* Ingo Molnar [off-list ref] wrote:

You could avoid all this ugly workaround of bootmem limitations by moving the 
allocation to memblock_alloc() and desupporting the log_buf_len= boot parameter on 
non-memblock architectures.

memblock_alloc() could return -ENOSYS on architectures that do not implement it - 
thus enabling such optional features without ugly #ifdef CONFIG_HAVE_MEMBLOCK 
conditionals.

Thanks,

	Ingo