Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Christoph Hellwig | 34a2d31 | 2010-11-23 14:38:21 +0100 | [diff] [blame] | 11 | #include <linux/blkdev.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include <linux/mm.h> |
| 13 | #include <linux/fs.h> |
| 14 | #include <linux/pagemap.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include <linux/mpage.h> |
Alexey Dobriyan | e8edc6e | 2007-05-21 01:22:52 +0400 | [diff] [blame] | 16 | #include <linux/sched.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | |
| 18 | #include "hfsplus_fs.h" |
| 19 | #include "hfsplus_raw.h" |
| 20 | |
| 21 | static int hfsplus_readpage(struct file *file, struct page *page) |
| 22 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | return block_read_full_page(page, hfsplus_get_block); |
| 24 | } |
| 25 | |
| 26 | static int hfsplus_writepage(struct page *page, struct writeback_control *wbc) |
| 27 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | return block_write_full_page(page, hfsplus_get_block, wbc); |
| 29 | } |
| 30 | |
Nick Piggin | 7c0efc6 | 2007-10-16 01:25:09 -0700 | [diff] [blame] | 31 | static 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) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | { |
Christoph Hellwig | 282dc17 | 2010-06-04 11:29:55 +0200 | [diff] [blame] | 35 | int ret; |
| 36 | |
Nick Piggin | 7c0efc6 | 2007-10-16 01:25:09 -0700 | [diff] [blame] | 37 | *pagep = NULL; |
Christoph Hellwig | 282dc17 | 2010-06-04 11:29:55 +0200 | [diff] [blame] | 38 | ret = cont_write_begin(file, mapping, pos, len, flags, pagep, fsdata, |
Nick Piggin | 7c0efc6 | 2007-10-16 01:25:09 -0700 | [diff] [blame] | 39 | hfsplus_get_block, |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 40 | &HFSPLUS_I(mapping->host)->phys_size); |
Christoph Hellwig | 282dc17 | 2010-06-04 11:29:55 +0200 | [diff] [blame] | 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; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | } |
| 49 | |
| 50 | static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block) |
| 51 | { |
| 52 | return generic_block_bmap(mapping, block, hfsplus_get_block); |
| 53 | } |
| 54 | |
Al Viro | 27496a8 | 2005-10-21 03:20:48 -0400 | [diff] [blame] | 55 | static int hfsplus_releasepage(struct page *page, gfp_t mask) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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: |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 66 | tree = HFSPLUS_SB(sb)->ext_tree; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | break; |
| 68 | case HFSPLUS_CAT_CNID: |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 69 | tree = HFSPLUS_SB(sb)->cat_tree; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | break; |
| 71 | case HFSPLUS_ATTR_CNID: |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 72 | tree = HFSPLUS_SB(sb)->attr_tree; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | break; |
| 74 | default: |
| 75 | BUG(); |
| 76 | return 0; |
| 77 | } |
Eric Sesterhenn | 7063224 | 2008-05-12 14:02:21 -0700 | [diff] [blame] | 78 | if (!tree) |
| 79 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | if (tree->node_size >= PAGE_CACHE_SIZE) { |
Anton Salikhmetov | 2753cc2 | 2010-12-16 18:08:38 +0200 | [diff] [blame] | 81 | nidx = page->index >> |
| 82 | (tree->node_size_shift - PAGE_CACHE_SHIFT); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 { |
Anton Salikhmetov | 2753cc2 | 2010-12-16 18:08:38 +0200 | [diff] [blame] | 95 | nidx = page->index << |
| 96 | (PAGE_CACHE_SHIFT - tree->node_size_shift); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | return res ? try_to_free_buffers(page) : 0; |
| 113 | } |
| 114 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | static 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; |
Josef Sipek | f44ea03 | 2006-12-08 02:37:04 -0800 | [diff] [blame] | 119 | struct inode *inode = file->f_path.dentry->d_inode->i_mapping->host; |
