Re: [PATCH net-next v2 0/2] net: Speedup some nexthop handling when having A LOT of nexthops

[David Ahern <dsahern@kernel.org>]

On 8/16/25 5:12 PM, Christoph Paasch via B4 Relay wrote:
> Configuring a very large number of nexthops is fairly possible within a
> reasonable time-frame. But, certain netlink commands can become
> extremely slow.
> 
> This series addresses some of these, namely dumping and removing
> nexthops.
> 
> Signed-off-by: Christoph Paasch <cpaasch@openai.com>
> ---
> Changes in v2:
> - Added another improvement to the series "net: When removing nexthops,
>   don't call synchronize_net if it is not necessary"
> - Fixed typos, made comments within 80-character limit and unified
>   comment-style. (Ido Schimmel)
> - Removed if (nh->id < s_idx) in the for-loop as it is no more needed.
>   (Ido Schimmel)
> - Link to v1: https://lore.kernel.org/r/20250724-nexthop_dump-v1-1-6b43fffd5bac@openai.com
> 
> ---
> Christoph Paasch (2):
>       net: Make nexthop-dumps scale linearly with the number of nexthops
>       net: When removing nexthops, don't call synchronize_net if it is not necessary
> 
>  net/ipv4/nexthop.c | 42 +++++++++++++++++++++++++++++++++++++++---
>  1 file changed, 39 insertions(+), 3 deletions(-)
> ---
> base-commit: bab3ce404553de56242d7b09ad7ea5b70441ea41
> change-id: 20250724-nexthop_dump-f6c32472bcdf
> 
> Best regards,

For the set:
Reviewed-by: David Ahern <dsahern@kernel.org>