From: Eric Dumazet <eduma...@google.com> Date: Fri, 24 May 2019 09:03:29 -0700
> This patch series fixes a race happening on netns dismantle with > frag queues. While rhashtable_free_and_destroy() is running, > concurrent timers might run inet_frag_kill() and attempt > rhashtable_remove_fast() calls. This is not allowed by > rhashtable logic. > > Since I do not want to add expensive synchronize_rcu() calls > in the netns dismantle path, I had to no longer inline > netns_frags structures, but dynamically allocate them. > > The ten first patches make this preparation, so that > the last patch clearly shows the fix. > > As this patch series is not exactly trivial, I chose to > target 5.3. We will backport it once soaked a bit. Ok, applied to net-next. Everything except the last patch looks trivially correct to me.
