linux/fs/hfsplus/inode.c
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   1/*
   2 *  linux/fs/hfsplus/inode.c
   3 *
   4 * Copyright (C) 2001
   5 * Brad Boyer (flar@allandria.com)
   6 * (C) 2003 Ardis Technologies <roman@ardistech.com>
   7 *
   8 * Inode handling routines
   9 */
  10
  11#include <linux/blkdev.h>
  12#include <linux/mm.h>
  13#include <linux/fs.h>
  14#include <linux/pagemap.h>
  15#include <linux/mpage.h>
  16#include <linux/sched.h>
  17
  18#include "hfsplus_fs.h"
  19#include "hfsplus_raw.h"
  20
  21static int hfsplus_readpage(struct file *file, struct page *page)
  22{
  23        return block_read_full_page(page, hfsplus_get_block);
  24}
  25
  26static int hfsplus_writepage(struct page *page, struct writeback_control *wbc)
  27{
  28        return block_write_full_page(page, hfsplus_get_block, wbc);
  29}
  30
  31static int hfsplus_write_begin(struct file *file, struct address_space *mapping,
  32                        loff_t pos, unsigned len, unsigned flags,
  33                        struct page **pagep, void **fsdata)
  34{
  35        int ret;
  36
  37        *pagep = NULL;
  38        ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
  39                                hfsplus_get_block,
  40                                &HFSPLUS_I(mapping->host)->phys_size);
  41        if (unlikely(ret)) {
  42                loff_t isize = mapping->host->i_size;
  43                if (pos + len > isize)
  44                        vmtruncate(mapping->host, isize);
  45        }
  46
  47        return ret;
  48}
  49
  50static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block)
  51{
  52        return generic_block_bmap(mapping, block, hfsplus_get_block);
  53}
  54
  55static int hfsplus_releasepage(struct page *page, gfp_t mask)
  56{
  57        struct inode *inode = page->mapping->host;
  58        struct super_block *sb = inode->i_sb;
  59        struct hfs_btree *tree;
  60        struct hfs_bnode *node;
  61        u32 nidx;
  62        int i, res = 1;
  63
  64        switch (inode->i_ino) {
  65        case HFSPLUS_EXT_CNID:
  66                tree = HFSPLUS_SB(sb)->ext_tree;
  67                break;
  68        case HFSPLUS_CAT_CNID:
  69                tree = HFSPLUS_SB(sb)->cat_tree;
  70                break;
  71        case HFSPLUS_ATTR_CNID:
  72                tree = HFSPLUS_SB(sb)->attr_tree;
  73                break;
  74        default:
  75                BUG();
  76                return 0;
  77        }
  78        if (!tree)
  79                return 0;
  80        if (tree->node_size >= PAGE_CACHE_SIZE) {
  81                nidx = page->index >>
  82                        (tree->node_size_shift - PAGE_CACHE_SHIFT);
  83                spin_lock(&tree->hash_lock);
  84                node = hfs_bnode_findhash(tree, nidx);
  85                if (!node)
  86                        ;
  87                else if (atomic_read(&node->refcnt))
  88                        res = 0;
  89                if (res && node) {
  90                        hfs_bnode_unhash(node);
  91                        hfs_bnode_free(node);
  92                }
  93                spin_unlock(&tree->hash_lock);
  94        } else {
  95                nidx = page->index <<
  96                        (PAGE_CACHE_SHIFT - tree->node_size_shift);
  97                i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
  98                spin_lock(&tree->hash_lock);
  99                do {
 100                        node = hfs_bnode_findhash(tree, nidx++);
 101                        if (!node)
 102                                continue;
 103                        if (atomic_read(&node->refcnt)) {
 104                                res = 0;
 105                                break;
 106                        }
 107                        hfs_bnode_unhash(node);
 108                        hfs_bnode_free(node);
 109                } while (--i && nidx < tree->node_count);
 110                spin_unlock(&tree->hash_lock);
 111        }
 112        return res ? try_to_free_buffers(page) : 0;
 113}
 114
 115static ssize_t hfsplus_direct_IO(int rw, struct kiocb *iocb,
 116                const struct iovec *iov, loff_t offset, unsigned long nr_segs)
 117{
 118        struct file *file = iocb->ki_filp;
 119        struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host;
 120        ssize_t ret;
 121
 122        ret = blockdev_direct_IO(rw, iocb, inode, iov, offset, nr_segs,
 123                                 hfsplus_get_block);
 124
 125        /*
 126         * In case of error extending write may have instantiated a few
 127         * blocks outside i_size. Trim these off again.
