23 static int fat_ioctl_get_attributes(struct inode *inode, u32 __user *user_attr)  in fat_ioctl_get_attributes()  argument
27 	inode_lock(inode);  in fat_ioctl_get_attributes()
28 	attr = fat_make_attrs(inode);  in fat_ioctl_get_attributes()
29 	inode_unlock(inode);  in fat_ioctl_get_attributes()
36 	struct inode *inode = file_inode(file);  in fat_ioctl_set_attributes()  local
37 	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);  in fat_ioctl_set_attributes()
38 	int is_dir = S_ISDIR(inode->i_mode);  in fat_ioctl_set_attributes()
50 	inode_lock(inode);  in fat_ioctl_set_attributes()
60 	attr |= (MSDOS_I(inode)->i_attrs & ATTR_VOLUME) |  in fat_ioctl_set_attributes()
62 	oldattr = fat_make_attrs(inode);  in fat_ioctl_set_attributes()
66 	ia.ia_ctime = current_time(inode);  in fat_ioctl_set_attributes()
71 			S_IRUGO | S_IWUGO | (inode->i_mode & S_IXUGO));  in fat_ioctl_set_attributes()
75 	if (inode->i_ino == MSDOS_ROOT_INO && attr != ATTR_DIR) {  in fat_ioctl_set_attributes()
104 			inode->i_flags |= S_IMMUTABLE;  in fat_ioctl_set_attributes()
106 			inode->i_flags &= ~S_IMMUTABLE;  in fat_ioctl_set_attributes()
109 	fat_save_attrs(inode, attr);  in fat_ioctl_set_attributes()
110 	mark_inode_dirty(inode);  in fat_ioctl_set_attributes()
112 	inode_unlock(inode);  in fat_ioctl_set_attributes()
118 static int fat_ioctl_get_volume_id(struct inode *inode, u32 __user *user_attr)  in fat_ioctl_get_volume_id()  argument
120 	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);  in fat_ioctl_get_volume_id()
124 static int fat_ioctl_fitrim(struct inode *inode, unsigned long arg)  in fat_ioctl_fitrim()  argument
126 	struct super_block *sb = inode->i_sb;  in fat_ioctl_fitrim()
145 	err = fat_trim_fs(inode, &range);  in fat_ioctl_fitrim()
157 	struct inode *inode = file_inode(filp);  in fat_generic_ioctl()  local
162 		return fat_ioctl_get_attributes(inode, user_attr);  in fat_generic_ioctl()
166 		return fat_ioctl_get_volume_id(inode, user_attr);  in fat_generic_ioctl()
168 		return fat_ioctl_fitrim(inode, arg);  in fat_generic_ioctl()
183 static int fat_file_release(struct inode *inode, struct file *filp)  in fat_file_release()  argument
186 	     MSDOS_SB(inode->i_sb)->options.flush) {  in fat_file_release()
187 		fat_flush_inodes(inode->i_sb, inode, NULL);  in fat_file_release()
195 	struct inode *inode = filp->f_mapping->host;  in fat_file_fsync()  local
199 	err = sync_mapping_buffers(MSDOS_SB(inode->i_sb)->fat_inode->i_mapping);  in fat_file_fsync()
220 static int fat_cont_expand(struct inode *inode, loff_t size)  in fat_cont_expand()  argument
222 	struct address_space *mapping = inode->i_mapping;  in fat_cont_expand()
223 	loff_t start = inode->i_size, count = size - inode->i_size;  in fat_cont_expand()
226 	err = generic_cont_expand_simple(inode, size);  in fat_cont_expand()
230 	inode->i_ctime = inode->i_mtime = current_time(inode);  in fat_cont_expand()
231 	mark_inode_dirty(inode);  in fat_cont_expand()
232 	if (IS_SYNC(inode)) {  in fat_cont_expand()
244 		err2 = write_inode_now(inode, 1);  in fat_cont_expand()
269 	struct inode *inode = file->f_mapping->host;  in fat_fallocate()  local
270 	struct super_block *sb = inode->i_sb;  in fat_fallocate()
279 	if (!S_ISREG(inode->i_mode))  in fat_fallocate()
282 	inode_lock(inode);  in fat_fallocate()
284 		ondisksize = inode->i_blocks << 9;  in fat_fallocate()
295 			err = fat_add_cluster(inode);  in fat_fallocate()
300 		if ((offset + len) <= i_size_read(inode))  in fat_fallocate()
304 		err = fat_cont_expand(inode, (offset + len));  in fat_fallocate()
