Re: [PATCH RFC v2] slab: introduce kmalloc_array

[Andrew Morton <akpm@linux-foundation.org>]

On Thu, 9 Feb 2012 23:47:42 +0100 (CET)
Jesper Juhl <jj@chaosbits.net> wrote:

> > -static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
> > +static inline void *kmalloc_array(size_t n, size_t size, gfp_t flags)
> >  {
> >  	if (size != 0 && n > ULONG_MAX / size)
> >  		return NULL;
> > -	return __kmalloc(n * size, flags | __GFP_ZERO);
> > +	return __kmalloc(n * size, flags);
> > +}
> > +
> > +/**
> > + * kcalloc - allocate memory for an array. The memory is set to zero.
> > + * @n: number of elements.
> > + * @size: element size.
> > + * @flags: the type of memory to allocate (see kmalloc).
> > + */
> > +static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
> > +{
> > +	return kmalloc_array(n, size, flags | __GFP_ZERO);
> >  }
> >  
> >  #if !defined(CONFIG_NUMA) && !defined(CONFIG_SLOB)
> > 
> 
> Does this want adding to Documentation/CodingStyle "Chapter 14: Allocating 
> memory" ?

Spose so.  We could possibly cook up a checkpatch rule too ;)

<gad, CodingStyle has 18 chapters and an appendix??>