count; 159 }; 160 161 int gfs2_add_bh_to_ub(struct gfs2_user_buffer *ub, struct buffer_head *bh); 162 163 static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt, 164 unsigned int *p) 165 { 166 unsigned int x; 167 spin_lock(>->gt_spin); 168 x = *p; 169 spin_unlock(>->gt_spin); 170 return x; 171 } 172 173 #define gfs2_tune_get(sdp, field) \ 174 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field) 175 176 void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap, 177 unsigned int bit, int new_value); 178 179 #endif /* __UTIL_DOT_H__ */ 180 181