mount: fix problems found in issue 1182

fix https://github.com/chrislusf/seaweedfs/issues/1182

always use the non-duplicated fs.Node
Forget() the fs.Node
Rename will also use the right fs.Node
Avoid using the same file handle for the same file

1 files changed, 10 insertions, 1 deletions

diff --git a/weed/filesys/file.go b/weed/filesys/file.go
index 622ba6f57..d811cb179 100644
--- a/weed/filesys/file.go
+++ b/weed/filesys/file.go
@@ -23,6 +23,7 @@ var _ = fs.NodeGetxattrer(&File{})
 var _ = fs.NodeSetxattrer(&File{})
 var _ = fs.NodeRemovexattrer(&File{})
 var _ = fs.NodeListxattrer(&File{})
+var _ = fs.NodeForgetter(&File{})
 
 type File struct {
 	Name           string
@@ -94,11 +95,12 @@ func (file *File) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.Op
 
 func (file *File) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *fuse.SetattrResponse) error {
 
+	glog.V(3).Infof("%v file setattr %+v, old:%+v", file.fullpath(), req, file.entry.Attributes)
+
 	if err := file.maybeLoadEntry(ctx); err != nil {
 		return err
 	}
 
-	glog.V(3).Infof("%v file setattr %+v, old:%+v", file.fullpath(), req, file.entry.Attributes)
 	if req.Valid.Size() {
 
 		glog.V(3).Infof("%v file setattr set size=%v", file.fullpath(), req.Size)
@@ -208,6 +210,13 @@ func (file *File) Fsync(ctx context.Context, req *fuse.FsyncRequest) error {
 	return nil
 }
 
+func (file *File) Forget() {
+	glog.V(3).Infof("Forget file %s/%s", file.dir.Path, file.Name)
+
+	file.wfs.forgetNode(filer2.NewFullPath(file.dir.Path, file.Name))
+
+}
+
 func (file *File) maybeLoadEntry(ctx context.Context) error {
 	if file.entry == nil || !file.isOpen {
 		entry, err := file.wfs.maybeLoadEntry(ctx, file.dir.Path, file.Name)