netdev - [PATCH net-next 0/2] net: defer cgroups init to accept()

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Date:   Sun,  8 Oct 2017 21:44:50 -0700
From:   Eric Dumazet <edumazet@...gle.com>
To:     "David S . Miller" <davem@...emloft.net>
Cc:     netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Tejun Heo <tj@...nel.org>, John Sperbeck <jsperbeck@...gle.com>
Subject: [PATCH net-next 0/2] net: defer cgroups init to accept()

After TCP 3WHS became lockless, we should not attempt cgroup games
from sk_clone_lock() since listener/cgroup might be already gone.

Move this business to inet_csk_accept() where we have
the guarantee both parent and child exist.

Many thanks to John Sperbeck for spotting these issues

Eric Dumazet (2):
  net: memcontrol: defer call to mem_cgroup_sk_alloc()
  net: defer call to cgroup_sk_alloc()

 kernel/cgroup/cgroup.c          | 11 -----------
 mm/memcontrol.c                 | 15 ---------------
 net/core/sock.c                 |  8 +++++---
 net/ipv4/inet_connection_sock.c |  6 ++++++
 4 files changed, 11 insertions(+), 29 deletions(-)

-- 
2.14.2.920.gcf0c67979c-goog