]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
netlink: Add field to skip in-kernel notifications
authorIdo Schimmel <idosch@mellanox.com>
Tue, 18 Jun 2019 15:12:44 +0000 (18:12 +0300)
committerDavid S. Miller <davem@davemloft.net>
Tue, 18 Jun 2019 16:45:36 +0000 (09:45 -0700)
commitc82481f7ea21be8ec960a28aef07bf258f6820b7
treea08c812940496dafd652312cf88f7e1bb2624db1
parent3de205cde4ee8e36416f8b1a1510658abb14f408
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>
include/net/netlink.h