mount: improve NFS directory listing (#7696)

mount: remove unused isEarlyTerminated variable

The variable was redundant because when processEachEntryFn returns false,
we immediately return fuse.OK, so the check was always false.

weed/mount/weedfs_dir_read.go

@@ -159,7 +159,6 @@ func (wfs *WFS) doReadDirectory(input *fuse.ReadIn, out *fuse.DirEntryList, isPl
 		}
 	}
 
-	isEarlyTerminated := false
 	dirPath, code := wfs.inodeToPath.GetPath(input.NodeId)
 	if code != fuse.OK {
 		return code
@@ -179,13 +178,11 @@ func (wfs *WFS) doReadDirectory(input *fuse.ReadIn, out *fuse.DirEntryList, isPl
 
 		if !isPlusMode {
 			if !out.AddDirEntry(dirEntry) {
-				isEarlyTerminated = true
 				return false
 			}
 		} else {
 			entryOut := out.AddDirLookupEntry(dirEntry)
 			if entryOut == nil {
-				isEarlyTerminated = true
 				return false
 			}
 			if fh, found := wfs.fhMap.FindFileHandle(inode); found {
@@ -257,7 +254,6 @@ func (wfs *WFS) doReadDirectory(input *fuse.ReadIn, out *fuse.DirEntryList, isPl
 		}
 
 		// Cache exhausted, load next batch
-		if !isEarlyTerminated {
 		if err := meta_cache.EnsureVisited(wfs.metaCache, wfs, dirPath); err != nil {
 			glog.Errorf("dir ReadDirAll %s: %v", dirPath, err)
 			return fuse.EIO
@@ -287,7 +283,6 @@ func (wfs *WFS) doReadDirectory(input *fuse.ReadIn, out *fuse.DirEntryList, isPl
 			dh.isFinished = true
 		}
 	}
-	}
 
 	return fuse.OK
 }