diff options
| author | Kuniyuki Iwashima <kuniyu@amazon.co.jp> | 2021-06-12 21:32:14 +0900 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-06-15 18:01:05 +0200 |
| commit | f9ac779f881c2ec3d1cdcd7fa9d4f9442bf60e80 (patch) | |
| tree | 1350ccbd2a33d8643e102339f265c5ec8a9931c8 /net/ipv4 | |
| parent | bbf29d3a2e49e482d5267311798aec42f00e88f3 (diff) | |
net: Introduce net.ipv4.tcp_migrate_req.
This commit adds a new sysctl option: net.ipv4.tcp_migrate_req. If this
option is enabled or eBPF program is attached, we will be able to migrate
child sockets from a listener to another in the same reuseport group after
close() or shutdown() syscalls.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Benjamin Herrenschmidt <benh@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210612123224.12525-2-kuniyu@amazon.co.jp
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/sysctl_net_ipv4.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index 4fa77f182dcb..6f1e64d49232 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -961,6 +961,15 @@ static struct ctl_table ipv4_net_table[] = { }, #endif { + .procname = "tcp_migrate_req", + .data = &init_net.ipv4.sysctl_tcp_migrate_req, + .maxlen = sizeof(u8), + .mode = 0644, + .proc_handler = proc_dou8vec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE + }, + { .procname = "tcp_reordering", .data = &init_net.ipv4.sysctl_tcp_reordering, .maxlen = sizeof(int), |