Re: [RT PATCH 2/2] net: add a lock around icmp_sk()
From: Eric Dumazet <hidden>
Date: 2016-09-01 13:11:06
Also in:
lkml, netdev
From: Eric Dumazet <hidden>
Date: 2016-09-01 13:11:06
Also in:
lkml, netdev
On Thu, 2016-09-01 at 10:11 +0200, Sebastian Andrzej Siewior wrote:
On !RT local_lock() is preempt_disable(). On RT local_lock() is a per-CPU sleeping spinlock which can be taken recursively by the owner.
Ok, thanks for the explanation, the 'recursively' part I was not aware of ;)