Re: How to extend struct stat?

Matti Aarnio (matti.aarnio@sonera.fi)
Sat, 16 Oct 1999 13:27:17 +0300

On Fri, Oct 15, 1999 at 08:05:10AM -0700, Ulrich Drepper wrote:
> Jamie Lokier <lkd@tantalophile.demon.co.uk> writes:
> > Perhaps this is a bug in Glibc, I don't know. If so, they should change
> > __ino64_t and do the appropriate hacks for binary compatibility with old
> > stuff.
>
> I have asked around in the kernel hacking circles when I had to choose
> the values and got told that 32 bits are enough for ino64_t. So live
> with it.

That is your collected opinnion/wisdom for the user-space.

Let kernel, and kernel/user interface (for LFS/64 syscalls)
handle it as 64-bit entity, and you need to write new wrapper-
interfaces for them too..
Thwn when there really comes some case where 64-bit entity is
needed for USERSPACE, we cross that bridge and change glibc's
external 'struct stat64' and other places where __ino64_t needs
to be 64-bit.

However because for kernel/user interface doing changes is
painfull, all such changes must be done once, and all the way.

> --
> ---------------. drepper at gnu.org ,-. 1325 Chesapeake Terrace
> Ulrich Drepper \ ,-------------------' \ Sunnyvale, CA 94089 USA
> Cygnus Solutions `--' drepper at cygnus.com `------------------------

/Matti Aarnio <matti.aarnio@sonera.fi>

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