Christoph Hellwig | eafdc7d | 2010-06-04 11:29:53 +0200 | [diff] [blame] | 120 | ssize_t ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | |
Christoph Hellwig | aacfc19c | 2011-06-24 14:29:47 -0400 | [diff] [blame^] | 122 | ret = blockdev_direct_IO(rw, iocb, inode, iov, offset, nr_segs, |
| 123 | hfsplus_get_block); |
Christoph Hellwig | eafdc7d | 2010-06-04 11:29:53 +0200 | [diff] [blame] | 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; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | static int hfsplus_writepages(struct address_space *mapping, |
| 141 | struct writeback_control *wbc) |
| 142 | { |
| 143 | return mpage_writepages(mapping, wbc, hfsplus_get_block); |
| 144 | } |
| 145 | |
Christoph Hellwig | f5e54d6 | 2006-06-28 04:26:44 -0700 | [diff] [blame] | 146 | const struct address_space_operations hfsplus_btree_aops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | .readpage = hfsplus_readpage, |
| 148 | .writepage = hfsplus_writepage, |
Nick Piggin | 7c0efc6 | 2007-10-16 01:25:09 -0700 | [diff] [blame] | 149 | .write_begin = hfsplus_write_begin, |
| 150 | .write_end = generic_write_end, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | .bmap = hfsplus_bmap, |
| 152 | .releasepage = hfsplus_releasepage, |
| 153 | }; |
| 154 | |
Christoph Hellwig | f5e54d6 | 2006-06-28 04:26:44 -0700 | [diff] [blame] | 155 | const struct address_space_operations hfsplus_aops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | .readpage = hfsplus_readpage, |
| 157 | .writepage = hfsplus_writepage, |
Nick Piggin | 7c0efc6 | 2007-10-16 01:25:09 -0700 | [diff] [blame] | 158 | .write_begin = hfsplus_write_begin, |
| 159 | .write_end = generic_write_end, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | .bmap = hfsplus_bmap, |
| 161 | .direct_IO = hfsplus_direct_IO, |
| 162 | .writepages = hfsplus_writepages, |
| 163 | }; |
| 164 | |
Al Viro | e16404e | 2009-02-20 05:55:13 +0000 | [diff] [blame] | 165 | const struct dentry_operations hfsplus_dentry_operations = { |
Duane Griffin | d45bce8 | 2007-07-15 23:41:23 -0700 | [diff] [blame] | 166 | .d_hash = hfsplus_hash_dentry, |
| 167 | .d_compare = hfsplus_compare_dentry, |
| 168 | }; |
| 169 | |
Anton Salikhmetov | 2753cc2 | 2010-12-16 18:08:38 +0200 | [diff] [blame] | 170 | static struct dentry *hfsplus_file_lookup(struct inode *dir, |
| 171 | struct dentry *dentry, struct nameidata *nd) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | { |
| 173 | struct hfs_find_data fd; |
| 174 | struct super_block *sb = dir->i_sb; |
| 175 | struct inode *inode = NULL; |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 176 | struct hfsplus_inode_info *hip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | int err; |
| 178 | |
| 179 | if (HFSPLUS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc")) |
| 180 | goto out; |
| 181 | |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 182 | inode = HFSPLUS_I(dir)->rsrc_inode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | if (inode) |
| 184 | goto out; |
| 185 | |
| 186 | inode = new_inode(sb); |
| 187 | if (!inode) |
| 188 | return ERR_PTR(-ENOMEM); |
| 189 | |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 190 | hip = HFSPLUS_I(inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | inode->i_ino = dir->i_ino; |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 192 | INIT_LIST_HEAD(&hip->open_dir_list); |
| 193 | mutex_init(&hip->extents_lock); |
Christoph Hellwig | b33b792 | 2010-11-23 14:38:13 +0100 | [diff] [blame] | 194 | hip->extent_state = 0; |
| 195 | hip->flags = 0; |
| 196 | set_bit(HFSPLUS_I_RSRC, &hip->flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 198 | hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | err = hfsplus_find_cat(sb, dir->i_ino, &fd); |
| 200 | if (!err) |
