pull-request: bpf 2018-08-24

pull-request: bpf 2018-08-24

[Daniel Borkmann]

Hi David,

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) Fix BPF sockmap and tls where we get a hang in do_tcp_sendpages()
   when sndbuf is full due to missing calls into underlying socket's
   sk_write_space(), from John.

2) Two BPF sockmap fixes to reject invalid parameters on map creation
   and to fix a map element miscount on allocation failure. Another fix
   for BPF hash tables to use per hash table salt for jhash(), from Daniel.

3) Fix for bpftool's command line parsing in order to terminate on bad
   arguments instead of keeping looping in some border cases, from Quentin.

4) Fix error value of xdp_umem_assign_dev() in order to comply with
   expected bind ops error codes, from Prashant.

Please consider pulling these changes from:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git

Thanks a lot!

----------------------------------------------------------------

The following changes since commit b93c1b5ac8643cc08bb74fa8ae21d6c63dfcb23d:

  hv_netvsc: ignore devices that are not PCI (2018-08-21 12:02:11 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git 

for you to fetch changes up to 785e76d7a2051a9e28b9134d5388a45b16f5eb72:

  tools: bpftool: return from do_event_pipe() on bad arguments (2018-08-23 20:17:57 +0200)

----------------------------------------------------------------
Daniel Borkmann (3):
      bpf, sockmap: fix sock_hash_alloc and reject zero-sized keys
      bpf, sockmap: fix sock hash count in alloc_sock_hash_elem
      bpf: use per htab salt for bucket hash

John Fastabend (2):
      tls: possible hang when do_tcp_sendpages hits sndbuf is full case
      bpf: sockmap: write_space events need to be passed to TCP handler

Prashant Bhole (1):
      xsk: fix return value of xdp_umem_assign_dev()

Quentin Monnet (1):
      tools: bpftool: return from do_event_pipe() on bad arguments

 kernel/bpf/hashtab.c              | 23 +++++++++++++----------
 kernel/bpf/sockmap.c              | 11 +++++++++--
 net/tls/tls_main.c                |  9 +++++++--
 net/xdp/xdp_umem.c                |  4 ++--
 tools/bpf/bpftool/map_perf_ring.c |  5 ++++-
 5 files changed, 35 insertions(+), 17 deletions(-)

Re: pull-request: bpf 2018-08-24

[David Miller]

From: Daniel Borkmann <daniel@iogearbox.net>
Date: Fri, 24 Aug 2018 01:09:29 +0200

> The following pull-request contains BPF updates for your *net* tree.

Pulled, thanks Daniel.