Re: [PATCH v2] net: use exponential backoff in netdev_wait_allrefs

2020-09-17 Thread David Miller
From: frugg...@arista.com (Francesco Ruggeri) Date: Thu, 17 Sep 2020 15:19:22 -0700 > static void netdev_wait_allrefs(struct net_device *dev) > { > unsigned long rebroadcast_time, warning_time; > int refcnt; > + unsigned int wait = MIN_MSLEEP; Please preserve the reverse christm

[PATCH v2] net: use exponential backoff in netdev_wait_allrefs

2020-09-17 Thread Francesco Ruggeri
The combination of aca_free_rcu, introduced in commit 2384d02520ff ("net/ipv6: Add anycast addresses to a global hashtable"), and fib6_info_destroy_rcu, introduced in commit 9b0a8da8c4c6 ("net/ipv6: respect rcu grace period before freeing fib6_info"), can result in an extra rcu grace period being n