fs/gfs2/ondisk.c

   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 #include <linux/sched.h>
  11 #include <linux/slab.h>
  12 #include <linux/spinlock.h>
  13 #include <linux/completion.h>
  14 #include <linux/buffer_head.h>
  15
  16 #include "gfs2.h"
  17 #include <linux/gfs2_ondisk.h>
  18
  19 #define pv(struct, member, fmt) printk(KERN_INFO "  "#member" = "fmt"\n", \
  20                                        struct->member);
  21
  22 /*
  23  * gfs2_xxx_in - read in an xxx struct
  24  * first arg: the cpu-order structure
  25  * buf: the disk-order buffer
  26  *
  27  * gfs2_xxx_out - write out an xxx struct
  28  * first arg: the cpu-order structure
  29  * buf: the disk-order buffer
  30  *
  31  * gfs2_xxx_print - print out an xxx struct
  32  * first arg: the cpu-order structure
  33  */
  34
  35 void gfs2_inum_in(struct gfs2_inum *no, const void *buf)
  36 {
  37         const struct gfs2_inum *str = buf;
  38
  39         no->no_formal_ino = be64_to_cpu(str->no_formal_ino);
  40         no->no_addr = be64_to_cpu(str->no_addr);
  41 }
  42
  43 void gfs2_inum_out(const struct gfs2_inum *no, void *buf)
  44 {
  45         struct gfs2_inum *str = buf;
  46
  47         str->no_formal_ino = cpu_to_be64(no->no_formal_ino);
  48         str->no_addr = cpu_to_be64(no->no_addr);
  49 }
  50
  51 static void gfs2_inum_print(const struct gfs2_inum *no)
  52 {
  53         printk(KERN_INFO "  no_formal_ino = %llu\n", (unsigned long long)no->no_formal_ino);
  54         printk(KERN_INFO "  no_addr = %llu\n", (unsigned long long)no->no_addr);
  55 }
  56
  57 static void gfs2_meta_header_in(struct gfs2_meta_header *mh, const void *buf)
  58 {
  59         const struct gfs2_meta_header *str = buf;
  60
  61         mh->mh_magic = be32_to_cpu(str->mh_magic);
  62         mh->mh_type = be32_to_cpu(str->mh_type);
  63         mh->mh_format = be32_to_cpu(str->mh_format);
  64 }
  65
  66 static void gfs2_meta_header_out(const struct gfs2_meta_header *mh, void *buf)
  67 {
  68         struct gfs2_meta_header *str = buf;
  69
  70         str->mh_magic = cpu_to_be32(mh->mh_magic);
  71         str->mh_type = cpu_to_be32(mh->mh_type);
  72         str->mh_format = cpu_to_be32(mh->mh_format);
  73 }
  74
  75 static void gfs2_meta_header_print(const struct gfs2_meta_header *mh)
  76 {
  77         pv(mh, mh_magic, "0x%.8X");
  78         pv(mh, mh_type, "%u");
  79         pv(mh, mh_format, "%u");
  80 }
  81
  82 void gfs2_sb_in(struct gfs2_sb *sb, const void *buf)
  83 {
  84         const struct gfs2_sb *str = buf;
  85
  86         gfs2_meta_header_in(&sb->sb_header, buf);
  87
  88         sb->sb_fs_format = be32_to_cpu(str->sb_fs_format);
  89         sb->sb_multihost_format = be32_to_cpu(str->sb_multihost_format);
  90         sb->sb_bsize = be32_to_cpu(str->sb_bsize);
  91         sb->sb_bsize_shift = be32_to_cpu(str->sb_bsize_shift);
  92
  93         gfs2_inum_in(&sb->sb_master_dir, (char *)&str->sb_master_dir);
  94         gfs2_inum_in(&sb->sb_root_dir, (char *)&str->sb_root_dir);
  95
  96         memcpy(sb->sb_lockproto, str->sb_lockproto, GFS2_LOCKNAME_LEN);
  97         memcpy(sb->sb_locktable, str->sb_locktable, GFS2_LOCKNAME_LEN);
  98 }
  99
 100 void gfs2_rindex_in(struct gfs2_rindex *ri, const void *buf)
 101 {
 102         const struct gfs2_rindex *str = buf;
 103
 104         ri->ri_addr = be64_to_cpu(str->ri_addr);
 105         ri->ri_length = be32_to_cpu(str->ri_length);
 106         ri->ri_data0 = be64_to_cpu(str->ri_data0);
 107         ri->ri_data = be32_to_cpu(str->ri_data);
 108         ri->ri_bitbytes = be32_to_cpu(str->ri_bitbytes);
 109
 110 }
 111
 112 void gfs2_rindex_print(const struct gfs2_rindex *ri)
 113 {
 114         printk(KERN_INFO "  ri_addr = %llu\n", (unsigned long long)ri->ri_addr);
 115         pv(ri, ri_length, "%u");
