[PATCH v21 099/100] c/r: Add checkpoint support to macvlan driver
From: Oren Laadan <hidden>
Date: 2010-05-01 14:41:36
Also in:
lkml
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Dan Smith <redacted> Changelog[v21]: - Do not include checkpoint_hdr.h explicitly - Unbreak compiling with CONFIG_CHECKPOINT=n or CONFIG_NET_NS=n Cc: netdev@vger.kernel.org Signed-off-by: Dan Smith <redacted> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Serge Hallyn <redacted> Acked-by: Oren Laadan <redacted> --- drivers/net/macvlan.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 48 insertions(+), 0 deletions(-)
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 40faa36..360828e 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c@@ -455,6 +455,51 @@ static struct net_device_stats *macvlan_dev_get_stats(struct net_device *dev) return stats; } +#include <linux/checkpoint.h> + +#ifdef CONFIG_NETNS_CHECKPOINT +static int macvlan_checkpoint(struct ckpt_ctx *ctx, struct net_device *dev) +{ + struct macvlan_dev *vlan = netdev_priv(dev); + struct ckpt_hdr_netdev *h; + struct ckpt_netdev_addr *addrs; + int ret; + + ckpt_debug("Checkpointing macvlan %s:%s\n", + dev->name, vlan->lowerdev->name); + + h = ckpt_netdev_base(ctx, dev, &addrs); + if (IS_ERR(h)) + return PTR_ERR(h); + + h->type = CKPT_NETDEV_MACVLAN; + + h->macvlan.mode = vlan->mode; + + ret = ckpt_write_obj(ctx, (struct ckpt_hdr *)h); + if (ret < 0) + goto out; + + ret = ckpt_write_buffer(ctx, dev->name, IFNAMSIZ); + if (ret < 0) + goto out; + + ret = ckpt_write_buffer(ctx, vlan->lowerdev->name, IFNAMSIZ); + if (ret < 0) + goto out; + + if (h->inet_addrs > 0) { + int len = (sizeof(struct ckpt_netdev_addr) * h->inet_addrs); + ret = ckpt_write_buffer(ctx, addrs, len); + } + out: + ckpt_hdr_put(ctx, h); + kfree(addrs); + + return ret; +} +#endif + static void macvlan_ethtool_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo) {
@@ -501,6 +546,9 @@ static const struct net_device_ops macvlan_netdev_ops = { .ndo_set_multicast_list = macvlan_set_multicast_list, .ndo_get_stats = macvlan_dev_get_stats, .ndo_validate_addr = eth_validate_addr, +#ifdef CONFIG_NETNS_CHECKPOINT + .ndo_checkpoint = macvlan_checkpoint, +#endif }; static void macvlan_setup(struct net_device *dev)
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1.6.3.3