[Patch 04/18] include/linux/logfs.h

[Jörn Engel]

On Sun, 3 June 2007 23:42:25 +0200, Arnd Bergmann wrote:
> On Sunday 03 June 2007, Jörn Engel wrote:
> > +struct logfs_je_spillout {
> > +       __be64  so_segment[0];
> > +}__packed;
> 
> All the on-disk data structures you define in this file have naturally
> aligned members, so the __packed attribute is not needed.

Amen.  It is purely paranoia and I don't even know who is out to get me.

> However, I think it causes gcc to generate larger and slower code
> on some architectures, because now it has to assume that the data
> structure itself has no more than byte alignment.
> 
> I'd simply remove all instances of __packed therefore. In order
> to verify that you got it right in all cases, build with
> '-Wpadded -Wpacked'.

Fine with me.  Will do.

Jörn

-- 
Ninety percent of everything is crap.
-- Sturgeon's Law