| 201 | err = hfsplus_cat_read_inode(inode, &fd); |
| 202 | hfs_find_exit(&fd); |
| 203 | if (err) { |
| 204 | iput(inode); |
| 205 | return ERR_PTR(err); |
| 206 | } |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 207 | hip->rsrc_inode = dir; |
| 208 | HFSPLUS_I(dir)->rsrc_inode = inode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | igrab(dir); |
Christoph Hellwig | 58a818f | 2010-10-01 05:44:02 +0200 | [diff] [blame] | 210 | |
| 211 | /* |
| 212 | * __mark_inode_dirty expects inodes to be hashed. Since we don't |
| 213 | * want resource fork inodes in the regular inode space, we make them |
| 214 | * appear hashed, but do not put on any lists. hlist_del() |
| 215 | * will work fine and require no locking. |
| 216 | */ |
Al Viro | 756acc2 | 2010-10-23 15:23:40 -0400 | [diff] [blame] | 217 | hlist_add_fake(&inode->i_hash); |
Christoph Hellwig | 58a818f | 2010-10-01 05:44:02 +0200 | [diff] [blame] | 218 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | mark_inode_dirty(inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | out: |
| 221 | d_add(dentry, inode); |
| 222 | return NULL; |
| 223 | } |
| 224 | |
Anton Salikhmetov | 2753cc2 | 2010-12-16 18:08:38 +0200 | [diff] [blame] | 225 | static void hfsplus_get_perms(struct inode *inode, |
| 226 | struct hfsplus_perm *perms, int dir) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | { |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 228 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | u16 mode; |
| 230 | |
| 231 | mode = be16_to_cpu(perms->mode); |
| 232 | |
| 233 | inode->i_uid = be32_to_cpu(perms->owner); |
| 234 | if (!inode->i_uid && !mode) |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 235 | inode->i_uid = sbi->uid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | |
| 237 | inode->i_gid = be32_to_cpu(perms->group); |
| 238 | if (!inode->i_gid && !mode) |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 239 | inode->i_gid = sbi->gid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | |
| 241 | if (dir) { |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 242 | mode = mode ? (mode & S_IALLUGO) : (S_IRWXUGO & ~(sbi->umask)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | mode |= S_IFDIR; |
| 244 | } else if (!mode) |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 245 | mode = S_IFREG | ((S_IRUGO|S_IWUGO) & ~(sbi->umask)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | inode->i_mode = mode; |
| 247 | |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 248 | HFSPLUS_I(inode)->userflags = perms->userflags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | if (perms->rootflags & HFSPLUS_FLG_IMMUTABLE) |
| 250 | inode->i_flags |= S_IMMUTABLE; |
| 251 | else |
| 252 | inode->i_flags &= ~S_IMMUTABLE; |
| 253 | if (perms->rootflags & HFSPLUS_FLG_APPEND) |
| 254 | inode->i_flags |= S_APPEND; |
| 255 | else |
| 256 | inode->i_flags &= ~S_APPEND; |
| 257 | } |
| 258 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | static int hfsplus_file_open(struct inode *inode, struct file *file) |
| 260 | { |
| 261 | if (HFSPLUS_IS_RSRC(inode)) |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 262 | inode = HFSPLUS_I(inode)->rsrc_inode; |
Alan Cox | 6e71529 | 2008-10-18 20:28:01 -0700 | [diff] [blame] | 263 | if (!(file->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS) |
| 264 | return -EOVERFLOW; |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 265 | atomic_inc(&HFSPLUS_I(inode)->opencnt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | return 0; |
| 267 | } |
| 268 | |
| 269 | static int hfsplus_file_release(struct inode *inode, struct file *file) |
| 270 | { |
| 271 | struct super_block *sb = inode->i_sb; |
| 272 | |
| 273 | if (HFSPLUS_IS_RSRC(inode)) |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 274 | inode = HFSPLUS_I(inode)->rsrc_inode; |
