Re: [PATCH net] inet: frag: release spinlock before calling icmp_send()

2017-03-22 Thread David Miller
From: Eric Dumazet Date: Wed, 22 Mar 2017 08:57:15 -0700 > From: Eric Dumazet > > Dmitry reported a lockdep splat [1] (false positive) that we can fix > by releasing the spinlock before calling icmp_send() from ip_expire() > > This is a false positive because sending an ICMP message can not >

[PATCH net] inet: frag: release spinlock before calling icmp_send()

2017-03-22 Thread Eric Dumazet
From: Eric Dumazet Dmitry reported a lockdep splat [1] (false positive) that we can fix by releasing the spinlock before calling icmp_send() from ip_expire() This is a false positive because sending an ICMP message can not possibly re-enter the IP frag engine. [1] [ INFO: possible circular lock