Il 12/06/2012 16:37, Kevin Wolf ha scritto:
>> > align_offset(m->nb_available+1, s->cluster_sectors)
> Heh, yes, you're thinking about equivalence of the very formula (which
> is what I would do in unknown code as well), whereas I think about a COW
> operation that ranges from a given sector to the end of the same cluster
> (and not the next one).
>
> It's eventually the same, because this statement is only executed when
> it's not aligned (i.e. the COW range isn't empty):
>
> if (m->nb_available & (s->cluster_sectors - 1)) {
> ...
> }
Indeed, your version is ok.
Paolo
