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(parent: 2512117) | patch
tun: report orphan frags errors to zero copy callback
authorMichael S. Tsirkin <mst@redhat.com>
Thu, 1 Nov 2012 09:16:32 +0000 (09:16 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sat, 3 Nov 2012 01:29:57 +0000 (21:29 -0400)
commit149d36f7187cbd10beff88e4e20f93e51a34827e
tree600293aadc93c8f5d5d48bba03fa8087d35e46c7tree | snapshot
parent25121173f7b1e4ac3fc692df6e7b8c52ec36abbacommit | diff
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>
drivers/net/tun.c diff | blob | history
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