fs/exfat/inode.c

27 	struct exfat_inode_info *ei = EXFAT_I(inode);
28 	bool is_dir = (ei->type == TYPE_DIR) ? true : false;
37 	if (ei->dir.dir == DIR_DELETED)
40 	if (is_dir && ei->dir.dir == sbi->root_dir && ei->entry == -1)
46 	if (exfat_get_dentry_set(&es, sb, &(ei->dir), ei->entry, ES_ALL_ENTRIES))
54 	exfat_set_entry_time(sbi, &ei->i_crtime,
75 	if (ei->start_clu == EXFAT_EOF_CLUSTER)
84 	if (on_disk_size < ei->valid_size)
87 		ep2->dentry.stream.valid_size = cpu_to_le64(ei->valid_size);
90 		ep2->dentry.stream.flags = ei->flags;
91 		ep2->dentry.stream.start_clu = cpu_to_le32(ei->start_clu);
131 	struct exfat_inode_info *ei = EXFAT_I(inode);
135 	if (ei->i_size_ondisk > 0)
137 			EXFAT_B_TO_CLU_ROUND_UP(ei->i_size_ondisk, sbi);
147 	*clu = last_clu = ei->start_clu;
149 	if (ei->flags == ALLOC_NO_FAT_CHAIN) {
158 	} else if (ei->type == TYPE_FILE) {
168 		if (clu_offset > 0 && ei->hint_bmap.off != EXFAT_EOF_CLUSTER &&
169 		    ei->hint_bmap.off > 0 && clu_offset >= ei->hint_bmap.off) {
170 			clu_offset -= ei->hint_bmap.off;
172 			WARN_ON(ei->hint_bmap.clu < 2);
173 			*clu = ei->hint_bmap.clu;
190 		new_clu.flags = ei->flags;
215 				ei->flags = ALLOC_FAT_CHAIN;
216 			ei->start_clu = new_clu.dir;
218 			if (new_clu.flags != ei->flags) {
223 				exfat_chain_cont_cluster(sb, ei->start_clu,
225 				ei->flags = ALLOC_FAT_CHAIN;
244 		if (ei->flags == ALLOC_NO_FAT_CHAIN) {
257 	ei->hint_bmap.off = local_clu_offset;
258 	ei->hint_bmap.clu = *clu;
263 static int exfat_map_new_buffer(struct exfat_inode_info *ei,
266 	if (buffer_delay(bh) && pos > ei->i_size_aligned)
273 	if (ei->i_size_ondisk > ei->i_size_aligned)
274 		ei->i_size_aligned = ei->i_size_ondisk;
281 	struct exfat_inode_info *ei = EXFAT_I(inode);
321 		if (ei->i_size_ondisk < pos)
322 			ei->i_size_ondisk = pos;
330 		valid_blks = EXFAT_B_TO_BLK_ROUND_UP(ei->valid_size, sb);
345 		err = exfat_map_new_buffer(ei, bh_result, pos);
349 					pos, ei->i_size_aligned);
353 		ei->valid_size = EXFAT_BLK_TO_B(iblock + max_blocks, sb);
356 		valid_blks = EXFAT_B_TO_BLK(ei->valid_size, sb);
369 			   (ei->valid_size & (sb->s_blocksize - 1))) {
386 			size = ei->valid_size - pos;
420 	struct exfat_inode_info *ei = EXFAT_I(inode);
424 	if (ei->valid_size < i_size_read(inode) &&
425 	    pos <= ei->valid_size &&
426 	    ei->valid_size < pos + readahead_length(rac))
469 	struct exfat_inode_info *ei = EXFAT_I(inode);
474 	if (ei->i_size_aligned < i_size_read(inode)) {
477 			i_size_read(inode), ei->i_size_aligned);
484 	if (!(err < 0) && pos + err > ei->valid_size) {
485 		ei->valid_size = pos + err;
489 	if (!(err < 0) && !(ei->attr & EXFAT_ATTR_ARCHIVE)) {
491 		ei->attr |= EXFAT_ATTR_ARCHIVE;
502 	struct exfat_inode_info *ei = EXFAT_I(inode);
536 	if (rw == READ && pos < ei->valid_size && ei->valid_size < size) {
537 		iov_iter_revert(iter, size - ei->valid_size);
538 		iov_iter_zero(size - ei->valid_size, iter);
631 	struct exfat_inode_info *ei = EXFAT_I(inode);
634 	ei->dir = info->dir;
635 	ei->entry = info->entry;
636 	ei->attr = info->attr;
637 	ei->start_clu = info->start_clu;
638 	ei->flags = info->flags;
639 	ei->type = info->type;
640 	ei->valid_size = info->valid_size;
642 	ei->version = 0;
643 	ei->hint_stat.eidx = 0;
644 	ei->hint_stat.clu = info->start_clu;
645 	ei->hint_femp.eidx = EXFAT_HINT_NONE;
646 	ei->hint_bmap.off = EXFAT_EOF_CLUSTER;
647 	ei->i_pos = 0;
677 	ei->i_size_aligned = size;
678 	ei->i_size_ondisk = size;
685 	ei->i_crtime = info->crtime;