From: Jason Wang <jasowang@redhat.com>
Date: Wed, 2 May 2012 03:41:58 +0000 (+0800)
Subject: macvtap: zerocopy: put page when fail to get all requested user pages
X-Git-Tag: v3.5-rc1~109^2~146^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=02ce04bb3d28c3333231f43bca677228dbc686fe;p=pandora-kernel.git

macvtap: zerocopy: put page when fail to get all requested user pages

When get_user_pages_fast() fails to get all requested pages, we could not use
kfree_skb() to free it as it has not been put in the skb fragments. So we need
to call put_page() instead.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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