From: David Vrabel <david.vrabel@citrix.com>
Date: Wed, 11 Mar 2015 15:27:59 +0000 (+0000)
Subject: xen-netback: notify immediately after pushing Tx response.
X-Git-Tag: omap-for-v4.1/fixes-rc1~306^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c8a4d29988edb0db9ee80669f2e5e21bd9f7e0d0;p=pandora-kernel.git

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>
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