 128         */
 129        if (unlikely((rw & WRITE) && ret < 0)) {
 130                loff_t isize = i_size_read(inode);
 131                loff_t end = offset + iov_length(iov, nr_segs);
 132
 133                if (end > isize)
 134                        vmtruncate(inode, isize);
 135        }
 136
 137        return ret;
 138}
 139
 140static int hfsplus_writepages(struct address_space *mapping,
 141                              struct writeback_control *wbc)
 142{
 143        return mpage_writepages(mapping, wbc, hfsplus_get_block);
 144}
 145
 146const struct address_space_operations hfsplus_btree_aops = {
 147        .readpage       = hfsplus_readpage,
 148        .writepage      = hfsplus_writepage,
 149        .write_begin    = hfsplus_write_begin,
 150        .write_end      = generic_write_end,
 151        .bmap           = hfsplus_bmap,
 152        .releasepage    = hfsplus_releasepage,
 153};
 154
 155const struct address_space_operations hfsplus_aops = {
 156        .readpage       = hfsplus_readpage,
 157        .writepage      = hfsplus_writepage,
 158        .write_begin    = hfsplus_write_begin,
 159        .write_end      = generic_write_end,
 160        .bmap           = hfsplus_bmap,
 161        .direct_IO      = hfsplus_direct_IO,
 162        .writepages     = hfsplus_writepages,
 163};
 164
 165const struct dentry_operations hfsplus_dentry_operations = {
 166        .d_hash       = hfsplus_hash_dentry,
 167        .d_compare    = hfsplus_compare_dentry,
 168};
 169
 170static struct dentry *hfsplus_file_lookup(struct inode *dir,
 171                struct dentry *dentry, unsigned int flags)
 172{
 173        struct hfs_find_data fd;
 174        struct super_block *sb = dir->i_sb;
 175        struct inode *inode = NULL;
 176        struct hfsplus_inode_info *hip;
 177        int err;
 178
 179        if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
 180                goto out;
 181
 182        inode = HFSPLUS_I(dir)->rsrc_inode;
 183        if (inode)
 184                goto out;
 185
 186        inode = new_inode(sb);
 187        if (!inode)
 188                return ERR_PTR(-ENOMEM);
 189
 190        hip = HFSPLUS_I(inode);
 191        inode->i_ino = dir->i_ino;
 192        INIT_LIST_HEAD(&hip->open_dir_list);
 193        mutex_init(&hip->extents_lock);
 194        hip->extent_state = 0;
 195        hip->flags = 0;
 196        hip->userflags = 0;
 197        set_bit(HFSPLUS_I_RSRC, &hip->flags);
 198
 199        err = hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
 200        if (!err) {
 201                err = hfsplus_find_cat(sb, dir->i_ino, &fd);
 202                if (!err)
 203                        err = hfsplus_cat_read_inode(inode, &fd);
 204                hfs_find_exit(&fd);
 205        }
 206        if (err) {
 207                iput(inode);
 208                return ERR_PTR(err);
 209        }
 210        hip->rsrc_inode = dir;
 211        HFSPLUS_I(dir)->rsrc_inode = inode;
 212        igrab(dir);
 213
 214        /*
 215         * __mark_inode_dirty expects inodes to be hashed.  Since we don't
 216         * want resource fork inodes in the regular inode space, we make them
 217         * appear hashed, but do not put on any lists.  hlist_del()
 218         * will work fine and require no locking.
