Messages in this thread |  | | | Date | Wed, 15 Feb 2006 17:51:59 -0500 (EST) | | From | Alan Stern <> | | Subject | Re: [linux-usb-devel] Re: Linux 2.6.16-rc3 |
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On Wed, 15 Feb 2006, Greg KH wrote:
> > > It would only go on the list if the "put" was the last one. Otherwise > > > it would not make any sense to put it on any list. > > > > There's no way to know whether or not any particular "put" is the last > > one. So you have to assume they all are. > > The underlying kobject can "know" that the put was the last one, and > handle it differently if needed. Yes, it would not use a kref anymore, > but that might be needed here.
You would need a kref variant, something which would include room for the list header and a pointer to the release routine. Okay, that does involve less time overhead than what I proposed (although the same amount of space overhead).
Alan Stern
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