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);
74 struct inode *inode = folio->mapping->host;
75 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);
187 struct inode *hfs_new_inode(struct inode *dir, const struct qstr *name, umode_t mode)
190 struct inode *inode = new_inode(sb);
191 if (!inode)
194 mutex_init(&HFS_I(inode)->extents_lock);
195 INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
196 spin_lock_init(&HFS_I(inode)->open_dir_lock);
197 hfs_cat_build_key(sb, (btree_key *)&HFS_I(inode)->cat_key, dir->i_ino, name);
198 inode->i_ino = HFS_SB(sb)->next_id++;
199 inode->i_mode = mode;
200 inode->i_uid = current_fsuid();
201 inode->i_gid = current_fsgid();
202 set_nlink(inode, 1);
203 inode->i_mtime = inode->i_atime = inode_set_ctime_current(inode);
204 HFS_I(inode)->flags = 0;
205 HFS_I(inode)->rsrc_inode = NULL;
206 HFS_I(inode)->fs_blocks = 0;
208 inode->i_size = 2;
212 inode->i_op = &hfs_dir_inode_operations;
213 inode->i_fop = &hfs_dir_operations;
214 inode->i_mode |= S_IRWXUGO;
215 inode->i_mode &= ~HFS_SB(inode->i_sb)->s_dir_umask;
217 HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
221 inode->i_op = &hfs_file_inode_operations;
222 inode->i_fop = &hfs_file_operations;
223 inode->i_mapping->a_ops = &hfs_aops;
224 inode->i_mode |= S_IRUGO|S_IXUGO;
226 inode->i_mode |= S_IWUGO;
227 inode->i_mode &= ~HFS_SB(inode->i_sb)->s_file_umask;
228 HFS_I(inode)->phys_size = 0;
229 HFS_I(inode)->alloc_blocks = 0;
230 HFS_I(inode)->first_blocks = 0;
231 HFS_I(inode)->cached_start = 0;
232 HFS_I(inode)->cached_blocks = 0;
233 memset(HFS_I(inode)->first_extents, 0, sizeof(hfs_extent_rec));
234 memset(HFS_I(inode)->cached_extents, 0, sizeof(hfs_extent_rec));
236 insert_inode_hash(inode);
237 mark_inode_dirty(inode);
241 return inode;
244 void hfs_delete_inode(struct inode *inode)
246 struct super_block *sb = inode->i_sb;
248 hfs_dbg(INODE, "delete_inode: %lu\n", inode->i_ino);
249 if (S_ISDIR(inode->i_mode)) {
251 if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
258 if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
260 if (S_ISREG(inode->i_mode)) {
261 if (!inode->i_nlink) {
262 inode->i_size = 0;
263 hfs_file_truncate(inode);
270 void hfs_inode_read_fork(struct inode *inode, struct hfs_extent *ext,
273 struct super_block *sb = inode->i_sb;
278 memcpy(HFS_I(inode)->first_extents, ext, sizeof(hfs_extent_rec));
281 HFS_I(inode)->first_blocks = count;
283 inode->i_size = HFS_I(inode)->phys_size = log_size;
284 HFS_I(inode)->fs_blocks = (log_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
285 inode_set_bytes(inode, HFS_I(inode)->fs_blocks << sb->s_blocksize_bits);
286 HFS_I(inode)->alloc_blocks = be32_to_cpu(phys_size) /
288 HFS_I(inode)->clump_blocks = clump_size / HFS_SB(sb)->alloc_blksz;
289 if (!HFS_I(inode)->clump_blocks)
290 HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
298 static int hfs_test_inode(struct inode *inode, void *data)
306 return inode->i_ino == be32_to_cpu(rec->dir.DirID);
308 return inode->i_ino == be32_to_cpu(rec->file.FlNum);
318 static int hfs_read_inode(struct inode *inode, void *data)
321 struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
324 HFS_I(inode)->flags = 0;
325 HFS_I(inode)->rsrc_inode = NULL;
326 mutex_init(&HFS_I(inode)->extents_lock);
327 INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
328 spin_lock_init(&HFS_I(inode)->open_dir_lock);
330 /* Initialize the inode */
331 inode->i_uid = hsb->s_uid;
332 inode->i_gid = hsb->s_gid;
333 set_nlink(inode, 1);
336 HFS_I(inode)->cat_key = *idata->key;
338 HFS_I(inode)->flags |= HFS_FLG_RSRC;
339 HFS_I(inode)->tz_secondswest = sys_tz.tz_minuteswest * 60;
344 if (!HFS_IS_RSRC(inode)) {
345 hfs_inode_read_fork(inode, rec->file.ExtRec, rec->file.LgLen,
348 hfs_inode_read_fork(inode, rec->file.RExtRec, rec->file.RLgLen,
352 inode->i_ino = be32_to_cpu(rec->file.FlNum);
353 inode->i_mode = S_IRUGO | S_IXUGO;
355 inode->i_mode |= S_IWUGO;
356 inode->i_mode &= ~hsb->s_file_umask;
357 inode->i_mode |= S_IFREG;
358 inode->i_atime = inode->i_mtime = inode_set_ctime_to_ts(inode,
360 inode->i_op = &hfs_file_inode_operations;
361 inode->i_fop = &hfs_file_operations;
362 inode->i_mapping->a_ops = &hfs_aops;
365 inode->i_ino = be32_to_cpu(rec->dir.DirID);
366 inode->i_size = be16_to_cpu(rec->dir.Val) + 2;
