From: Nick Piggin <nickpiggin@yahoo.com.au>
Date: Thu, 19 Feb 2009 23:06:27 +1100

> On Wednesday 18 February 2009 23:04:27 Tejun Heo wrote:
> > Impact: proper vcache flush on unmap_kernel_range()
> >
> > flush_cache_vunmap() should be called before pages are unmapped.  Add
> > a call to it in unmap_kernel_range().
> >
> > Signed-off-by: Tejun Heo <tj@kernel.org>
> 
> Shouldn't this go as a fix to mainline and even .stable?
> 
> Otherwise:
> Acked-by: Nick Piggin <npiggin@suse.de>

Agreed, this is -stable material:

Acked-by: David S. Miller <davem@davemloft.net>