Re: [PATCH] nommu: fix kobjsize() for SLOB and SLUB

Christoph Lameter
2008-05-29T21:29:43Z

On Thu, 29 May 2008, Mike Frysinger wrote:

> > You should not have to do this. This is the default alignment that also
> > SLOB needs to follow. We need to align structures correctly for access to
> > long long's.
>
> are you saying that slob is broken ? i see in mm/slob.c:
> #ifndef ARCH_KMALLOC_MINALIGN
> #define ARCH_KMALLOC_MINALIGN __alignof__(unsigned long)
> #endif
> -mike

It should be long long instead.

SLUB:

#ifndef ARCH_KMALLOC_MINALIGN
#define ARCH_KMALLOC_MINALIGN __alignof__(unsigned long long)
#endif

SLAB:

#define ARCH_KMALLOC_MINALIGN __alignof__(unsigned long long)