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 int 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 ((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \ 44 __func__, __FILE__, __LINE__)) 45 46 47 int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion, 48 const char *function, char *file, unsigned int line); 49 50 #define gfs2_assert_warn(sdp, assertion) \ 51 ((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \ 52 __func__, __FILE__, __LINE__)) 53 54 55 int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide, 56 const char *function, char *file, unsigned int line); 57 58 #define gfs2_consist(sdp) \ 59 gfs2_consist_i((sdp), 0, __func__, __FILE__, __LINE__) 60 61 62 int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide, 63 const char *function, char *file, unsigned int line); 64 65 #define gfs2_consist_inode(ip) \ 66 gfs2_consist_inode_i((ip), 0, __func__, __FILE__, __LINE__) 67 68 69 int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide, 70 const char *function, char *file, unsigned int line); 71 72 #define gfs2_consist_rgrpd(rgd) \ 73 gfs2_consist_rgrpd_i((rgd), 0, __func__, __FILE__, __LINE__) 74 75 76 int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 77 const char *type, const char *function, 78 char *file, unsigned int line); 79 80 static inline int gfs2_meta_check(struct gfs2_sbd *sdp, 81 struct buffer_head *bh) 82 { 83 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 84 u32 magic = be32_to_cpu(mh->mh_magic); 85 if (unlikely(magic != GFS2_MAGIC)) { 86 fs_err(sdp, "Magic number missing at %llu\n", 87 (unsigned long long)bh->b_blocknr); 88 return -EIO; 89 } 90 return 0; 91 } 92 93 int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 94 u16 type, u16 t, 95 const char *function, 96 char *file, unsigned int line); 97 98 static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp, 99 struct buffer_head *bh, 100 u16 type, 101 const char *function, 102 char *file, unsigned int line) 103 { 104 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 105 u32 magic = be32_to_cpu(mh->mh_magic); 106 u16 t = be32_to_cpu(mh->mh_type); 107 if (unlikely(magic != GFS2_MAGIC)) 108 return gfs2_meta_check_ii(sdp, bh, "magic number", function, 109 file, line); 110 if (unlikely(t != type)) 111 return gfs2_metatype_check_ii(sdp, bh, type, t, function, 112 file, line); 113 return 0; 114 } 115 116 #define gfs2_metatype_check(sdp, bh, type) \ 117 gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__) 118 119 static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type, 120 u16 format) 121 { 122 struct gfs2_meta_header *mh; 123 mh = (struct gfs2_meta_header *)bh->b_data; 124 mh->mh_type = cpu_to_be32(type); 125 mh->mh_format = cpu_to_be32(format); 126 } 127 128 129 int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, 130 char *file, unsigned int line); 131 132 #define gfs2_io_error(sdp) \ 133 gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__); 134 135 136 void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh, 137 const char *function, char *file, unsigned int line, 138 bool withdraw); 139 140 #define gfs2_io_error_bh_wd(sdp, bh) \ 141 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, true); 142 143 #define gfs2_io_error_bh(sdp, bh) \ 144 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, false); 145 146 147 extern struct kmem_cache *gfs2_glock_cachep; 148 extern struct kmem_cache *gfs2_glock_aspace_cachep; 149 extern struct kmem_cache *gfs2_inode_cachep; 150 extern struct kmem_cache *gfs2_bufdata_cachep; 151 extern struct kmem_cache *gfs2_rgrpd_cachep; 152 extern struct kmem_cache *gfs2_quotad_cachep; 153 extern struct kmem_cache *gfs2_qadata_cachep; 154 extern mempool_t *gfs2_page_pool; 155 extern struct workqueue_struct *gfs2_control_wq; 156 157 static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt, 158 unsigned int *p) 159 { 160 unsigned int x; 161 spin_lock(>->gt_spin); 162 x = *p; 163 spin_unlock(>->gt_spin); 164 return x; 165 } 166 167 /** 168 * gfs2_withdrawn - test whether the file system is withdrawing or withdrawn 169 * @sdp: the superblock 170 */ 171 static inline bool gfs2_withdrawn(struct gfs2_sbd *sdp) 172 { 173 return test_bit(SDF_WITHDRAWN, &sdp->sd_flags); 174 } 175 176 #define gfs2_tune_get(sdp, field) \ 177 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field) 178 179 __printf(2, 3) 180 int gfs2_lm_withdraw(struct gfs2_sbd *sdp, const char *fmt, ...); 181 182 #endif /* __UTIL_DOT_H__ */ 183