From: David Ahern <dsahern@kernel.org>
To: Eric Dumazet <edumazet@google.com>,
"David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org, eric.dumazet@gmail.com
Subject: Re: [PATCH net-next] ipv6: use call_rcu_hurry() in fib6_info_release()
Date: Fri, 26 Apr 2024 08:31:35 -0600 [thread overview]
Message-ID: <6637f6f4-6cdf-4a5b-b464-bd99ae93f6a7@kernel.org> (raw)
In-Reply-To: <20240426104722.1612331-1-edumazet@google.com>
On 4/26/24 4:47 AM, Eric Dumazet wrote:
> This is a followup of commit c4e86b4363ac ("net: add two more
> call_rcu_hurry()")
>
> fib6_info_destroy_rcu() is calling nexthop_put() or fib6_nh_release()
>
> We must not delay it too much or risk unregister_netdevice/ref_tracker
> traces because references to netdev are not released in time.
>
> This should speedup device/netns dismantles when CONFIG_RCU_LAZY=y
>
> Signed-off-by: Eric Dumazet <edumazet@google.com>
> ---
> include/net/ip6_fib.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
Reviewed-by: David Ahern <dsahern@kernel.org>
next prev parent reply other threads:[~2024-04-26 14:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-26 10:47 [PATCH net-next] ipv6: use call_rcu_hurry() in fib6_info_release() Eric Dumazet
2024-04-26 11:21 ` Jiri Pirko
2024-04-26 14:31 ` David Ahern [this message]
2024-04-29 9:10 ` patchwork-bot+netdevbpf
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