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 #include <linux/mempool.h> 14 15 #include "incore.h" 16 17 #define fs_printk(level, fs, fmt, arg...) \ 18 printk(level "GFS2: fsid=%s: " fmt , (fs)->sd_fsname , ## arg) 19 20 #define fs_info(fs, fmt, arg...) \ 21 fs_printk(KERN_INFO , fs , fmt , ## arg) 22 23 #define fs_warn(fs, fmt, arg...) \ 24 fs_printk(KERN_WARNING , fs , fmt , ## arg) 25 26 #define fs_err(fs, fmt, arg...) \ 27 fs_printk(KERN_ERR, fs , fmt , ## arg) 28 29 30 void gfs2_assert_i(struct gfs2_sbd *sdp); 31 32 #define gfs2_assert(sdp, assertion) \ 33 do { \ 34 if (unlikely(!(assertion))) { \ 35 gfs2_assert_i(sdp); \ 36 BUG(); \ 37 } \ 38 } while (0) 39 40 41 int gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion, 42 const char *function, char *file, unsigned int line); 43 44 #define gfs2_assert_withdraw(sdp, assertion) \ 45 ((likely(assertion)) ? 0 : gfs2_assert_withdraw_i((sdp), #assertion, \ 46 __func__, __FILE__, __LINE__)) 47 48 49 int gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion, 50 const char *function, char *file, unsigned int line); 51 52 #define gfs2_assert_warn(sdp, assertion) \ 53 ((likely(assertion)) ? 0 : gfs2_assert_warn_i((sdp), #assertion, \ 54 __func__, __FILE__, __LINE__)) 55 56 57 int gfs2_consist_i(struct gfs2_sbd *sdp, int cluster_wide, 58 const char *function, char *file, unsigned int line); 59 60 #define gfs2_consist(sdp) \ 61 gfs2_consist_i((sdp), 0, __func__, __FILE__, __LINE__) 62 63 64 int gfs2_consist_inode_i(struct gfs2_inode *ip, int cluster_wide, 65 const char *function, char *file, unsigned int line); 66 67 #define gfs2_consist_inode(ip) \ 68 gfs2_consist_inode_i((ip), 0, __func__, __FILE__, __LINE__) 69 70 71 int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide, 72 const char *function, char *file, unsigned int line); 73 74 #define gfs2_consist_rgrpd(rgd) \ 75 gfs2_consist_rgrpd_i((rgd), 0, __func__, __FILE__, __LINE__) 76 77 78 int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 79 const char *type, const char *function, 80 char *file, unsigned int line); 81 82 static inline int gfs2_meta_check(struct gfs2_sbd *sdp, 83 struct buffer_head *bh) 84 { 85 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 86 u32 magic = be32_to_cpu(mh->mh_magic); 87 if (unlikely(magic != GFS2_MAGIC)) { 88 printk(KERN_ERR "GFS2: Magic number missing at %llu\n", 89 (unsigned long long)bh->b_blocknr); 90 return -EIO; 91 } 92 return 0; 93 } 94 95 int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh, 96 u16 type, u16 t, 97 const char *function, 98 char *file, unsigned int line); 99 100 static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp, 101 struct buffer_head *bh, 102 u16 type, 103 const char *function, 104 char *file, unsigned int line) 105 { 106 struct gfs2_meta_header *mh = (struct gfs2_meta_header *)bh->b_data; 107 u32 magic = be32_to_cpu(mh->mh_magic); 108 u16 t = be32_to_cpu(mh->mh_type); 109 if (unlikely(magic != GFS2_MAGIC)) 110 return gfs2_meta_check_ii(sdp, bh, "magic number", function, 111 file, line); 112 if (unlikely(t != type)) 113 return gfs2_metatype_check_ii(sdp, bh, type, t, function, 114 file, line); 115 return 0; 116 } 117 118 #define gfs2_metatype_check(sdp, bh, type) \ 119 gfs2_metatype_check_i((sdp), (bh), (type), __func__, __FILE__, __LINE__) 120 121 static inline void gfs2_metatype_set(struct buffer_head *bh, u16 type, 122 u16 format) 123 { 124 struct gfs2_meta_header *mh; 125 mh = (struct gfs2_meta_header *)bh->b_data; 126 mh->mh_type = cpu_to_be32(type); 127 mh->mh_format = cpu_to_be32(format); 128 } 129 130 131 int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, 132 char *file, unsigned int line); 133 134 #define gfs2_io_error(sdp) \ 135 gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__); 136 137 138 int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh, 139 const char *function, char *file, unsigned int line); 140 141 #define gfs2_io_error_bh(sdp, bh) \ 142 gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__); 143 144 145 extern struct kmem_cache *gfs2_glock_cachep; 146 extern struct kmem_cache *gfs2_glock_aspace_cachep; 147 extern struct kmem_cache *gfs2_inode_cachep; 148 extern struct kmem_cache *gfs2_bufdata_cachep; 149 extern struct kmem_cache *gfs2_rgrpd_cachep; 150 extern struct kmem_cache *gfs2_quotad_cachep; 151 extern struct kmem_cache *gfs2_rsrv_cachep; 152 extern mempool_t *gfs2_page_pool; 153 154 static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt, 155 unsigned int *p) 156 { 157 unsigned int x; 158 spin_lock(>->gt_spin); 159 x = *p; 160 spin_unlock(>->gt_spin); 161 return x; 162 } 163 164 #define gfs2_tune_get(sdp, field) \ 165 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field) 166 167 void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap, 168 unsigned int bit, int new_value); 169 int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...); 170 171 #endif /* __UTIL_DOT_H__ */ 172 173