Re: [PATCH net v3] gtp: serialize PDP context updates

> 在 2026/08/11 17:20 CST Pablo Neira Ayuso <[email protected]> 写道:
> This can go away too, for gtp_genl_del_pdp(), the mutex replaces this
> incorrect rcu read size lock.
> 
> Thanks.
> 
> > +	mutex_unlock(&gtp_pdp_lock);
> >  	return err;
> >  }
> >  
> > -- 
> > 2.53.0
> >

gtp_find_pdp() calls gtp_find_dev(), which uses 
dev_get_by_index_rcu(). Should I keep a narrow RCU read-side section 
around gtp_find_pdp(), while using the mutex to protect the PDP context?

Thanks,
Qing