linux-kernel - Re: [take3 1/4] kevent: Core files.

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Message-Id: <20060803.143728.43853414.davem@davemloft.net>
Date:	Thu, 03 Aug 2006 14:37:28 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	johnpol@....mipt.ru
Cc:	dada1@...mosbay.com, linux-kernel@...r.kernel.org,
	drepper@...hat.com, netdev@...r.kernel.org, zach.brown@...cle.com
Subject: Re: [take3 1/4] kevent: Core files.

From: Evgeniy Polyakov <johnpol@....mipt.ru>
Date: Thu, 3 Aug 2006 18:55:57 +0400

> I would not call that wrong - system prevents some threads from removing 
> kevents which are counted to be transfered to the userspace, i.e. when 
> dequeuing was awakened and it had seen some events it is possible, that 
> when it will dequeue them part will be removed by other thread, so I 
> prevent this.

Queue is all that matters to be synchronized, so it seems
better to have a mutex on the queue rather than a global
one.  That way, user can only hurt himself.
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