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 #include <linux/lm_interface.h>
  19 #include "incore.h"
  20
  21 #define pv(struct, member, fmt) printk(KERN_INFO "  "#member" = "fmt"\n", \
  22                                        struct->member);
  23
  24 /*
  25  * gfs2_xxx_in - read in an xxx struct
  26  * first arg: the cpu-order structure
  27  * buf: the disk-order buffer
  28  *
  29  * gfs2_xxx_out - write out an xxx struct
  30  * first arg: the cpu-order structure
  31  * buf: the disk-order buffer
  32  *
  33  * gfs2_xxx_print - print out an xxx struct
  34  * first arg: the cpu-order structure
  35  */
  36
  37 void gfs2_inum_in(struct gfs2_inum_host *no, const void *buf)
  38 {
  39         const struct gfs2_inum *str = buf;
  40
  41         no->no_formal_ino = be64_to_cpu(str->no_formal_ino);
  42         no->no_addr = be64_to_cpu(str->no_addr);
  43 }
  44
  45 void gfs2_inum_out(const struct gfs2_inum_host *no, void *buf)
  46 {
  47         struct gfs2_inum *str = buf;
  48
  49         str->no_formal_ino = cpu_to_be64(no->no_formal_ino);
  50         str->no_addr = cpu_to_be64(no->no_addr);
  51 }
  52
  53 static void gfs2_inum_print(const struct gfs2_inum_host *no)
  54 {
  55         printk(KERN_INFO "  no_formal_ino = %llu\n", (unsigned long long)no->no_formal_ino);
  56         printk(KERN_INFO "  no_addr = %llu\n", (unsigned long long)no->no_addr);
  57 }
  58
  59 void gfs2_meta_header_in(struct gfs2_meta_header_host *mh, const void *buf)
  60 {
  61         const struct gfs2_meta_header *str = buf;
  62
  63         mh->mh_magic = be32_to_cpu(str->mh_magic);
  64         mh->mh_type = be32_to_cpu(str->mh_type);
  65         mh->mh_format = be32_to_cpu(str->mh_format);
  66 }
  67
  68 static void gfs2_meta_header_out(const struct gfs2_meta_header_host *mh, void *buf)
  69 {
  70         struct gfs2_meta_header *str = buf;
  71
  72         str->mh_magic = cpu_to_be32(mh->mh_magic);
  73         str->mh_type = cpu_to_be32(mh->mh_type);
  74         str->mh_format = cpu_to_be32(mh->mh_format);
  75 }
  76
  77 static void gfs2_meta_header_print(const struct gfs2_meta_header_host *mh)
  78 {
  79         pv(mh, mh_magic, "0x%.8X");
  80         pv(mh, mh_type, "%u");
  81         pv(mh, mh_format, "%u");
  82 }
  83
  84 void gfs2_sb_in(struct gfs2_sb_host *sb, const void *buf)
  85 {
  86         const struct gfs2_sb *str = buf;
  87
  88         gfs2_meta_header_in(&sb->sb_header, buf);
  89
  90         sb->sb_fs_format = be32_to_cpu(str->sb_fs_format);
  91         sb->sb_multihost_format = be32_to_cpu(str->sb_multihost_format);
  92         sb->sb_bsize = be32_to_cpu(str->sb_bsize);
  93         sb->sb_bsize_shift = be32_to_cpu(str->sb_bsize_shift);
  94
  95         gfs2_inum_in(&sb->sb_master_dir, (char *)&str->sb_master_dir);
  96         gfs2_inum_in(&sb->sb_root_dir, (char *)&str->sb_root_dir);
  97
  98         memcpy(sb->sb_lockproto, str->sb_lockproto, GFS2_LOCKNAME_LEN);
  99         memcpy(sb->sb_locktable, str->sb_locktable, GFS2_LOCKNAME_LEN);
 100 }
 101
 102 void gfs2_rindex_in(struct gfs2_rindex_host *ri, const void *buf)
 103 {
 104         const struct gfs2_rindex *str = buf;
 105
 106         ri->ri_addr = be64_to_cpu(str->ri_addr);
 107         ri->ri_length = be32_to_cpu(str->ri_length);
 108         ri->ri_data0 = be64_to_cpu(str->ri_data0);
