sunrpc: fix UDP memory accounting
authorPaolo Abeni <pabeni@redhat.com>
Thu, 25 Aug 2016 16:42:35 +0000 (18:42 +0200)
committerTrond Myklebust <trond.myklebust@primarydata.com>
Sat, 3 Sep 2016 14:00:49 +0000 (10:00 -0400)
commita41bd25ae67d3e4052c7f00ee9f2b4ba9219309e
treeb2778087d05d75f9f08f9ea1edd103e1b1864d33
parent98b0f80c2396224bbbed81792b526e6c72ba9efa
sunrpc: fix UDP memory accounting

The commit f9b2ee714c5c ("SUNRPC: Move UDP receive data path
into a workqueue context"), as a side effect, moved the
skb_free_datagram() call outside the scope of the related socket
lock, but UDP sockets require such lock to be held for proper
memory accounting.
Fix it by replacing skb_free_datagram() with
skb_free_datagram_locked().

Fixes: f9b2ee714c5c ("SUNRPC: Move UDP receive data path into a workqueue context")
Reported-and-tested-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Cc: stable@vger.kernel.org # 4.4+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
net/sunrpc/xprtsock.c