Return Status from File.GetAttr too.

fuse/default.go

@@ -152,8 +152,8 @@ func (me *DefaultFile) Release() {
 
 }
 
-func (me *DefaultFile) GetAttr() *Attr {
-	return nil
+func (me *DefaultFile) GetAttr() (*Attr, Status) {
+	return nil, ENOSYS
 }
 
 func (me *DefaultFile) Fsync(*FsyncIn) (code Status) {

fuse/fsetattr_test.go

@@ -46,9 +46,9 @@ func (me *MutableDataFile) getAttr() *Attr {
 	return a
 }
 
-func (me *MutableDataFile) GetAttr() *Attr {
+func (me *MutableDataFile) GetAttr() (*Attr, Status) {
 	me.GetAttrCalled = true
-	return me.getAttr()
+	return me.getAttr(), OK
 }
 
 func (me *MutableDataFile) Fsync(*FsyncIn) (code Status) {

fuse/loopback.go

@@ -208,12 +208,12 @@ func (me *LoopbackFile) Chown(uid uint32, gid uint32) Status {
 	return OsErrorToErrno(me.file.Chown(int(uid), int(gid)))
 }
 
-func (me *LoopbackFile) GetAttr() *Attr {
+func (me *LoopbackFile) GetAttr() (*Attr, Status) {
 	fi, err := me.file.Stat()
 	if err != nil {
-		return nil
+		return nil, OsErrorToErrno(err)
 	}
 	a := &Attr{}
 	CopyFileInfo(fi, a)
-	return a
+	return a, OK
 }

fuse/pathops.go

@@ -76,9 +76,12 @@ func (me *FileSystemConnector) Forget(h *InHeader, input *ForgetIn) {
 func (me *FileSystemConnector) GetAttr(header *InHeader, input *GetAttrIn) (out *AttrOut, code Status) {
 	if input.Flags&FUSE_GETATTR_FH != 0 {
 		f, mount := me.getFile(input.Fh)
-		attr := f.GetAttr()
+		attr, err := f.GetAttr()
+		if err != OK && err != ENOSYS {
+			return nil, err
+		}
+		
 		if attr != nil {
-
 			out = &AttrOut{
 				Attr: *attr,
 			}

fuse/types.go

@@ -522,11 +522,12 @@ type File interface {
 	Release()
 	Fsync(*FsyncIn) (code Status)
 
-	GetAttr() *Attr
-	Utimens(atimeNs uint64, mtimeNs uint64) Status
-	Truncate(size uint64) Status
+	GetAttr() (*Attr, Status)
+
 	Chown(uid uint32, gid uint32) Status
 	Chmod(perms uint32) Status
+	Utimens(atimeNs uint64, mtimeNs uint64) Status
+	Truncate(size uint64) Status
 }
 
 type RawDir interface {