| 275 | if (atomic_dec_and_test(&HFSPLUS_I(inode)->opencnt)) { |
Jes Sorensen | 1b1dcc1 | 2006-01-09 15:59:24 -0800 | [diff] [blame] | 276 | mutex_lock(&inode->i_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | hfsplus_file_truncate(inode); |
| 278 | if (inode->i_flags & S_DEAD) { |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 279 | hfsplus_delete_cat(inode->i_ino, |
| 280 | HFSPLUS_SB(sb)->hidden_dir, NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | hfsplus_delete_inode(inode); |
| 282 | } |
Jes Sorensen | 1b1dcc1 | 2006-01-09 15:59:24 -0800 | [diff] [blame] | 283 | mutex_unlock(&inode->i_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | } |
| 285 | return 0; |
| 286 | } |
| 287 | |
Christoph Hellwig | d39aae9 | 2010-06-04 11:29:59 +0200 | [diff] [blame] | 288 | static int hfsplus_setattr(struct dentry *dentry, struct iattr *attr) |
| 289 | { |
| 290 | struct inode *inode = dentry->d_inode; |
| 291 | int error; |
| 292 | |
| 293 | error = inode_change_ok(inode, attr); |
| 294 | if (error) |
| 295 | return error; |
Christoph Hellwig | 1025774 | 2010-06-04 11:30:02 +0200 | [diff] [blame] | 296 | |
| 297 | if ((attr->ia_valid & ATTR_SIZE) && |
| 298 | attr->ia_size != i_size_read(inode)) { |
Christoph Hellwig | 562c72a | 2011-06-24 14:29:45 -0400 | [diff] [blame] | 299 | inode_dio_wait(inode); |
| 300 | |
Christoph Hellwig | 1025774 | 2010-06-04 11:30:02 +0200 | [diff] [blame] | 301 | error = vmtruncate(inode, attr->ia_size); |
| 302 | if (error) |
| 303 | return error; |
| 304 | } |
| 305 | |
| 306 | setattr_copy(inode, attr); |
| 307 | mark_inode_dirty(inode); |
| 308 | return 0; |
Christoph Hellwig | d39aae9 | 2010-06-04 11:29:59 +0200 | [diff] [blame] | 309 | } |
| 310 | |
Christoph Hellwig | eb29d66 | 2010-11-23 14:38:10 +0100 | [diff] [blame] | 311 | int hfsplus_file_fsync(struct file *file, int datasync) |
Al Viro | b5fc510 | 2010-07-04 12:24:09 +0400 | [diff] [blame] | 312 | { |
Christoph Hellwig | 2814697 | 2010-11-23 14:38:06 +0100 | [diff] [blame] | 313 | struct inode *inode = file->f_mapping->host; |
Christoph Hellwig | e349470 | 2010-11-23 14:38:15 +0100 | [diff] [blame] | 314 | struct hfsplus_inode_info *hip = HFSPLUS_I(inode); |
Christoph Hellwig | 2814697 | 2010-11-23 14:38:06 +0100 | [diff] [blame] | 315 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb); |
Christoph Hellwig | e349470 | 2010-11-23 14:38:15 +0100 | [diff] [blame] | 316 | int error = 0, error2; |
Al Viro | b5fc510 | 2010-07-04 12:24:09 +0400 | [diff] [blame] | 317 | |
Christoph Hellwig | 2814697 | 2010-11-23 14:38:06 +0100 | [diff] [blame] | 318 | /* |
| 319 | * Sync inode metadata into the catalog and extent trees. |
| 320 | */ |
| 321 | sync_inode_metadata(inode, 1); |
Al Viro | b5fc510 | 2010-07-04 12:24:09 +0400 | [diff] [blame] | 322 | |
Christoph Hellwig | 2814697 | 2010-11-23 14:38:06 +0100 | [diff] [blame] | 323 | /* |
| 324 | * And explicitly write out the btrees. |
| 325 | */ |
Christoph Hellwig | e349470 | 2010-11-23 14:38:15 +0100 | [diff] [blame] | 326 | if (test_and_clear_bit(HFSPLUS_I_CAT_DIRTY, &hip->flags)) |
| 327 | error = filemap_write_and_wait(sbi->cat_tree->inode->i_mapping); |
| 328 | |
| 329 | if (test_and_clear_bit(HFSPLUS_I_EXT_DIRTY, &hip->flags)) { |
Anton Salikhmetov | 2753cc2 | 2010-12-16 18:08:38 +0200 | [diff] [blame] | 330 | error2 = |
| 331 | filemap_write_and_wait(sbi->ext_tree->inode->i_mapping); |
Christoph Hellwig | e349470 | 2010-11-23 14:38:15 +0100 | [diff] [blame] | 332 | if (!error) |
| 333 | error = error2; |
| 334 | } |
| 335 | |
| 336 | if (test_and_clear_bit(HFSPLUS_I_ALLOC_DIRTY, &hip->flags)) { |
| 337 | error2 = filemap_write_and_wait(sbi->alloc_file->i_mapping); |
| 338 | if (!error) |
| 339 | error = error2; |
| 340 | } |
| 341 | |
Christoph Hellwig | 34a2d31 | 2010-11-23 14:38:21 +0100 | [diff] [blame] | 342 | if (!test_bit(HFSPLUS_SB_NOBARRIER, &sbi->flags)) |
