Re: 64-bit block sizes on 32-bit systems

Eric W. Biederman
2001-03-26T18:40:23Z

Matthew Wilcox <matthew@wil.cx> writes:

> On Mon, Mar 26, 2001 at 10:47:13AM -0700, Andreas Dilger wrote:
> > What do you mean by problems 5 years down the road? The real issue is that
> > this 32-bit block count limit affects composite devices like MD RAID and
> > LVM today, not just individual disks. There have been several postings
> > I have seen with people having a problem _today_ with a 2TB limit on
> > devices.
>
> people who can afford 2TB of disc can afford to buy a 64-bit processor.

Currently that doesn't solve the problem as block_nr is held in an int.
And as gcc compiles an int to a 32bit number on a 64bit processor, the
problem still isn't solved.

That at least we need to address.

Eric