The raw_node will take 1 blk itself, and its next blk addr should be +1.

Signed-off-by: Wang Sheng-Hui <[email protected]>
---
  mkfs/f2fs_format.c |    2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mkfs/f2fs_format.c b/mkfs/f2fs_format.c
index 06771ff..f00ba04 100644
--- a/mkfs/f2fs_format.c
+++ b/mkfs/f2fs_format.c
@@ -744,7 +744,7 @@ static int f2fs_write_root_inode(void)
        raw_node->footer.next_blkaddr = cpu_to_le32(
                        le32_to_cpu(super_block.main_blkaddr) +
                        config.cur_seg[CURSEG_HOT_NODE] *
-                       config.blks_per_seg + 1);
+                       config.blks_per_seg) + cpu_to_le32(1);

        raw_node->i.i_mode = cpu_to_le16(0x41ed);
        raw_node->i.i_links = cpu_to_le32(2);
-- 
1.7.10.4

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