19 static int fat_ioctl_get_attributes(struct inode *inode, u32 __user *user_attr)  in fat_ioctl_get_attributes()  argument
23 	mutex_lock(&inode->i_mutex);  in fat_ioctl_get_attributes()
24 	attr = fat_make_attrs(inode);  in fat_ioctl_get_attributes()
25 	mutex_unlock(&inode->i_mutex);  in fat_ioctl_get_attributes()
32 	struct inode *inode = file_inode(file);  in fat_ioctl_set_attributes()  local
33 	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);  in fat_ioctl_set_attributes()
34 	int is_dir = S_ISDIR(inode->i_mode);  in fat_ioctl_set_attributes()
46 	mutex_lock(&inode->i_mutex);  in fat_ioctl_set_attributes()
56 	attr |= (MSDOS_I(inode)->i_attrs & ATTR_VOLUME) |  in fat_ioctl_set_attributes()
58 	oldattr = fat_make_attrs(inode);  in fat_ioctl_set_attributes()
62 	ia.ia_ctime = current_fs_time(inode->i_sb);  in fat_ioctl_set_attributes()
67 			S_IRUGO | S_IWUGO | (inode->i_mode & S_IXUGO));  in fat_ioctl_set_attributes()
71 	if (inode->i_ino == MSDOS_ROOT_INO && attr != ATTR_DIR) {  in fat_ioctl_set_attributes()
100 			inode->i_flags |= S_IMMUTABLE;  in fat_ioctl_set_attributes()
102 			inode->i_flags &= ~S_IMMUTABLE;  in fat_ioctl_set_attributes()
105 	fat_save_attrs(inode, attr);  in fat_ioctl_set_attributes()
106 	mark_inode_dirty(inode);  in fat_ioctl_set_attributes()
108 	mutex_unlock(&inode->i_mutex);  in fat_ioctl_set_attributes()
114 static int fat_ioctl_get_volume_id(struct inode *inode, u32 __user *user_attr)  in fat_ioctl_get_volume_id()  argument
116 	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);  in fat_ioctl_get_volume_id()
122 	struct inode *inode = file_inode(filp);  in fat_generic_ioctl()  local
127 		return fat_ioctl_get_attributes(inode, user_attr);  in fat_generic_ioctl()
131 		return fat_ioctl_get_volume_id(inode, user_attr);  in fat_generic_ioctl()
146 static int fat_file_release(struct inode *inode, struct file *filp)  in fat_file_release()  argument
149 	     MSDOS_SB(inode->i_sb)->options.flush) {  in fat_file_release()
150 		fat_flush_inodes(inode->i_sb, inode, NULL);  in fat_file_release()
158 	struct inode *inode = filp->f_mapping->host;  in fat_file_fsync()  local
162 	err = sync_mapping_buffers(MSDOS_SB(inode->i_sb)->fat_inode->i_mapping);  in fat_file_fsync()
182 static int fat_cont_expand(struct inode *inode, loff_t size)  in fat_cont_expand()  argument
184 	struct address_space *mapping = inode->i_mapping;  in fat_cont_expand()
185 	loff_t start = inode->i_size, count = size - inode->i_size;  in fat_cont_expand()
188 	err = generic_cont_expand_simple(inode, size);  in fat_cont_expand()
192 	inode->i_ctime = inode->i_mtime = CURRENT_TIME_SEC;  in fat_cont_expand()
193 	mark_inode_dirty(inode);  in fat_cont_expand()
194 	if (IS_SYNC(inode)) {  in fat_cont_expand()
206 		err2 = write_inode_now(inode, 1);  in fat_cont_expand()
219 static int fat_free(struct inode *inode, int skip)  in fat_free()  argument
221 	struct super_block *sb = inode->i_sb;  in fat_free()
224 	if (MSDOS_I(inode)->i_start == 0)  in fat_free()
227 	fat_cache_inval_inode(inode);  in fat_free()
229 	wait = IS_DIRSYNC(inode);  in fat_free()
230 	i_start = free_start = MSDOS_I(inode)->i_start;  in fat_free()
