Re: [Xen-devel] [PATCHv1 net] xen-netback: notify immediately after pushing Tx response.

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Wed, Mar 11, 2015 at 03:27:59PM +0000, David Vrabel wrote:
> This fixes a performance regression introduced by
> 7fbb9d8415d4a51cf542e87cf3a717a9f7e6aedc (xen-netback: release pending
> index before pushing Tx responses)
> 
> Moving the notify outside of the spin locks means it can be delayed a
> long time (if the dealloc thread is descheduled or there is an
> interrupt or softirq).
> 
> Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>

Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>

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