Re: [RFC 1/7] Remove declaration of sighand_cachep from slab.h

From: Andrew Morton
Date: Tue Nov 21 2006 - 03:08:46 EST


On Mon, 20 Nov 2006 08:20:13 -0800 (PST)
Christoph Lameter <clameter@xxxxxxx> wrote:

> On Sat, 18 Nov 2006, Stephen Rothwell wrote:
>
> > Is there no suitable header file to put this in?
>
> There is only a single file that uses sighand_cachep apart from where it
> was defined. If we would add it to signal.h then we would also have to
> add an include for slab.h just for this statement.

That's one of the reasons why typedefs are bad.

Use `struct kmem_cache' instead of `kmem_cache_t' and lo, you can
forward-declare it in the header file without having to include slab.h.

Patches which rid us of kmem_cache_t are always welcome..
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