Re: [PATCH] alloc_memory_early() routines

[Andi Kleen <ak@suse.de>]

Pekka J Enberg <penberg@cs.Helsinki.FI> writes:

> On Wed, 10 May 2006, Pekka Enberg wrote:
> > > > +void * __init alloc_memory_early_node(size_t size, gfp_t flags, int node)
> > > > +{
> > > > +       if (g_cpucache_up == FULL)
> > > > +               return kmalloc_node(size, flags, node);
> > > > +       else
> > > > +               return alloc_bootmem_node(NODE_DATA(node), size);
> > > > +}
> > > 
> > > I'd prefer you put this in mm/bootmem.c and added a
> > > 
> > > int slab_is_available(void)
> > > {
> > >       return g_cpucache_up == FULL;
> > > }
> > > 
> > > to mm/slab.c instead.
> 
> On Wed, 10 May 2006, Christoph Lameter wrote:
> > Does slab not available mean that bootmem can be used? 
> 
> Yes.


Actually it doesn't - in early boot up there is a phase where even bootmem
doesn't work yet.

-Andi