12 static int migrate_block(struct f2fs_sb_info *sbi, u64 from, u64 to)  in migrate_block()  argument
31 	se = get_seg_entry(sbi, GET_SEGNO(sbi, from));  in migrate_block()
32 	offset = OFFSET_IN_SEG(sbi, from);  in migrate_block()
38 	se = get_seg_entry(sbi, GET_SEGNO(sbi, to));  in migrate_block()
39 	offset = OFFSET_IN_SEG(sbi, to);  in migrate_block()
46 	get_sum_entry(sbi, from, &sum);  in migrate_block()
47 	update_sum_entry(sbi, to, &sum);  in migrate_block()
51 		update_data_blkaddr(sbi, le32_to_cpu(sum.nid),  in migrate_block()
54 		update_nat_blkaddr(sbi, 0, le32_to_cpu(sum.nid), to);  in migrate_block()
63 int f2fs_defragment(struct f2fs_sb_info *sbi, u64 from, u64 len, u64 to, int left)  in f2fs_defragment()  argument
69 	flush_journal_entries(sbi);  in f2fs_defragment()
74 		se = get_seg_entry(sbi, GET_SEGNO(sbi, idx));  in f2fs_defragment()
75 		offset = OFFSET_IN_SEG(sbi, idx);  in f2fs_defragment()
80 		if (find_next_free_block(sbi, &target, left, se->type)) {  in f2fs_defragment()
85 		if (migrate_block(sbi, idx, target)) {  in f2fs_defragment()
92 	move_curseg_info(sbi, to);  in f2fs_defragment()
93 	zero_journal_entries(sbi);  in f2fs_defragment()
94 	write_curseg_info(sbi);  in f2fs_defragment()
97 	flush_sit_entries(sbi);  in f2fs_defragment()
99 	write_checkpoint(sbi);  in f2fs_defragment()