Hello:
This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:
On Tue, 29 Apr 2025 15:24:53 +0200 you wrote:
> Recent updates to the locking mechanism that protects IPv6 routing tables
> [1] have affected the SRv6 networking subsystem. Such changes cause
> problems with some SRv6 Endpoints behaviors, like End.B6.Encaps and also
> impact SRv6 counters.
>
> Starting from commit 169fd62799e8 ("ipv6: Get rid of RTNL for SIOCADDRT and
> RTM_NEWROUTE."), the inet6_rtm_newroute() function no longer needs to
> acquire the RTNL lock for creating and configuring IPv6 routes and set up
> lwtunnels.
> The RTNL lock can be avoided because the ip6_route_add() function
> finishes setting up a new route in a section protected by RCU.
> This makes sure that no dev/nexthops can disappear during the operation.
> Because of this, the steps for setting up lwtunnels - i.e., calling
> lwtunnel_build_state() - are now done in a RCU lock section and not
> under the RTNL lock anymore.
>
> [...]
Here is the summary with links:
- [net-next] ipv6: sr: switch to GFP_ATOMIC flag to allocate memory during seg6local LWT setup
https://git.kernel.org/netdev/net-next/c/14a0087e7236
You are awesome, thank you!
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