Root/fs/hfs/inode.c

1/*
2 * linux/fs/hfs/inode.c
3 *
4 * Copyright (C) 1995-1997 Paul H. Hargrove
5 * (C) 2003 Ardis Technologies <roman@ardistech.com>
6 * This file may be distributed under the terms of the GNU General Public License.
7 *
8 * This file contains inode-related functions which do not depend on
9 * which scheme is being used to represent forks.
10 *
11 * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
12 */
13
14#include <linux/pagemap.h>
15#include <linux/mpage.h>
16#include <linux/sched.h>
17
18#include "hfs_fs.h"
19#include "btree.h"
20
21static const struct file_operations hfs_file_operations;
22static const struct inode_operations hfs_file_inode_operations;
23
24/*================ Variable-like macros ================*/
25
26#define HFS_VALID_MODE_BITS (S_IFREG | S_IFDIR | S_IRWXUGO)
27
28static int hfs_writepage(struct page *page, struct writeback_control *wbc)
29{
30    return block_write_full_page(page, hfs_get_block, wbc);
31}
32
33static int hfs_readpage(struct file *file, struct page *page)
34{
35    return block_read_full_page(page, hfs_get_block);
36}
37
38static int hfs_write_begin(struct file *file, struct address_space *mapping,
39            loff_t pos, unsigned len, unsigned flags,
40            struct page **pagep, void **fsdata)
41{
42    *pagep = NULL;
43    return cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
44                hfs_get_block,
45                &HFS_I(mapping->host)->phys_size);
46}
47
48static sector_t hfs_bmap(struct address_space *mapping, sector_t block)
49{
50    return generic_block_bmap(mapping, block, hfs_get_block);
51}
52
53static int hfs_releasepage(struct page *page, gfp_t mask)
54{
55    struct inode *inode = page->mapping->host;
56    struct super_block *sb = inode->i_sb;
57    struct hfs_btree *tree;
58    struct hfs_bnode *node;
59    u32 nidx;
60    int i, res = 1;
61
62    switch (inode->i_ino) {
63    case HFS_EXT_CNID:
64        tree = HFS_SB(sb)->ext_tree;
65        break;
66    case HFS_CAT_CNID:
67        tree = HFS_SB(sb)->cat_tree;
68        break;
69    default:
70        BUG();
71        return 0;
72    }
73
74    if (!tree)
75        return 0;
76
77    if (tree->node_size >= PAGE_CACHE_SIZE) {
78        nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
79        spin_lock(&tree->hash_lock);
80        node = hfs_bnode_findhash(tree, nidx);
81        if (!node)
82            ;
83        else if (atomic_read(&node->refcnt))
84            res = 0;
85        if (res && node) {
86            hfs_bnode_unhash(node);
87            hfs_bnode_free(node);
88        }
89        spin_unlock(&tree->hash_lock);
90    } else {
91        nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift);
92        i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
93        spin_lock(&tree->hash_lock);
94        do {
95            node = hfs_bnode_findhash(tree, nidx++);
96            if (!node)
97                continue;
98            if (atomic_read(&node->refcnt)) {
99                res = 0;
100                break;
101            }
102            hfs_bnode_unhash(node);
103            hfs_bnode_free(node);
104        } while (--i && nidx < tree->node_count);
105        spin_unlock(&tree->hash_lock);
106    }
107    return res ? try_to_free_buffers(page) : 0;
108}
109
110static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb,
111        const struct iovec *iov, loff_t offset, unsigned long nr_segs)
112{
113    struct file *file = iocb->ki_filp;
