diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 7e6977173d28..65f21b9aab79 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -69,6 +69,8 @@ extern const char *f2fs_fault_name[FAULT_MAX];
 #define IS_FAULT_SET(fi, type) ((fi)->inject_type & (1 << (type)))
 #endif
 
+#define MIN_ROOT_RESERVED_BLOCKS (128 * 1024 * 1024)
+
 /*
  * For mount options
  */
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index c2ba4a087983..ed5e28f46ae8 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -280,7 +280,8 @@ static inline void limit_reserve_root(struct f2fs_sb_info *sbi)
 
 	/* limit is 0.2% */
 	if (test_opt(sbi, RESERVE_ROOT) &&
-			F2FS_OPTION(sbi).root_reserved_blocks > limit) {
+			F2FS_OPTION(sbi).root_reserved_blocks > limit &&
+			F2FS_OPTION(sbi).root_reserved_blocks > MIN_ROOT_RESERVED_BLOCKS) {
 		F2FS_OPTION(sbi).root_reserved_blocks = limit;
 		f2fs_info(sbi, "Reduce reserved blocks for root = %u",
 			  F2FS_OPTION(sbi).root_reserved_blocks);