 116
 117         printk(KERN_INFO "  ri_data0 = %llu\n", (unsigned long long)ri->ri_data0);
 118         pv(ri, ri_data, "%u");
 119
 120         pv(ri, ri_bitbytes, "%u");
 121 }
 122
 123 void gfs2_rgrp_in(struct gfs2_rgrp *rg, const void *buf)
 124 {
 125         const struct gfs2_rgrp *str = buf;
 126
 127         gfs2_meta_header_in(&rg->rg_header, buf);
 128         rg->rg_flags = be32_to_cpu(str->rg_flags);
 129         rg->rg_free = be32_to_cpu(str->rg_free);
 130         rg->rg_dinodes = be32_to_cpu(str->rg_dinodes);
 131         rg->rg_igeneration = be64_to_cpu(str->rg_igeneration);
 132 }
 133
 134 void gfs2_rgrp_out(const struct gfs2_rgrp *rg, void *buf)
 135 {
 136         struct gfs2_rgrp *str = buf;
 137
 138         gfs2_meta_header_out(&rg->rg_header, buf);
 139         str->rg_flags = cpu_to_be32(rg->rg_flags);
 140         str->rg_free = cpu_to_be32(rg->rg_free);
 141         str->rg_dinodes = cpu_to_be32(rg->rg_dinodes);
 142         str->__pad = cpu_to_be32(0);
 143         str->rg_igeneration = cpu_to_be64(rg->rg_igeneration);
 144         memset(&str->rg_reserved, 0, sizeof(str->rg_reserved));
 145 }
 146
 147 void gfs2_quota_in(struct gfs2_quota *qu, const void *buf)
 148 {
 149         const struct gfs2_quota *str = buf;
 150
 151         qu->qu_limit = be64_to_cpu(str->qu_limit);
 152         qu->qu_warn = be64_to_cpu(str->qu_warn);
 153         qu->qu_value = be64_to_cpu(str->qu_value);
 154 }
 155
 156 void gfs2_dinode_in(struct gfs2_dinode *di, const void *buf)
 157 {
 158         const struct gfs2_dinode *str = buf;
 159
 160         gfs2_meta_header_in(&di->di_header, buf);
 161         gfs2_inum_in(&di->di_num, &str->di_num);
 162
 163         di->di_mode = be32_to_cpu(str->di_mode);
 164         di->di_uid = be32_to_cpu(str->di_uid);
 165         di->di_gid = be32_to_cpu(str->di_gid);
 166         di->di_nlink = be32_to_cpu(str->di_nlink);
 167         di->di_size = be64_to_cpu(str->di_size);
 168         di->di_blocks = be64_to_cpu(str->di_blocks);
 169         di->di_atime = be64_to_cpu(str->di_atime);
 170         di->di_mtime = be64_to_cpu(str->di_mtime);
 171         di->di_ctime = be64_to_cpu(str->di_ctime);
 172         di->di_major = be32_to_cpu(str->di_major);
 173         di->di_minor = be32_to_cpu(str->di_minor);
 174
 175         di->di_goal_meta = be64_to_cpu(str->di_goal_meta);
 176         di->di_goal_data = be64_to_cpu(str->di_goal_data);
 177         di->di_generation = be64_to_cpu(str->di_generation);
 178
 179         di->di_flags = be32_to_cpu(str->di_flags);
 180         di->di_payload_format = be32_to_cpu(str->di_payload_format);
 181         di->di_height = be16_to_cpu(str->di_height);
 182
 183         di->di_depth = be16_to_cpu(str->di_depth);
 184         di->di_entries = be32_to_cpu(str->di_entries);
 185
 186         di->di_eattr = be64_to_cpu(str->di_eattr);
 187
 188 }
 189
 190 void gfs2_dinode_out(const struct gfs2_dinode *di, void *buf)
 191 {
 192         struct gfs2_dinode *str = buf;
 193
 194         gfs2_meta_header_out(&di->di_header, buf);
 195         gfs2_inum_out(&di->di_num, (char *)&str->di_num);
 196
 197         str->di_mode = cpu_to_be32(di->di_mode);
 198         str->di_uid = cpu_to_be32(di->di_uid);
 199         str->di_gid = cpu_to_be32(di->di_gid);
 200         str->di_nlink = cpu_to_be32(di->di_nlink);
 201         str->di_size = cpu_to_be64(di->di_size);
 202         str->di_blocks = cpu_to_be64(di->di_blocks);
 203         str->di_atime = cpu_to_be64(di->di_atime);
 204         str->di_mtime = cpu_to_be64(di->di_mtime);
 205         str->di_ctime = cpu_to_be64(di->di_ctime);
 206         str->di_major = cpu_to_be32(di->di_major);
 207         str->di_minor = cpu_to_be32(di->di_minor);
 208
 209         str->di_goal_meta = cpu_to_be64(di->di_goal_meta);
