Lines Matching refs:inode
2 * linux/fs/hfs/inode.c
8 * This file contains inode-related functions which do not depend on
44 struct inode *inode = mapping->host;
46 if (to > inode->i_size) {
47 truncate_pagecache(inode, inode->i_size);
48 hfs_file_truncate(inode);
75 struct inode *inode = page->mapping->host;
76 struct super_block *sb = inode->i_sb;
82 switch (inode->i_ino) {
134 struct inode *inode = mapping->host;
138 ret = blockdev_direct_IO(iocb, inode, iter, hfs_get_block);
145 loff_t isize = i_size_read(inode);
183 struct inode *hfs_new_inode(struct inode *dir, const struct qstr *name, umode_t mode)
186 struct inode *inode = new_inode(sb);
187 if (!inode)
190 mutex_init(&HFS_I(inode)->extents_lock);
191 INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
192 spin_lock_init(&HFS_I(inode)->open_dir_lock);
193 hfs_cat_build_key(sb, (btree_key *)&HFS_I(inode)->cat_key, dir->i_ino, name);
194 inode->i_ino = HFS_SB(sb)->next_id++;
195 inode->i_mode = mode;
196 inode->i_uid = current_fsuid();
197 inode->i_gid = current_fsgid();
198 set_nlink(inode, 1);
199 inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
200 HFS_I(inode)->flags = 0;
201 HFS_I(inode)->rsrc_inode = NULL;
202 HFS_I(inode)->fs_blocks = 0;
204 inode->i_size = 2;
208 inode->i_op = &hfs_dir_inode_operations;
209 inode->i_fop = &hfs_dir_operations;
210 inode->i_mode |= S_IRWXUGO;
211 inode->i_mode &= ~HFS_SB(inode->i_sb)->s_dir_umask;
213 HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
217 inode->i_op = &hfs_file_inode_operations;
218 inode->i_fop = &hfs_file_operations;
219 inode->i_mapping->a_ops = &hfs_aops;
220 inode->i_mode |= S_IRUGO|S_IXUGO;
222 inode->i_mode |= S_IWUGO;
223 inode->i_mode &= ~HFS_SB(inode->i_sb)->s_file_umask;
224 HFS_I(inode)->phys_size = 0;
225 HFS_I(inode)->alloc_blocks = 0;
226 HFS_I(inode)->first_blocks = 0;
227 HFS_I(inode)->cached_start = 0;
228 HFS_I(inode)->cached_blocks = 0;
229 memset(HFS_I(inode)->first_extents, 0, sizeof(hfs_extent_rec));
230 memset(HFS_I(inode)->cached_extents, 0, sizeof(hfs_extent_rec));
232 insert_inode_hash(inode);
233 mark_inode_dirty(inode);
237 return inode;
240 void hfs_delete_inode(struct inode *inode)
242 struct super_block *sb = inode->i_sb;
244 hfs_dbg(INODE, "delete_inode: %lu\n", inode->i_ino);
245 if (S_ISDIR(inode->i_mode)) {
247 if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
254 if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
256 if (S_ISREG(inode->i_mode)) {
257 if (!inode->i_nlink) {
258 inode->i_size = 0;
259 hfs_file_truncate(inode);
266 void hfs_inode_read_fork(struct inode *inode, struct hfs_extent *ext,
269 struct super_block *sb = inode->i_sb;
274 memcpy(HFS_I(inode)->first_extents, ext, sizeof(hfs_extent_rec));
277 HFS_I(inode)->first_blocks = count;
279 inode->i_size = HFS_I(inode)->phys_size = log_size;
280 HFS_I(inode)->fs_blocks = (log_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
281 inode_set_bytes(inode, HFS_I(inode)->fs_blocks << sb->s_blocksize_bits);
