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

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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
> efficient.)
Hmmmm.

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
https://github.com/manfred-colorfu/ipcscale/blob/master/sem-scalebench.cpp
--
     Manfred

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Re: [PATCH RFC 01/26] netfilter: Replace spin_unlock_wait() with  lock/unlock pair Alan Stern <stern@rowland.harvard.edu> - 2017-07-03 16:50 +0200
  Re: [PATCH RFC 01/26] netfilter: Replace spin_unlock_wait() with  lock/unlock pair "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-03 19:20 +0200
    Re: [PATCH RFC 01/26] netfilter: Replace spin_unlock_wait() with  lock/unlock pair Manfred Spraul <manfred@colorfullife.com> - 2017-07-03 21:10 +0200
      Re: [PATCH RFC 01/26] netfilter: Replace spin_unlock_wait() with  lock/unlock pair Alan Stern <stern@rowland.harvard.edu> - 2017-07-03 22:00 +0200
        Re: [PATCH RFC 01/26] netfilter: Replace spin_unlock_wait() with  lock/unlock pair Manfred Spraul <manfred@colorfullife.com> - 2017-07-06 20:50 +0200
    Re: [PATCH RFC 01/26] netfilter: Replace spin_unlock_wait() with  lock/unlock pair Alan Stern <stern@rowland.harvard.edu> - 2017-07-03 22:10 +0200
      Re: [PATCH RFC 01/26] netfilter: Replace spin_unlock_wait() with  lock/unlock pair "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-03 23:00 +0200

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