On Tue, 2012-05-22 at 23:12 -0400, Kent Overstreet wrote:
> On Tue, May 22, 2012 at 02:17:06PM -0700, Tejun Heo wrote:
[]
> > > +ssize_t hprint(char *buf, int64_t v)
> > > +{
> > > + static const char units[] = "?kMGTPEZY";
> > > + char dec[3] = "";
> > > + int u, t = 0;
> > > +
> > > + for (u = 0; v >= 1024 || v <= -1024; u++) {
> > > + t = v & ~(~0 << 10);
> > > + v >>= 10;
> > > + }
> > > +
> > > + if (!u)
> > > + return sprintf(buf, "%llu", v);
> > > +
> > > + if (v < 100 && v > -100)
> > > + sprintf(dec, ".%i", t / 100);
> > > +
> > > + return sprintf(buf, "%lli%s%c", v, dec, units[u]);
> > > +}
> > > +EXPORT_SYMBOL_GPL(hprint);
> >
> > Not your fault but maybe we want integer vsnprintf modifier for this.
>
> Yes.
or maybe yet another lib/vsprintf pointer extension
like %pD with some descriptors after the %pD for
type, width and precision.
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