Re: [PATCH -V3 2/4] powerpc/kvm: Contiguous memory allocator based hash page table allocation
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2013-07-02 22:28:51
Also in:
kvm, linux-mm
On Tue, 2013-07-02 at 17:12 +0200, Alexander Graf wrote:
Is CMA a mandatory option in the kernel? Or can it be optionally disabled? If it can be disabled, we should keep the preallocated fallback case around for systems that have CMA disabled.
Why ? More junk code to keep around ... If CMA is disabled, we can limit ourselves to dynamic allocation (with limitation to 16M hash table). Cheers, Ben.