 219         */
 220        hlist_add_fake(&inode->i_hash);
 221
 222        mark_inode_dirty(inode);
 223out:
 224        d_add(dentry, inode);
 225        return NULL;
 226}
 227
 228static void hfsplus_get_perms(struct inode *inode,
 229                struct hfsplus_perm *perms, int dir)
 230{
 231        struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb);
 232        u16 mode;
 233
 234        mode = be16_to_cpu(perms->mode);
 235
 236        i_uid_write(inode, be32_to_cpu(perms->owner));
 237        if (!i_uid_read(inode) && !mode)
 238                inode->i_uid = sbi->uid;
 239
 240        i_gid_write(inode, be32_to_cpu(perms->group));
 241        if (!i_gid_read(inode) && !mode)
 242                inode->i_gid = sbi->gid;
 243
 244        if (dir) {
 245                mode = mode ? (mode & S_IALLUGO) : (S_IRWXUGO & ~(sbi->umask));
 246                mode |= S_IFDIR;
 247        } else if (!mode)
 248                mode = S_IFREG | ((S_IRUGO|S_IWUGO) & ~(sbi->umask));
 249        inode->i_mode = mode;
 250
 251        HFSPLUS_I(inode)->userflags = perms->userflags;
 252        if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE)
 253                inode->i_flags |= S_IMMUTABLE;
 254        else
 255                inode->i_flags &= ~S_IMMUTABLE;
 256        if (perms->rootflags & HFSPLUS_FLG_APPEND)
 257                inode->i_flags |= S_APPEND;
 258        else
 259                inode->i_flags &= ~S_APPEND;
 260}
 261
 262static int hfsplus_file_open(struct inode *inode, struct file *file)
 263{
 264        if (HFSPLUS_IS_RSRC(inode))
 265                inode = HFSPLUS_I(inode)->rsrc_inode;
 266        if (!(file->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS)
 267                return -EOVERFLOW;
 268        atomic_inc(&HFSPLUS_I(inode)->opencnt);
 269        return 0;
 270}
 271
 272static int hfsplus_file_release(struct inode *inode, struct file *file)
 273{
 274        struct super_block *sb = inode->i_sb;
 275
 276        if (HFSPLUS_IS_RSRC(inode))
 277                inode = HFSPLUS_I(inode)->rsrc_inode;
 278        if (atomic_dec_and_test(&HFSPLUS_I(inode)->opencnt)) {
 279                mutex_lock(&inode->i_mutex);
 280                hfsplus_file_truncate(inode);
 281                if (inode->i_flags & S_DEAD) {
 282                        hfsplus_delete_cat(inode->i_ino,
 283                                           HFSPLUS_SB(sb)->hidden_dir, NULL);
 284                        hfsplus_delete_inode(inode);
 285                }
 286                mutex_unlock(&inode->i_mutex);
 287        }
 288        return 0;
 289}
 290
 291static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr)
 292{
 293        struct inode *inode = dentry->d_inode;
 294        int error;
 295
 296        error = inode_change_ok(inode, attr);
 297        if (error)
 298                return error;
 299
 300        if ((attr->ia_valid & ATTR_SIZE) &&
 301            attr->ia_size != i_size_read(inode)) {
 302                inode_dio_wait(inode);
 303
 304                error = vmtruncate(inode, attr->ia_size);
 305                if (error)
 306                        return error;
 307        }
 308
 309        setattr_copy(inode, attr);
 310        mark_inode_dirty(inode);
 311        return 0;
 312}
 313
 314int hfsplus_file_fsync(struct file *file, loff_t start, loff_t end,
 315                       int datasync)
 316{
 317        struct inode *inode = file->f_mapping->host;
 318        struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
 319        struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb);
 320        int error = 0, error2;
 321
 322        error = filemap_write_and_wait_range(inode->i_mapping, start, end);
 323        if (error)
 324                return error;
 325        mutex_lock(&inode->i_mutex);
 326
 327        /*
 328         * Sync inode metadata into the catalog and extent trees.
 329         */
 330        sync_inode_metadata(inode, 1);
 331
 332        /*
 333         * And explicitly write out the btrees.
