From: Cong Wang <xiyou.wangcong@gmail.com>
To: Michal Kubecek <mkubecek@suse.cz>
Cc: "David S. Miller" <davem@davemloft.net>,
Linux Kernel Network Developers <netdev@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
James Morris <jmorris@namei.org>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
Patrick McHardy <kaber@trash.net>,
Hannes Frederic Sowa <hannes@stressinduktion.org>,
Martin KaFai Lau <kafai@fb.com>
Subject: Re: [PATCH net-next v2 3/3] ipv6: per netns FIB garbage collection
Date: Tue, 8 Mar 2016 10:36:17 -0800 [thread overview]
Message-ID: <CAM_iQpUtASVdE=EHGADgaSPWkxnnoafMNyaDvbSo=V0DvD_ivA@mail.gmail.com> (raw)
In-Reply-To: <a954fd75251de99cf39e6785f971dbffdd6503b0.1457443527.git.mkubecek@suse.cz>
On Tue, Mar 8, 2016 at 5:44 AM, Michal Kubecek <mkubecek@suse.cz> wrote:
> One of our customers observed issues with FIB6 garbage collectors
> running in different network namespaces blocking each other, resulting
> in soft lockups (fib6_run_gc() initiated from timer runs always in
> forced mode).
>
> Now that FIB6 walkers are separated per namespace, there is no more need
> for instances of fib6_run_gc() in different namespaces blocking each
> other. There is still a call to icmp6_dst_gc() which operates on shared
> data but this function is protected by its own shared lock.
>
> Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
next prev parent reply other threads:[~2016-03-08 18:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-08 13:44 [PATCH net-next v2 0/3] ipv6: per netns FIB6 walkers and garbage collector Michal Kubecek
2016-03-08 13:44 ` [PATCH net-next v2 1/3] ipv6: replace global gc_args with local variable Michal Kubecek
2016-03-08 18:25 ` Cong Wang
2016-03-08 13:44 ` [PATCH net-next v2 2/3] ipv6: per netns fib6 walkers Michal Kubecek
2016-03-08 18:34 ` Cong Wang
2016-03-08 13:44 ` [PATCH net-next v2 3/3] ipv6: per netns FIB garbage collection Michal Kubecek
2016-03-08 18:36 ` Cong Wang [this message]
2016-03-08 20:17 ` [PATCH net-next v2 0/3] ipv6: per netns FIB6 walkers and garbage collector David Miller
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