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    • John Stultz's avatar
      net: Explicitly initialize u64_stats_sync structures for lockdep · 827da44c
      John Stultz authored
      In order to enable lockdep on seqcount/seqlock structures, we
      must explicitly initialize any locks.
      
      The u64_stats_sync structure, uses a seqcount, and thus we need
      to introduce a u64_stats_init() function and use it to initialize
      the structure.
      
      This unfortunately adds a lot of fairly trivial initialization code
      to a number of drivers. But the benefit of ensuring correctness makes
      this worth while.
      
      Because these changes are required for lockdep to be enabled, and the
      changes are quite trivial, I've not yet split this patch out into 30-some
      separate patches, as I figured it would be better to get the various
      maintainers thoughts on how to best merge this change along with
      the seqcount lockdep enablement.
      
      Feedback would be appreciated!
      Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
      Acked-by: default avatarJulian Anastasov <ja@ssi.bg>
      Signed-off-by: default avatarPeter Zijlstra <peterz@infradead.org>
      Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Eric Dumazet <eric.dumazet@gmail.com>
      Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
      Cc: James Morris <jmorris@namei.org>
      Cc: Jesse Gross <jesse@nicira.com>
      Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
      Cc: "Michael S. Tsirkin" <mst@redhat.com>
      Cc: Mirko Lindner <mlindner@marvell.com>
      Cc: Patrick McHardy <kaber@trash.net>
      Cc: Roger Luethi <rl@hellgate.ch>
      Cc: Rusty Russell <rusty@rustcorp.com.au>
      Cc: Simon Horman <horms@verge.net.au>
      Cc: Stephen Hemminger <stephen@networkplumber.org>
      Cc: Steven Rostedt <rostedt@goodmis.org>
      Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
      Cc: Wensong Zhang <wensong@linux-vs.org>
      Cc: netdev@vger.kernel.org
      Link: http://lkml.kernel.org/r/1381186321-4906-2-git-send-email-john.stultz@linaro.orgSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      827da44c
  15. 02 Nov, 2013 1 commit
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