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From: Stanislav Fomichev <stfomichev@gmail.com>
To: Jakub Kicinski <kuba@kernel.org>
Cc: Stanislav Fomichev <sdf@fomichev.me>,
	netdev@vger.kernel.org, davem@davemloft.net, edumazet@google.com,
	pabeni@redhat.com, linux-kernel@vger.kernel.org,
	horms@kernel.org, donald.hunter@gmail.com,
	michael.chan@broadcom.com, pavan.chebbi@broadcom.com,
	andrew+netdev@lunn.ch, jdamato@fastly.com,
	xuanzhuo@linux.alibaba.com, almasrymina@google.com,
	asml.silence@gmail.com, dw@davidwei.uk
Subject: Re: [PATCH net-next v1 3/4] net: add granular lock for the netdev netlink socket
Date: Fri, 7 Mar 2025 11:35:23 -0800	[thread overview]
Message-ID: <Z8tKe5O7ICE3xK80@mini-arch> (raw)
In-Reply-To: <20250307095049.39cba053@kernel.org>

On 03/07, Jakub Kicinski wrote:
> On Fri,  7 Mar 2025 07:57:24 -0800 Stanislav Fomichev wrote:
> > As we move away from rtnl_lock for queue ops, introduce
> > per-netdev_nl_sock lock.
> 
> What is it protecting?

The 'bindings' field of the netlink socket:

struct netdev_nl_sock {
       struct mutex lock;
       struct list_head bindings; <<<
};

I'm assuming it's totally valid to have several bindings per socket?
(attached to different rx queues)

  reply	other threads:[~2025-03-07 19:35 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-07 15:57 [PATCH net-next v1 0/4] net: remove rtnl_lock from the callers of queue APIs Stanislav Fomichev
2025-03-07 15:57 ` [PATCH net-next v1 1/4] net: create netdev_nl_sock to wrap bindings list Stanislav Fomichev
2025-03-07 15:57 ` [PATCH net-next v1 2/4] net: protect net_devmem_dmabuf_bindings by new net_devmem_bindings_mutex Stanislav Fomichev
2025-03-07 17:49   ` Jakub Kicinski
2025-03-07 19:36     ` Stanislav Fomichev
2025-03-07 15:57 ` [PATCH net-next v1 3/4] net: add granular lock for the netdev netlink socket Stanislav Fomichev
2025-03-07 17:50   ` Jakub Kicinski
2025-03-07 19:35     ` Stanislav Fomichev [this message]
2025-03-07 23:33       ` Jakub Kicinski
2025-03-07 23:34   ` Jakub Kicinski
2025-03-07 23:43     ` Stanislav Fomichev
2025-03-09 21:57       ` Mina Almasry
2025-03-10  5:02         ` Stanislav Fomichev
2025-03-10  5:45           ` Mina Almasry
2025-03-07 15:57 ` [PATCH net-next v1 4/4] net: drop rtnl_lock for queue_mgmt operations Stanislav Fomichev
2025-03-07 23:39   ` Jakub Kicinski
2025-03-07 23:50     ` Stanislav Fomichev
2025-03-08  3:22 ` [PATCH net-next v1 0/4] net: remove rtnl_lock from the callers of queue APIs Jakub Kicinski
2025-03-08  3:33   ` Stanislav Fomichev

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