367 HFS_I(inode)->fs_blocks = 0;
368 inode->i_mode = S_IFDIR | (S_IRWXUGO & ~hsb->s_dir_umask);
369 inode->i_atime = inode->i_mtime = inode_set_ctime_to_ts(inode,
371 inode->i_op = &hfs_dir_inode_operations;
372 inode->i_fop = &hfs_dir_operations;
375 make_bad_inode(inode);
385 * inode for that file/directory or NULL. Note that 'type' indicates
389 struct inode *hfs_iget(struct super_block *sb, struct hfs_cat_key *key, hfs_cat_rec *rec)
392 struct inode *inode;
405 inode = iget5_locked(sb, cnid, hfs_test_inode, hfs_read_inode, &data);
406 if (inode && (inode->i_state & I_NEW))
407 unlock_new_inode(inode);
408 return inode;
411 void hfs_inode_write_fork(struct inode *inode, struct hfs_extent *ext,
414 memcpy(ext, HFS_I(inode)->first_extents, sizeof(hfs_extent_rec));
417 *log_size = cpu_to_be32(inode->i_size);
419 *phys_size = cpu_to_be32(HFS_I(inode)->alloc_blocks *
420 HFS_SB(inode->i_sb)->alloc_blksz);
423 int hfs_write_inode(struct inode *inode, struct writeback_control *wbc)
425 struct inode *main_inode = inode;
430 hfs_dbg(INODE, "hfs_write_inode: %lu\n", inode->i_ino);
431 res = hfs_ext_write_extent(inode);
435 if (inode->i_ino < HFS_FIRSTUSER_CNID) {
436 switch (inode->i_ino) {
440 hfs_btree_write(HFS_SB(inode->i_sb)->ext_tree);
443 hfs_btree_write(HFS_SB(inode->i_sb)->cat_tree);
451 if (HFS_IS_RSRC(inode))
452 main_inode = HFS_I(inode)->rsrc_inode;
474 be32_to_cpu(rec.dir.DirID) != inode->i_ino) {
477 rec.dir.MdDat = hfs_u_to_mtime(inode->i_mtime);
478 rec.dir.Val = cpu_to_be16(inode->i_size - 2);
482 } else if (HFS_IS_RSRC(inode)) {
487 hfs_inode_write_fork(inode, rec.file.RExtRec,
497 be32_to_cpu(rec.file.FlNum) != inode->i_ino) {
500 if (inode->i_mode & S_IWUSR)
504 hfs_inode_write_fork(inode, rec.file.ExtRec, &rec.file.LgLen, &rec.file.PyLen);
505 rec.file.MdDat = hfs_u_to_mtime(inode->i_mtime);
516 static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
519 struct inode *inode = NULL;
527 inode = HFS_I(dir)->rsrc_inode;
528 if (inode)
531 inode = new_inode(dir->i_sb);
532 if (!inode)
537 iput(inode);
544 hfs_read_inode(inode, &idata);
548 iput(inode);
551 HFS_I(inode)->rsrc_inode = dir;
552 HFS_I(dir)->rsrc_inode = inode;
554 inode_fake_hash(inode);
555 mark_inode_dirty(inode);
558 return d_splice_alias(inode, dentry);
561 void hfs_evict_inode(struct inode *inode)
563 truncate_inode_pages_final(&inode->i_data);
564 clear_inode(inode);
565 if (HFS_IS_RSRC(inode) && HFS_I(inode)->rsrc_inode) {
566 HFS_I(HFS_I(inode)->rsrc_inode)->rsrc_inode = NULL;
567 iput(HFS_I(inode)->rsrc_inode);
571 static int hfs_file_open(struct inode *inode, struct file *file)
573 if (HFS_IS_RSRC(inode))
574 inode = HFS_I(inode)->rsrc_inode;
575 atomic_inc(&HFS_I(inode)->opencnt);
579 static int hfs_file_release(struct inode *inode, struct file *file)
581 //struct super_block *sb = inode->i_sb;
583 if (HFS_IS_RSRC(inode))
584 inode = HFS_I(inode)->rsrc_inode;
585 if (atomic_dec_and_test(&HFS_I(inode)->opencnt)) {
586 inode_lock(inode);
587 hfs_file_truncate(inode);
588 //if (inode->i_flags & S_DEAD) {
589 // hfs_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
590 // hfs_delete_inode(inode);
592 inode_unlock(inode);
600 * Based very closely on fs/msdos/inode.c by Werner Almesberger
604 * an inode and apply then in a filesystem-dependent manner. In this
608 * 3) Since multiple Linux files can share the same on-disk inode under
617 struct inode *inode = d_inode(dentry);
618 struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
632 ((S_ISDIR(inode->i_mode) &&
633 (attr->ia_mode != inode->i_mode)) ||
641 attr->ia_mode = inode->i_mode | S_IWUGO;
643 attr->ia_mode = inode->i_mode & ~S_IWUGO;
644 attr->ia_mode &= S_ISDIR(inode->i_mode) ? ~hsb->s_dir_umask: ~hsb->s_file_umask;
648 attr->ia_size != i_size_read(inode)) {
649 inode_dio_wait(inode);
651 error = inode_newsize_ok(inode, attr->ia_size);
655 truncate_setsize(inode, attr->ia_size);
656 hfs_file_truncate(inode);
657 inode->i_atime = inode->i_mtime = inode_set_ctime_current(inode);
660 setattr_copy(&nop_mnt_idmap, inode, attr);
661 mark_inode_dirty(inode);
668 struct inode *inode = filp->f_mapping->host;
675 inode_lock(inode);
677 /* sync the inode to buffers */
678 ret = write_inode_now(inode, 0);
681 sb = inode->i_sb;
687 inode_unlock(inode);