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authorIdo Schimmel <idosch@mellanox.com>2019-06-18 18:12:44 +0300
committerDavid S. Miller <davem@davemloft.net>2019-06-18 19:45:36 +0300
commitc82481f7ea21be8ec960a28aef07bf258f6820b7 (patch)
treea08c812940496dafd652312cf88f7e1bb2624db1 /include/net/netlink.h
parent3de205cde4ee8e36416f8b1a1510658abb14f408 (diff)
downloadlinux-c82481f7ea21be8ec960a28aef07bf258f6820b7.tar.xz
netlink: Add field to skip in-kernel notifications
The struct includes a 'skip_notify' flag that indicates if netlink notifications to user space should be suppressed. As explained in commit 3b1137fe7482 ("net: ipv6: Change notifications for multipath add to RTA_MULTIPATH"), this is useful to suppress per-nexthop RTM_NEWROUTE notifications when an IPv6 multipath route is added / deleted. Instead, one notification is sent for the entire multipath route. This concept is also useful for in-kernel notifications. Sending one in-kernel notification for the addition / deletion of an IPv6 multipath route - instead of one per-nexthop - provides a significant increase in the insertion / deletion rate to underlying devices. Add a 'skip_notify_kernel' flag to suppress in-kernel notifications. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/netlink.h')
-rw-r--r--include/net/netlink.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/net/netlink.h b/include/net/netlink.h
index ce66e43b9b6a..e4650e5b64a1 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -381,12 +381,14 @@ struct nla_policy {
* @nl_net: Network namespace
* @portid: Netlink PORTID of requesting application
* @skip_notify: Skip netlink notifications to user space
+ * @skip_notify_kernel: Skip selected in-kernel notifications
*/
struct nl_info {
struct nlmsghdr *nlh;
struct net *nl_net;
u32 portid;
- bool skip_notify;
+ u8 skip_notify:1,
+ skip_notify_kernel:1;
};
/**