Subject: Re: [RFC PATCH v2 02/11] slab: add private memory allocator header for arch/lib

From: Richard Weinberger <[email-masked]>
Date: Fri, 17 Apr 2015 14:44:35 +0200

Am 17.04.2015 um 14:17 schrieb Christoph Lameter:
> On Fri, 17 Apr 2015, Hajime Tazaki wrote:
> 
>> add header includion for CONFIG_LIB to wrap kmalloc and co. This will
>> bring malloc(3) based allocator used by arch/lib.
> 
> Maybe add another allocator insteadl? SLLB which implements memory
> management using malloc()?

Yeah, that's a good idea.

Hajime, another question, do you really want a malloc/free backend?
I'm not a mm expert, but does malloc() behave exactly as the kernel
counter parts?

In UML we allocate a big file on the host side, mmap() it and give this mapping
to the kernel as physical memory such that any kernel allocator can work with it.

Thanks,
//richard