lkml.org 
[lkml]   [2019]   [Aug]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH bpf-next v2 0/3] xdpsock: allow mmap2 usage for 32bits
Date
This patchset contains several improvements for af_xdp socket umem
mappings for 32bit systems. Also, there is one more patch outside of
this series that on linux-next 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

Prev: https://lkml.org/lkml/2019/8/13/437

v2..v1:
- replaced "libbpf: add asm/unistd.h to xsk to get __NR_mmap2" on
"libbpf: use LFS (_FILE_OFFSET_BITS) instead of direct mmap2
syscall"
- use vmap along with page_address to avoid overkill
- define mmap syscall trace5 for mmap if defined

Ivan Khoronzhuk (3):
libbpf: use LFS (_FILE_OFFSET_BITS) instead of direct mmap2 syscall
xdp: xdp_umem: replace kmap on vmap for umem map
samples: bpf: syscal_nrs: use mmap2 if defined

net/xdp/xdp_umem.c | 36 +++++++++++++++++++++++-----
samples/bpf/syscall_nrs.c | 6 +++++
samples/bpf/tracex5_kern.c | 13 ++++++++++
tools/lib/bpf/Makefile | 1 +
tools/lib/bpf/xsk.c | 49 +++++++++++---------------------------
5 files changed, 64 insertions(+), 41 deletions(-)

--
2.17.1

\
 
 \ /
  Last update: 2019-08-15 14:14    [W:0.134 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site