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Message-Id: <20210522191411.21446-1-xiyou.wangcong@gmail.com>
Date: Sat, 22 May 2021 12:14:04 -0700
From: Cong Wang <xiyou.wangcong@...il.com>
To: netdev@...r.kernel.org
Cc: bpf@...r.kernel.org, Cong Wang <cong.wang@...edance.com>
Subject: [Patch bpf v2 0/7] sock_map: some bug fixes and improvements
From: Cong Wang <cong.wang@...edance.com>
This patchset contains a few bug fixes and improvements for sock_map.
Patch 1 improves recvmsg() accuracy for UDP, patch 2 improves UDP
non-blocking read() by retrying on EAGAIN. With both of them, the
failure rate of the UDP test case goes down from 10% to 0%.
Patch 3 is memory leak fix I posted, no change since v1. The rest
patches address similar memory leaks or improve error handling,
including one increases sk_drops counter in error cases. Please
check each patch description for more details.
---
Cong Wang (7):
skmsg: improve udp_bpf_recvmsg() accuracy
selftests/bpf: Retry for EAGAIN in udp_redir_to_connected()
udp: fix a memory leak in udp_read_sock()
skmsg: fix a memory leak in sk_psock_verdict_apply()
skmsg: teach sk_psock_verdict_apply() to return errors
skmsg: pass source psock to sk_psock_skb_redirect()
skmsg: increase sk->sk_drops when dropping packets
include/linux/skmsg.h | 2 -
net/core/skmsg.c | 80 +++++++++----------
net/ipv4/tcp_bpf.c | 24 +++++-
net/ipv4/udp.c | 2 +
net/ipv4/udp_bpf.c | 47 +++++++++--
.../selftests/bpf/prog_tests/sockmap_listen.c | 7 +-
6 files changed, 109 insertions(+), 53 deletions(-)
--
2.25.1
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