From: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Date: Sat, 25 Oct 2014 19:12:31 +0000 (-0400)
Subject: sunvnet: Remove irqsave/irqrestore on vio.lock
X-Git-Tag: omap-for-v3.19/fixes-rc1~125^2~347^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=13b13dd97c3a45857b2b622add06b1c70b748abf;p=pandora-kernel.git

sunvnet: Remove irqsave/irqrestore on vio.lock

After the  NAPIfication of sunvnet, we no longer need to
synchronize by doing irqsave/restore on vio.lock in the
I/O fastpath.

NAPI ->poll() is non-reentrant, so all RX processing occurs
strictly in a serialized environment. TX reclaim is done in NAPI
context, so the netif_tx_lock can be used to serialize
critical sections between Tx and Rx paths.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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