Re: [PATCH v3 net-next 08/11] net: bridge: put SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS on the blocking call chain

On 10/02/2021 11:14, Vladimir Oltean wrote: > From: Vladimir Oltean > > Since we would like br_switchdev_set_port_flag to not use an atomic > notifier, it should be called from outside spinlock context. > > We can temporarily drop br->lock, but that creates some concurrency > complications

[PATCH v3 net-next 08/11] net: bridge: put SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS on the blocking call chain

From: Vladimir Oltean Since we would like br_switchdev_set_port_flag to not use an atomic notifier, it should be called from outside spinlock context. We can temporarily drop br->lock, but that creates some concurrency complications (example below is given for sysfs): - There might be an "echo