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https://github.com/torvalds/linux
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56bfa7ee7c
This patch fixes ordering of rtnl notifications during unregister_netdevice by moving RTM_DELLINK notification to until after ndo_uninit. The problem was seen with unregistering bond netdevices. bond ndo_uninit callback generates a few RTM_NEWLINK notifications for NETDEV_CHANGEADDR and NETDEV_FEAT_CHANGE. This is seen mostly when the bond is deleted with slaves still enslaved to the bond. During unregister netdevice (rollback_registered_many to be specific) bond ndo_uninit is called after RTM_DELLINK notification goes out. This results in userspace seeing RTM_DELLINK followed by a couple of RTM_NEWLINK's. In userspace problem was seen with libnl. libnl cache deletes the bond when it sees RTM_DELLINK and re-adds the bond with the following RTM_NEWLINK. Resulting in a stale bond entry in libnl cache when the kernel has already deleted the bond. This patch has been tested for bond, bridges and vlan devices. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| datagram.c | ||
| dev.c | ||
| dev_addr_lists.c | ||
| dev_ioctl.c | ||
| drop_monitor.c | ||
| dst.c | ||
| ethtool.c | ||
| fib_rules.c | ||
| filter.c | ||
| flow.c | ||
| flow_dissector.c | ||
| gen_estimator.c | ||
| gen_stats.c | ||
| iovec.c | ||
| link_watch.c | ||
| Makefile | ||
| neighbour.c | ||
| net-procfs.c | ||
| net-sysfs.c | ||
| net-sysfs.h | ||
| net-traces.c | ||
| net_namespace.c | ||
| netclassid_cgroup.c | ||
| netevent.c | ||
| netpoll.c | ||
| netprio_cgroup.c | ||
| pktgen.c | ||
| ptp_classifier.c | ||
| request_sock.c | ||
| rtnetlink.c | ||
| scm.c | ||
| secure_seq.c | ||
| skbuff.c | ||
| sock.c | ||
| sock_diag.c | ||
| stream.c | ||
| sysctl_net_core.c | ||
| timestamping.c | ||
| user_dma.c | ||
| utils.c | ||