On Wed, 2015-09-02 at 14:52 -0700, Martin KaFai Lau wrote: > On Wed, Sep 02, 2015 at 02:30:45PM -0700, Eric Dumazet wrote: > > Object cannot be freed until all cpus have exited their RCU sections. > You meant the dst_destroy() here will wait for all cpus exited their RCU > sections? > > static inline void dst_free(struct dst_entry *dst) > { > if (dst->obsolete > 0) > return; > if (!atomic_read(&dst->__refcnt)) { > dst = dst_destroy(dst); > if (!dst) > return; > } > __dst_free(dst); > }
dst_free() is called after RCU grace period, in the case you are interested in. Look at dst_rcu_free() and rt_free() -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html