282 HFS_I(inode)->alloc_blocks = be32_to_cpu(phys_size) /
284 HFS_I(inode)->clump_blocks = clump_size / HFS_SB(sb)->alloc_blksz;
285 if (!HFS_I(inode)->clump_blocks)
286 HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
294 static int hfs_test_inode(struct inode *inode, void *data)
302 return inode->i_ino == be32_to_cpu(rec->dir.DirID);
304 return inode->i_ino == be32_to_cpu(rec->file.FlNum);
314 static int hfs_read_inode(struct inode *inode, void *data)
317 struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
320 HFS_I(inode)->flags = 0;
321 HFS_I(inode)->rsrc_inode = NULL;
322 mutex_init(&HFS_I(inode)->extents_lock);
323 INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
324 spin_lock_init(&HFS_I(inode)->open_dir_lock);
326 /* Initialize the inode */
327 inode->i_uid = hsb->s_uid;
328 inode->i_gid = hsb->s_gid;
329 set_nlink(inode, 1);
332 HFS_I(inode)->cat_key = *idata->key;
334 HFS_I(inode)->flags |= HFS_FLG_RSRC;
335 HFS_I(inode)->tz_secondswest = sys_tz.tz_minuteswest * 60;
340 if (!HFS_IS_RSRC(inode)) {
341 hfs_inode_read_fork(inode, rec->file.ExtRec, rec->file.LgLen,
344 hfs_inode_read_fork(inode, rec->file.RExtRec, rec->file.RLgLen,
348 inode->i_ino = be32_to_cpu(rec->file.FlNum);
349 inode->i_mode = S_IRUGO | S_IXUGO;
351 inode->i_mode |= S_IWUGO;
352 inode->i_mode &= ~hsb->s_file_umask;
353 inode->i_mode |= S_IFREG;
354 inode->i_ctime = inode->i_atime = inode->i_mtime =
356 inode->i_op = &hfs_file_inode_operations;
357 inode->i_fop = &hfs_file_operations;
358 inode->i_mapping->a_ops = &hfs_aops;
361 inode->i_ino = be32_to_cpu(rec->dir.DirID);
362 inode->i_size = be16_to_cpu(rec->dir.Val) + 2;
363 HFS_I(inode)->fs_blocks = 0;
364 inode->i_mode = S_IFDIR | (S_IRWXUGO & ~hsb->s_dir_umask);
365 inode->i_ctime = inode->i_atime = inode->i_mtime =
367 inode->i_op = &hfs_dir_inode_operations;
368 inode->i_fop = &hfs_dir_operations;
371 make_bad_inode(inode);
381 * inode for that file/directory or NULL. Note that 'type' indicates
385 struct inode *hfs_iget(struct super_block *sb, struct hfs_cat_key *key, hfs_cat_rec *rec)
388 struct inode *inode;
401 inode = iget5_locked(sb, cnid, hfs_test_inode, hfs_read_inode, &data);
402 if (inode && (inode->i_state & I_NEW))
403 unlock_new_inode(inode);
404 return inode;
407 void hfs_inode_write_fork(struct inode *inode, struct hfs_extent *ext,
410 memcpy(ext, HFS_I(inode)->first_extents, sizeof(hfs_extent_rec));
413 *log_size = cpu_to_be32(inode->i_size);
415 *phys_size = cpu_to_be32(HFS_I(inode)->alloc_blocks *
416 HFS_SB(inode->i_sb)->alloc_blksz);
419 int hfs_write_inode(struct inode *inode, struct writeback_control *wbc)
421 struct inode *main_inode = inode;
426 hfs_dbg(INODE, "hfs_write_inode: %lu\n", inode->i_ino);
427 res = hfs_ext_write_extent(inode);
431 if (inode->i_ino < HFS_FIRSTUSER_CNID) {
432 switch (inode->i_ino) {
436 hfs_btree_write(HFS_SB(inode->i_sb)->ext_tree);
439 hfs_btree_write(HFS_SB(inode->i_sb)->cat_tree);
