diff options
| author | Ido Schimmel <idosch@nvidia.com> | 2021-05-19 15:08:18 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-05-19 12:47:47 -0700 |
| commit | eb0e4d59b6edbe678ecfc5d5b77608b634057f08 (patch) | |
| tree | 1aae634352e8eafd3f571a6dac294c583b102dec /net/ipv6 | |
| parent | 340f42f7ff0b87a92e69b50706a6c872da756c89 (diff) | |
net: Add notifications when multipath hash field change
In-kernel notifications are already sent when the multipath hash policy
itself changes, but not when the multipath hash fields change.
Add these notifications, so that interested listeners (e.g., switch ASIC
drivers) could perform the necessary configuration.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/sysctl_net_ipv6.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c index 160bea5db973..d7cf26f730d7 100644 --- a/net/ipv6/sysctl_net_ipv6.c +++ b/net/ipv6/sysctl_net_ipv6.c @@ -44,6 +44,22 @@ static int proc_rt6_multipath_hash_policy(struct ctl_table *table, int write, return ret; } +static int +proc_rt6_multipath_hash_fields(struct ctl_table *table, int write, void *buffer, + size_t *lenp, loff_t *ppos) +{ + struct net *net; + int ret; + + net = container_of(table->data, struct net, + ipv6.sysctl.multipath_hash_fields); + ret = proc_douintvec_minmax(table, write, buffer, lenp, ppos); + if (write && ret == 0) + call_netevent_notifiers(NETEVENT_IPV6_MPATH_HASH_UPDATE, net); + + return ret; +} + static struct ctl_table ipv6_table_template[] = { { .procname = "bindv6only", @@ -160,7 +176,7 @@ static struct ctl_table ipv6_table_template[] = { .data = &init_net.ipv6.sysctl.multipath_hash_fields, .maxlen = sizeof(u32), .mode = 0644, - .proc_handler = proc_douintvec_minmax, + .proc_handler = proc_rt6_multipath_hash_fields, .extra1 = SYSCTL_ONE, .extra2 = &rt6_multipath_hash_fields_all_mask, }, |