tree 600293aadc93c8f5d5d48bba03fa8087d35e46c7
parent 25121173f7b1e4ac3fc692df6e7b8c52ec36abba
author Michael S. Tsirkin <mst@redhat.com> 1351761392 +0000
committer David S. Miller <davem@davemloft.net> 1351906197 -0400

tun: report orphan frags errors to zero copy callback

When tun transmits a zero copy skb, it orphans the frags
which might need to allocate extra memory, in atomic context.
If that fails, notify ubufs callback before freeing the skb
as a hint that device should disable zerocopy mode.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>