 109         ri->ri_data = be32_to_cpu(str->ri_data);
 110         ri->ri_bitbytes = be32_to_cpu(str->ri_bitbytes);
 111
 112 }
 113
 114 void gfs2_rindex_print(const struct gfs2_rindex_host *ri)
 115 {
 116         printk(KERN_INFO "  ri_addr = %llu\n", (unsigned long long)ri->ri_addr);
 117         pv(ri, ri_length, "%u");
 118
 119         printk(KERN_INFO "  ri_data0 = %llu\n", (unsigned long long)ri->ri_data0);
 120         pv(ri, ri_data, "%u");
 121
 122         pv(ri, ri_bitbytes, "%u");
 123 }
 124
 125 void gfs2_rgrp_in(struct gfs2_rgrp_host *rg, const void *buf)
 126 {
 127         const struct gfs2_rgrp *str = buf;
 128
 129         gfs2_meta_header_in(&rg->rg_header, buf);
 130         rg->rg_flags = be32_to_cpu(str->rg_flags);
 131         rg->rg_free = be32_to_cpu(str->rg_free);
 132         rg->rg_dinodes = be32_to_cpu(str->rg_dinodes);
 133         rg->rg_igeneration = be64_to_cpu(str->rg_igeneration);
 134 }
 135
 136 void gfs2_rgrp_out(const struct gfs2_rgrp_host *rg, void *buf)
 137 {
 138         struct gfs2_rgrp *str = buf;
 139
 140         gfs2_meta_header_out(&rg->rg_header, buf);
 141         str->rg_flags = cpu_to_be32(rg->rg_flags);
 142         str->rg_free = cpu_to_be32(rg->rg_free);
 143         str->rg_dinodes = cpu_to_be32(rg->rg_dinodes);
 144         str->__pad = cpu_to_be32(0);
 145         str->rg_igeneration = cpu_to_be64(rg->rg_igeneration);
 146         memset(&str->rg_reserved, 0, sizeof(str->rg_reserved));
 147 }
 148
 149 void gfs2_quota_in(struct gfs2_quota_host *qu, const void *buf)
 150 {
 151         const struct gfs2_quota *str = buf;
 152
 153         qu->qu_limit = be64_to_cpu(str->qu_limit);
 154         qu->qu_warn = be64_to_cpu(str->qu_warn);
 155         qu->qu_value = be64_to_cpu(str->qu_value);
 156 }
 157
 158 void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
 159 {
 160         const struct gfs2_dinode_host *di = &ip->i_di;
 161         struct gfs2_dinode *str = buf;
 162
 163         gfs2_meta_header_out(&di->di_header, buf);
 164         gfs2_inum_out(&di->di_num, (char *)&str->di_num);
 165
 166         str->di_mode = cpu_to_be32(di->di_mode);
 167         str->di_uid = cpu_to_be32(di->di_uid);
 168         str->di_gid = cpu_to_be32(di->di_gid);
 169         str->di_nlink = cpu_to_be32(di->di_nlink);
 170         str->di_size = cpu_to_be64(di->di_size);
 171         str->di_blocks = cpu_to_be64(di->di_blocks);
 172         str->di_atime = cpu_to_be64(di->di_atime);
 173         str->di_mtime = cpu_to_be64(di->di_mtime);
 174         str->di_ctime = cpu_to_be64(di->di_ctime);
 175         str->di_major = cpu_to_be32(di->di_major);
 176         str->di_minor = cpu_to_be32(di->di_minor);
 177
 178         str->di_goal_meta = cpu_to_be64(di->di_goal_meta);
 179         str->di_goal_data = cpu_to_be64(di->di_goal_data);
 180         str->di_generation = cpu_to_be64(di->di_generation);
 181
 182         str->di_flags = cpu_to_be32(di->di_flags);
 183         str->di_payload_format = cpu_to_be32(di->di_payload_format);
 184         str->di_height = cpu_to_be16(di->di_height);
 185
 186         str->di_depth = cpu_to_be16(di->di_depth);
 187         str->di_entries = cpu_to_be32(di->di_entries);
 188
 189         str->di_eattr = cpu_to_be64(di->di_eattr);
 190
 191 }
 192
 193 void gfs2_dinode_print(const struct gfs2_inode *ip)
