tree 50f9190ebc04eba36802a8f56f321197a4f613cc
parent b664e3673c6c2ca228ce025292e32b34f73df5f5
author Mark McLoughlin <markmc@redhat.com> 1245345692 +0100
committer Anthony Liguori <aliguori@us.ibm.com> 1245683730 -0500

net: handle EAGAIN from tapfd write()

If a write() on tapfd returns EAGAIN, return zero so that the packet
gets queued (in the case of async send) and enable polling tapfd for
writing.

When tapfd becomes writable, disable write polling and flush any queued
packets.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>