diff options
| author | Akhmat Karakotov <hmukos@yandex-team.ru> | 2022-01-31 16:31:21 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-01-31 15:05:24 +0000 |
| commit | e187013abeb4c2a7ec8a4bb978844c7e92a1a6ec (patch) | |
| tree | f5514fabb36ce2897eeb1db3f6f8d6f7d0357d64 /net/core/sysctl_net_core.c | |
| parent | 678dfd5280341d877ca646499bfdc82a3d8b4356 (diff) | |
txhash: Make rethinking txhash behavior configurable via sysctl
Add a per ns sysctl that controls the txhash rethink behavior:
net.core.txrehash. When enabled, the same behavior is retained,
when disabled, rethink is not performed. Sysctl is enabled by default.
Signed-off-by: Akhmat Karakotov <hmukos@yandex-team.ru>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/sysctl_net_core.c')
| -rw-r--r-- | net/core/sysctl_net_core.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index 7b4d485aac7a..dbeb8ecbcd98 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -593,6 +593,15 @@ static struct ctl_table netns_core_table[] = { .extra1 = SYSCTL_ZERO, .proc_handler = proc_dointvec_minmax }, + { + .procname = "txrehash", + .data = &init_net.core.sysctl_txrehash, + .maxlen = sizeof(u8), + .mode = 0644, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE, + .proc_handler = proc_dou8vec_minmax, + }, { } }; @@ -611,7 +620,7 @@ __setup("fb_tunnels=", fb_tunnels_only_for_init_net_sysctl_setup); static __net_init int sysctl_core_net_init(struct net *net) { - struct ctl_table *tbl; + struct ctl_table *tbl, *tmp; tbl = netns_core_table; if (!net_eq(net, &init_net)) { @@ -619,7 +628,8 @@ static __net_init int sysctl_core_net_init(struct net *net) if (tbl == NULL) goto err_dup; - tbl[0].data = &net->core.sysctl_somaxconn; + for (tmp = tbl; tmp->procname; tmp++) + tmp->data += (char *)net - (char *)&init_net; /* Don't export any sysctls to unprivileged users */ if (net->user_ns != &init_user_ns) { |