Re: [PATCH] fix dir2 shortform structures on ARM old ABI

[Timothy Shimmin <tes@xxxxxxx>]

Eric Sandeen wrote:
> Josef 'Jeff' Sipek wrote:
>
> > Josef 'Jeff' Sipek, wondering exactly how passionate one can get about
> > structure member alignment :)
>
> Very.  ;)
>
> Tossing packed at all the ondisk stuctures bloats things badly on ia64.
>
> cvs/linux-2.6-xfs> wc -l before.dis
> 166688 before.dis
> cvs/linux-2.6-xfs> wc -l after.dis
> 182294 after.dis
>
> That's +15606 lines.
>
> http://digitalvampire.org/blog/index.php/2006/07/31/why-you-shouldnt-use-__attribute__packed/
Interesting.
So the problem there is that gcc is doing the wrong thing
on some arches (the example being ia64, sparc64).

--Tim