> On Thu, Jul 10, 2003 at 01:42:00PM +0100, Alan Cox wrote:
> > On Iau, 2003-07-10 at 13:13, Marcelo Tosatti wrote:
> > > So Christoph's quota patch does not support vendors "v1" files?
> > >
> > > I must be misunderstanding someone.
> >
> > There are three species of quota in Linux
> >
> > v0 (official old Linux)
> > v1 (most 2.4 vendor trees)
> > v2 (the 2.5 format)
>
> Umm, no. You misunderstood.
>
> There's two quota _ondisk_ formats:
>
> v1 old 16bit quota.
> v2 new 32bit quota.
>
> 2.4 previously only supported v1, 2.5 and 2.4.22-pre4 also support v2.
Exactly.
> There's three sys_quotactl ABIs
>
> 1) original 16 bit one, supported by all kernels <= 2.4
> 2) first 32bit one, supported by 2.4-ac any many vendor trees, but never
> in mainline
Actually at least later SuSE kernels and -ac kernels support 3)...
> 3) new 32bit one, supported by 2.4.x (x >= 22-pre4) and 2.5
Right.
> Unfortunately the second one uses the same constants as the old 16bit one
> but different structures so there is no way to support both in a single
> kernel.
Honza
-- Jan Kara <jack@suse.cz> SuSE CR Labs - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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