114    struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host;
115
116    return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
117                  offset, nr_segs, hfs_get_block, NULL);
118}
119
120static int hfs_writepages(struct address_space *mapping,
121              struct writeback_control *wbc)
122{
123    return mpage_writepages(mapping, wbc, hfs_get_block);
124}
125
126const struct address_space_operations hfs_btree_aops = {
127    .readpage = hfs_readpage,
128    .writepage = hfs_writepage,
129    .sync_page = block_sync_page,
130    .write_begin = hfs_write_begin,
131    .write_end = generic_write_end,
132    .bmap = hfs_bmap,
133    .releasepage = hfs_releasepage,
134};
135
136const struct address_space_operations hfs_aops = {
137    .readpage = hfs_readpage,
138    .writepage = hfs_writepage,
139    .sync_page = block_sync_page,
140    .write_begin = hfs_write_begin,
141    .write_end = generic_write_end,
142    .bmap = hfs_bmap,
143    .direct_IO = hfs_direct_IO,
144    .writepages = hfs_writepages,
145};
146
147/*
148 * hfs_new_inode
149 */
150struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, int mode)
151{
152    struct super_block *sb = dir->i_sb;
153    struct inode *inode = new_inode(sb);
154    if (!inode)
155        return NULL;
156
157    mutex_init(&HFS_I(inode)->extents_lock);
158    INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
159    hfs_cat_build_key(sb, (btree_key *)&HFS_I(inode)->cat_key, dir->i_ino, name);
160    inode->i_ino = HFS_SB(sb)->next_id++;
161    inode->i_mode = mode;
162    inode->i_uid = current_fsuid();
163    inode->i_gid = current_fsgid();
164    inode->i_nlink = 1;
165    inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
166    HFS_I(inode)->flags = 0;
167    HFS_I(inode)->rsrc_inode = NULL;
168    HFS_I(inode)->fs_blocks = 0;
169    if (S_ISDIR(mode)) {
170        inode->i_size = 2;
171        HFS_SB(sb)->folder_count++;
172        if (dir->i_ino == HFS_ROOT_CNID)
173            HFS_SB(sb)->root_dirs++;
174        inode->i_op = &hfs_dir_inode_operations;
175        inode->i_fop = &hfs_dir_operations;
176        inode->i_mode |= S_IRWXUGO;
177        inode->i_mode &= ~HFS_SB(inode->i_sb)->s_dir_umask;
178    } else if (S_ISREG(mode)) {
179        HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
180        HFS_SB(sb)->file_count++;
181        if (dir->i_ino == HFS_ROOT_CNID)
182            HFS_SB(sb)->root_files++;
183        inode->i_op = &hfs_file_inode_operations;
184        inode->i_fop = &hfs_file_operations;
185        inode->i_mapping->a_ops = &hfs_aops;
186        inode->i_mode |= S_IRUGO|S_IXUGO;
187        if (mode & S_IWUSR)
188            inode->i_mode |= S_IWUGO;
189        inode->i_mode &= ~HFS_SB(inode->i_sb)->s_file_umask;
190        HFS_I(inode)->phys_size = 0;
191        HFS_I(inode)->alloc_blocks = 0;
192        HFS_I(inode)->first_blocks = 0;
193        HFS_I(inode)->cached_start = 0;
194        HFS_I(inode)->cached_blocks = 0;
195        memset(HFS_I(inode)->first_extents, 0, sizeof(hfs_extent_rec));
196        memset(HFS_I(inode)->cached_extents, 0, sizeof(hfs_extent_rec));
197    }
198    insert_inode_hash(inode);
199    mark_inode_dirty(inode);
200    set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
201    sb->s_dirt = 1;
202
203    return inode;
204}
205
206void hfs_delete_inode(struct inode *inode)
207{
208    struct super_block *sb = inode->i_sb;
209
210    dprint(DBG_INODE, "delete_inode: %lu\n", inode->i_ino);
211    if (S_ISDIR(inode->i_mode)) {
