| 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 | pr_err("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 | int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh, |
| 140 | const char *function, char *file, unsigned int line); |
| 141 | |
| 142 | #define gfs2_io_error_bh(sdp, bh) \ |
| 143 | gfs2_io_error_bh_i((sdp), (bh), __func__, __FILE__, __LINE__); |
| 144 | |
| 145 | |
| 146 | extern struct kmem_cache *gfs2_glock_cachep; |
| 147 | extern struct kmem_cache *gfs2_glock_aspace_cachep; |
| 148 | extern struct kmem_cache *gfs2_inode_cachep; |
| 149 | extern struct kmem_cache *gfs2_bufdata_cachep; |
| 150 | extern struct kmem_cache *gfs2_rgrpd_cachep; |
| 151 | extern struct kmem_cache *gfs2_quotad_cachep; |
| 152 | extern struct kmem_cache *gfs2_rsrv_cachep; |
| 153 | extern mempool_t *gfs2_page_pool; |
| 154 | |
| 155 | static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt, |
| 156 | unsigned int *p) |
| 157 | { |
| 158 | unsigned int x; |
| 159 | spin_lock(>->gt_spin); |
| 160 | x = *p; |
| 161 | spin_unlock(>->gt_spin); |
| 162 | return x; |
| 163 | } |
| 164 | |
| 165 | #define gfs2_tune_get(sdp, field) \ |
| 166 | gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field) |
| 167 | |
| 168 | __printf(2, 3) |
| 169 | int gfs2_lm_withdraw(struct gfs2_sbd *sdp, const char *fmt, ...); |
| 170 | |
| 171 | #endif /* __UTIL_DOT_H__ */ |