diff options
| author | Flavio Leitner <fbl@redhat.com> | 2017-05-29 16:40:22 -0300 |
|---|---|---|
| committer | Ben Pfaff <blp@ovn.org> | 2017-06-06 17:11:07 -0700 |
| commit | 0f28164be02ac007f5b5884002b2eaaa945dd18c (patch) | |
| tree | f040abaac115845a884a20ad8a4cc85dce74522e /lib | |
| parent | 74fd3cdb6eab5f7661e1921d55d30b1998039297 (diff) | |
| download | openvswitch-0f28164be02ac007f5b5884002b2eaaa945dd18c.tar.gz | |
netdev-linux: make tap devices persistent.
When using data path type "netdev", bridge port is a tun device
and when OVS restarts, that device and its network configuration
is lost.
This patch enables the tap device to persist instead.
Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/netdev-linux.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/netdev-linux.c b/lib/netdev-linux.c index 8ae740a17..4763f7428 100644 --- a/lib/netdev-linux.c +++ b/lib/netdev-linux.c @@ -866,6 +866,13 @@ netdev_linux_construct_tap(struct netdev *netdev_) goto error_close; } + if (ioctl(netdev->tap_fd, TUNSETPERSIST, 1)) { + VLOG_WARN("%s: creating tap device failed (persist): %s", name, + ovs_strerror(errno)); + error = errno; + goto error_close; + } + return 0; error_close: @@ -885,6 +892,7 @@ netdev_linux_destruct(struct netdev *netdev_) if (netdev_get_class(netdev_) == &netdev_tap_class && netdev->tap_fd >= 0) { + ioctl(netdev->tap_fd, TUNSETPERSIST, 0); close(netdev->tap_fd); } |