tree ed2c40642f474a6e7b4adbaf54ddcdfd1ddbf8ff
parent b1cb59cf2efe7971d3d72a7b963d09a512d994c9
author David Vrabel <david.vrabel@citrix.com> 1426087679 +0000
committer David S. Miller <davem@davemloft.net> 1426131044 -0400

xen-netback: notify immediately after pushing Tx response.

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@citrix.com>
Reviewed-by: Zoltan Kiss <zoltan.kiss@linaro.org>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>