Re: [PATCH v4 6/6] RISC-V: Free-up initrd in free_initrd_mem()

From: Mike Rapoport
Date: Wed Feb 13 2019 - 13:06:15 EST


On Wed, Feb 13, 2019 at 09:54:15AM -0800, Christoph Hellwig wrote:
> On Wed, Feb 13, 2019 at 09:38:36AM +0200, Mike Rapoport wrote:
> > memblock_free() is has no real effect at this point, no idea why arm64
> > calls it.
>
> Looks like the call was added fairly recently by:
>
> commit 05c58752f9dce11e396676eb731a620541590ed0
> Author: CHANDAN VN <chandan.vn@xxxxxxxxxxx>
> Date: Mon Apr 30 09:50:18 2018 +0530
>
> arm64: To remove initrd reserved area entry from memblock
>
> which claims it is to work around the initrd being displayed in
> /sys/kernel/debug/memblock/reserved.
>
> I really think we need to have common behavior there - either do this
> for all architectures or none. I've just sent a series that
> consolidates all but a handful of the free_initrd_mem, so implementing
> any common behavior on top of that would be good.

I've just started to look into it today :)
I'll reply on that thread.

--
Sincerely yours,
Mike.