| 343 | blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL); |
| 344 | |
Christoph Hellwig | 2814697 | 2010-11-23 14:38:06 +0100 | [diff] [blame] | 345 | return error; |
Al Viro | b5fc510 | 2010-07-04 12:24:09 +0400 | [diff] [blame] | 346 | } |
| 347 | |
Arjan van de Ven | 92e1d5b | 2007-02-12 00:55:39 -0800 | [diff] [blame] | 348 | static const struct inode_operations hfsplus_file_inode_operations = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | .lookup = hfsplus_file_lookup, |
| 350 | .truncate = hfsplus_file_truncate, |
Christoph Hellwig | d39aae9 | 2010-06-04 11:29:59 +0200 | [diff] [blame] | 351 | .setattr = hfsplus_setattr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | .setxattr = hfsplus_setxattr, |
| 353 | .getxattr = hfsplus_getxattr, |
| 354 | .listxattr = hfsplus_listxattr, |
| 355 | }; |
| 356 | |
Arjan van de Ven | 4b6f5d2 | 2006-03-28 01:56:42 -0800 | [diff] [blame] | 357 | static const struct file_operations hfsplus_file_operations = { |
Anton Salikhmetov | 20b7643 | 2010-12-16 18:08:40 +0200 | [diff] [blame] | 358 | .llseek = generic_file_llseek, |
Badari Pulavarty | 543ade1 | 2006-09-30 23:28:48 -0700 | [diff] [blame] | 359 | .read = do_sync_read, |
| 360 | .aio_read = generic_file_aio_read, |
| 361 | .write = do_sync_write, |
| 362 | .aio_write = generic_file_aio_write, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | .mmap = generic_file_mmap, |
Jens Axboe | 5ffc4ef | 2007-06-01 11:49:19 +0200 | [diff] [blame] | 364 | .splice_read = generic_file_splice_read, |
Al Viro | b5fc510 | 2010-07-04 12:24:09 +0400 | [diff] [blame] | 365 | .fsync = hfsplus_file_fsync, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | .open = hfsplus_file_open, |
| 367 | .release = hfsplus_file_release, |
Arnd Bergmann | 7cc4bcc | 2010-04-27 16:24:20 +0200 | [diff] [blame] | 368 | .unlocked_ioctl = hfsplus_ioctl, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | }; |
| 370 | |
| 371 | struct inode *hfsplus_new_inode(struct super_block *sb, int mode) |
| 372 | { |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 373 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | struct inode *inode = new_inode(sb); |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 375 | struct hfsplus_inode_info *hip; |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 376 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 377 | if (!inode) |
| 378 | return NULL; |
| 379 | |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 380 | inode->i_ino = sbi->next_cnid++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | inode->i_mode = mode; |
David Howells | 4ac8489 | 2008-11-14 10:38:54 +1100 | [diff] [blame] | 382 | inode->i_uid = current_fsuid(); |
| 383 | inode->i_gid = current_fsgid(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | inode->i_nlink = 1; |
| 385 | inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 386 | |
| 387 | hip = HFSPLUS_I(inode); |
| 388 | INIT_LIST_HEAD(&hip->open_dir_list); |
| 389 | mutex_init(&hip->extents_lock); |
| 390 | atomic_set(&hip->opencnt, 0); |
Christoph Hellwig | b33b792 | 2010-11-23 14:38:13 +0100 | [diff] [blame] | 391 | hip->extent_state = 0; |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 392 | hip->flags = 0; |
| 393 | memset(hip->first_extents, 0, sizeof(hfsplus_extent_rec)); |
| 394 | memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec)); |
| 395 | hip->alloc_blocks = 0; |
| 396 | hip->first_blocks = 0; |
| 397 | hip->cached_start = 0; |
| 398 | hip->cached_blocks = 0; |
| 399 | hip->phys_size = 0; |
| 400 | hip->fs_blocks = 0; |
| 401 | hip->rsrc_inode = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | if (S_ISDIR(inode->i_mode)) { |
| 403 | inode->i_size = 2; |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 404 | sbi->folder_count++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 405 | inode->i_op = &hfsplus_dir_inode_operations; |
