From: Cong Wang <cong.wang@xxxxxxxxxxxxx>
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 1%.
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 for error cases. Please
check each patch description for more details.
---
v3: add another bug fix as patch 4
update patch 5 accordingly
address John's review on the last patch
fix a few typos in patch descriptions
v2: group all patches together
set max for retries of EAGAIN
Cong Wang (8):
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: clear skb redirect pointer before dropping it
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 | 82 +++++++++----------
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, 112 insertions(+), 52 deletions(-)
--
2.25.1
