From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oliver Neukum Date: Tue, 06 Feb 2001 23:30:14 +0000 Subject: Re: Adding PCMCIA support to the kernel tree -- developers needed. Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org > My third (and as yet unapplied) call_usermodehelper patch rearranges > the calls to '/sbin/hotplug net' so they happen outside the rtnl_lock, > so I think we could use synchronous-exec mode there. (We don't have > synchronous exec mode at present - that was the other part of the > patch). > > Look. If we really think we need call_usermodehelper to be synchronous > then let's make a swift and solid decision, present a good case to the > boss. No undue haste please. Let's do it right the first time. We do agree that device addition must be processed fully, before device removal is processed, don't we ? Then we have the problem of device node reuse. It means that a user space script for addition of a new device must not be run before all removal handlers are completed. At least I see no alternative. But I am not sure that synchronous operation is free of deadlocks. What happens if a CardBus USB Controller with devices attached is plugged in ? Regards Oliver _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net http://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel