Re: [PATCH RFC 01/26] netfilter: Replace spin_unlock_wait() with lock/unlock pair

From: Manfred Spraul
Date: Thu Jul 06 2017 - 14:43:40 EST

This is a multi-part message in MIME format. Hi Alan,

On 07/03/2017 09:57 PM, Alan Stern wrote:

(Alternatively, you could make nf_conntrack_all_unlock() do a
lock+unlock on all the locks in the array, just like
nf_conntrack_all_lock(). But of course, that would be a lot less

Someone with a weakly ordered system who can test this?
semop() has a very short hotpath.

Either with aim9.shared_memory.ops_per_sec or

#sem-scalebench -t 10 -m 0