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    [NET]: Make device event notification network namespace safe · e9dc8653
    Eric W. Biederman 提交于
    Every user of the network device notifiers is either a protocol
    stack or a pseudo device.  If a protocol stack that does not have
    support for multiple network namespaces receives an event for a
    device that is not in the initial network namespace it quite possibly
    can get confused and do the wrong thing.
    
    To avoid problems until all of the protocol stacks are converted
    this patch modifies all netdev event handlers to ignore events on
    devices that are not in the initial network namespace.
    
    As the rest of the code is made network namespace aware these
    checks can be removed.
    Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
    Signed-off-by: NDavid S. Miller <davem@davemloft.net>
    e9dc8653
devinet.c 37.1 KB