Re: [Xen-devel] [PATCH] make blkfront/blktagp2 respect the elevator=xyz command line option

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Fri, Oct 09, 2009 at 06:31:54PM +0200, Paolo Bonzini wrote:
> For some workloads, CFQ has better performance than the no-op scheduler
> that is forced by the blkfront driver.  The only way to set a different
> scheduler is the sysfs interface, because elevator_init is called
> unconditionally.  This patch allows one to use "elevator=cfq" as well.
> 
> While one could argue that the driver's behavior is expected (after all
> "elevator=cfq" is the default and should not have any effect), the
> do-what-I-mean behavior implemented by this patch is more logical.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>

Are you going to follow another patch for the upstream driver as well?
Or is that not needed at all in the 2.6.31 tree?

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