From 88fbe968a6ae000aabd287a6abb33859148b3c52 Mon Sep 17 00:00:00 2001
From: GoEdgeLab <goedgecloud@gmail.com>
Date: Thu, 16 Mar 2023 08:59:35 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E5=AD=98=E5=82=A8=E7=A9=BA?=
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---
 internal/caches/manager.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/internal/caches/manager.go b/internal/caches/manager.go
index 60c0a9a..34d15c7 100644
--- a/internal/caches/manager.go
+++ b/internal/caches/manager.go
@@ -177,10 +177,15 @@ func (this *Manager) TotalDiskSize() int64 {
 	this.locker.RLock()
 	defer this.locker.RUnlock()
 
-	total := int64(0)
+	var total = int64(0)
 	for _, storage := range this.storageMap {
 		total += storage.TotalDiskSize()
 	}
+
+	if total < 0 {
+		total = 0
+	}
+
 	return total
 }