1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 4 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 5 */ 6 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 void 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 ({ \ 44 bool _bool = (assertion); \ 45 if (unlikely(!_bool)) \ 46 gfs2_assert_withdraw_i((sdp), #assertion, \ 47 __func__, __FILE__, __LINE__); \ 48 !_bool; \ 49 }) 50 51 void gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion, 52 const char *function, char *file, unsigned int line); 53 54 #define gfs2_assert_warn(sdp, assertion) \ 55 ({ \ 56 bool _bool = (assertion); \ 57 if (unlikely(!_bool)) \ 58 gfs2_assert_warn_i((sdp), #assertion, \ 59 __func__, __FILE__, __LINE__); \ 60 !_bool; \ 61 }) 62 63 void gfs2_consist_i(struct gfs2_sbd *sdp, 64 const char *function, char *file, unsigned int line); 65 66 #define gfs2_consist(sdp) \ 67 gfs2_consist_i((sdp), __func__, __FILE__, __LINE__) 68 69 70 void gfs2_consist_inode_i(struct gfs2_inode *ip, 71 const char *function, char *file, unsigned int line); 72 73 #define gfs2_consist_inode(ip) \ 74 gfs2_consist_inode_i((ip), __func__, __FILE__, __LINE__) 75 76 77 void gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, 78 const char *function, char *file, unsigned int line); 79 80 #define gfs2_consist_rgrpd(rgd) \ 81 gfs2_consist_rgrpd_i((rgd), __func__, __FILE__, __LINE__) 82 83 84 int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 85 const char *type, const char *function, 86 char *file, unsigned int line); 87 88 static inline int gfs2_meta_check(struct gfs2_sbd *sdp, 89 struct buffer_head *bh) 90 { 91 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 92 u32 magic = be32_to_cpu(mh->mh_magic); 93 if (unlikely(magic != GFS2_MAGIC)) { 94 fs_err(sdp, "Magic number missing at %llu\n", 95 (unsigned long long)bh->b_blocknr); 96 return -EIO; 97 } 98 return 0; 99 } 100 101 int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 102 u16 type, u16 t, 103 const char *function, 104 char *file, unsigned int line); 105 106 static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp, 107 struct buffer_head *bh, 108 u16 type, 109 const char *function, 110 char *file, unsigned int line) 111 { 112 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 113 u32 magic = be32_to_cpu(mh->mh_magic); 114 u16 t = be32_to_cpu(mh->mh_type); 115 if (unlikely(magic != GFS2_MAGIC)) 116 return gfs2_meta_check_ii(sdp, bh, "magic number", function, 117 file, line); 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), __func__, __FILE__, __LINE__) 126 127 static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type, 128 u16 format) 129 { 130 struct gfs2_meta_header *mh; 131 mh = (struct gfs2_meta_header *)bh->b_data; 132 mh->mh_type = cpu_to_be32(type); 133 mh->mh_format = cpu_to_be32(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), __func__, __FILE__, __LINE__); 142 143 144 void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh, 145 const char *function, char *file, unsigned int line, 146 bool withdraw); 147 148 #define gfs2_io_error_bh_wd(sdp, bh) \ 149 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, true); 150 151 #define gfs2_io_error_bh(sdp, bh) \ 152 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, false); 153 154 155 extern struct kmem_cache *gfs2_glock_cachep; 156 extern struct kmem_cache *gfs2_glock_aspace_cachep; 157 extern struct kmem_cache *gfs2_inode_cachep; 158 extern struct kmem_cache *gfs2_bufdata_cachep; 159 extern struct kmem_cache *gfs2_rgrpd_cachep; 160 extern struct kmem_cache *gfs2_quotad_cachep; 161 extern struct kmem_cache *gfs2_qadata_cachep; 162 extern mempool_t *gfs2_page_pool; 163 extern struct workqueue_struct *gfs2_control_wq; 164 165 static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt, 166 unsigned int *p) 167 { 168 unsigned int x; 169 spin_lock(>->gt_spin); 170 x = *p; 171 spin_unlock(>->gt_spin); 172 return x; 173 } 174 175 /** 176 * gfs2_withdraw_delayed - withdraw as soon as possible without deadlocks 177 * @sdp: the superblock 178 */ 179 static inline void gfs2_withdraw_delayed(struct gfs2_sbd *sdp) 180 { 181 set_bit(SDF_WITHDRAWING, &sdp->sd_flags); 182 } 183 184 /** 185 * gfs2_withdrawn - test whether the file system is withdrawing or withdrawn 186 * @sdp: the superblock 187 */ 188 static inline bool gfs2_withdrawn(struct gfs2_sbd *sdp) 189 { 190 return test_bit(SDF_WITHDRAWN, &sdp->sd_flags) || 191 test_bit(SDF_WITHDRAWING, &sdp->sd_flags); 192 } 193 194 #define gfs2_tune_get(sdp, field) \ 195 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field) 196 197 __printf(2, 3) 198 void gfs2_lm(struct gfs2_sbd *sdp, const char *fmt, ...); 199 int gfs2_withdraw(struct gfs2_sbd *sdp); 200 201 #endif /* __UTIL_DOT_H__ */ 202