add a bunch of methods to the client end

vendor/github.com/hanwen/go-fuse/fuse/poll.go

@@ -0,0 +1,34 @@
+package fuse
+
+// Go 1.9 introduces polling for file I/O. The implementation causes
+// the runtime's epoll to take up the last GOMAXPROCS slot, and if
+// that happens, we won't have any threads left to service FUSE's
+// _OP_POLL request. Prevent this by forcing _OP_POLL to happen, so we
+// can say ENOSYS and prevent further _OP_POLL requests.
+const pollHackName = ".go-fuse-epoll-hack"
+const pollHackInode = ^uint64(0)
+
+func doPollHackLookup(ms *Server, req *request) {
+	switch req.inHeader.Opcode {
+	case _OP_CREATE:
+		out := (*CreateOut)(req.outData())
+		out.EntryOut = EntryOut{
+			NodeId: pollHackInode,
+			Attr: Attr{
+				Ino:   pollHackInode,
+				Mode:  S_IFREG | 0644,
+				Nlink: 1,
+			},
+		}
+		out.OpenOut = OpenOut{
+			Fh: pollHackInode,
+		}
+		req.status = OK
+	case _OP_LOOKUP:
+		out := (*EntryOut)(req.outData())
+		*out = EntryOut{}
+		req.status = ENOENT
+	default:
+		req.status = EIO
+	}
+}