231 	i_logstart = MSDOS_I(inode)->i_logstart;  in fat_free()
235 		MSDOS_I(inode)->i_start = 0;  in fat_free()
236 		MSDOS_I(inode)->i_logstart = 0;  in fat_free()
238 	MSDOS_I(inode)->i_attrs |= ATTR_ARCH;  in fat_free()
239 	inode->i_ctime = inode->i_mtime = CURRENT_TIME_SEC;  in fat_free()
241 		err = fat_sync_inode(inode);  in fat_free()
243 			MSDOS_I(inode)->i_start = i_start;  in fat_free()
244 			MSDOS_I(inode)->i_logstart = i_logstart;  in fat_free()
248 		mark_inode_dirty(inode);  in fat_free()
255 		ret = fat_get_cluster(inode, skip - 1, &fclus, &dclus);  in fat_free()
262 		ret = fat_ent_read(inode, &fatent, dclus);  in fat_free()
269 				     __func__, MSDOS_I(inode)->i_pos);  in fat_free()
272 			err = fat_ent_write(inode, &fatent, FAT_ENT_EOF, wait);  in fat_free()
282 	inode->i_blocks = skip << (MSDOS_SB(sb)->cluster_bits - 9);  in fat_free()
285 	return fat_free_clusters(inode, free_start);  in fat_free()
288 void fat_truncate_blocks(struct inode *inode, loff_t offset)  in fat_truncate_blocks()  argument
290 	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);  in fat_truncate_blocks()
298 	if (MSDOS_I(inode)->mmu_private > offset)  in fat_truncate_blocks()
299 		MSDOS_I(inode)->mmu_private = offset;  in fat_truncate_blocks()
303 	fat_free(inode, nr_clusters);  in fat_truncate_blocks()
304 	fat_flush_inodes(inode->i_sb, inode, NULL);  in fat_truncate_blocks()
309 	struct inode *inode = d_inode(dentry);  in fat_getattr()  local
310 	generic_fillattr(inode, stat);  in fat_getattr()
311 	stat->blksize = MSDOS_SB(inode->i_sb)->cluster_size;  in fat_getattr()
313 	if (MSDOS_SB(inode->i_sb)->options.nfs == FAT_NFS_NOSTALE_RO) {  in fat_getattr()
315 		stat->ino = fat_i_pos_read(MSDOS_SB(inode->i_sb), inode);  in fat_getattr()
322 			     struct inode *inode, umode_t *mode_ptr)  in fat_sanitize_mode()  argument
331 	if (S_ISREG(inode->i_mode))  in fat_sanitize_mode()
344 	if ((perm & (S_IRUGO | S_IXUGO)) != (inode->i_mode & (S_IRUGO|S_IXUGO)))  in fat_sanitize_mode()
346 	if (fat_mode_can_hold_ro(inode)) {  in fat_sanitize_mode()
359 static int fat_allow_set_time(struct msdos_sb_info *sbi, struct inode *inode)  in fat_allow_set_time()  argument
363 	if (!uid_eq(current_fsuid(), inode->i_uid)) {  in fat_allow_set_time()
364 		if (in_group_p(inode->i_gid))  in fat_allow_set_time()
381 	struct inode *inode = d_inode(dentry);  in fat_setattr()  local
388 		if (fat_allow_set_time(sbi, inode))  in fat_setattr()
392 	error = inode_change_ok(inode, attr);  in fat_setattr()
407 		inode_dio_wait(inode);  in fat_setattr()
409 		if (attr->ia_size > inode->i_size) {  in fat_setattr()
410 			error = fat_cont_expand(inode, attr->ia_size);  in fat_setattr()
436 		if (fat_sanitize_mode(sbi, inode, &attr->ia_mode) < 0)  in fat_setattr()
441 		error = fat_block_truncate_page(inode, attr->ia_size);  in fat_setattr()
444 		down_write(&MSDOS_I(inode)->truncate_lock);  in fat_setattr()
445 		truncate_setsize(inode, attr->ia_size);  in fat_setattr()
446 		fat_truncate_blocks(inode, attr->ia_size);  in fat_setattr()
447 		up_write(&MSDOS_I(inode)->truncate_lock);  in fat_setattr()
450 	setattr_copy(inode, attr);  in fat_setattr()
451 	mark_inode_dirty(inode);  in fat_setattr()