 194 {
 195         const struct gfs2_dinode_host *di = &ip->i_di;
 196
 197         gfs2_meta_header_print(&di->di_header);
 198         gfs2_inum_print(&di->di_num);
 199
 200         pv(di, di_mode, "0%o");
 201         pv(di, di_uid, "%u");
 202         pv(di, di_gid, "%u");
 203         pv(di, di_nlink, "%u");
 204         printk(KERN_INFO "  di_size = %llu\n", (unsigned long long)di->di_size);
 205         printk(KERN_INFO "  di_blocks = %llu\n", (unsigned long long)di->di_blocks);
 206         printk(KERN_INFO "  di_atime = %lld\n", (long long)di->di_atime);
 207         printk(KERN_INFO "  di_mtime = %lld\n", (long long)di->di_mtime);
 208         printk(KERN_INFO "  di_ctime = %lld\n", (long long)di->di_ctime);
 209         pv(di, di_major, "%u");
 210         pv(di, di_minor, "%u");
 211
 212         printk(KERN_INFO "  di_goal_meta = %llu\n", (unsigned long long)di->di_goal_meta);
 213         printk(KERN_INFO "  di_goal_data = %llu\n", (unsigned long long)di->di_goal_data);
 214
 215         pv(di, di_flags, "0x%.8X");
 216         pv(di, di_payload_format, "%u");
 217         pv(di, di_height, "%u");
 218
 219         pv(di, di_depth, "%u");
 220         pv(di, di_entries, "%u");
 221
 222         printk(KERN_INFO "  di_eattr = %llu\n", (unsigned long long)di->di_eattr);
 223 }
 224
 225 void gfs2_log_header_in(struct gfs2_log_header_host *lh, const void *buf)
 226 {
 227         const struct gfs2_log_header *str = buf;
 228
 229         gfs2_meta_header_in(&lh->lh_header, buf);
 230         lh->lh_sequence = be64_to_cpu(str->lh_sequence);
 231         lh->lh_flags = be32_to_cpu(str->lh_flags);
 232         lh->lh_tail = be32_to_cpu(str->lh_tail);
 233         lh->lh_blkno = be32_to_cpu(str->lh_blkno);
 234         lh->lh_hash = be32_to_cpu(str->lh_hash);
 235 }
 236
 237 void gfs2_inum_range_in(struct gfs2_inum_range_host *ir, const void *buf)
 238 {
 239         const struct gfs2_inum_range *str = buf;
 240
 241         ir->ir_start = be64_to_cpu(str->ir_start);
 242         ir->ir_length = be64_to_cpu(str->ir_length);
 243 }
 244
 245 void gfs2_inum_range_out(const struct gfs2_inum_range_host *ir, void *buf)
 246 {
 247         struct gfs2_inum_range *str = buf;
 248
 249         str->ir_start = cpu_to_be64(ir->ir_start);
 250         str->ir_length = cpu_to_be64(ir->ir_length);
 251 }
 252
 253 void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc, const void *buf)
 254 {
 255         const struct gfs2_statfs_change *str = buf;
 256
 257         sc->sc_total = be64_to_cpu(str->sc_total);
 258         sc->sc_free = be64_to_cpu(str->sc_free);
 259         sc->sc_dinodes = be64_to_cpu(str->sc_dinodes);
 260 }
 261
 262 void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc, void *buf)
 263 {
 264         struct gfs2_statfs_change *str = buf;
 265
 266         str->sc_total = cpu_to_be64(sc->sc_total);
 267         str->sc_free = cpu_to_be64(sc->sc_free);
 268         str->sc_dinodes = cpu_to_be64(sc->sc_dinodes);
 269 }
 270
 271 void gfs2_quota_change_in(struct gfs2_quota_change_host *qc, const void *buf)
 272 {
 273         const struct gfs2_quota_change *str = buf;
 274
 275         qc->qc_change = be64_to_cpu(str->qc_change);
 276         qc->qc_flags = be32_to_cpu(str->qc_flags);
 277         qc->qc_id = be32_to_cpu(str->qc_id);
 278 }
 279