Sun, May 27, 2018 at 11:17:22PM CEST, vla...@mellanox.com wrote: >Without rtnl lock protection it is no longer safe to use pointer to tc >action without holding reference to it. (it can be destroyed concurrently) > >Remove unsafe action idr lookup function. Instead of it, implement safe tcf >idr check function that atomically looks up action in idr and increments >its reference and bind counters. Implement both action search and check >using new safe function > >Reference taken by idr check is temporal and should not be accounted by >userspace clients (both logically and to preserver current API behavior). >Subtract temporal reference when dumping action to userspace using existing >tca_get_fill function arguments. > >Signed-off-by: Vlad Buslov <vla...@mellanox.com>
Signed-off-by: Jiri Pirko <j...@mellanox.com>
