mbox series

[bpf,0/2] tcp_bpf: Fix the sk_mem_uncharge logic in tcp_bpf_sendmsg

Message ID 20241016234838.3167769-1-zijianzhang@bytedance.com (mailing list archive)
Headers show
Series tcp_bpf: Fix the sk_mem_uncharge logic in tcp_bpf_sendmsg | expand

Message

Zijian Zhang Oct. 16, 2024, 11:48 p.m. UTC 
From: Zijian Zhang <zijianzhang@bytedance.com>

When apply_bytes are not zero, sk_mem_uncharge for __SK_REDIRECT and
__SK_DROP in tcp_bpf_sendmsg has some problem. Added a selftest to trigger
the memory accounting WARNING, and fixed the sk_mem_uncharge logic in
tcp_bpf_sendmsg

Zijian Zhang (2):
  selftests/bpf: Add apply_bytes test to test_txmsg_redir_wait_sndmem in
    test_sockmap
  tcp_bpf: Fix the sk_mem_uncharge logic in tcp_bpf_sendmsg

 net/ipv4/tcp_bpf.c                         | 11 ++++-------
 tools/testing/selftests/bpf/test_sockmap.c |  6 +++++-
 2 files changed, 9 insertions(+), 8 deletions(-)