f2fs: fix to use correct segment type in f2fs_allocate_data_block()

@type in f2fs_allocate_data_block() indicates log header's type, it
can be CURSEG_COLD_DATA_PINNED or CURSEG_ALL_DATA_ATGC, rather than
type of data/node, however IS_DATASEG()/IS_NODESEG() only accept later
one, fix it.

Fixes: 093749e2 ("f2fs: support age threshold based garbage collection")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/segment.c

@@ -3540,12 +3540,12 @@ int f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
 	locate_dirty_segment(sbi, GET_SEGNO(sbi, old_blkaddr));
 	locate_dirty_segment(sbi, GET_SEGNO(sbi, *new_blkaddr));
 
-	if (IS_DATASEG(type))
+	if (IS_DATASEG(curseg->seg_type))
 		atomic64_inc(&sbi->allocated_data_blocks);
 
 	up_write(&sit_i->sentry_lock);
 
-	if (page && IS_NODESEG(type)) {
+	if (page && IS_NODESEG(curseg->seg_type)) {
 		fill_node_footer_blkaddr(page, NEXT_FREE_BLKADDR(sbi, curseg));
 
 		f2fs_inode_chksum_set(sbi, page);