Re: Correct usage of dev_base_lock in 2020

Vladimir Oltean
2020-11-30T20:27:11Z

On Mon, Nov 30, 2020 at 12:21:29PM -0800, Stephen Hemminger wrote:
> if device is in a private list (in bond device), the way to handle
> this is to use dev_hold() to keep a ref count.

Correct, dev_hold is a tool that can also be used. But it is a tool that
does not solve the general problem - only particular ones. See the other
interesting callers of dev_get_stats in parisc, appldata, net_failover.
We can't ignore that RTNL is used for write-side locking forever.