308 	inode_unlock(inode);  in fat_fallocate()
313 static int fat_free(struct inode *inode, int skip)  in fat_free()  argument
315 	struct super_block *sb = inode->i_sb;  in fat_free()
318 	if (MSDOS_I(inode)->i_start == 0)  in fat_free()
321 	fat_cache_inval_inode(inode);  in fat_free()
323 	wait = IS_DIRSYNC(inode);  in fat_free()
324 	i_start = free_start = MSDOS_I(inode)->i_start;  in fat_free()
325 	i_logstart = MSDOS_I(inode)->i_logstart;  in fat_free()
329 		MSDOS_I(inode)->i_start = 0;  in fat_free()
330 		MSDOS_I(inode)->i_logstart = 0;  in fat_free()
332 	MSDOS_I(inode)->i_attrs |= ATTR_ARCH;  in fat_free()
333 	inode->i_ctime = inode->i_mtime = current_time(inode);  in fat_free()
335 		err = fat_sync_inode(inode);  in fat_free()
337 			MSDOS_I(inode)->i_start = i_start;  in fat_free()
338 			MSDOS_I(inode)->i_logstart = i_logstart;  in fat_free()
342 		mark_inode_dirty(inode);  in fat_free()
349 		ret = fat_get_cluster(inode, skip - 1, &fclus, &dclus);  in fat_free()
356 		ret = fat_ent_read(inode, &fatent, dclus);  in fat_free()
363 				     __func__, MSDOS_I(inode)->i_pos);  in fat_free()
366 			err = fat_ent_write(inode, &fatent, FAT_ENT_EOF, wait);  in fat_free()
376 	inode->i_blocks = skip << (MSDOS_SB(sb)->cluster_bits - 9);  in fat_free()
379 	return fat_free_clusters(inode, free_start);  in fat_free()
382 void fat_truncate_blocks(struct inode *inode, loff_t offset)  in fat_truncate_blocks()  argument
384 	struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb);  in fat_truncate_blocks()
392 	if (MSDOS_I(inode)->mmu_private > offset)  in fat_truncate_blocks()
393 		MSDOS_I(inode)->mmu_private = offset;  in fat_truncate_blocks()
397 	fat_free(inode, nr_clusters);  in fat_truncate_blocks()
398 	fat_flush_inodes(inode->i_sb, inode, NULL);  in fat_truncate_blocks()
404 	struct inode *inode = d_inode(path->dentry);  in fat_getattr()  local
405 	generic_fillattr(inode, stat);  in fat_getattr()
406 	stat->blksize = MSDOS_SB(inode->i_sb)->cluster_size;  in fat_getattr()
408 	if (MSDOS_SB(inode->i_sb)->options.nfs == FAT_NFS_NOSTALE_RO) {  in fat_getattr()
410 		stat->ino = fat_i_pos_read(MSDOS_SB(inode->i_sb), inode);  in fat_getattr()
417 			     struct inode *inode, umode_t *mode_ptr)  in fat_sanitize_mode()  argument
426 	if (S_ISREG(inode->i_mode))  in fat_sanitize_mode()
439 	if ((perm & (S_IRUGO | S_IXUGO)) != (inode->i_mode & (S_IRUGO|S_IXUGO)))  in fat_sanitize_mode()
441 	if (fat_mode_can_hold_ro(inode)) {  in fat_sanitize_mode()
454 static int fat_allow_set_time(struct msdos_sb_info *sbi, struct inode *inode)  in fat_allow_set_time()  argument
458 	if (!uid_eq(current_fsuid(), inode->i_uid)) {  in fat_allow_set_time()
459 		if (in_group_p(inode->i_gid))  in fat_allow_set_time()
476 	struct inode *inode = d_inode(dentry);  in fat_setattr()  local
483 		if (fat_allow_set_time(sbi, inode))  in fat_setattr()
502 		inode_dio_wait(inode);  in fat_setattr()
504 		if (attr->ia_size > inode->i_size) {  in fat_setattr()
505 			error = fat_cont_expand(inode, attr->ia_size);  in fat_setattr()
531 		if (fat_sanitize_mode(sbi, inode, &attr->ia_mode) < 0)  in fat_setattr()
536 		error = fat_block_truncate_page(inode, attr->ia_size);  in fat_setattr()
539 		down_write(&MSDOS_I(inode)->truncate_lock);  in fat_setattr()
540 		truncate_setsize(inode, attr->ia_size);  in fat_setattr()
541 		fat_truncate_blocks(inode, attr->ia_size);  in fat_setattr()
542 		up_write(&MSDOS_I(inode)->truncate_lock);  in fat_setattr()
545 	setattr_copy(inode, attr);  in fat_setattr()
546 	mark_inode_dirty(inode);  in fat_setattr()