From: Jakub Kicinski <kuba@kernel.org>
To: Joe Damato <jdamato@fastly.com>
Cc: netdev@vger.kernel.org, mkarsten@uwaterloo.ca,
gerhard@engleder-embedded.com, jasowang@redhat.com,
xuanzhuo@linux.alibaba.com, mst@redhat.com, leiyang@redhat.com,
"Eugenio Pérez" <eperezma@redhat.com>,
"Andrew Lunn" <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Paolo Abeni" <pabeni@redhat.com>,
"open list:VIRTIO CORE AND NET DRIVERS"
<virtualization@lists.linux.dev>,
"open list" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net-next v5 3/4] virtio-net: Map NAPIs to queues
Date: Thu, 6 Mar 2025 10:21:46 -0800 [thread overview]
Message-ID: <20250306102146.70803a61@kernel.org> (raw)
In-Reply-To: <Z8nUksjJyKEbP68-@LQ3V64L9R2>
On Thu, 6 Mar 2025 09:00:02 -0800 Joe Damato wrote:
> + * - wrap all of the work in a lock (perhaps vi->refill_lock?)
> + * - check netif_running() and return early to avoid a race
> + */
probably netdev instance lock is better here, as it will also
protect the return value of netif_running(). IOW we need to
base the "is the device up" test on some state that's protected
by the lock we take.
next prev parent reply other threads:[~2025-03-06 18:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-27 18:50 [PATCH net-next v5 0/4] virtio-net: Link queues to NAPIs Joe Damato
2025-02-27 18:50 ` [PATCH net-next v5 1/4] virtio-net: Refactor napi_enable paths Joe Damato
2025-02-27 18:50 ` [PATCH net-next v5 2/4] virtio-net: Refactor napi_disable paths Joe Damato
2025-02-27 18:50 ` [PATCH net-next v5 3/4] virtio-net: Map NAPIs to queues Joe Damato
2025-02-28 8:14 ` Jason Wang
2025-03-01 2:27 ` Jakub Kicinski
2025-03-03 16:46 ` Joe Damato
2025-03-03 17:00 ` Joe Damato
2025-03-03 18:33 ` Joe Damato
2025-03-04 0:03 ` Jakub Kicinski
2025-03-04 15:08 ` Joe Damato
2025-03-05 5:11 ` Jason Wang
2025-03-05 16:34 ` Joe Damato
2025-03-06 0:15 ` Jason Wang
2025-03-06 1:42 ` Joe Damato
2025-03-06 2:21 ` Jakub Kicinski
2025-03-06 17:00 ` Joe Damato
2025-03-06 18:21 ` Jakub Kicinski [this message]
2025-02-27 18:50 ` [PATCH net-next v5 4/4] virtio_net: Use persistent NAPI config Joe Damato
2025-02-28 14:39 ` [PATCH net-next v5 0/4] virtio-net: Link queues to NAPIs Lei Yang
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