1 /* 2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 3 * Copyright (C) 2004-2006 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 version 2. 8 */ 9 10 #ifndef __UTIL_DOT_H__ 11 #define __UTIL_DOT_H__ 12 13 #ifdef pr_fmt 14 #undef pr_fmt 15 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 16 #endif 17 18 #include <linux/mempool.h> 19 20 #include "incore.h" 21 22 #define fs_emerg(fs, fmt, ...) \ 23 pr_emerg("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__) 24 #define fs_warn(fs, fmt, ...) \ 25 pr_warn("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__) 26 #define fs_err(fs, fmt, ...) \ 27 pr_err("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__) 28 #define fs_info(fs, fmt, ...) \ 29 pr_info("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__) 30 31 void gfs2_assert_i(struct gfs2_sbd *sdp); 32 33 #define gfs2_assert(sdp, assertion) \ 34 do { \ 35 if (unlikely(!(assertion))) { \ 36 gfs2_assert_i(sdp); \ 37 BUG(); \ 38 } \ 39 } while (0) 40 41 42 int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion, 43 const char *function, char *file, unsigned int line); 44 45 #define gfs2_assert_withdraw(sdp, assertion) \ 46 ((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \ 47 __func__, __FILE__, __LINE__)) 48 49 50 int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion, 51 const char *function, char *file, unsigned int line); 52 53 #define gfs2_assert_warn(sdp, assertion) \ 54 ((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \ 55 __func__, __FILE__, __LINE__)) 56 57 58 int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide, 59 const char *function, char *file, unsigned int line); 60 61 #define gfs2_consist(sdp) \ 62 gfs2_consist_i((sdp), 0, __func__, __FILE__, __LINE__) 63 64 65 int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide, 66 const char *function, char *file, unsigned int line); 67 68 #define gfs2_consist_inode(ip) \ 69 gfs2_consist_inode_i((ip), 0, __func__, __FILE__, __LINE__) 70 71 72 int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide, 73 const char *function, char *file, unsigned int line); 74 75 #define gfs2_consist_rgrpd(rgd) \ 76 gfs2_consist_rgrpd_i((rgd), 0, __func__, __FILE__, __LINE__) 77 78 79 int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 80 const char *type, const char *function, 81 char *file, unsigned int line); 82 83 static inline int gfs2_meta_check(struct gfs2_sbd *sdp, 84 struct buffer_head *bh) 85 { 86 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 87 u32 magic = be32_to_cpu(mh->mh_magic); 88 if (unlikely(magic != GFS2_MAGIC)) { 89 fs_err(sdp, "Magic number missing at %llu\n", 90 (unsigned long long)bh->b_blocknr); 91 return -EIO; 92 } 93 return 0; 94 } 95 96 int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 97 u16 type, u16 t, 98 const char *function, 99 char *file, unsigned int line); 100 101 static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp, 102 struct buffer_head *bh, 103 u16 type, 104 const char *function, 105 char *file, unsigned int line) 106 { 107 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 108 u32 magic = be32_to_cpu(mh->mh_magic); 109 u16 t = be32_to_cpu(mh->mh_type); 110 if (unlikely(magic != GFS2_MAGIC)) 111 return gfs2_meta_check_ii(sdp, bh, "magic number", function, 112 file, line); 113 if (unlikely(t != type)) 114 return gfs2_metatype_check_ii(sdp, bh, type, t, function, 115 file, line); 116 return 0; 117 } 118 119 #define gfs2_metatype_check(sdp, bh, type) \ 120 gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__) 121 122 static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type, 123 u16 format) 124 { 125 struct gfs2_meta_header *mh; 126 mh = (struct gfs2_meta_header *)bh->b_data; 127 mh->mh_type = cpu_to_be32(type); 128 mh->mh_format = cpu_to_be32(format); 129 } 130 131 132 int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, 133 char *file, unsigned int line); 134 135 #define gfs2_io_error(sdp) \ 136 gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__); 137 138 139 void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh, 140 const char *function, char *file, unsigned int line, 141 bool withdraw); 142 143 #define gfs2_io_error_bh_wd(sdp, bh) \ 144 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, true); 145 146 #define gfs2_io_error_bh(sdp, bh) \ 147 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__, false); 148 149 150 extern struct kmem_cache *gfs2_glock_cachep; 151 extern struct kmem_cache *gfs2_glock_aspace_cachep; 152 extern struct kmem_cache *gfs2_inode_cachep; 153 extern struct kmem_cache *gfs2_bufdata_cachep; 154 extern struct kmem_cache *gfs2_rgrpd_cachep; 155 extern struct kmem_cache *gfs2_quotad_cachep; 156 extern struct kmem_cache *gfs2_qadata_cachep; 157 extern mempool_t *gfs2_page_pool; 158 extern struct workqueue_struct *gfs2_control_wq; 159 160 static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt, 161 unsigned int *p) 162 { 163 unsigned int x; 164 spin_lock(>->gt_spin); 165 x = *p; 166 spin_unlock(>->gt_spin); 167 return x; 168 } 169 170 #define gfs2_tune_get(sdp, field) \ 171 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field) 172 173 __printf(2, 3) 174 int gfs2_lm_withdraw(struct gfs2_sbd *sdp, const char *fmt, ...); 175 176 #endif /* __UTIL_DOT_H__ */ 177