Tried with various mount options (sync, async) Looked into source code. It seems like it will never be sent, client always assumes server can do FILE_SYNC, and server cannot respond with anything else, if implemented correctly. But what we can do if the server is inherently unable to do FILE_SYNC (eventual consistency, write reorder, etc.)? -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html