| 406 | inode->i_fop = &hfsplus_dir_operations; |
| 407 | } else if (S_ISREG(inode->i_mode)) { |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 408 | sbi->file_count++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | inode->i_op = &hfsplus_file_inode_operations; |
| 410 | inode->i_fop = &hfsplus_file_operations; |
| 411 | inode->i_mapping->a_ops = &hfsplus_aops; |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 412 | hip->clump_blocks = sbi->data_clump_blocks; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | } else if (S_ISLNK(inode->i_mode)) { |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 414 | sbi->file_count++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | inode->i_op = &page_symlink_inode_operations; |
| 416 | inode->i_mapping->a_ops = &hfsplus_aops; |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 417 | hip->clump_blocks = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | } else |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 419 | sbi->file_count++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | insert_inode_hash(inode); |
| 421 | mark_inode_dirty(inode); |
| 422 | sb->s_dirt = 1; |
| 423 | |
| 424 | return inode; |
| 425 | } |
| 426 | |
| 427 | void hfsplus_delete_inode(struct inode *inode) |
| 428 | { |
| 429 | struct super_block *sb = inode->i_sb; |
| 430 | |
| 431 | if (S_ISDIR(inode->i_mode)) { |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 432 | HFSPLUS_SB(sb)->folder_count--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | sb->s_dirt = 1; |
| 434 | return; |
| 435 | } |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 436 | HFSPLUS_SB(sb)->file_count--; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | if (S_ISREG(inode->i_mode)) { |
| 438 | if (!inode->i_nlink) { |
| 439 | inode->i_size = 0; |
| 440 | hfsplus_file_truncate(inode); |
| 441 | } |
| 442 | } else if (S_ISLNK(inode->i_mode)) { |
| 443 | inode->i_size = 0; |
| 444 | hfsplus_file_truncate(inode); |
| 445 | } |
| 446 | sb->s_dirt = 1; |
| 447 | } |
| 448 | |
| 449 | void hfsplus_inode_read_fork(struct inode *inode, struct hfsplus_fork_raw *fork) |
| 450 | { |
| 451 | struct super_block *sb = inode->i_sb; |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 452 | struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb); |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 453 | struct hfsplus_inode_info *hip = HFSPLUS_I(inode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | u32 count; |
| 455 | int i; |
| 456 | |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 457 | memcpy(&hip->first_extents, &fork->extents, sizeof(hfsplus_extent_rec)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | for (count = 0, i = 0; i < 8; i++) |
| 459 | count += be32_to_cpu(fork->extents[i].block_count); |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 460 | hip->first_blocks = count; |
| 461 | memset(hip->cached_extents, 0, sizeof(hfsplus_extent_rec)); |
| 462 | hip->cached_start = 0; |
| 463 | hip->cached_blocks = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 465 | hip->alloc_blocks = be32_to_cpu(fork->total_blocks); |
| 466 | hip->phys_size = inode->i_size = be64_to_cpu(fork->total_size); |
| 467 | hip->fs_blocks = |
| 468 | (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits; |
| 469 | inode_set_bytes(inode, hip->fs_blocks << sb->s_blocksize_bits); |
| 470 | hip->clump_blocks = |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 471 | be32_to_cpu(fork->clump_size) >> sbi->alloc_blksz_shift; |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 472 | if (!hip->clump_blocks) { |
| 473 | hip->clump_blocks = HFSPLUS_IS_RSRC(inode) ? |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 474 | sbi->rsrc_clump_blocks : |
| 475 | sbi->data_clump_blocks; |
| 476 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | } |
