On Wed, Sep 15, 2021 at 04:46:37PM +0200, Florian Westphal wrote: > nf_nat_masquerade registers conntrack notifiers to early-expire > conntracks that have been using the downed device/removed address. > > With large number of disappearing devices (ppp), iterating the table > for every notification blocks the rtnl lock for multiple seconds. > > This change unconditionally defers the walk to the system work queue > so that rtnl lock is not blocked longer than needed. > > This is not a regression, the notifier and cleanup walk have existed > since the functionality was added more than 20 years ago. Series applied, thanks.