212        HFS_SB(sb)->folder_count--;
213        if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
214            HFS_SB(sb)->root_dirs--;
215        set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
216        sb->s_dirt = 1;
217        return;
218    }
219    HFS_SB(sb)->file_count--;
220    if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
221        HFS_SB(sb)->root_files--;
222    if (S_ISREG(inode->i_mode)) {
223        if (!inode->i_nlink) {
224            inode->i_size = 0;
225            hfs_file_truncate(inode);
226        }
227    }
228    set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
229    sb->s_dirt = 1;
230}
231
232void hfs_inode_read_fork(struct inode *inode, struct hfs_extent *ext,
233             __be32 __log_size, __be32 phys_size, u32 clump_size)
234{
235    struct super_block *sb = inode->i_sb;
236    u32 log_size = be32_to_cpu(__log_size);
237    u16 count;
238    int i;
239
240    memcpy(HFS_I(inode)->first_extents, ext, sizeof(hfs_extent_rec));
241    for (count = 0, i = 0; i < 3; i++)
242        count += be16_to_cpu(ext[i].count);
243    HFS_I(inode)->first_blocks = count;
244
245    inode->i_size = HFS_I(inode)->phys_size = log_size;
246    HFS_I(inode)->fs_blocks = (log_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
247    inode_set_bytes(inode, HFS_I(inode)->fs_blocks << sb->s_blocksize_bits);
248    HFS_I(inode)->alloc_blocks = be32_to_cpu(phys_size) /
249                     HFS_SB(sb)->alloc_blksz;
250    HFS_I(inode)->clump_blocks = clump_size / HFS_SB(sb)->alloc_blksz;
251    if (!HFS_I(inode)->clump_blocks)
252        HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
253}
254
255struct hfs_iget_data {
256    struct hfs_cat_key *key;
257    hfs_cat_rec *rec;
258};
259
260static int hfs_test_inode(struct inode *inode, void *data)
261{
262    struct hfs_iget_data *idata = data;
263    hfs_cat_rec *rec;
264
265    rec = idata->rec;
266    switch (rec->type) {
267    case HFS_CDR_DIR:
268        return inode->i_ino == be32_to_cpu(rec->dir.DirID);
269    case HFS_CDR_FIL:
270        return inode->i_ino == be32_to_cpu(rec->file.FlNum);
271    default:
272        BUG();
273        return 1;
274    }
275}
276
277/*
278 * hfs_read_inode
279 */
280static int hfs_read_inode(struct inode *inode, void *data)
281{
282    struct hfs_iget_data *idata = data;
283    struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
284    hfs_cat_rec *rec;
285
286    HFS_I(inode)->flags = 0;
287    HFS_I(inode)->rsrc_inode = NULL;
288    mutex_init(&HFS_I(inode)->extents_lock);
289    INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
290
291    /* Initialize the inode */
292    inode->i_uid = hsb->s_uid;
293    inode->i_gid = hsb->s_gid;
294    inode->i_nlink = 1;
295
296    if (idata->key)
297        HFS_I(inode)->cat_key = *idata->key;
298    else
299        HFS_I(inode)->flags |= HFS_FLG_RSRC;
300    HFS_I(inode)->tz_secondswest = sys_tz.tz_minuteswest * 60;
301
302    rec = idata->rec;
303    switch (rec->type) {
304    case HFS_CDR_FIL:
305        if (!HFS_IS_RSRC(inode)) {
306            hfs_inode_read_fork(inode, rec->file.ExtRec, rec->file.LgLen,
307                        rec->file.PyLen, be16_to_cpu(rec->file.ClpSize));
308        } else {
309            hfs_inode_read_fork(inode, rec->file.RExtRec, rec->file.RLgLen,
310                        rec->file.RPyLen, be16_to_cpu(rec->file.ClpSize));
311        }
312
313        inode->i_ino = be32_to_cpu(rec->file.FlNum);
