[PATCH bpf v5 0/2] xdp: fix hang while unregistering device bound to xdp socket

From: Ilya Maximets <i.maximets@samsung.com>
To: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, bpf@vger.kernel.org,
	xdp-newbies@vger.kernel.org,
	"David S. Miller" <davem@davemloft.net>,
	"Björn Töpel" <bjorn.topel@intel.com>,
	"Magnus Karlsson" <magnus.karlsson@intel.com>,
	"Jonathan Lemon" <jonathan.lemon@gmail.com>,
	"Jakub Kicinski" <jakub.kicinski@netronome.com>,
	"Daniel Borkmann" <daniel@iogearbox.net>,
	"Ilya Maximets" <i.maximets@samsung.com>
Subject: [PATCH bpf v5 0/2] xdp: fix hang while unregistering device bound to xdp socket
Date: Thu, 27 Jun 2019 13:15:27 +0300	[thread overview]
Message-ID: <20190627101529.11234-1-i.maximets@samsung.com> (raw)
In-Reply-To: CGME20190627101535eucas1p27da11c25b0e15474e4c957053de139d9@eucas1p2.samsung.com

Version 5:

    * Fixed incorrect handling of rtnl_lock.

Version 4:

    * 'xdp_umem_clear_dev' exposed to be used while unregistering.
    * Added XDP socket state to track if resources already unbinded.
    * Splitted in two fixes.

Version 3:

    * Declaration lines ordered from longest to shortest.
    * Checking of event type moved to the top to avoid unnecessary
      locking.

Version 2:

    * Completely re-implemented using netdev event handler.

Ilya Maximets (2):
  xdp: hold device for umem regardless of zero-copy mode
  xdp: fix hang while unregistering device bound to xdp socket

 include/net/xdp_sock.h |  5 +++
 net/xdp/xdp_umem.c     | 21 +++++-----
 net/xdp/xdp_umem.h     |  1 +
 net/xdp/xsk.c          | 87 ++++++++++++++++++++++++++++++++++++------
 4 files changed, 93 insertions(+), 21 deletions(-)

-- 
2.17.1