• Ido Schimmel's avatar
    ipv4: fib: Allow for consistent FIB dumping · cacaad11
    Ido Schimmel authored
    The next patch will enable listeners of the FIB notification chain to
    request a dump of the FIB tables. However, since RTNL isn't taken during
    the dump, it's possible for the FIB tables to change mid-dump, which
    will result in inconsistency between the listener's table and the
    kernel's.
    
    Allow listeners to know about changes that occurred mid-dump, by adding
    a change sequence counter to each net namespace. The counter is
    incremented just before a notification is sent in the FIB chain.
    Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
    Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    cacaad11
ipv4.h 3.2 KB