314        inode->i_mode = S_IRUGO | S_IXUGO;
315        if (!(rec->file.Flags & HFS_FIL_LOCK))
316            inode->i_mode |= S_IWUGO;
317        inode->i_mode &= ~hsb->s_file_umask;
318        inode->i_mode |= S_IFREG;
319        inode->i_ctime = inode->i_atime = inode->i_mtime =
320                hfs_m_to_utime(rec->file.MdDat);
321        inode->i_op = &hfs_file_inode_operations;
322        inode->i_fop = &hfs_file_operations;
323        inode->i_mapping->a_ops = &hfs_aops;
324        break;
325    case HFS_CDR_DIR:
326        inode->i_ino = be32_to_cpu(rec->dir.DirID);
327        inode->i_size = be16_to_cpu(rec->dir.Val) + 2;
328        HFS_I(inode)->fs_blocks = 0;
329        inode->i_mode = S_IFDIR | (S_IRWXUGO & ~hsb->s_dir_umask);
330        inode->i_ctime = inode->i_atime = inode->i_mtime =
331                hfs_m_to_utime(rec->dir.MdDat);
332        inode->i_op = &hfs_dir_inode_operations;
333        inode->i_fop = &hfs_dir_operations;
334        break;
335    default:
336        make_bad_inode(inode);
337    }
338    return 0;
339}
340
341/*
342 * __hfs_iget()
343 *
344 * Given the MDB for a HFS filesystem, a 'key' and an 'entry' in
345 * the catalog B-tree and the 'type' of the desired file return the
346 * inode for that file/directory or NULL. Note that 'type' indicates
347 * whether we want the actual file or directory, or the corresponding
348 * metadata (AppleDouble header file or CAP metadata file).
349 */
350struct inode *hfs_iget(struct super_block *sb, struct hfs_cat_key *key, hfs_cat_rec *rec)
351{
352    struct hfs_iget_data data = { key, rec };
353    struct inode *inode;
354    u32 cnid;
355
356    switch (rec->type) {
357    case HFS_CDR_DIR:
358        cnid = be32_to_cpu(rec->dir.DirID);
359        break;
360    case HFS_CDR_FIL:
361        cnid = be32_to_cpu(rec->file.FlNum);
362        break;
363    default:
364        return NULL;
365    }
366    inode = iget5_locked(sb, cnid, hfs_test_inode, hfs_read_inode, &data);
367    if (inode && (inode->i_state & I_NEW))
368        unlock_new_inode(inode);
369    return inode;
370}
371
372void hfs_inode_write_fork(struct inode *inode, struct hfs_extent *ext,
373              __be32 *log_size, __be32 *phys_size)
374{
375    memcpy(ext, HFS_I(inode)->first_extents, sizeof(hfs_extent_rec));
376
377    if (log_size)
378        *log_size = cpu_to_be32(inode->i_size);
379    if (phys_size)
380        *phys_size = cpu_to_be32(HFS_I(inode)->alloc_blocks *
381                     HFS_SB(inode->i_sb)->alloc_blksz);
382}
383
384int hfs_write_inode(struct inode *inode, struct writeback_control *wbc)
385{
386    struct inode *main_inode = inode;
387    struct hfs_find_data fd;
388    hfs_cat_rec rec;
389
390    dprint(DBG_INODE, "hfs_write_inode: %lu\n", inode->i_ino);
391    hfs_ext_write_extent(inode);
392
393    if (inode->i_ino < HFS_FIRSTUSER_CNID) {
394        switch (inode->i_ino) {
395        case HFS_ROOT_CNID:
396            break;
397        case HFS_EXT_CNID:
398            hfs_btree_write(HFS_SB(inode->i_sb)->ext_tree);
399            return 0;
400        case HFS_CAT_CNID:
401            hfs_btree_write(HFS_SB(inode->i_sb)->cat_tree);
402            return 0;
403        default:
404            BUG();
405            return -EIO;
406        }
407    }
408
409    if (HFS_IS_RSRC(inode))
410        main_inode = HFS_I(inode)->rsrc_inode;
411
412    if (!main_inode->i_nlink)
413        return 0;
414
415    if (hfs_find_init(HFS_SB(main_inode->i_sb)->cat_tree, &fd))
416        /* panic? */
417        return -EIO;
