diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 4906417ea61a..64bdf7b45e4b 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1686,7 +1686,11 @@ static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
 {
 	unsigned long flags;
 
-	set_sbi_flag(sbi, SBI_NEED_FSCK);
+	/*
+	 * In order to re-enable nat_bits we need to call fsck.f2fs by
+	 * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost,
+	 * so let's rely on regular fsck or unclean shutdown.
+	 */
 
 	if (lock)
 		spin_lock_irqsave(&sbi->cp_lock, flags);