Setxattr: get the correct structure based on whether SETXATTR_EXT is set in the negotiated FSOptions flags
Store enabled FSOptions as Server field and get the correct structure based on whether SETXATTR_EXT is set in the negotiated FSOptions flags.
Also, pass the 'SetxattrIn::setxattr_flags' as extra flags to 'FileSystem::setxattr', currently this argument is ignored, but will be required to implement posix_acls and selinux support.
Edited by German Maglione