418
419    fd.search_key->cat = HFS_I(main_inode)->cat_key;
420    if (hfs_brec_find(&fd))
421        /* panic? */
422        goto out;
423
424    if (S_ISDIR(main_inode->i_mode)) {
425        if (fd.entrylength < sizeof(struct hfs_cat_dir))
426            /* panic? */;
427        hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
428               sizeof(struct hfs_cat_dir));
429        if (rec.type != HFS_CDR_DIR ||
430            be32_to_cpu(rec.dir.DirID) != inode->i_ino) {
431        }
432
433        rec.dir.MdDat = hfs_u_to_mtime(inode->i_mtime);
434        rec.dir.Val = cpu_to_be16(inode->i_size - 2);
435
436        hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
437                sizeof(struct hfs_cat_dir));
438    } else if (HFS_IS_RSRC(inode)) {
439        hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
440                   sizeof(struct hfs_cat_file));
441        hfs_inode_write_fork(inode, rec.file.RExtRec,
442                     &rec.file.RLgLen, &rec.file.RPyLen);
443        hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
444                sizeof(struct hfs_cat_file));
445    } else {
446        if (fd.entrylength < sizeof(struct hfs_cat_file))
447            /* panic? */;
448        hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
449               sizeof(struct hfs_cat_file));
450        if (rec.type != HFS_CDR_FIL ||
451            be32_to_cpu(rec.file.FlNum) != inode->i_ino) {
452        }
453
454        if (inode->i_mode & S_IWUSR)
455            rec.file.Flags &= ~HFS_FIL_LOCK;
456        else
457            rec.file.Flags |= HFS_FIL_LOCK;
458        hfs_inode_write_fork(inode, rec.file.ExtRec, &rec.file.LgLen, &rec.file.PyLen);
459        rec.file.MdDat = hfs_u_to_mtime(inode->i_mtime);
460
461        hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
462                sizeof(struct hfs_cat_file));
463    }
464out:
465    hfs_find_exit(&fd);
466    return 0;
467}
468
469static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
470                      struct nameidata *nd)
471{
472    struct inode *inode = NULL;
473    hfs_cat_rec rec;
474    struct hfs_find_data fd;
475    int res;
476
477    if (HFS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
478        goto out;
479
480    inode = HFS_I(dir)->rsrc_inode;
481    if (inode)
482        goto out;
483
484    inode = new_inode(dir->i_sb);
485    if (!inode)
486        return ERR_PTR(-ENOMEM);
487
488    hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
489    fd.search_key->cat = HFS_I(dir)->cat_key;
490    res = hfs_brec_read(&fd, &rec, sizeof(rec));
491    if (!res) {
492        struct hfs_iget_data idata = { NULL, &rec };
493        hfs_read_inode(inode, &idata);
494    }
495    hfs_find_exit(&fd);
496    if (res) {
497        iput(inode);
498        return ERR_PTR(res);
499    }
500    HFS_I(inode)->rsrc_inode = dir;
501    HFS_I(dir)->rsrc_inode = inode;
502    igrab(dir);
503    hlist_add_head(&inode->i_hash, &HFS_SB(dir->i_sb)->rsrc_inodes);
504    mark_inode_dirty(inode);
505out:
506    d_add(dentry, inode);
507    return NULL;
508}
509
510void hfs_clear_inode(struct inode *inode)
511{
512    if (HFS_IS_RSRC(inode) && HFS_I(inode)->rsrc_inode) {
513        HFS_I(HFS_I(inode)->rsrc_inode)->rsrc_inode = NULL;
514        iput(HFS_I(inode)->rsrc_inode);
515    }
516}
517
518static int hfs_file_open(struct inode *inode, struct file *file)
519{
520    if (HFS_IS_RSRC(inode))
521        inode = HFS_I(inode)->rsrc_inode;
