[PATCH bpf-next 0/3] xdpsock: allow mmap2 usage for 32bits

[Ivan Khoronzhuk]

This patchset contains several improvements for af_xdp socket umem
mappings for 32bit systems. Also, there is one more patch outside of
othis series that can be applied to another tree and related to mmap2
af_xdp umem offsets:
"mm: mmap: increase sockets maximum memory size pgoff for 32bits"
https://lkml.org/lkml/2019/8/12/549

Based on bpf-next/master

Ivan Khoronzhuk (3):
  libbpf: add asm/unistd.h to xsk to get __NR_mmap2
  xdp: xdp_umem: replace kmap on vmap for umem map
  samples: bpf: syscal_nrs: use mmap2 if defined

 net/xdp/xdp_umem.c         | 16 ++++++++++++----
 samples/bpf/syscall_nrs.c  |  5 +++++
 samples/bpf/tracex5_kern.c | 11 +++++++++++
 tools/lib/bpf/xsk.c        |  1 +
 4 files changed, 29 insertions(+), 4 deletions(-)

-- 
2.17.1