| 478 | |
Anton Salikhmetov | 2753cc2 | 2010-12-16 18:08:38 +0200 | [diff] [blame] | 479 | void hfsplus_inode_write_fork(struct inode *inode, |
| 480 | struct hfsplus_fork_raw *fork) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | { |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 482 | memcpy(&fork->extents, &HFSPLUS_I(inode)->first_extents, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | sizeof(hfsplus_extent_rec)); |
| 484 | fork->total_size = cpu_to_be64(inode->i_size); |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 485 | fork->total_blocks = cpu_to_be32(HFSPLUS_I(inode)->alloc_blocks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 486 | } |
| 487 | |
| 488 | int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd) |
| 489 | { |
| 490 | hfsplus_cat_entry entry; |
| 491 | int res = 0; |
| 492 | u16 type; |
| 493 | |
| 494 | type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset); |
| 495 | |
Christoph Hellwig | f6089ff | 2010-10-14 09:54:28 -0400 | [diff] [blame] | 496 | HFSPLUS_I(inode)->linkid = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 497 | if (type == HFSPLUS_FOLDER) { |
| 498 | struct hfsplus_cat_folder *folder = &entry.folder; |
| 499 | |
| 500 | if (fd->entrylength < sizeof(struct hfsplus_cat_folder)) |
| 501 | /* panic? */; |
| 502 | hfs_bnode_read(fd->bnode, &entry, fd->entryoffset, |
| 503 | sizeof(struct hfsplus_cat_folder)); |
| 504 | hfsplus_get_perms(inode, &folder->permissions, 1); |
| 505 | inode->i_nlink = 1; |
| 506 | inode->i_size = 2 + be32_to_cpu(folder->valence); |
| 507 | inode->i_atime = hfsp_mt2ut(folder->access_date); |
| 508 | inode->i_mtime = hfsp_mt2ut(folder->content_mod_date); |
Roman Zippel | 9a4cad9 | 2006-01-18 17:43:09 -0800 | [diff] [blame] | 509 | inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date); |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 510 | HFSPLUS_I(inode)->create_date = folder->create_date; |
| 511 | HFSPLUS_I(inode)->fs_blocks = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | inode->i_op = &hfsplus_dir_inode_operations; |
| 513 | inode->i_fop = &hfsplus_dir_operations; |
| 514 | } else if (type == HFSPLUS_FILE) { |
| 515 | struct hfsplus_cat_file *file = &entry.file; |
| 516 | |
| 517 | if (fd->entrylength < sizeof(struct hfsplus_cat_file)) |
| 518 | /* panic? */; |
| 519 | hfs_bnode_read(fd->bnode, &entry, fd->entryoffset, |
| 520 | sizeof(struct hfsplus_cat_file)); |
| 521 | |
Christoph Hellwig | b33b792 | 2010-11-23 14:38:13 +0100 | [diff] [blame] | 522 | hfsplus_inode_read_fork(inode, HFSPLUS_IS_RSRC(inode) ? |
| 523 | &file->rsrc_fork : &file->data_fork); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | hfsplus_get_perms(inode, &file->permissions, 0); |
| 525 | inode->i_nlink = 1; |
| 526 | if (S_ISREG(inode->i_mode)) { |
| 527 | if (file->permissions.dev) |
Anton Salikhmetov | 2753cc2 | 2010-12-16 18:08:38 +0200 | [diff] [blame] | 528 | inode->i_nlink = |
| 529 | be32_to_cpu(file->permissions.dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | inode->i_op = &hfsplus_file_inode_operations; |
| 531 | inode->i_fop = &hfsplus_file_operations; |
| 532 | inode->i_mapping->a_ops = &hfsplus_aops; |
| 533 | } else if (S_ISLNK(inode->i_mode)) { |
| 534 | inode->i_op = &page_symlink_inode_operations; |
| 535 | inode->i_mapping->a_ops = &hfsplus_aops; |
| 536 | } else { |
| 537 | init_special_inode(inode, inode->i_mode, |
| 538 | be32_to_cpu(file->permissions.dev)); |
| 539 | } |
| 540 | inode->i_atime = hfsp_mt2ut(file->access_date); |
| 541 | inode->i_mtime = hfsp_mt2ut(file->content_mod_date); |
Roman Zippel | 9a4cad9 | 2006-01-18 17:43:09 -0800 | [diff] [blame] | 542 | inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date); |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 543 | HFSPLUS_I(inode)->create_date = file->create_date; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | } else { |