522    atomic_inc(&HFS_I(inode)->opencnt);
523    return 0;
524}
525
526static int hfs_file_release(struct inode *inode, struct file *file)
527{
528    //struct super_block *sb = inode->i_sb;
529
530    if (HFS_IS_RSRC(inode))
531        inode = HFS_I(inode)->rsrc_inode;
532    if (atomic_dec_and_test(&HFS_I(inode)->opencnt)) {
533        mutex_lock(&inode->i_mutex);
534        hfs_file_truncate(inode);
535        //if (inode->i_flags & S_DEAD) {
536        // hfs_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
537        // hfs_delete_inode(inode);
538        //}
539        mutex_unlock(&inode->i_mutex);
540    }
541    return 0;
542}
543
544/*
545 * hfs_notify_change()
546 *
547 * Based very closely on fs/msdos/inode.c by Werner Almesberger
548 *
549 * This is the notify_change() field in the super_operations structure
550 * for HFS file systems. The purpose is to take that changes made to
551 * an inode and apply then in a filesystem-dependent manner. In this
552 * case the process has a few of tasks to do:
553 * 1) prevent changes to the i_uid and i_gid fields.
554 * 2) map file permissions to the closest allowable permissions
555 * 3) Since multiple Linux files can share the same on-disk inode under
556 * HFS (for instance the data and resource forks of a file) a change
557 * to permissions must be applied to all other in-core inodes which
558 * correspond to the same HFS file.
559 */
560
561int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
562{
563    struct inode *inode = dentry->d_inode;
564    struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
565    int error;
566
567    error = inode_change_ok(inode, attr); /* basic permission checks */
568    if (error)
569        return error;
570
571    /* no uig/gid changes and limit which mode bits can be set */
572    if (((attr->ia_valid & ATTR_UID) &&
573         (attr->ia_uid != hsb->s_uid)) ||
574        ((attr->ia_valid & ATTR_GID) &&
575         (attr->ia_gid != hsb->s_gid)) ||
576        ((attr->ia_valid & ATTR_MODE) &&
577         ((S_ISDIR(inode->i_mode) &&
578           (attr->ia_mode != inode->i_mode)) ||
579          (attr->ia_mode & ~HFS_VALID_MODE_BITS)))) {
580        return hsb->s_quiet ? 0 : error;
581    }
582
583    if (attr->ia_valid & ATTR_MODE) {
584        /* Only the 'w' bits can ever change and only all together. */
585        if (attr->ia_mode & S_IWUSR)
586            attr->ia_mode = inode->i_mode | S_IWUGO;
587        else
588            attr->ia_mode = inode->i_mode & ~S_IWUGO;
589        attr->ia_mode &= S_ISDIR(inode->i_mode) ? ~hsb->s_dir_umask: ~hsb->s_file_umask;
590    }
591    error = inode_setattr(inode, attr);
592    if (error)
593        return error;
594
595    return 0;
596}
597
598
599static const struct file_operations hfs_file_operations = {
600    .llseek = generic_file_llseek,
601    .read = do_sync_read,
602    .aio_read = generic_file_aio_read,
603    .write = do_sync_write,
604    .aio_write = generic_file_aio_write,
605    .mmap = generic_file_mmap,
606    .splice_read = generic_file_splice_read,
607    .fsync = file_fsync,
608    .open = hfs_file_open,
609    .release = hfs_file_release,
610};
611
612static const struct inode_operations hfs_file_inode_operations = {
613    .lookup = hfs_file_lookup,
614    .truncate = hfs_file_truncate,
615    .setattr = hfs_inode_setattr,
616    .setxattr = hfs_setxattr,
617    .getxattr = hfs_getxattr,
618    .listxattr = hfs_listxattr,
619};
620

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