Re: Query about merging memblock and bootmem into one new alloc

Laura Abbott
2015-12-21T17:24:09Z

On 12/19/2015 05:57 AM, Sumit Gupta wrote:
> Hi All,
>
> For ARM Linux, during booting first memblock reserves memory regions
> then bootmem allocator create node, mem_map, page bitmap data and then
> hands over to buddy.
> I have been thinking from some time about why we need two different
> allocators for this.
> Can we merge both into one(memblock into bootmem) or create a new
> allocator which can speed up the same thing which is easy to enhance
> in future.
> I am not sure about this and whether it's good idea or will it be fruitful.
>
> Please suggest and share your opinion.
>
> Thank you in advance for your help.
>

ARM no longer uses bootmem, just memblock (see 84f452b1e8fc73ac0e31254c66e3e2260ce5263d
ARM: mm: Remove bootmem code and switch to NO_BOOTMEM). Any bootmem calls
just go to mm/nobootmem.c which is a wrapper around memblock for compatibility.

Thanks,
Laura