diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2025-01-15 19:17:07 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-01-15 19:17:08 -0800 |
| commit | 707ec6279dd12b785677976c045e0b9896ca1f2e (patch) | |
| tree | 43b879deb4ee29fd8fed5fafeee890862379d564 /include | |
| parent | bc1e64d5403d7926a3d79fdbbdf628b69f0939a2 (diff) | |
| parent | 83419b61d187ce22aa3da5ffdda850fca3a12600 (diff) | |
Merge branch 'net-reduce-rtnl-pressure-in-unregister_netdevice'
Eric Dumazet says:
====================
net: reduce RTNL pressure in unregister_netdevice()
One major source of RTNL contention resides in unregister_netdevice()
Due to RCU protection of various network structures, and
unregister_netdevice() being a synchronous function,
it is calling potentially slow functions while holding RTNL.
I think we can release RTNL in two points, so that three
slow functions are called while RTNL can be used
by other threads.
v1: https://lore.kernel.org/netdev/20250107130906.098fc8d6@kernel.org/T/#m398c95f5778e1ff70938e079d3c4c43c050ad2a6
====================
Link: https://patch.msgid.link/20250114205531.967841-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/net_namespace.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index 5a2a0df8ad91..0f5eb9db0c62 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -210,6 +210,8 @@ void net_ns_barrier(void); struct ns_common *get_net_ns(struct ns_common *ns); struct net *get_net_ns_by_fd(int fd); +extern struct task_struct *cleanup_net_task; + #else /* CONFIG_NET_NS */ #include <linux/sched.h> #include <linux/nsproxy.h> |