 210         str->di_goal_data = cpu_to_be64(di->di_goal_data);
 211         str->di_generation = cpu_to_be64(di->di_generation);
 212
 213         str->di_flags = cpu_to_be32(di->di_flags);
 214         str->di_payload_format = cpu_to_be32(di->di_payload_format);
 215         str->di_height = cpu_to_be16(di->di_height);
 216
 217         str->di_depth = cpu_to_be16(di->di_depth);
 218         str->di_entries = cpu_to_be32(di->di_entries);
 219
 220         str->di_eattr = cpu_to_be64(di->di_eattr);
 221
 222 }
 223
 224 void gfs2_dinode_print(const struct gfs2_dinode *di)
 225 {
 226         gfs2_meta_header_print(&di->di_header);
 227         gfs2_inum_print(&di->di_num);
 228
 229         pv(di, di_mode, "0%o");
 230         pv(di, di_uid, "%u");
 231         pv(di, di_gid, "%u");
 232         pv(di, di_nlink, "%u");
 233         printk(KERN_INFO "  di_size = %llu\n", (unsigned long long)di->di_size);
 234         printk(KERN_INFO "  di_blocks = %llu\n", (unsigned long long)di->di_blocks);
 235         printk(KERN_INFO "  di_atime = %lld\n", (long long)di->di_atime);
 236         printk(KERN_INFO "  di_mtime = %lld\n", (long long)di->di_mtime);
 237         printk(KERN_INFO "  di_ctime = %lld\n", (long long)di->di_ctime);
 238         pv(di, di_major, "%u");
 239         pv(di, di_minor, "%u");
 240
 241         printk(KERN_INFO "  di_goal_meta = %llu\n", (unsigned long long)di->di_goal_meta);
 242         printk(KERN_INFO "  di_goal_data = %llu\n", (unsigned long long)di->di_goal_data);
 243
 244         pv(di, di_flags, "0x%.8X");
 245         pv(di, di_payload_format, "%u");
 246         pv(di, di_height, "%u");
 247
 248         pv(di, di_depth, "%u");
 249         pv(di, di_entries, "%u");
 250
 251         printk(KERN_INFO "  di_eattr = %llu\n", (unsigned long long)di->di_eattr);
 252 }
 253
 254 void gfs2_log_header_in(struct gfs2_log_header *lh, const void *buf)
 255 {
 256         const struct gfs2_log_header *str = buf;
 257
 258         gfs2_meta_header_in(&lh->lh_header, buf);
 259         lh->lh_sequence = be64_to_cpu(str->lh_sequence);
 260         lh->lh_flags = be32_to_cpu(str->lh_flags);
 261         lh->lh_tail = be32_to_cpu(str->lh_tail);
 262         lh->lh_blkno = be32_to_cpu(str->lh_blkno);
 263         lh->lh_hash = be32_to_cpu(str->lh_hash);
 264 }
 265
 266 void gfs2_inum_range_in(struct gfs2_inum_range *ir, const void *buf)
 267 {
 268         const struct gfs2_inum_range *str = buf;
 269
 270         ir->ir_start = be64_to_cpu(str->ir_start);
 271         ir->ir_length = be64_to_cpu(str->ir_length);
 272 }
 273
 274 void gfs2_inum_range_out(const struct gfs2_inum_range *ir, void *buf)
 275 {
 276         struct gfs2_inum_range *str = buf;
 277
 278         str->ir_start = cpu_to_be64(ir->ir_start);
 279         str->ir_length = cpu_to_be64(ir->ir_length);
 280 }
 281
 282 void gfs2_statfs_change_in(struct gfs2_statfs_change *sc, const void *buf)
 283 {
 284         const struct gfs2_statfs_change *str = buf;
 285
 286         sc->sc_total = be64_to_cpu(str->sc_total);
 287         sc->sc_free = be64_to_cpu(str->sc_free);
 288         sc->sc_dinodes = be64_to_cpu(str->sc_dinodes);
 289 }
 290
 291 void gfs2_statfs_change_out(const struct gfs2_statfs_change *sc, void *buf)
 292 {
 293         struct gfs2_statfs_change *str = buf;
 294
 295         str->sc_total = cpu_to_be64(sc->sc_total);
 296         str->sc_free = cpu_to_be64(sc->sc_free);
 297         str->sc_dinodes = cpu_to_be64(sc->sc_dinodes);
 298 }
 299
 300 void gfs2_quota_change_in(struct gfs2_quota_change *qc, const void *buf)
 301 {
 302         const struct gfs2_quota_change *str = buf;
 303
 304         qc->qc_change = be64_to_cpu(str->qc_change);
 305         qc->qc_flags = be32_to_cpu(str->qc_flags);
 306         qc->qc_id = be32_to_cpu(str->qc_id);
 307 }
 308