 334         */
 335        if (test_and_clear_bit(HFSPLUS_I_CAT_DIRTY, &hip->flags))
 336                error = filemap_write_and_wait(sbi->cat_tree->inode->i_mapping);
 337
 338        if (test_and_clear_bit(HFSPLUS_I_EXT_DIRTY, &hip->flags)) {
 339                error2 =
 340                        filemap_write_and_wait(sbi->ext_tree->inode->i_mapping);
 341                if (!error)
 342                        error = error2;
 343        }
 344
 345        if (test_and_clear_bit(HFSPLUS_I_ALLOC_DIRTY, &hip->flags)) {
 346                error2 = filemap_write_and_wait(sbi->alloc_file->i_mapping);
 347                if (!error)
 348                        error = error2;
 349        }
 350
 351        if (!test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags))
 352                blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
 353
 354        mutex_unlock(&inode->i_mutex);
 355
 356        return error;
 357}
 358
 359static const struct inode_operations hfsplus_file_inode_operations = {
 360        .lookup         = hfsplus_file_lookup,
 361        .truncate       = hfsplus_file_truncate,
 362        .setattr        = hfsplus_setattr,
 363        .setxattr       = hfsplus_setxattr,
 364        .getxattr       = hfsplus_getxattr,
 365        .listxattr      = hfsplus_listxattr,
 366};
 367
 368static const struct file_operations hfsplus_file_operations = {
 369        .llseek         = generic_file_llseek,
 370        .read           = do_sync_read,
 371        .aio_read       = generic_file_aio_read,
 372        .write          = do_sync_write,
 373        .aio_write      = generic_file_aio_write,
 374        .mmap           = generic_file_mmap,
 375        .splice_read    = generic_file_splice_read,
 376        .fsync          = hfsplus_file_fsync,
 377        .open           = hfsplus_file_open,
 378        .release        = hfsplus_file_release,
 379        .unlocked_ioctl = hfsplus_ioctl,
 380};
 381
 382struct inode *hfsplus_new_inode(struct super_block *sb, umode_t mode)
 383{
 384        struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
 385        struct inode *inode = new_inode(sb);
 386        struct hfsplus_inode_info *hip;
 387
 388        if (!inode)
 389                return NULL;
 390
 391        inode->i_ino = sbi->next_cnid++;
 392        inode->i_mode = mode;
 393        inode->i_uid = current_fsuid();
 394        inode->i_gid = current_fsgid();
 395        set_nlink(inode, 1);
 396        inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
 397
 398        hip = HFSPLUS_I(inode);
 399        INIT_LIST_HEAD(&hip->open_dir_list);
 400        mutex_init(&hip->extents_lock);
 401        atomic_set(&hip->opencnt, 0);
 402        hip->extent_state = 0;
 403        hip->flags = 0;
 404        hip->userflags = 0;
 405        memset(hip->first_extents, 0, sizeof(hfsplus_extent_rec));
 406        memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec));
 407        hip->alloc_blocks = 0;
 408        hip->first_blocks = 0;
 409        hip->cached_start = 0;
 410        hip->cached_blocks = 0;
 411        hip->phys_size = 0;
 412        hip->fs_blocks = 0;
 413        hip->rsrc_inode = NULL;
 414        if (S_ISDIR(inode->i_mode)) {
 415                inode->i_size = 2;
 416                sbi->folder_count++;
 417                inode->i_op = &hfsplus_dir_inode_operations;
 418                inode->i_fop = &hfsplus_dir_operations;
 419        } else if (S_ISREG(inode->i_mode)) {
 420                sbi->file_count++;
 421                inode->i_op = &hfsplus_file_inode_operations;
 422                inode->i_fop = &hfsplus_file_operations;
 423                inode->i_mapping->a_ops = &hfsplus_aops;
 424                hip->clump_blocks = sbi->data_clump_blocks;
 425        } else if (S_ISLNK(inode->i_mode)) {
 426                sbi->file_count++;
 427                inode->i_op = &page_symlink_inode_operations;
 428                inode->i_mapping->a_ops = &hfsplus_aops;
 429                hip->clump_blocks = 1;
 430        } else
 431                sbi->file_count++;
 432        insert_inode_hash(inode);
 433        mark_inode_dirty(inode);
 434        hfsplus_mark_mdb_dirty(sb);
 435
 436        return inode;
 437}
 438