Roman Zippel | 634725a | 2006-01-18 17:43:05 -0800 | [diff] [blame] | 545 | printk(KERN_ERR "hfs: bad catalog entry used to create inode\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 546 | res = -EIO; |
| 547 | } |
| 548 | return res; |
| 549 | } |
| 550 | |
| 551 | int hfsplus_cat_write_inode(struct inode *inode) |
| 552 | { |
| 553 | struct inode *main_inode = inode; |
| 554 | struct hfs_find_data fd; |
| 555 | hfsplus_cat_entry entry; |
| 556 | |
| 557 | if (HFSPLUS_IS_RSRC(inode)) |
Christoph Hellwig | 6af502d | 2010-10-01 05:43:31 +0200 | [diff] [blame] | 558 | main_inode = HFSPLUS_I(inode)->rsrc_inode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 559 | |
| 560 | if (!main_inode->i_nlink) |
| 561 | return 0; |
| 562 | |
Christoph Hellwig | dd73a01 | 2010-10-01 05:42:59 +0200 | [diff] [blame] | 563 | if (hfs_find_init(HFSPLUS_SB(main_inode->i_sb)->cat_tree, &fd)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 564 | /* panic? */ |
| 565 | return -EIO; |
| 566 | |
| 567 | if (hfsplus_find_cat(main_inode->i_sb, main_inode->i_ino, &fd)) |
| 568 | /* panic? */ |
| 569 | goto out; |
| 570 | |
| 571 | if (S_ISDIR(main_inode->i_mode)) { |
| 572 | struct hfsplus_cat_folder *folder = &entry.folder; |
| 573 | |
| 574 | if (fd.entrylength < sizeof(struct hfsplus_cat_folder)) |
| 575 | /* panic? */; |
| 576 | hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, |
| 577 | sizeof(struct hfsplus_cat_folder)); |
| 578 | /* simple node checks? */ |
Christoph Hellwig | 90e6169 | 2010-10-14 09:54:39 -0400 | [diff] [blame] | 579 | hfsplus_cat_set_perms(inode, &folder->permissions); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | folder->access_date = hfsp_ut2mt(inode->i_atime); |
| 581 | folder->content_mod_date = hfsp_ut2mt(inode->i_mtime); |
| 582 | folder->attribute_mod_date = hfsp_ut2mt(inode->i_ctime); |
| 583 | folder->valence = cpu_to_be32(inode->i_size - 2); |
| 584 | hfs_bnode_write(fd.bnode, &entry, fd.entryoffset, |
| 585 | sizeof(struct hfsplus_cat_folder)); |
| 586 | } else if (HFSPLUS_IS_RSRC(inode)) { |
| 587 | struct hfsplus_cat_file *file = &entry.file; |
| 588 | hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, |
| 589 | sizeof(struct hfsplus_cat_file)); |
| 590 | hfsplus_inode_write_fork(inode, &file->rsrc_fork); |
| 591 | hfs_bnode_write(fd.bnode, &entry, fd.entryoffset, |
| 592 | sizeof(struct hfsplus_cat_file)); |
| 593 | } else { |
| 594 | struct hfsplus_cat_file *file = &entry.file; |
| 595 | |
| 596 | if (fd.entrylength < sizeof(struct hfsplus_cat_file)) |
| 597 | /* panic? */; |
| 598 | hfs_bnode_read(fd.bnode, &entry, fd.entryoffset, |
| 599 | sizeof(struct hfsplus_cat_file)); |
| 600 | hfsplus_inode_write_fork(inode, &file->data_fork); |
Christoph Hellwig | 90e6169 | 2010-10-14 09:54:39 -0400 | [diff] [blame] | 601 | hfsplus_cat_set_perms(inode, &file->permissions); |
Anton Salikhmetov | 2753cc2 | 2010-12-16 18:08:38 +0200 | [diff] [blame] | 602 | if (HFSPLUS_FLG_IMMUTABLE & |
| 603 | (file->permissions.rootflags | |
| 604 | file->permissions.userflags)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 605 | file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED); |
| 606 | else |
| 607 | file->flags &= cpu_to_be16(~HFSPLUS_FILE_LOCKED); |
| 608 | file->access_date = hfsp_ut2mt(inode->i_atime); |
| 609 | file->content_mod_date = hfsp_ut2mt(inode->i_mtime); |
| 610 | file->attribute_mod_date = hfsp_ut2mt(inode->i_ctime); |
| 611 | hfs_bnode_write(fd.bnode, &entry, fd.entryoffset, |
| 612 | sizeof(struct hfsplus_cat_file)); |
| 613 | } |
Christoph Hellwig | e349470 | 2010-11-23 14:38:15 +0100 | [diff] [blame] | 614 | |
| 615 | set_bit(HFSPLUS_I_CAT_DIRTY, &HFSPLUS_I(inode)->flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | out: |
| 617 | hfs_find_exit(&fd); |
| 618 | return 0; |
| 619 | } |