On Wed, 21 Feb 2007, Pekka J Enberg wrote:
> +void *krealloc(const void *p, size_t new_size, gfp_t flags)
> +{
> + void *ret;
> +
> + if (unlikely(!p))
> + return kmalloc_track_caller(new_size, flags);
> +
> + if (unlikely(!new_size)) {
> + kfree(p);
> + return NULL;
> + }
> +
> + ret = kmalloc_track_caller(new_size, flags);
> + if (!ret)
> + return NULL;
> +
> + memcpy(ret, p, min(new_size, ksize(p)));
> + kfree(p);
> + return ret;
> +}
> +EXPORT_SYMBOL(krealloc);
Well could you check ksize for the old object first and if ksize <= new
size then just skip the copy? I think this may allow you
to get rid of the ksize callers.
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