New extended attribute "rozofs_maxsize"
A new extended attribute rozofs_maxsize is used to return the maximum
size that the file could reach given the left space on the storages
of its distribution.
i.e:
attr -g rozofs_maxsize big
L'attribut « rozofs_maxsize » avait une valeur de 34 octets pour big :
Remaining available space 40 GiB.