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 void gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 85 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 void 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 gfs2_meta_check_ii(sdp, bh, function, 117 file, line); 118 return -EIO; 119 } 120 if (unlikely(t != type)) { 121 gfs2_metatype_check_ii(sdp, bh, type, t, function, 122 file, line); 123 return -EIO; 124 } 125 return 0; 126 } 127 128 #define gfs2_metatype_check(sdp, bh, type) \ 129 gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__) 130 131 static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type, 132 u16 format) 133 { 134 struct gfs2_meta_header *mh; 135 mh = (struct gfs2_meta_header *)bh->b_data; 136 mh->mh_type = cpu_to_be32(type); 137 mh->mh_format = cpu_to_be32(format); 138 } 139 140 141 void gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, 142 char *file, unsigned int line); 143 144 int check_journal_clean(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd, 145 bool verbose); 146 int gfs2_freeze_lock_shared(struct gfs2_sbd *sdp); 147 void gfs2_freeze_unlock(struct gfs2_sbd *sdp); 148 149 #define gfs2_io_error(sdp) \ 150 gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__) 151 152 153 void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh, 154 const char *function, char *file, unsigned int line); 155 156 #define gfs2_io_error_bh(sdp, bh) \ 157 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__) 158 159 160 extern struct kmem_cache *gfs2_glock_cachep; 161 extern struct kmem_cache *gfs2_glock_aspace_cachep; 162 extern struct kmem_cache *gfs2_inode_cachep; 163 extern struct kmem_cache *gfs2_bufdata_cachep; 164 extern struct kmem_cache *gfs2_rgrpd_cachep; 165 extern struct kmem_cache *gfs2_quotad_cachep; 166 extern struct kmem_cache *gfs2_qadata_cachep; 167 extern struct kmem_cache *gfs2_trans_cachep; 168 extern mempool_t *gfs2_page_pool; 169 extern struct workqueue_struct *gfs2_control_wq; 170 171 static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt, 172 unsigned int *p) 173 { 174 unsigned int x; 175 spin_lock(>->gt_spin); 176 x = *p; 177 spin_unlock(>->gt_spin); 178 return x; 179 } 180 181 /** 182 * gfs2_withdrawn - test whether the file system is withdrawn 183 * @sdp: the superblock 184 */ 185 static inline bool gfs2_withdrawn(struct gfs2_sbd *sdp) 186 { 187 return unlikely(test_bit(SDF_WITHDRAWN, &sdp->sd_flags)); 188 } 189 190 #define gfs2_tune_get(sdp, field) \ 191 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field) 192 193 __printf(2, 3) 194 void gfs2_lm(struct gfs2_sbd *sdp, const char *fmt, ...); 195 196 void gfs2_withdraw_func(struct work_struct *work); 197 void gfs2_withdraw(struct gfs2_sbd *sdp); 198 199 #endif /* __UTIL_DOT_H__ */ 200