From b81956bcb573166a505d87c2f085e298639fe227 Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Wed, 27 Jan 2021 10:28:37 -0800
Subject: [PATCH] mount: invalidate kernel cache when mounted to a filer path

fix https://github.com/chrislusf/seaweedfs/issues/1752#issuecomment-768178422
---
 weed/filesys/meta_cache/meta_cache.go | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/weed/filesys/meta_cache/meta_cache.go b/weed/filesys/meta_cache/meta_cache.go
index f4e4d7d6e..b9d4724c9 100644
--- a/weed/filesys/meta_cache/meta_cache.go
+++ b/weed/filesys/meta_cache/meta_cache.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"strings"
 	"sync"
 
 	"github.com/chrislusf/seaweedfs/weed/filer"
@@ -29,7 +30,12 @@ func NewMetaCache(dbFolder string, baseDir util.FullPath, uidGidMapper *UidGidMa
 		localStore:      openMetaStore(dbFolder),
 		visitedBoundary: bounded_tree.NewBoundedTree(baseDir),
 		uidGidMapper:    uidGidMapper,
-		invalidateFunc:  invalidateFunc,
+		invalidateFunc: func(fullpath util.FullPath) {
+			if baseDir != "/" && strings.HasPrefix(string(fullpath), string(baseDir)) {
+				fullpath = fullpath[len(baseDir):]
+			}
+			invalidateFunc(fullpath)
+		},
 	}
 }