Re: [PATCH 02/28] staging: android: ion: use vmap instead of vm_map_ram

From: Greg KH
Date: Wed Apr 08 2020 - 09:27:19 EST


On Wed, Apr 08, 2020 at 01:59:00PM +0200, Christoph Hellwig wrote:
> vm_map_ram can keep mappings around after the vm_unmap_ram. Using that
> with non-PAGE_KERNEL mappings can lead to all kinds of aliasing issues.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>