447 if (HFS_IS_RSRC(inode))
448 main_inode = HFS_I(inode)->rsrc_inode;
470 be32_to_cpu(rec.dir.DirID) != inode->i_ino) {
473 rec.dir.MdDat = hfs_u_to_mtime(inode->i_mtime);
474 rec.dir.Val = cpu_to_be16(inode->i_size - 2);
478 } else if (HFS_IS_RSRC(inode)) {
483 hfs_inode_write_fork(inode, rec.file.RExtRec,
493 be32_to_cpu(rec.file.FlNum) != inode->i_ino) {
496 if (inode->i_mode & S_IWUSR)
500 hfs_inode_write_fork(inode, rec.file.ExtRec, &rec.file.LgLen, &rec.file.PyLen);
501 rec.file.MdDat = hfs_u_to_mtime(inode->i_mtime);
512 static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
515 struct inode *inode = NULL;
523 inode = HFS_I(dir)->rsrc_inode;
524 if (inode)
527 inode = new_inode(dir->i_sb);
528 if (!inode)
533 iput(inode);
540 hfs_read_inode(inode, &idata);
544 iput(inode);
547 HFS_I(inode)->rsrc_inode = dir;
548 HFS_I(dir)->rsrc_inode = inode;
550 inode_fake_hash(inode);
551 mark_inode_dirty(inode);
554 return d_splice_alias(inode, dentry);
557 void hfs_evict_inode(struct inode *inode)
559 truncate_inode_pages_final(&inode->i_data);
560 clear_inode(inode);
561 if (HFS_IS_RSRC(inode) && HFS_I(inode)->rsrc_inode) {
562 HFS_I(HFS_I(inode)->rsrc_inode)->rsrc_inode = NULL;
563 iput(HFS_I(inode)->rsrc_inode);
567 static int hfs_file_open(struct inode *inode, struct file *file)
569 if (HFS_IS_RSRC(inode))
570 inode = HFS_I(inode)->rsrc_inode;
571 atomic_inc(&HFS_I(inode)->opencnt);
575 static int hfs_file_release(struct inode *inode, struct file *file)
577 //struct super_block *sb = inode->i_sb;
579 if (HFS_IS_RSRC(inode))
580 inode = HFS_I(inode)->rsrc_inode;
581 if (atomic_dec_and_test(&HFS_I(inode)->opencnt)) {
582 inode_lock(inode);
583 hfs_file_truncate(inode);
584 //if (inode->i_flags & S_DEAD) {
585 // hfs_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
586 // hfs_delete_inode(inode);
588 inode_unlock(inode);
596 * Based very closely on fs/msdos/inode.c by Werner Almesberger
600 * an inode and apply then in a filesystem-dependent manner. In this
604 * 3) Since multiple Linux files can share the same on-disk inode under
612 struct inode *inode = d_inode(dentry);
613 struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
626 ((S_ISDIR(inode->i_mode) &&
627 (attr->ia_mode != inode->i_mode)) ||
635 attr->ia_mode = inode->i_mode | S_IWUGO;
637 attr->ia_mode = inode->i_mode & ~S_IWUGO;
638 attr->ia_mode &= S_ISDIR(inode->i_mode) ? ~hsb->s_dir_umask: ~hsb->s_file_umask;
642 attr->ia_size != i_size_read(inode)) {
643 inode_dio_wait(inode);
645 error = inode_newsize_ok(inode, attr->ia_size);
649 truncate_setsize(inode, attr->ia_size);
650 hfs_file_truncate(inode);
651 inode->i_atime = inode->i_mtime = inode->i_ctime =
652 current_time(inode);
655 setattr_copy(inode, attr);
656 mark_inode_dirty(inode);
663 struct inode *inode = filp->f_mapping->host;
670 inode_lock(inode);
672 /* sync the inode to buffers */
673 ret = write_inode_now(inode, 0);
676 sb = inode->i_sb;
682 inode_unlock(inode);