 439void hfsplus_delete_inode(struct inode *inode)
 440{
 441        struct super_block *sb = inode->i_sb;
 442
 443        if (S_ISDIR(inode->i_mode)) {
 444                HFSPLUS_SB(sb)->folder_count--;
 445                hfsplus_mark_mdb_dirty(sb);
 446                return;
 447        }
 448        HFSPLUS_SB(sb)->file_count--;
 449        if (S_ISREG(inode->i_mode)) {
 450                if (!inode->i_nlink) {
 451                        inode->i_size = 0;
 452                        hfsplus_file_truncate(inode);
 453                }
 454        } else if (S_ISLNK(inode->i_mode)) {
 455                inode->i_size = 0;
 456                hfsplus_file_truncate(inode);
 457        }
 458        hfsplus_mark_mdb_dirty(sb);
 459}
 460
 461void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork)
 462{
 463        struct super_block *sb = inode->i_sb;
 464        struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
 465        struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
 466        u32 count;
 467        int i;
 468
 469        memcpy(&hip->first_extents, &fork->extents, sizeof(hfsplus_extent_rec));
 470        for (count = 0, i = 0; i < 8; i++)
 471                count += be32_to_cpu(fork->extents[i].block_count);
 472        hip->first_blocks = count;
 473        memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec));
 474        hip->cached_start = 0;
 475        hip->cached_blocks = 0;
 476
 477        hip->alloc_blocks = be32_to_cpu(fork->total_blocks);
 478        hip->phys_size = inode->i_size = be64_to_cpu(fork->total_size);
 479        hip->fs_blocks =
 480                (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
 481        inode_set_bytes(inode, hip->fs_blocks << sb->s_blocksize_bits);
 482        hip->clump_blocks =
 483                be32_to_cpu(fork->clump_size) >> sbi->alloc_blksz_shift;
 484        if (!hip->clump_blocks) {
 485                hip->clump_blocks = HFSPLUS_IS_RSRC(inode) ?
 486                        sbi->rsrc_clump_blocks :
 487                        sbi->data_clump_blocks;
 488        }
 489}
 490
 491void hfsplus_inode_write_fork(struct inode *inode,
 492                struct hfsplus_fork_raw *fork)
 493{
 494        memcpy(&fork->extents, &HFSPLUS_I(inode)->first_extents,
 495               sizeof(hfsplus_extent_rec));
 496        fork->total_size = cpu_to_be64(inode->i_size);
 497        fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode)->alloc_blocks);
 498}
 499
 500int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
 501{
 502        hfsplus_cat_entry entry;
 503        int res = 0;
 504        u16 type;
 505
 506        type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset);
 507
 508        HFSPLUS_I(inode)->linkid = 0;
 509        if (type == HFSPLUS_FOLDER) {
 510                struct hfsplus_cat_folder *folder = &entry.folder;
 511
 512                if (fd->entrylength < sizeof(struct hfsplus_cat_folder))
 513                        /* panic? */;
 514                hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 515                                        sizeof(struct hfsplus_cat_folder));
 516                hfsplus_get_perms(inode, &folder->permissions, 1);
 517                set_nlink(inode, 1);
 518                inode->i_size = 2 + be32_to_cpu(folder->valence);
 519                inode->i_atime = hfsp_mt2ut(folder->access_date);
 520                inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
 521                inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date);
 522                HFSPLUS_I(inode)->create_date = folder->create_date;
 523                HFSPLUS_I(inode)->fs_blocks = 0;
 524                inode->i_op = &hfsplus_dir_inode_operations;
 525                inode->i_fop = &hfsplus_dir_operations;
 526        } else if (type == HFSPLUS_FILE) {
 527                struct hfsplus_cat_file *file = &entry.file;
 528
 529                if (fd->entrylength < sizeof(struct hfsplus_cat_file))
 530                        /* panic? */;
 531                hfs_bnode_read(fd->bnode, &entry, fd->entryoffset,
 532                                        sizeof(struct hfsplus_cat_file));
 533
 534                hfsplus_inode_read_fork(inode, HFSPLUS_IS_RSRC(inode) ?
