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

On Fri, Aug 14, 2026 at 12:31:59AM +0800, Ming Qing wrote:

quoted

在 2026/08/11 17:20 CST Pablo Neira Ayuso [off-list ref] 写道:
This can go away too, for gtp_genl_del_pdp(), the mutex replaces this
incorrect rcu read size lock.

Thanks.

quoted

+	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?

Indeed, I forgot about gtp_dev uses rcu. Thanks for explaining.