Re: [PATCH v4] net: use exponential backoff in netdev_wait_allrefs

2020-09-18 Thread David Miller
From: frugg...@arista.com (Francesco Ruggeri) Date: Fri, 18 Sep 2020 13:19:01 -0700 > 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

[PATCH v4] net: use exponential backoff in netdev_wait_allrefs

2020-09-18 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