 535                                        &file->rsrc_fork : &file->data_fork);
 536                hfsplus_get_perms(inode, &file->permissions, 0);
 537                set_nlink(inode, 1);
 538                if (S_ISREG(inode->i_mode)) {
 539                        if (file->permissions.dev)
 540                                set_nlink(inode,
 541                                          be32_to_cpu(file->permissions.dev));
 542                        inode->i_op = &hfsplus_file_inode_operations;
 543                        inode->i_fop = &hfsplus_file_operations;
 544                        inode->i_mapping->a_ops = &hfsplus_aops;
 545                } else if (S_ISLNK(inode->i_mode)) {
 546                        inode->i_op = &page_symlink_inode_operations;
 547                        inode->i_mapping->a_ops = &hfsplus_aops;
 548                } else {
 549                        init_special_inode(inode, inode->i_mode,
 550                                           be32_to_cpu(file->permissions.dev));
 551                }
 552                inode->i_atime = hfsp_mt2ut(file->access_date);
 553                inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
 554                inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date);
 555                HFSPLUS_I(inode)->create_date = file->create_date;
 556        } else {
 557                printk(KERN_ERR "hfs: bad catalog entry used to create inode\n");
 558                res = -EIO;
 559        }
 560        return res;
 561}
 562
 563int hfsplus_cat_write_inode(struct inode *inode)
 564{
 565        struct inode *main_inode = inode;
 566        struct hfs_find_data fd;
 567        hfsplus_cat_entry entry;
 568
 569        if (HFSPLUS_IS_RSRC(inode))
 570                main_inode = HFSPLUS_I(inode)->rsrc_inode;
 571
 572        if (!main_inode->i_nlink)
 573                return 0;
 574
 575        if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb)->cat_tree, &fd))
 576                /* panic? */
 577                return -EIO;
 578
 579        if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd))
 580                /* panic? */
 581                goto out;
 582
 583        if (S_ISDIR(main_inode->i_mode)) {
 584                struct hfsplus_cat_folder *folder = &entry.folder;
 585
 586                if (fd.entrylength < sizeof(struct hfsplus_cat_folder))
 587                        /* panic? */;
 588                hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 589                                        sizeof(struct hfsplus_cat_folder));
 590                /* simple node checks? */
 591                hfsplus_cat_set_perms(inode, &folder->permissions);
 592                folder->access_date = hfsp_ut2mt(inode->i_atime);
 593                folder->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 594                folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 595                folder->valence = cpu_to_be32(inode->i_size - 2);
 596                hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 597                                         sizeof(struct hfsplus_cat_folder));
 598        } else if (HFSPLUS_IS_RSRC(inode)) {
 599                struct hfsplus_cat_file *file = &entry.file;
 600                hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 601                               sizeof(struct hfsplus_cat_file));
 602                hfsplus_inode_write_fork(inode, &file->rsrc_fork);
 603                hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 604                                sizeof(struct hfsplus_cat_file));
 605        } else {
 606                struct hfsplus_cat_file *file = &entry.file;
 607
 608                if (fd.entrylength < sizeof(struct hfsplus_cat_file))
 609                        /* panic? */;
 610                hfs_bnode_read(fd.bnode, &entry, fd.entryoffset,
 611                                        sizeof(struct hfsplus_cat_file));
 612                hfsplus_inode_write_fork(inode, &file->data_fork);
 613                hfsplus_cat_set_perms(inode, &file->permissions);
 614                if (HFSPLUS_FLG_IMMUTABLE &
 615                                (file->permissions.rootflags |
 616                                        file->permissions.userflags))
 617                        file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
 618                else
 619                        file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED);
 620                file->access_date = hfsp_ut2mt(inode->i_atime);
 621                file->content_mod_date = hfsp_ut2mt(inode->i_mtime);
 622                file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime);
 623                hfs_bnode_write(fd.bnode, &entry, fd.entryoffset,
 624                                         sizeof(struct hfsplus_cat_file));
 625        }
 626
 627        set_bit(HFSPLUS_I_CAT_DIRTY, &HFSPLUS_I(inode)->flags);
 628out:
 629        hfs_find_exit(&fd);
 630        return 0;
 631}
 632
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