Re: [PATCH 1/2] mm/vmalloc: Export purge_vmap_area_lazy()

From: MJ embd
Date: Thu Mar 25 2010 - 04:39:56 EST


On Wed, Mar 24, 2010 at 1:26 PM, Benjamin Herrenschmidt
<benh@xxxxxxxxxxxxxxxxxxx> wrote:
> Some powerpc code needs to ensure that all previous iounmap/vunmap has
> really been flushed out of the MMU hash table. Without that, various
> hotplug operations may fail when trying to return those pieces to
> the hypervisor due to existing active mappings.
Are you talking about KVM or any other hypervisor ?
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