[ovs-git] Open vSwitch: netflow: Avoid (theoretically) looping 2**32 times. (master)

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- Log -----------------------------------------------------------------
commit 9ebc44ae8c5940513a8dcc2aab8dcca8aff9d2a2
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=9ebc44ae8c5940513a8dcc2aab8dcca8aff9d2a2
Author: Ben Pfaff <blp at nicira.com>
		
netflow: Avoid (theoretically) looping 2**32 times.
		
If the netflow byte counter is UINT64_MAX, or at any rate much larger than
UINT32_MAX, netflow_expire() could loop for a very long time.  This commit
avoids that case.

This is only a theoretical bug fix.  I don't know of any actual bug that
would cause a counter to be that high.


commit 48f846e66ef06c39228fb1d3f8d8bfd1c695c93d
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=48f846e66ef06c39228fb1d3f8d8bfd1c695c93d
Author: Ben Pfaff <blp at nicira.com>
		
netflow: Do 64-bit division less often.
		
64-bit division is expensive.  Usually we can avoid it entirely, as done by
this patch.


-----------------------------------------------------------------------

Summary of changes:
 ofproto/netflow.c |   46 ++++++++++++++++++++++++++++++++--------------
 1 files changed, 32 insertions(+), 14 deletions(-)


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