K 10
svn:author
V 6
rstone
K 8
svn:date
V 27
2016-11-26T01:16:33.077717Z
K 7
svn:log
V 675
MFC r308580:

  Don't read if_counters with if_addr_lock held

  Calling into an ifnet implementation with the if_addr_lock already
  held can cause a LOR and potentially a deadlock, as ifnet
  implementations typically can take the if_addr_lock after their
  own locks during configuration.  Refactor a sysctl handler that
  was violating this to read if_counter data in a temporary buffer
  before the if_addr_lock is taken, and then copying the data
  in its final location later, when the if_addr_lock is held.

  PR: 194109
  Reported by: Jean-Sebastien Pedron
  MFC after: 2 weeks
  Differential Revision:        https://reviews.freebsd.org/D8498
  Reviewed by: sbruno

END