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From: Greg KH <greg@kroah.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: synchronization (or lack thereof) for uevents
Date: Tue, 18 Oct 2005 01:28:25 +0000	[thread overview]
Message-ID: <20051018012825.GB7729@kroah.com> (raw)
In-Reply-To: <C2EEB4E538D3DC48BF57F391F422779321AD2B@SRMANNING.eng.emc.com>

On Mon, Oct 17, 2005 at 11:26:21AM -0400, goggin, edward wrote:
> Is it possible to ignore a hotplug event and deal only with the associated
> uevent?

Yes, udevd does that today when we set /proc/kernel/sys/hotplug to NULL

> It seems that the asynchronous nature of uevents, (that is, they are sent to
> a netlink socket as datagrams -- therefore without a reply
> acknowledgement), makes it difficult to reliably act upon one when it
> is possible that multiple, related uevents, which although being sent
> later, may affect the servicing of the current one.

No, it seems to work quite well.  What problems are you having?

thanks,

greg k-h


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  parent reply	other threads:[~2005-10-18  1:28 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-10-17 15:26 synchronization (or lack thereof) for uevents goggin, edward
2005-10-18  1:06 ` Kay Sievers
2005-10-18  1:28 ` Greg KH [this message]
2005-10-18  1:53 ` goggin, edward
2005-10-18  2:33 ` Greg KH
2005-10-18  2:42 ` goggin, edward
2005-10-18  2:49 ` goggin, edward
2005-10-18  4:36 ` Greg KH

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