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authorDenis V. Lunev <den@openvz.org>2008-01-18 23:55:19 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:08:08 -0800
commit775516bfa2bd7993620c9039191a0c30b8d8a496 (patch)
tree7385f35edda9f4124b802ccf337c55070d2e00bc /net/irda
parentb7c6ba6eb1234e35a74fb8ba8123232a7b1ba9e4 (diff)
[NETNS]: Namespace stop vs 'ip r l' race.
During network namespace stop process kernel side netlink sockets belonging to a namespace should be closed. They should not prevent namespace to stop, so they do not increment namespace usage counter. Though this counter will be put during last sock_put. The raplacement of the correct netns for init_ns solves the problem only partial as socket to be stoped until proper stop is a valid netlink kernel socket and can be looked up by the user processes. This is not a problem until it resides in initial namespace (no processes inside this net), but this is not true for init_net. So, hold the referrence for a socket, remove it from lookup tables and only after that change namespace and perform a last put. Signed-off-by: Denis V. Lunev <den@openvz.org> Tested-by: Alexey Dobriyan <adobriyan@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/irda')
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