diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index d317b61..4588545 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -437,8 +437,10 @@
 
 static inline bool need_SSR(struct f2fs_sb_info *sbi)
 {
-	return (prefree_segments(sbi) / sbi->segs_per_sec)
-			+ free_sections(sbi) < overprovision_sections(sbi);
+	int node_secs = get_blocktype_secs(sbi, F2FS_DIRTY_NODES);
+	int dent_secs = get_blocktype_secs(sbi, F2FS_DIRTY_DENTS);
+	return free_sections(sbi) <= (node_secs + 2 * dent_secs +
+						reserved_sections(sbi) + 1);
 }
 
 static inline bool has_not_enough_free_secs(struct f2fs_sb_info *sbi, int freed)