[1/3] kills net_mutex and makes net_sem be taken for write instead.
      This is made to take less locks (1 instead of 2) for the time
      before all pernet_operations are converted.

[2-3/3] simplifies dead net cleanup queueing, and makes llist api
        be used for that.


Kirill Tkhai (3):
      net: Kill net_mutex
      net: Make cleanup_list and net::cleanup_list of llist type
      net: Queue net_cleanup_work only if there is first net added

 include/linux/rtnetlink.h   |    1 -
 include/net/net_namespace.h |   12 +++++--
 net/core/net_namespace.c    |   75 ++++++++++++++++++++++---------------------
 3 files changed, 47 insertions(+), 41 deletions(-)

Signed-off-by: Kirill Tkhai <ktk...@virtuozzo.com>

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