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_warn(fs, fmt, ...) \ 23 pr_warn("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__) 24 #define fs_err(fs, fmt, ...) \ 25 pr_err("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__) 26 #define fs_info(fs, fmt, ...) \ 27 pr_info("fsid=%s: " fmt, (fs)->sd_fsname, ##__VA_ARGS__) 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 __func__, __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 __func__, __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, __func__, __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, __func__, __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, __func__, __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(struct gfs2_sbd *sdp, 82 struct buffer_head *bh) 83 { 84 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 85 u32 magic = be32_to_cpu(mh->mh_magic); 86 if (unlikely(magic != GFS2_MAGIC)) { 87 pr_err("Magic number missing at %llu\n", 88 (unsigned long long)bh->b_blocknr); 89 return -EIO; 90 } 91 return 0; 92 } 93 94 int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 95 u16 type, u16 t, 96 const char *function, 97 char *file, unsigned int line); 98 99 static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp, 100 struct buffer_head *bh, 101 u16 type, 102 const char *function, 103 char *file, unsigned int line) 104 { 105 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 106 u32 magic = be32_to_cpu(mh->mh_magic); 107 u16 t = be32_to_cpu(mh->mh_type); 108 if (unlikely(magic != GFS2_MAGIC)) 109 return gfs2_meta_check_ii(sdp, bh, "magic number", function, 110 file, line); 111 if (unlikely(t != type)) 112 return gfs2_metatype_check_ii(sdp, bh, type, t, function, 113 file, line); 114 return 0; 115 } 116 117 #define gfs2_metatype_check(sdp, bh, type) \ 118 gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__) 119 120 static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type, 121 u16 format) 122 { 123 struct gfs2_meta_header *mh; 124 mh = (struct gfs2_meta_header *)bh->b_data; 125 mh->mh_type = cpu_to_be32(type); 126 mh->mh_format = cpu_to_be32(format); 127 } 128 129 130 int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, 131 char *file, unsigned int line); 132 133 #define gfs2_io_error(sdp) \ 134 gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__); 135 136 137 int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh, 138 const char *function, char *file, unsigned int line); 139 140 #define gfs2_io_error_bh(sdp, bh) \ 141 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__); 142 143 144 extern struct kmem_cache *gfs2_glock_cachep; 145 extern struct kmem_cache *gfs2_glock_aspace_cachep; 146 extern struct kmem_cache *gfs2_inode_cachep; 147 extern struct kmem_cache *gfs2_bufdata_cachep; 148 extern struct kmem_cache *gfs2_rgrpd_cachep; 149 extern struct kmem_cache *gfs2_quotad_cachep; 150 extern struct kmem_cache *gfs2_rsrv_cachep; 151 extern mempool_t *gfs2_page_pool; 152 153 static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt, 154 unsigned int *p) 155 { 156 unsigned int x; 157 spin_lock(>->gt_spin); 158 x = *p; 159 spin_unlock(>->gt_spin); 160 return x; 161 } 162 163 #define gfs2_tune_get(sdp, field) \ 164 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field) 165 166 int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...); 167 168 #endif /* __UTIL_DOT_H__ */ 169 170